CUB CADET 490-110-0137 Xtreme Blade Set RZT EFI XT2 XT1 SX42 LX42 LT42 MTR-42-EC 942-0656 942-04312A 942-04312

What It Is

This is a set of three OEM-style mulching blades for Cub Cadet 42-inch cutting decks, designed for use on select RZT, XT1, XT2, SX42, LX42, LT42, and MTR-42-EC zero-turn and lawn tractors. They replace OEM part numbers 942-0656, 942-04312A, and 942-04312.

Fitment & Compatibility

Before buying, confirm your deck measures exactly 42 inches across (blade tip to tip). These blades fit Cub Cadet models listed above, but also cross-reference with MTD, Troy-Bilt, and some Huskee 42-inch decks using the same spindle pattern. Measure your existing blade length (should be ~21 inches), center hole diameter (1 inch), and ensure the drive pin holes align (typically two 0.25-inch holes spaced 2.5 inches apart). Do not assume fitment based solely on model name—verify your deck serial number or measure your current blade.

Key Things to Know

• Quality: OEM-grade steel with a heat-treated edge; holds an edge longer than cheap stamped blades but will dull faster on sandy or rocky soil.
• Installation: Easy if you have a socket wrench and a block of wood to jam the blade. Torque the center bolt to 70–90 ft-lbs—do not overtighten or you risk stripping the spindle.
• Mulching vs. bagging: These are mulching blades with a curved, angled design. They chop clippings finer than standard blades but may not throw grass as far into a bagger.
• Common gotcha: The 490-110-0137 set includes three blades, but some 42-inch decks use two blades—check your deck’s spindle count before ordering.

Should You Buy It

If you own a 42-inch Cub Cadet tractor (RZT, XT1/XT2, SX42, LX42, LT42, or MTR-42-EC) and want a direct OEM replacement for mulching or fine clipping, this set is a solid choice. It’s priced fairly for OEM quality, but if you mainly bag or side-discharge on large lawns, a standard lift blade might give better performance for less money.