8TEN Mower Spindle for MTD Cub Cadet 42 inch Deck XT1-LT42 XT2-LX42 KH KW CYT4220 618-06976 918-06976 2 Pack

What It Is

This 8TEN mower spindle assembly replaces the OEM spindle on MTD and Cub Cadet 42-inch decks used on XT1-LT42, XT2-LX42, KH, KW, and CYT4220 models. It drives the blade directly and is sold as a 2-pack for replacing both spindles at once.

Fitment & Compatibility

Before buying, verify your mower’s model number and deck size. This spindle fits 42-inch stamped steel decks on Cub Cadet XT1 and XT2 series, plus select MTD and Troy-Bilt models. Cross-reference your OEM part number: 618-06976 or 918-06976. The spindle uses a 5/8-inch shaft with a 1-inch blade bolt hole and has a 3-bolt mounting pattern (holes spaced 2.75 inches center-to-center). Measure your existing spindle housing to confirm it matches these dimensions. Not compatible with fabricated or fabricated-style decks, or models with different shaft diameters.

Key Things to Know

• Quality: 8TEN is a solid aftermarket option—metal housing and sealed bearings. Expect similar lifespan to OEM, but not identical. Some users report slightly looser tolerances than factory.
• Installation: Moderate difficulty. Requires removing the blade, pulley, and old spindle. You’ll need a socket set, torque wrench, and possibly a puller for stuck pulleys. No special tools beyond that.
• Common gotcha: The spindle comes with a pre-installed grease fitting. Grease it before first use and every 25 hours to extend bearing life. Also, check that your deck’s pulley aligns with the new spindle’s shaft keyway—some aftermarket spindles have a slightly different keyway depth.
• Tip: Replace both spindles at once to avoid uneven wear and vibration. Keep the old pulleys and blades if they’re in good shape—they’re reusable.

Should You Buy It

If you own a Cub Cadet XT1 or XT2 with a 42-inch stamped deck and need a reliable, affordable replacement for both spindles, this 8TEN 2-pack is a smart buy. It’s cheaper than OEM, has good reviews, and works well for DIY maintenance. Avoid if you have a different deck size or want exact OEM tolerances.