42" Mower Deck Rebuild Kit Fit for Cub Ca det XT1-LT42 RZT-L42 XT2-LX42KH T8000, 2 Spindle 918-06976a 918-06976, 2 Blade 942-04038 742-04312, 2 Idler GY22082

What It Is

This is a comprehensive rebuild kit for 42-inch Cub Cadet mower decks, containing two spindle assemblies, two blades, and an idler pulley. It’s designed for restoring cutting performance on residential and light-commercial models like the XT1, XT2, RZT, and T8000 series.

Fitment & Compatibility

• Deck size: Only fits 42-inch decks. Measure your deck width at the widest point—this kit won’t work on 46" or 50" decks.
• Models: Confirmed fit for Cub Cadet XT1-LT42, XT2-LX42KH, RZT-L42, and T8000. Also fits some Craftsman and MTD 42" decks with the same spindle pattern—check your model number.
• OEM cross-reference: Spindles replace OEM 918-06976A / 918-06976. Blades replace 942-04038 / 742-04312 (18.5" length, 1" center hole, 0.25" thickness). Idler pulley replaces GY22082 (3.5" diameter, 5/8" bore).
• Before buying: Verify your current spindle bolt pattern (center-to-center on mounting holes) and blade length. Remove one blade and measure it—if it’s not 18.5", this kit won’t fit.

Key Things to Know

• Quality: Aftermarket parts at a budget price. Spindles are sealed bearings (no grease fittings) and blades are standard carbon steel—adequate for homeowner use but not heavy commercial duty.
• Installation difficulty: Moderate. Requires removing the deck, unbolting old spindles, and transferring the pulley if your old one is different. Basic hand tools and a torque wrench (spindle bolts at 30-40 ft-lbs) needed.
• Gotchas: The idler pulley may have a different offset than your original—check belt alignment after install. Spindle bolts are often rusted; PB Blaster and an impact wrench help. The kit does not include deck belt or hardware (lock washers, bolts).
• Blade orientation: Ensure the blades’ lift wings point up toward the deck. Installing upside down causes poor cut and vibration.

Should You Buy It

If you own a 42" Cub Cadet and your spindles are noisy or wobbling, or your blades are dull, this kit is a cost-effective fix. It’s ideal for DIY homeowners who want to restore a tired deck without paying OEM prices. Avoid it if you need commercial durability or a perfect OEM match—buy genuine Cub Cadet parts instead.