OCPTY Electric PTO Clutch 717-04376 for Cub Cadet, MTD & Troy-Bilt — 1" Bore, CCW, 80 lb Torque

OCPTY Electric PTO Clutch 717-04376 is a direct-replacement electric power-take-off clutch built to engage mower blades electrically for compatible Cub Cadet, MTD, Troy-Bilt and related zero-turn models.

This heavy-duty replacement PTO clutch is designed to match the original equipment fit and function for several Colt and Mustang zero-turn models and other outdoor power equipment. It combines an electric coil, pulley and brake into a compact single unit so you can switch blade engagement on and off without manually manipulating linkages. The unit ships with OEM cross-references to help confirm fitment and includes torque and pulley dimensions used by technicians and do-it-yourselfers to verify compatibility.

Which machines will this clutch fit?

The OCPTY 717-04376 clutch is manufactured to replace specific OEM part numbers and fits a range of zero-turn mowers and tractors. Check your deck and model year to confirm fit before ordering.

• Compatible models: Cub Cadet RZT-42, RZT-S42 (2012 models).
• Also fits MTD, Bolens, Huskee, White Outdoor Colt XP and Mustang Colt RZT series.
• OEM cross-reference: 717-04376 / 717-04376A / 917-04376 / 917-04376A and Xtreme X0399 / X0399-K.

What are the key specifications I should check?

Confirming physical and performance specs prevents ordering the wrong clutch. Measure the crankshaft bore, pulley diameter, rotation direction and intended torque rating against your existing unit.

• Crankshaft bore: 1" (one inch).
• Pulley outer diameter (OD): 5.923".
• Rotation: counterclockwise (CCW) when viewed from front.
• Torque rating: 80 lbs (specified engagement torque).

How does installation and operation differ from mechanical linkages?

This electric PTO clutch simplifies engagement by using an electrical switch instead of a manual linkage or belt idler. The combined clutch-and-brake single-piece design reduces adjustments and occupies less space under the deck.

• One-piece assembly that contains clutch and brake components for compact mounting.
• Pre-set design minimizes or eliminates on-site adjustments.
• Engage blades with a dash switch to reduce operator fatigue compared with manual linkages.

What should I watch for before buying?

Because PTO clutches are precision-fit parts, always compare the replacement to the original part number and physical measurements. Incorrect selection can cause improper belt alignment, slipping, or premature wear.

• Verify the OEM number printed on your mower and match it to 717-04376 series or X0399 series as applicable.
• Confirm crankshaft bore, pulley OD, rotation direction and torque match your existing clutch.
• Inspect wiring and mounting points for compatibility with your machine’s harness and bracket.

Who is this for: This OCPTY clutch is ideal for owners and technicians who maintain Cub Cadet RZT series or similarly equipped MTD, Bolens, Huskee, White Outdoor and Troy-Bilt zero-turn machines and want a direct-fit electric PTO replacement. It suits DIYers comfortable verifying part numbers and basic mechanical measurements, as well as professional repair shops that need a reliable, pre-set clutch assembly to restore blade engagement quickly.