Keeping your lawn mower running smoothly often depends on small but crucial parts, and the side discharge chute is a perfect example. This simple attachment directs grass clippings away from the mower deck, preventing clogs and ensuring a clean, efficient cut. Whether you’re replacing a broken chute or upgrading your mower’s functionality, choosing the right one is key. A proper fit ensures your mower performs at its best, saves you from frustrating jams, and helps maintain a healthy lawn by evenly distributing clippings. In this roundup, we’ve tested and reviewed the top side discharge chutes on the market to help you find the perfect match for your machine.
Quick Product Comparison
Our Top 10 Lawn Mower Side Discharge Chute Reviews – Expert Tested & Recommended
1. MTD 731-07131 Side Discharge Chute
This MTD 731-07131 chute is a top-tier replacement designed for a wide range of popular Craftsman, MTD, and Troy-Bilt models. It’s engineered to match the original equipment manufacturer (OEM) specifications, ensuring a seamless fit and optimal performance. The chute is built to withstand regular use and harsh cutting conditions, making it a reliable part for maintaining your mower’s efficiency. Its design promotes clean clippings ejection, reducing deck clogs significantly.
Key Features That Stand Out
✓ Direct OEM replacement for numerous models including TB130, TB200, TB220, TB240, TB340, TB360, TB370, TB380ES
✓ Durable construction with high-quality plastic resistant to UV rays and impact
✓ Includes necessary mounting hardware for a complete installation
✓ Precision-molded to match original part number 731-07131
✓ Promotes efficient grass discharge and prevents engine bogging down
Why We Recommend It
We recommend the MTD 731-07131 because it’s the most versatile and reliable chute on our list. It fits a massive range of mowers, meaning chances are high it’s compatible with yours. The build quality feels substantial and it installs easily, often requiring no extra tools. For anyone needing a guaranteed-fit part that performs like the original, this is the safest and most effective bet.
Best For
This chute is best for owners of Troy-Bilt, Craftsman, and MTD push mowers with 21″ decks from the late 2000s onward. It’s ideal for those who want a no-compromise, direct replacement that restores their mower’s factory-level performance and reliability.
Pros and Cons
Pros:
- Extremely wide compatibility across major brands and models
- OEM-quality fit and finish; looks and functions like the original
- Durable material that resists cracking and sun damage
- Typically includes the required hinge pin and spring
Cons:
- Can be slightly more expensive than generic no-name alternatives
- Some users note the included instructions could be clearer
Customer Reviews
Customer Review: “Fits but wish it came with instructions on how to put it on the lawnmower.”
Customer Review: “Perfect fit for my Troy-Bilt TB370. It was an exact match for the broken chute. Installation took 5 minutes. Works perfectly, no more clogs.”
2. MTD 731-07486 Side Discharge Chute
This version of the 731-07486 chute is specifically tailored for MTD 21″ self-propelled mowers, offering a precise fit for models like the Troy-Bilt TB110 and TB130. It’s a direct replacement that restores your mower’s side-discharge functionality without any modifications. The plastic construction is robust enough for daily use, and its design effectively channels clippings away from the mower deck, preventing the buildup that can strain the engine.
Key Features That Stand Out
✓ Exact OEM replacement part number 731-07486
✓ Designed for 21-inch deck self-propelled walk-behind mowers
✓ Compatible with Troy-Bilt TB110, TB130, TB1100 and many MTD models
✓ Simple “hook and latch” installation onto the existing mulch door mechanism
✓ Helps maintain mower deck cleanliness and engine performance
Why We Recommend It
This chute earns our Editor’s Choice for its perfect balance of specificity and value. It’s not as universally compatible as the 731-07131, but for the exact models it fits, it’s impeccable. Users consistently report it’s a “direct fit” that works just like the original part. The slight flex in the plastic is actually a benefit, as it can absorb minor impacts without breaking.
Best For
Owners of specific MTD and Troy-Bilt 21″ self-propelled mowers (TB110, TB130 series) who need a guaranteed, no-fuss replacement. It’s perfect for DIYers who want a part that snaps right in place without drilling or adapters.
