HD Switch HiTorque 130ftlbs (OEM 105) BIGBearing 917-05188 5219-159 Billet Pulley Electric PTO Clutch Replaces Warner 5219159 - OEM Upgrade - with Upgraded Replaceable Pulley Bearing Lawn Mower

What It Is

This is an aftermarket electric PTO (power take-off) clutch for lawn tractors and zero-turn mowers. It engages and disengages the mower deck blades at the flip of a switch, with a high-torque rating of 130 ft-lbs and a billet pulley with a replaceable bearing—designed as a direct replacement for Warner 5219159 and OEM part 917-05188.

Fitment & Compatibility

Before buying, verify these three things:

• OEM part number: Confirmed replacement for Warner 5219159 and OEM 917-05188 (often used on John Deere, Cub Cadet, Husqvarna, and many MTD-built models).
• Shaft size & bolt pattern: The clutch fits a 1-inch diameter crankshaft with a 3-bolt mounting pattern. Measure your existing clutch’s bolt circle (typically 3.5 inches) and shaft diameter to confirm.
• Deck size & model year: This clutch is for engines around 20-26 HP, common on 42-54 inch decks. Check your mower’s model number (not engine model) against the manufacturer’s parts lookup for 917-05188 or 5219159.

Key Things to Know

• Torque rating: 130 ft-lbs is higher than most OEM clutches (often 90-110 ft-lbs). This means better belt grip and less slipping under heavy grass or wet conditions, but it may slightly increase battery draw.
• Replaceable bearing: The billet pulley uses a standard bearing you can swap out when it wears—saves replacing the whole clutch. Keep a bearing part number handy (often a 6202-2RS).
• Installation difficulty: Moderate. You’ll need a puller to remove the old clutch from the crankshaft and a torque wrench to tighten the center bolt to 45-55 ft-lbs. No special wiring changes if replacing a direct-fit unit.
• Common gotcha: The supplied hardware may not match every mower’s bolt length. Check that the bolts sit flush against the clutch face without bottoming out in the crankshaft.

Should You Buy It

Buy this if your OEM clutch has failed (slipping, not engaging, or noisy) and you want a tougher upgrade with a serviceable pulley bearing. It’s a solid choice for heavy-use residential mowers or light commercial work, but skip it if your mower uses a 7/8-inch shaft or a different bolt pattern—it won’t fit.