8TEN Belt PTO Clutch Kit for Cub Cadet Troy Bilt White Outdoor RZT50 ZT50 ZT5000 Mustang XP 917-04183 954-04044

What It Is

The 8TEN Belt PTO Clutch Kit is an aftermarket replacement assembly for the electric PTO clutch on select Cub Cadet, Troy-Bilt, and White Outdoor zero-turn mowers. It engages and disengages the mower deck blades via the belt drive system.

Fitment & Compatibility

Before buying, verify your mower model and deck size. This kit fits Cub Cadet RZT50, ZT50, ZT5000, and Mustang XP series, plus Troy-Bilt and White Outdoor equivalents (e.g., 50-inch deck models). Cross-reference your OEM part number: it replaces 917-04183 and 954-04044. Measure the existing clutch hub diameter (typically 1 inch) and bolt pattern (usually 4-bolt, 3-inch spacing). Check that your mower uses a 12V electric PTO system—this kit is not for manual or cable-actuated decks. If your deck has a different spindle or belt routing, this may not fit.

Key Things to Know

• Quality vs OEM: 8TEN is a budget-friendly aftermarket brand. Expect similar performance to OEM but may have slightly shorter lifespan under heavy use. Inspect the bearing and coil for smooth operation before installation.
• Installation Difficulty: Moderate. Requires removing the mower deck, disconnecting the battery, and unbolting the old clutch (usually 3-4 bolts). You’ll need basic hand tools (socket set, torque wrench). Allow 1-2 hours.
• Common Gotchas: Ensure the clutch air gap is set to 0.010–0.015 inches using the included feeler gauge. Overtightening bolts can warp the clutch plate. Also, check that the belt is properly tensioned after install—too loose causes slippage, too tight wears bearings.
• Warranty: 8TEN typically offers a 1-year limited warranty. Keep your receipt and packaging.

Should You Buy It

This is a solid choice for DIY owners of compatible Cub Cadet or Troy-Bilt zero-turns who want a cost-effective fix for a worn PTO clutch. If you mow commercially or need maximum durability, consider OEM. For residential use, the 8TEN kit delivers reliable engagement at a fraction of the price.