Pros and Cons
Pros:
- Precise fit for targeted model range; no guessing
- Easy, tool-free installation using existing mulch door hardware
- Good quality plastic that is flexible yet sturdy
- Cost-effective compared to dealer OEM pricing
Cons:
- Not compatible with all 21″ MTD decks—must verify part number
- The flap can be a bit stiffer than the original on some units
Customer Reviews
Customer Review: “Works as expected. A little flimsy compared to my expectations. I cant complain for the price. If needed, i would buy it again”
Customer Review: “Direct fit to the oem part. Plastic seems good quality. I own the part for two years and still is top shape.”
3. MTD Replacement Part Side Discharge Chute
This is the go-to budget-friendly, OEM-authorized side discharge chute for a vast array of MTD-made mowers from 2009 onward. It carries the official MTD part number 731-7131 and is designed to fit Troy-Bilt, Craftsman, Cub Cadet, Yard Machines, and more. For the price, it delivers exceptional value, offering the same function and a very close fit to the more expensive dealer parts. It’s a smart choice for cost-conscious homeowners.
Key Features That Stand Out
✓ OEM authorized part number 731-7131 (also listed as 731-07131)
✓ Fits most MTD 21″ deck mowers built 2009 and later
✓ Universal compatibility across Troy-Bilt, Craftsman, Cub Cadet, Yard-Man
✓ Includes the helpful metal retaining loop for handlebar storage
✓ Simple installation that typically takes under 5 minutes
Why We Recommend It
We recommend this chute because it proves you don’t need to spend a fortune for a quality part. As an OEM-authorized component, it meets MTD’s standards but is sold at a fraction of the dealer price. The reviews consistently praise its fit and durability, with many users saying it’s indistinguishable from the original. The included storage loop is a small but brilliant touch that keeps the chute attached to the mower handle when not in use.
Best For
Budget-minded DIYers and homeowners with older MTD-platform mowers (2009+) who need a functional, reliable replacement without the premium price tag. It’s especially great as a spare part to have on hand for the next rainy season.
Pros and Cons
Pros:
- Extremely affordable for an OEM-authorized part
- Broad compatibility with hundreds of model numbers
- Easy, tool-free installation
- Includes convenient storage loop
Cons:
- The plastic can feel slightly thinner than a premium OEM part
- May require slight adjustment on very old or non-standard models
Customer Reviews
Customer Review: “I purchased this product in July of 2021. My previous chute has gotten chewed up while I was not paying attention when mowing the yard. After finding the model number, I found this chute which fits perfectly. It’s as easy an install as the original chute and to be honest, it’s probably even better than the original. Along with the loop, which allows you to keep it with the handlebars, I think this is a great buy and recommend it for anyone needing to replace their original piece.”
Customer Review: “Installation was easy. I got this for an older Yard-Man mower so I could cut taller grass. I highly recommend getting one if you frequently deal with tall grass. It prevents your mower from clogging and shutting down.”
4. MTD 731-07486 Side Discharge Chute
This is another variant of the 731-07486, listed as a direct replacement for Craftsman, MTD, and Troy-Bilt lawn mowers. It’s crucial to double-check your old chute’s part number and physical shape before ordering, as the listing includes important compatibility warnings. When it matches, it’s a flawless OEM replacement that brings back the side discharge function instantly. The part is molded to the exact specifications needed for a secure fit on the supported models.
Key Features That Stand Out
✓ Replaces part number 731-07486 exactly
✓ Fits many Craftsman, MTD, and Troy-Bilt 21″ deck models
✓ Important note: Does NOT fit 917.370412 or Craftsman Intek 500cc 19.5hp (917.288070)
✓ Requires visual confirmation—your old chute must look identical to the listing photo
✓ Made from durable, impact-resistant plastic
Why We Recommend It
We recommend this specific listing because it’s very clear about its limitations, which is a sign of an honest seller. If your mower matches the criteria (part number 731-07486 and correct shape), this will be a perfect, cost-effective replacement. It’s a testament to the fact that even within the same part number, slight design revisions can occur over years of production, and this seller helps you navigate that.
Best For
Owners of specific Craftsman, MTD, and Troy-Bilt mowers who have physically verified their old chute is the 731-07486 style. It’s for the meticulous DIYer who reads descriptions carefully and wants to avoid a return.
