Lazer Z Lawn Mower Tractor PTO Clutch Exmark 27HP And 30HP Kohler Units, SN 370,000 And Up

This clutch is engineered for Lazer Z units with serial numbers 370,000 and above - a specific chassis generation with specific mounting geometry and driveline specs. Exmark's Lazer Z production history spans multiple clutch families, and ordering by machine model alone risks the wrong family. This clutch matches the SN 370,000+ Kohler generation exactly: same bore, same pulley, same mounting position, same electrical connector. Check your serial number, confirm the generation, and install with confidence.

The 1-inch crankshaft bore distinguishes this clutch from the 1-1/8-inch bore clutches on the Kawasaki-powered Lazer Z generations. The 27HP and 30HP Kohler Command engines use a 1-inch crankshaft output - this clutch slides on with the correct interference fit, no adapters, no modification, no forcing a wrong-size bore. For owners who have cross-referenced part numbers only to end up with a 1-1/8-inch clutch that will not mount, the bore size is the critical distinction.

Rated at 200 ft-lbs, this clutch delivers the full commercial torque class for the Lazer Z's wide-deck platforms. The 48-inch to 72-inch fabricated decks on this generation generate significant blade inertia, and the 200 ft-lb rating holds full blade speed through wet turf and heavy thatch without slip or chatter. Combined with the 6-5/16-inch pulley's belt wrap, the clutch maintains the blade-tip speeds Exmark engineered for the Velocity Plus and UltraCut deck platforms.

Beyond the headline 27HP and 30HP units, this clutch also covers the 18–23 HP Kohler units on the same SN 370,000+ generation - a single SKU serving the full Kohler-powered Lazer Z population of that chassis era. For dealers and shops servicing mixed Kohler Lazer Z configurations, one part number covers the power range without model-by-model cross-referencing. The 1-inch bore, 6-5/16-inch pulley, and CW rotation are shared across the entire SN 370,000+ Kohler family.