Answering the common buyer question: which mulch kit should you choose to convert your lawn mower into a mulching mower? The best options below are designed for 42″ to 46″ decks and suit popular brands like Cub Cadet, MTD, and Husqvarna. These kits help return nutrients to your lawn while reducing clippings cleanup. Each product section explains who it’s best for, why it’s chosen, and practical limitations to consider.
| Product | Deck Compatibility | Best For | Key Benefit |
|---|---|---|---|
| Cub Cadet 19A30046100 | 42″ Deck | XT1-LT42E owners seeking OEM mulching | Includes two Xtreme mulching blades, molded plug, mounting hardware |
| MTD Genuine Parts 19A70041OEM | 42″ Decks | Most Craftsman/RZT models with 42″ decks | OEM part, broad compatibility |
| Cub Cadet 19A30047100 Xtreme Mulching Kit | 46″ Decks | XT1-LT46 / XT2-LX46 users | Factory parts, two blades, plug, hardware |
| KUAFU Mulching Cover 42″/46″ | 42″ & 46″ Decks | Budget-conscious, multiple brands | High-quality PP cover, broad fit, reduces clippings handling |
| Husqvarna 46-Inch Mulch Kit | 46″ Decks | Husqvarna tractors or ZTRs | Transforms deck into mulching deck, returns nutrients |
Cub Cadet 19A30046100 Xtreme Mulching Kit

Brand: Cub Cadet
Product summary: OEM part number 19A30046100 for Cub Cadet XT1-LT42E Lithium Ion mowers. Includes two Xtreme mulching blades, a molded plug, mounting hardware, and instructions. Best for Cub Cadet XT1-LT42E owners seeking an authentic mulching solution that aligns with factory design.
Who it’s best for: Owners who want OEM compatibility and a ready-to-install kit for 42″ decks on Cub Cadet XT1-LT42E and similar models. Why selected: It integrates with the mower’s existing deck geometry and blades for efficient mulching.
Caution / limitation: Designed for specific Cub Cadet 42″ decks; verify your exact model before purchase to avoid fit issues.
MTD Genuine Parts 19A70041OEM Mulching Kit

Brand: MTD Genuine Parts
Product summary: OEM mulching kit compatible with 42″ MTD and many Craftsman/RZT mowers. Designed for 42″ decks and labeled as original equipment parts, with blades and mounting hardware included.
Who it’s best for: Mower owners seeking OEM parts for 42″ deck Mulching, particularly for MTD, Craftsman, and RZT lines. Why selected: OEM compatibility promises reliable fit and field maintenance support.
Caution / limitation: Not guaranteed to fit all 42″ decks; verify your exact mower model and parts list before purchasing.
Cub Cadet 19A30047100 Xtreme Mulching Kit

Brand: Cub Cadet
Product summary: OEM factory parts for 46″ Enduro XT1/XT2 and related Kub CADET models. Includes mulching blades, plug, mounting hardware, and instructions for 46″ decks.
Who it’s best for: XT1-LT46 / XT2-LX46 owners who want reliable factory-designed mulching components. Why selected: Factory parts align with the deck geometry for consistent mulch cutting.
Caution / limitation: Only listed as compatible with certain Cub Cadet 46″ configurations; check model compatibility before ordering.
KUAFU Mulching Cover For 42″ & 46″ Decks

Brand: KUAFU
Product summary: Mulching cover compatible with Cub Cadet RZT-42, XT1-LT42, XT2-LX42, and similar 42″ and 46″ decks. Replacement for several part numbers including 631-05195A and 19A30046100 families. Material is PP, designed for durability.
Who it’s best for: Budget-conscious buyers seeking a universal mulching cover to fit multiple brands. Why selected: Broad compatibility and replacement-style design make it versatile across brands.
Caution / limitation: Some models may require additional hardware or adapters for a proper seal; verify deck compatibility and mounting clearances.
Husqvarna 46-Inch Mulch Kit

Brand: Husqvarna
Product summary: Mulch kit for 46″ decks on Husqvarna tractors and Z-Turn mowers. Includes mulch plate, blades, and mounting hardware. Helps return nutrients to the lawn by shredding clippings on the go.
Who it’s best for: Husqvarna users seeking an official-style mulching deck upgrade for 46″ decks. Why selected: Specifically designed to work with Husqvarna deck geometry, blades, and mounting patterns.
Caution / limitation: Not compatible with all deck types; designed for Husqvarna 46″ stamped decks and may not fit FAB or other deck configurations.
Buying Guide: Mulching Kit Factors
- Deck compatibility: Confirm 42″ or 46″ deck, and whether the kit matches XT1/XT2, RZT, ZTR, or Cub Cadet Husqvarna family designations.
- OEM vs aftermarket: OEM kits typically align with original deck geometry; aftermarket options may offer broader compatibility but require verification.
- Included components: Look for blades, mulch plate or plug, mounting hardware, and installation instructions. Some kits include multiple blades for better cut quality.
- Material and durability: Choose covers and plates made from durable plastics or metal components suitable for your climate and mowing frequency.
- Installation considerations: Some kits are straightforward plug-and-play, while others may require customizing mounting hardware or aligning blade geometry.
- Maintenance implications: Mulching kits reduce waste but may require periodic blade sharpening and deck cleaning to maintain performance.
FAQ
- Do mulching kits fit all mowers with 42″ or 46″ decks?
– No, fit depends on the exact model and deck type. Always verify the mower model and deck compatibility before purchasing. - What is the main benefit of a mulching kit?
– It shreds grass clippings and returns nutrients to the lawn, reducing disposal and promoting soil health. - Are OEM mulching kits better than third-party options?
– OEM kits generally guarantee compatibility with factory deck designs, but high-quality aftermarket options can offer broader fitment if carefully matched. - Can a single mulching kit work on multiple brands?
– Some universal or cross-brand covers exist, but compatibility is not guaranteed. Check the part numbers and deck specifications for each mower. - What maintenance does a mulching kit require?
– Regular blade inspection, sharpening, and cleaning of the mulching area help maintain cut quality and prevent clogging. - Is a mulch kit the same as a rear bagger or side-discharge kit?
– No. Mulching kits are designed to shred and recirculate clippings, whereas baggers collect clippings, and side-discharge kits expel them from the deck.