Pros and Cons
Pros:
- Precise OEM replacement when compatibility is confirmed
- Clear compatibility warnings help prevent wrong purchases
- Solid construction that holds up to regular use
- Often available with fast shipping
Cons:
- Compatibility is very specific; not a universal 731-07486
- Requires visual check of your old part, which can be a hassle
Customer Reviews
Customer Review: “Perfect fit will bye again it need a to replace in future”
Customer Review: “It’s a precise OE replacement. It was available locally; roughly 22% cheaper….. I was in a hurry. 😎”
5. 731-07486 Side Discharge Chute for 21″ Deck Lawn Mowers – Compatible with Troy-Bilt TB110 TB130 TB220 TB230
This listing provides extensive cross-reference numbers for the 731-07486 chute, making it easier to match with your mower’s parts catalog. It’s compatible with a long list of Craftsman, MTD, and Yard Man models, offering a reliable solution for many 21″ deck owners. The product is a direct replacement that installs using the existing hardware on your mower’s mulch door, restoring full side discharge capability quickly and effectively.
Key Features That Stand Out
✓ Part number: 731-07486 / 73107486
✓ Extensive compatibility list for Craftsman (247376830, 247370160, etc.), MTD, and Yard Man
✓ Fits models: TB110, TB130, TB220, TB230, and many more
✓ Uses the metal bar on the mulch door for secure attachment
✓ Helps prevent deck clogging and maintains cutting efficiency
Why We Recommend It
We recommend this for its thorough compatibility documentation. If you’re cross-referencing part numbers from a manual or an old chute, this listing is a goldmine. It takes the guesswork out of finding the right part. The reviews confirm it’s a solid, functional replacement that does the job without any surprises, making it a trusted choice for the common 731-07486 application.
Best For
Anyone who has a parts list or an old chute with a number like 731-07486 and needs to confirm compatibility across multiple brand names (Craftsman, Troy-Bilt, MTD, Yard Man). It’s the “safe bet” for the most common 21″ MTD deck configuration.
Pros and Cons
Pros:
- Very detailed part number cross-references simplify the search
- Fits a huge number of the most common MTD 21″ mowers
- Installation is straightforward if your mower has the standard mulch door setup
- Good value for a direct replacement part
Cons:
- The plastic can be a bit flexible, which some users note differs from older OEM parts
- Does not include any mounting hardware; relies on existing parts
Customer Reviews
Customer Review: “I mowed over a huge rock and destroyed the chute on my Craftsman M140 mower, and this replacement fit perfectly.”
Customer Review: “Fits troy bilt tb110. Uses the metal bar to grab. Read more”
6. 731-07486 Side Discharge Chute for Most 21″ Deck Hand-Pushed Lawn Mowers – Compatible with MTD Troy-Bilt Craftsman
This is another highly compatible 731-07486 replacement aimed at the broad market of MTD 21″ hand-pushed mowers. Its strength lies in its proven fit for even some less-common brands like Remington, as noted by users. It’s a straightforward, no-frills replacement part that gets the core job done: attaching to the mulch door and discharging grass cleanly. For a basic, functional fix, it’s a top contender.
Key Features That Stand Out
✓ Replaces part number 731-07486
✓ Compatible with Craftsman, MTD, Yard Man, and even some Remington models
✓ Designed for most 21″ deck hand-pushed mowers
✓ Hooks under the steel bar of the mulch door for a secure fit
✓ Flexible design accommodates slight variations in deck geometry
Why We Recommend It
We recommend this chute for its “it just works” reputation. Several reviewers mentioned it fit mowers from brands not explicitly listed, showing its adaptable design. It’s a great example of a well-made generic that respects the original engineering. If you’re looking for the most affordable option that still gets positive reviews for fitment, this is an excellent place to start.
Best For
Owners of older or less-common MTD-platform mowers (like some Remington or Yard-Man models) who may struggle to find a listing that mentions their specific brand. It’s also perfect for anyone wanting a simple, low-cost replacement without any extra features.
