42" Mulching Blades Replacement 2 Pack - Compatible with Cub Cadet XT1 XT2 LT42 LTX1040 RZT-L42, MTD, Troy Bilt 942-04308 942-04308-X 742-0616 942-04126, Fits 42-Inch Deck Lawn Mowers (942-04308-X)

What It Is

This is a 2-pack of 42-inch mulching blades designed to replace OEM blades on select Cub Cadet, MTD, and Troy-Bilt lawn tractors with 42-inch cutting decks. They’re meant for mulching grass clippings into fine particles that decompose quickly, reducing bagging needs.

Fitment & Compatibility

Before buying, confirm your deck measures exactly 42 inches from blade tip to blade tip. These blades are direct replacements for OEM part numbers 942-04308, 942-04308-X, 742-0616, and 942-04126. They fit specific models: Cub Cadet XT1, XT2, LT42, LTX1040, and RZT-L42, plus MTD and Troy-Bilt tractors sharing the same spindle pattern. Measure your existing blade length, center hole diameter (typically 1-inch), and thickness (usually 0.25 inches) to ensure match. If your mower uses a different OEM number or a 46-inch deck, these won’t work.

Key Things to Buy

• Quality: Made from heat-treated steel, these blades are durable for residential use but may show edge wear faster than premium OEM blades in heavy or rocky conditions.
• Installation: Simple DIY job—requires a socket wrench and blade removal tool (or block of wood to prevent spinning). Always disconnect spark plug and wear gloves.
• Common Gotchas: Mulching blades have a more curved profile than standard blades; they may reduce airflow for bagging if you switch back. Also, check blade lift height—these are designed for low-lift mulching, not high-lift discharge.
• Balance: After installation, spin-test the blade to ensure it’s balanced; an unbalanced blade causes vibration and deck damage.

Should You Buy It

If you own one of the listed Cub Cadet, MTD, or Troy-Bilt models with a 42-inch deck and want affordable mulching blades for routine mowing, this 2-pack is a solid value at $34.38. It’s best for homeowners who prioritize fine mulching over bagging and don’t need premium steel for commercial use. For heavy-duty or rocky terrain, consider OEM or thicker-gauge alternatives.