High Torque 175ftlb (OEM 150) BIGBearing Billet Pulley PTO Clutch 01001979P fits Cub Cadet Tank M48 M54 M60 M72, ZT54 ZT60, Recon 48 60, MTD PRO MMZ-2554 MMZ-2560 Zero Turn Mowers - Replaceable Wire

What It Is

This is a heavy-duty, billet aluminum PTO (electric clutch) pulley designed for commercial-grade zero-turn mowers like Cub Cadet Tank, ZT54/ZT60, Recon, and MTD PRO MMZ series. It engages the mower blades via an electromagnetic clutch, delivering 175 ft-lbs of torque—25 ft-lbs more than the OEM 150 ft-lb unit—for tougher cutting conditions.

Fitment & Compatibility

Check these before buying:

• Deck size: Fits 48", 54", 60", and 72" decks on the models listed (Tank M48/M54/M60/M72, ZT54/ZT60, Recon 48/60, MTD PRO MMZ-2554/MMZ-2560).
• OEM number: Replaces Cub Cadet/MTD part 01001979P. Verify your mower’s original clutch part number matches.
• Bolt pattern & shaft size: This is a “BIGBearing” design with a larger inner bearing than stock. Measure your crankshaft diameter (typically 1" or 1-1/8") and confirm the clutch bolt pattern (usually 4-bolt, 3.5" center-to-center). If your mower uses a different bearing size, it won’t fit.
• Wire harness: Includes a replaceable wire connector—check if your mower uses a 2-pin or 3-pin plug. The product listing says “replaceable wire,” so you may need to splice or match your existing connector.

Key Things to Know

• Torque upgrade: 175 ft-lbs vs. OEM 150 ft-lbs means better blade engagement in heavy grass or wet conditions, but it may draw slightly more electrical current. Confirm your mower’s charging system (typically 15-20 amp) can handle it.
• Installation difficulty: Moderate. Requires removing the old clutch, aligning the new one on the crankshaft, torquing the center bolt to spec (usually 40-50 ft-lbs), and connecting the wires. You’ll need a puller tool for the old clutch and a torque wrench.
• Bearing quality: The “BIGBearing” is larger than stock, which improves durability under high load, but it means the clutch is slightly heavier. Ensure your mower’s deck and spindle assembly have clearance for the larger bearing housing.
• Common gotcha: The replaceable wire is a plus, but the wire gauge may differ from OEM—use dielectric grease on connectors to prevent corrosion. Also, check the air gap (usually 0.010–0.015") after installation; too tight or too loose causes slipping or overheating.

Should You Buy It

Buy this if you own one of the listed Cub Cadet/MTD PRO zero-turns and frequently mow thick, wet, or tall grass that bogs down a stock clutch. The extra torque and billet construction make it a solid upgrade for commercial or heavy residential use. Skip it if your mower uses a different bearing size or if you only mow light turf—the OEM 150 ft-lb clutch will suffice and costs less.