Pros and Cons
Pros:
- Surprisingly adaptable fit across many 21″ MTD decks
- Very affordable price point
- Installation is quick and uses existing hardware
- Flexible material helps with non-perfect fits
Cons:
- The fit might not be as tight as an OEM part on some mowers
- Plastic feels thinner and less rigid than premium replacements
Customer Reviews
Customer Review: “Just put this on my Remington, model 210 fwd mower, i had a hard time finding any listings for a discharge chute that would fit my brand, model number, lawn mower. This was the only one that mentioned Remington in the list of mowers that it would fit on. It didn’t mention any model numbers for my mower just the name. I took a chance and it fits, it’s not a perfect fit but i think it will work well enough. The mulch door holds it down well and the discharge chute seems to be flexible enough to handle many cuts. The price was good and it should serve its function well, plus it was extremely easy to install, just lift the mulch door, hook under the steel bar of the mulch door and let the tension of the mulch door hold the discharge chute in place.”
Customer Review: “Fit perfectly! Seemed just as quality as the original and was at a good price.”
7. MTD 731-07131 Side Discharge Chute with 987-02516A Hinged Mulch Plug
This is a premium package that includes the 731-07131 side discharge chute along with the 987-02516A hinged mulch plug, plus the necessary pin and spring. It’s a complete solution for Troy-Bilt and MTD owners who want to restore both side discharge and mulching capabilities. The included hardware makes installation a breeze, and the combination ensures your mower is ready for any mowing condition—whether you want to mulch, bag, or side-discharge.
Key Features That Stand Out
✓ Complete kit: Side discharge chute (731-07131) + hinged mulch plug (987-02516A)
✓ Includes mounting pin and spring
✓ Compatible with a wide range of Troy-Bilt models (TB330, TB360, TB220, TB240, TB340, TB370, TB380ES, etc.)
✓ Also fits MTD models ME21550, ME21625 and Craftsman 247377300
✓ OEM-quality parts for a factory-like restoration
Why We Recommend It
This kit is our top recommendation for anyone whose mower uses a hinged mulch plug system. Buying the chute and plug together is more cost-effective and convenient than purchasing separately. The fact that it includes the small but critical pin and spring is a huge plus—these parts are easy to lose and can be a pain to source individually. It’s the most complete and hassle-free solution for full mower functionality.
Best For
Owners of Troy-Bilt TB360, TB370, TB380ES, and other models with the hinged mulch door who have lost or broken both their chute and plug. It’s ideal for anyone performing a full seasonal maintenance refresh on their mower.
Pros and Cons
Pros:
- All-in-one solution; no need to hunt for separate parts
- Includes often-missing small hardware (pin, spring)
- Perfect OEM match for models with hinged mulch plugs
- Restores full 3-in-1 functionality (mulch, bag, discharge)
Cons:
- More expensive than a chute-only purchase
- Overkill if you only need the side discharge chute
Customer Reviews
Customer Review: “This item was just what I needed for my Troy-Bilt TB360 lawn mower. Easy installation.”
Customer Review: “Fit my Murry 21″ push mower perfectly. Arrived quickly and easy to install. Just wish that it came with the one mounting bold because I didnt have the old one.”
8. 731-07486 Side Discharge Chute for 21″ Deck Lawn Mowers – Compatible with MTD Craftsman Columbia Huskee Troy-Bilt Yard-Man
This listing emphasizes compatibility with a wider range of brands under the MTD umbrella, including Columbia and Huskee. It’s another variant of the ubiquitous 731-07486, aimed at users who might not recognize the MTD or Troy-Bilt brand name on their mower. The key takeaway from reviews is that it’s an acceptable, functional replacement for older or well-worn mowers, though some note it may not have the exact same downward angle as the original.
Key Features That Stand Out
✓ Replaces part number 731-07486
✓ Explicitly lists compatibility with Columbia and Huskee brands
✓ Fits many Craftsman, MTD, Yard Man, and Troy-Bilt 21″ models
✓ Hook-and-latch design for the mulch door
✓ Good for reviving older mowers where an exact OEM match is less critical
Why We Recommend It
We recommend this for its inclusion of niche brands like Columbia and Huskee. If you own one of these, finding a compatible chute can be challenging. This listing acknowledges that reality. The honest review from a user noting the discharge angle difference is valuable information—it tells you to expect a very functional, but perhaps not perfectly identical, replacement.
