7/8" to 1" Inch w/Step Key Gas Engine Pulley Crank Shaft Sleeve Adapter Predator

7/8" to 1" Crank Shaft Sleeve Adapter for Predator

This steel sleeve adapter converts a 7/8-inch engine crankshaft to a 1-inch diameter to accommodate larger pulleys.

Overview

This 7/8" to 1" crank shaft sleeve adapter offers a dependable solution for engine modifications and pulley adaptions. Designed to fit onto small gas engines, the 7/8" to 1" crank shaft sleeve adapter allows users to install standard 1-inch bore pulleys easily. Custom fabricators use this 7/8" to 1" crank shaft sleeve adapter to modify power transmission systems without replacing the entire engine.

Built For Performance

• Cold rolled steel construction ensures high durability and strength.
• Includes a custom step key to bridge mismatched keyway sizes.
• Machined tolerance guarantees a tight slip fit over the crankshaft.
• Resists wear and deformation under heavy engine loads.

Fits These Machines

• for Predator gas engines with 7/8-inch crankshafts

On-The-Job Use

• Adapting drive pulleys on custom go-karts and mini bikes.
• Converting shaft diameters on replacement pressure washer engines.
• Modifying agricultural water pumps and air compressors.

Specs At A Glance

Good To Know

Q: Does the adapter require welding? A: No, this is a slip-on mechanical adapter that is locked in place using the included step key and existing pulley set screws. No permanent modifications are required.

Q: Can this sleeve be cut to length? A: Yes, if the engine crankshaft is shorter than the adapter sleeve, the steel tubing can be trimmed down carefully using a hacksaw or cutoff wheel.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.