Answer: If you own a Cub Cadet, MTD, Craftsman, or similar 42″ to 46″ deck mower, a mulch plug kit can convert mowing into effective mulching by returning clippings to the lawn. This guide compares five compatible options to help you choose the right kit for 42″ decks and 46″ decks, focusing on fit, materials, and installation needs. Best for budget-conscious buyers, mid-range users, and those seeking higher durability or easier installation.
Summary at a glance: the following table highlights the five top picks, their key fitment notes, and what each is best for. Use this to quickly compare compatibility and benefits before reading detailed sections.
| Product | Brand | Best For | Notes |
|---|---|---|---|
| FancyTark 631-05195 / 631-05195A | FancyTark | General mulching for 2012+ MT-/Cub Cadet-style decks | Wide compatibility list; verify model |
| KUAFU Mulching Cover | KUAFU | PP-made, durable cover for 42″ & 46″ decks | High abrasion resistance; 42″ & 46″ |
| Foifatt 631-05195A Mulch Plug | Foifatt | Wide MTD/Cub Cadet compatibility | Fits 2012 and after; multiple 19A/631-05195 variants |
| DECKMAN 631-05195A Kit | DECKMAN | Comprehensive mulch plug kit with hardware | Includes installation hardware |
| EGO Power+ 42″ Mulch Plug | EGO Power+ | Electric 42″ mower mulching | Specific to EGO ZT4204L |
FancyTark 631-05195 / 631-05195A Mulch Plug Kit

Best for: Homeowners with MTD/Cub Cadet-style decks that require straightforward replacement parts. Why selected: this kit lists compatibility with multiple 2012+ models and common part numbers, making it a convenient substitute for 631-05195A and related plugs. The kit’s broad model references help ensure a fit for 42″ and 46″ decks in several lineups.
Limitations: Not every 42″ or 46″ deck is guaranteed to fit; confirm compatibility with your exact model before purchase. The listing notes that some 42″ and 46″ decks may not be compatible, so model verification is essential.
KUAFU Mulching Cover for 42″/46″ Decks

Best for: Buyers seeking a durable, impact-resistant PP mulching cover. Why selected: KUAFU emphasizes high-quality PP material with toughness and abrasion resistance, making it a good choice for frequent cutting and varying yard conditions. It’s positioned as a direct replacement for 42″ and 46″ decks and works with several brands.
Limitations: The product description focuses on material strengths rather than installation specifics; users may need to verify hardware compatibility with their mower’s deck.
Foifatt 631-05195A Mulch Plug Replacement

Best for: Budget-conscious shoppers needing a wide compatibility range. Why selected: Foifatt lists compatibility with 631-05195A and multiple 19A300-series models across 2012+ years, including various LTX and RZT line mowers. The kit appears to cover common Cub Cadet, MTD, and Craftsman configurations while offering a cost-effective option.
Limitations: Like other replacement plugs, verify exact model fit before purchase, as listed models span several generations and sub-models.
DECKMAN 631-05195A Mulch Plug Kit

Best for: Mowers requiring a complete mulch plug kit with installation hardware. Why selected: DECKMAN markets a full kit that includes installation hardware, which can simplify the upgrade process for 42″ and 46″ decks. The included part numbers align with 631-05195A and related plugs, aiding model matching for 2012 and after.
Limitations: The listing emphasizes hardware inclusion; ensure all needed pieces are present for your specific deck model to avoid missing components during installation.
EGO Power+ 42″ Mulch Plug

Best for: Electric zero-turn mowers in the EGO Power+ line with a 42″ deck. Why selected: This mulch plug is designed specifically for the EGO ZT4204L, aligning with the 42″ electric mower category and providing a clean mulch pathway for clippings.
Limitations: This option is limited to EGO 42″ electric models and may not fit gas-powered Cub Cadet or MTD machines with the same deck size.
Buying Guide: Key Purchase Considerations
- Compatibility: Verify the exact model number or deck configuration (42″ or 46″) before purchasing. Some listings show broad compatibility that may not cover your specific mower.
- Material and construction: PP or high-grade plastics offer durability. For frequent mowing, choose a cover or plug with good abrasion resistance and weather tolerance.
- Hardware included: Some kits include installation hardware; others require separate purchases. If you’re new to mower modifications, a kit with hardware simplifies the process.
- Brand and model overlap: Replacement parts often suit multiple brands (MTD, Cub Cadet, Craftsman, Troy-Bilt). Double-check the model list to avoid mismatches.
- Installation complexity: Some plugs are straightforward replacements, while others require minor deck modifications. Consider your DIY comfort level and tool access.
- Warranty and returns: Replacement parts may vary in warranty coverage. Check return policies if the part doesn’t fit your mower.
- Maintenance impact: Mulch plugs simplify mowing by returning clippings to the lawn, but ensure clippings won’t hinder mower airflow or deck performance in your yard conditions.
Frequently Asked Questions
- What is a mulch plug and why do I need one?
- Will a mulch plug fit my 42″ Cub Cadet or MTD deck?
- Is installation difficult for beginners?
- Do I need a mulch cover or a plug kit?
- Are there any 42″ electric mower mulch plugs?
- Can I use any mulch plug on any deck size?
A mulch plug blocks the discharge chute to redirect clippings back into the cutting path, enabling mulching and reducing cleanup.
Model compatibility varies. Always verify the exact model numbers (for example 631-05195A, 19A30046100, etc.) listed in the product description.
Most mulch plug kits require basic tools and minor deck access. Kits with included hardware make it easier for first-time installers.
A mulch plug is used to block the discharge, while a mulch cover can add a broader mulching solution. Some products combine both functions; select based on your mower model and preferred mulching approach.
Yes, some options are designed specifically for electric mowers like EGO Power+ 42″ decks, offering compatibility with that platform.
No. Deck size, model number, and mower brand determine compatibility. Always confirm exact fit before purchasing.