Best For
Owners of older or store-brand MTD mowers (Columbia, Huskee, some Yard-Man) who need a working replacement and are less concerned with an exact geometric match to a 15-year-old OEM part. It’s for the practical user who wants their mower to cut grass again, period.
Pros and Cons
Pros:
- Recognizes compatibility with less-common MTD brands
- Gets the job done for a fraction of the cost of a rare OEM part
- Easy to install on mowers with the standard setup
- Flexible design can accommodate minor variations
Cons:
- Discharge trajectory may be slightly more horizontal than the original
- Build quality is basic; feels thinner and lighter than OEM
- Potential minor fitment issues on some exact model revisions
Customer Reviews
Customer Review: “Fits great and equally as good as original equipment.”
Customer Review: “This worked Ok on my 13 year old Craftsman push mower. The original got run over with the mower so I cant directly compare the original with the generic replacement. It fit on well, but it seems this product does not curve down towards the ground as much as the original. I noticed that the discharge chute is in a more open position vs directing the discharge grass in a more downward trajectory. While mowing I could see that the clippings really fly outward- more so than with the original. It seems a rock or debri would be able to shoot out further from the mower and could be a bit of a hazard. But overall it is an acceptable replacement and Im glad to have found something that would work on this old mower.”
9. 731-07131 Side Discharge Chute for Lawn Mowers – Compatible with Troy-Bilt TB110 TB130 TB200 TB230 TB240
This 731-07131 chute offers another budget-friendly path to restoring side discharge on a wide range of Troy-Bilt and Powersmart/Yard Machine mowers. It’s marketed as an OEM specification replacement for part numbers 731-07131 and 987-02516A. User reviews are very positive, highlighting its easy, tool-free installation and durable feel that some even claim is better than the original. It’s a strong value pick for the most common chute design.
Key Features That Stand Out
✓ Replaces part numbers 731-07131, 731-7131, 987-02516A
✓ Compatible with Troy-Bilt TB110, TB130, TB200, TB230, TB240 and many SC series models
✓ Also fits Powersmart/Yard Machine models
✓ Original specification and model replacement
✓ Tool-free installation; clicks into place
Why We Recommend It
We recommend this for its stellar user feedback regarding quality and fit. Multiple reviewers state it feels more robust than the original OEM part they replaced. For a generic replacement, that’s high praise. It’s also significantly cheaper than dealer-sourced parts. If your mower takes the 731-07131 style chute, this is arguably the best value you can get.
Best For
Anyone with a Troy-Bilt TB-series or SC-series mower needing a 731-07131 chute. It’s especially suited for users who have had bad experiences with flimsy generics and want something that feels substantial and installs seamlessly.
Pros and Cons
Pros:
- Excellent user-reported build quality; feels better than OEM to some
- Extremely easy, tool-free installation
- Very affordable for the quality
- Broad compatibility within the Troy-Bilt 21″ deck family
Cons:
- The plastic, while good, may still be slightly different from a true dealer OEM part
- Some users wish it came with the mounting bolt (though most reuse the old one)
Customer Reviews
Customer Review: “I needed a replacement chute for my Troy-Bilt push mower and this worked out perfectly. The fit was exactly right and it installed on the mower without any issues. Installation was very straightforward and only took a few minutes. Once it was on, it felt secure and worked just like the original chute that came with the mower. The plastic feels durable and comparable to, and honestly better, than the OEM part, so I expect it to hold up well with regular use. Sometimes replacement parts can be hit or miss, but this one matched up well and did exactly what I needed. Overall, this was an easy and reliable replacement. If you need a new chute for your mower, this one fit great and installed quickly.”
Customer Review: “I picked up this side discharge chute (part #731-07131) for my Murray push mower after my original one went missing. The Pros: Compatibility: It clicked right into place without any hassle. It’s nice to know it covers such a wide range of models like the Cub Cadet, Troy-Bilt, and Craftsman units, too. Installation: Took about ten seconds to install. No tools required, and it’s secure enough that I don’t feel like it’s going to rattle off while I’m mowing. Functionality: It does exactly what it’s supposed to do—keeps the grass clipping output clear so the mower doesn’t bog down. The Cons: Build Quality: The plastic definitely feels a little thinner and lighter than the factory-original chute that came with the mower. It feels sturdy enough for regular mowing, but I’m a little curious to see how it holds up if I accidentally bump it against a fence or a stray rock. Overall: If you need a functional replacement that doesn’t break the bank, this is a solid buy. It saved me from having to track down a more expensive “official” part, and it gets the job done just as well. I’m giving it 4 stars—I’d bump it to 5 if the plastic felt a bit beefier, but for the price, I’m satisfied.”
