Direct answer: A lawn mower grass guard, specifically a side discharge chute, is essential for directing clippings away from the mower and preventing clogging. This article highlights five compatible 21″ side discharge chutes to fit many Craftsman, Huskee, Troy-Bilt, MTD, Yard-Man, Columbia, and similar hand-pushed mowers. Each option targets different user needs—ease of installation, compatibility breadth, and budget considerations—so you can choose the best fit for your mower model and lawn routine.
The buyer who wants to replace a worn discharge chute or upgrade to a more durable design will find these picks helpful. If you regularly tackle tall grasses or have a yard with tight spaces, a robust chute can minimize maintenance time. If you prefer a lightweight, simple-to-install part, one option may suit you better even in a tight budget. The table below provides a quick glance at the five selected products to help you compare at a glance.
| Product | Brand | Best For |
|---|---|---|
| Lawn Mower 731-07486 Side Discharge Chute | DECKMAN | Broad compatibility with 11A/12A-series Yard-Man, MTD, and Craftsman mowers |
| LEAFLEX 731-07203 Lawn Mower Trail Shield | LEAFLEX | Protection and shield for trailing edge; good for multi-model compatibility |
| 731-07131 Lawn Mower Side Discharge Chute | DECKMAN | Wide model compatibility; great for many 12A/11A-series Craftsman and MTD mowers |
| Fennoral 731-07486 Side Discharge Chute | Fennoral | Extensive Yard Man/MTD/Montana-era compatibility; reliable replacement |
| MDANNO 731-07486 Side Discharge Chute | MDANNO | Versatile compatibility with a broad range of Craftsman and Yard Man models |
Lawn Mower 731-07486 Side Discharge Chute for 21″ Deck
Best for broad compatibility with Craftsman, Columbia, Huskee, Troy-Bilt, and Yard-Man models within the 11A/12A series. This DECKMAN discharge chute is designed as a replacement part for 731-07486. Note that screws are not included, so reuse screws from the old chute if applicable. The hypotenuse length is 11 inches with a height of 3.4 inches, which helps determine fit for standard 21″ decks. Use this option if you seek a straightforward, widely compatible replacement that suits many older 21″ mowers.
Who it’s best for: Homeowners with a 21″ deck mower needing a quick, reliable replacement for a failed side discharge chute. Why selected: It covers a wide range of popular models, reducing the need to hunt for a specific matching part number. Limitation: Screws are not included, so verify you can reuse existing fasteners or source screws separately.
LEAFLEX 731-07203 Trail Shield for MTD and Craftsman
Best for added protection at the trailing edge of the mower, the LEAFLEX Trail Shield works with MTD, Columbia, Craftsman, Huskee, Troy Bilt, and Cub Cadet lines, among others. It lists compatibility with a variety of 11A-A44E065 and 12A-series models from 2011 and earlier, including Yard Man and related brands. This shield helps prevent debris from escaping toward the operator and nearby landscaping, which can be advantageous in tight yards or near landscaped beds.
Who it’s best for: Gardeners who want a protective shield that minimizes grass clippings escaping the deck while maintaining wide compatibility. Why selected: The shield design provides an effective barrier that pairs with many brands, reducing the risk of clogs and debris scattering. Caution: The product includes a shield only; verify that mounting hardware is compatible with your mower’s existing setup.
731-07131 Lawn Mower Side Discharge Chute
Best for extensive model coverage within MTD, Cub Cad, Craftsman, and Murray lineups, with TB110, TB130, TB200, TB230, TB240 and related models. It replaces 731-7131 and measures around 11 inches in length, 7.25 inches in width, and 3.4 inches in height. This chute is a solid choice for users who need a reliable, widely compatible solution for older 21″ hand-pushed mowers.
Who it’s best for: Builders who own a large catalog of MTD/Craftsman/MTD-based mowers and want a single replacement option. Why selected: The size and compatibility match many common 12A/11A series mowers, simplifying replacement. Caution: Check specific model compatibility, as some 11A/12A series variants may require slight fit adjustments.
Fennoral 731-07486 Side Discharge Chute
The Fennoral side discharge chute is designed for 21″ deck mowers and works with Yard Man and related brands, alongside Columbia, Craftsman, Huskee, and Troy-Bilt models. It supports a broad list of compatible Yard Man model numbers from 2003 to 2011 and various 11A/12A series. This option can be a robust replacement when multiple model numbers are involved in your shopping list.
Who it’s best for: Mower owners who operate older Yard Man or MTD variants and require a compatible replacement part across multiple model numbers. Why selected: Its broad compatibility reduces the need to source multiple chutes. Caution: The compatibility list is long; confirm your exact model matches before purchasing.
MDANNO 731-07486 Side Discharge Chute
Best for a broad compatibility range with Craftsman models and Yard Man lines, including 11A-436T763 (2003) and 12A-A23P799 (2008), among many others. The MDANNO chute replaces 731-07486 and supports numerous 12A and 11A variants listed in its features. This makes it a strong choice for customers who own multiple Craftsman or Yard Man units and want a single replacement option.
Who it’s best for: Homeowners with a catalog of legacy Craftsman or Yard Man mowers that share 21″ decks. Why selected: The extensive model list reduces future parts hunting. Caution: The length and profile should be checked against your mower deck to ensure a precise fit.
Buying Guide: Key Considerations for Choosing a Lawn Mower Grass Guard
- Brand and model compatibility: Confirm your mower’s model number and deck size. Most 21″ hand-pushed mowers use a 21″ deck with similar discharge chute mounting points, but exact fit can vary by series (11A, 12A, etc.).
- Material and durability: Look for sturdy plastics or metal components with reinforced edges to resist impact and weathering. A longer-lasting chute reduces replacement frequency in high-use yards.
- Installation requirements: Some chutes require screws or hardware from the old part. If not included, plan for compatible fasteners or reuse existing hardware safely.
- Clipping management: Consider whether you need a full shield or a simple discharge chute. Shields can help keep debris out of landscaped areas, while the chute primarily redirects clippings away from the operator.
- Fit vs. universal compatibility: Universal or broad-compatibility parts save time if you own multiple mower brands, but ensure a secure fit to avoid loosening during operation.
- Maintenance impact: A well-fitted chute reduces clogs, which lowers maintenance time and improves mowing consistency on tall or damp grass.
- Return and warranty policies: If purchasing online, verify return windows. Replacement parts often have limited or no warranty coverage; ensure you can return if it doesn’t fit.
FAQ: Quick Answers for Buyers
- What is a lawn mower grass guard? A grass guard, or side discharge chute, directs grass clippings away from the mower and can reduce clogging and debris blowback during mowing.
- How do I know if a chute fits my mower? Check your mower’s model number, deck size, and the part number of the existing chute. Compare to the listed compatible models in the product description.
- Do these chutes come with screws? Some listings exclude screws; reuse from the old chute or source compatible screws separately. Verify mounting hardware requirements before purchase.
- Can I replace a chute on any 21″ mower? Not always. While many 21″ hand-pushed mowers share similar mounting points, exact compatibility varies by year, brand, and model series.
- What is the benefit of a shield-style trail guard? Shields protect the user and nearby plants from stray clippings and reduce debris discharge that can cause staining or damage to nearby objects.
- Are these parts durable for frequent use? Replacement chutes designed for 21″ decks are built to withstand regular mowing, but durability depends on material and exposure to elements. Regular inspection helps prevent failure during mowing season.