10. Toro 115-8447 Side Discharge Chute
This is the dedicated Toro 115-8447 side discharge chute for 22″ Recycler mowers from 2009-2015. It’s a direct OEM replacement for models in the 20330 series. If you own a Toro Recycler and have lost or broken your chute, this is the exact part you need. It’s known for its sturdy construction and perfect fit, restoring the mower’s ability to discharge clippings cleanly and preventing the deck buildup that the Recycler is infamous for without a chute.
Key Features That Stand Out
✓ Exact Toro OEM replacement part number 115-8447
✓ Fits Toro 22″ Recycler models: 20330, 20331, 20332, 20333, 20334, 20337, 20338, 20339, 20350, 20351, 20352, etc. (2009-2015)
✓ Durable plastic construction built to Toro specifications
✓ Simple, tool-free attachment
✓ Critical for preventing clumping and deck clogs on Recycler mowers
Why We Recommend It
We recommend this purely for its specificity and authenticity. For Toro owners, there’s no guesswork—this is the one and only correct part. It’s not a generic that “might” fit; it’s the actual part. The reviews are unanimous that it’s a perfect, sturdy replacement that solves the problem immediately. Paying a little more for the guaranteed-correct OEM part for a brand like Toro is often worth the peace of mind.
Best For
Exclusive to owners of Toro 22″ Recycler lawn mowers (model series 20330, 20331, etc.) manufactured between 2009 and 2015 who need the exact, official replacement part.
Pros and Cons
Pros:
- Guaranteed perfect OEM fit for specified Toro Recycler models
- High-quality construction identical to the original part
- Solves the specific clogging problem of Toro Recyclers instantly
- Tool-free, instant installation
Cons:
- Only fits the specific Toro 22″ Recycler models listed—zero cross-compatibility
- Generally more expensive than generic MTD 731-xxxxx chutes
- Not suitable for any other brand or deck size
Customer Reviews
Customer Review: “Fit my 22in Toro recycler fwd perfectly and literally takes 2 seconds to attach it. It also made my mower have little to no grass stick vs with no discharge chute. It had a layer so thin that I could see the paint clear and before I was having to scrape and wash my deck clean every single time I mowed with it. It’s a nice and sturdy feeling and should last as long as I have the mower. For the price I couldn’t pass it up and I’m glad I didn’t! 100% would buy again and recommend ! 5/5 stars”
Customer Review: “I was a little nervous ordering this site unseen because I was concerned it would not fit my mower. It is exactly what I needed to replace the missing item on my mower, ease of installation and the design is so simple. Great quality. Will definitely purchase again if I need a new one”
Complete Buying Guide for Lawn Mower Side Discharge Chute
Essential Factors We Consider
When choosing a side discharge chute, compatibility is the absolute first and most critical factor. You must identify your mower’s exact make, model, and deck size. The easiest way is to find the part number on your old, broken chute—it’s usually molded into the plastic. If it’s gone, consult your owner’s manual or a parts diagram online. Part numbers like 731-07131 and 731-07486 are the most common for MTD-made mowers (Troy-Bilt, Craftsman, etc.), while Toro has its own like 115-8447. Always cross-reference the seller’s compatibility list with your specific model number, not just the brand name.
Second, consider the build quality. Most chutes are made from durable plastic. Look for mentions of UV-resistance if you live in a sunny climate, as sun can make plastic brittle over time. Thickness and flexibility matter too—a chute that’s too rigid may crack on impact, while one that’s too flimsy may not stay in place. Reviews are invaluable here for real-world durability insights.
Lastly, think about the hardware. Does the listing include the hinge pin, spring, or any clips? These small parts are often lost during removal and can be a hassle to source separately. A kit that includes them (like product #7) offers better value and convenience.
Budget Planning
You can expect to spend anywhere from $15 to $40 for a quality side discharge chute. The most common MTD parts (731-07486, 731-07131) typically fall in the $18-$28 range. Generic versions at the very low end ($12-$15) may be thinner and fit less precisely. Official OEM parts from a dealer can cost $40-$60. For most homeowners, a mid-priced, highly-rated Amazon part (like our Best Budget picks) offers the optimal balance of cost, fit, and durability. If you have a premium brand like Toro or Honda, budgeting for the official OEM part is wise to ensure perfect fitment.
Final Thoughts
A broken side discharge chute is more than a minor annoyance—it directly impacts your mower’s performance and the health of your lawn. Clippings back up into the deck, causing clogs, bogging down the engine, and resulting in an uneven, ragged cut. Replacing it is a simple DIY fix that takes under five minutes but delivers immediate, noticeable results. Don’t settle for a mower that struggles with every pass. Use this guide to find the exact chute for your machine, and you’ll have your mower cutting cleanly and efficiently again in no time. Remember, when in doubt, find the part number on your old chute—it’s the single most reliable way to shop.
Frequently Asked Questions
Q: How do I know which side discharge chute is right for my lawn mower?
A: The best method is to locate the part number printed on your existing chute. It’s usually on the underside or side. If it’s missing, find your mower’s exact model number (often on a sticker under the seat or near the engine) and search for “[Your Model Number] side discharge chute” or consult an online parts lookup for your brand (MTD, Toro, Honda, etc.). Our comparison table lists specific compatible models for each product.
Q: Can I use a side discharge chute without the mulch plug?
A: Yes, absolutely. The side discharge chute and the mulch plug are separate accessories. Many mowers use a hinged mulch plug that you open for mulching and close when you want to side discharge. If your chute attaches separately (common on older models), you can remove it entirely for mulching or bagging. If your mower has a hinged mulch door (like many Troy-Bilts), the chute usually hooks onto that door. You can still remove the chute while leaving the plug in place if you want to just mulch.
Q: Is a generic side discharge chute as good as an OEM part?
A: In most cases, yes. For common MTD platforms (731-07131, 731-07486), the aftermarket parts are manufactured to the same specifications and are often made by the same OEM suppliers. User reviews consistently show that reputable generic chutes fit perfectly and last just as long. For brands like Toro or Honda, where designs are more proprietary, sticking with the official OEM part is safer to avoid fitment issues. Always check reviews for specific feedback on quality and fit.
Q: My mower deck is clogging even with the chute on. What could be wrong?
A: First, ensure the chute is fully seated and the latch/hook is engaged. A partially attached chute won’t work. Second, check for damage—cracks or deformations can restrict flow. Third, your grass may simply be too wet or too long. Side discharge works best with dry, regularly mowed grass. If you frequently cut tall or wet grass, consider a chute blocker to force clippings back into the deck for finer mulching. Finally, a dull blade can also cause clumping as it shreds grass poorly.
Q: How long should a replacement side discharge chute last?
A: With normal use, a good quality chute should last 3-5 years or more. The main threats are UV degradation (sun makes plastic brittle), impact damage from hitting rocks or curbs, and general stress from clipping ejection. Storing the mower in a garage or shed extends the chute’s life. If you frequently mow over rough terrain with many obstacles, be prepared for more frequent replacements. Our top picks use UV-resistant plastics designed for longevity.
Conclusion
A functioning side discharge chute is a small part that makes a massive difference in your mowing experience. It’s the difference between a smooth, efficient cut and a constant battle with clogs and engine strain. Our top pick, the MTD 731-07131, wins for its unmatched compatibility and reliable OEM-quality fit. For specific Troy-Bilt/MTD 21″ self-propelled models, the 731-07486 (product #2) is the perfect direct replacement. And for the best value across hundreds of models, you can’t go wrong with the MTD Replacement Part (product #3).
If you have a Toro Recycler, don’t gamble—get the exact Toro 115-8447. Take two minutes to check your old chute for the part number, match it to our list, and get your mower back to peak performance. Your lawn (and your ears) will thank you for it. Click the “Check Price on Amazon” buttons above to see the current deals and get your new chute on the way!
