Kohler CH680-0018 22.5HP 674cc V-Twin Engine – 1-1/8in Shaft, Electric Start

Description

Need to repower a commercial portable band sawmill? The Kohler CH680-0018 horizontal shaft engine provides an oversized 1-1/8-inch output shaft that eliminates expensive drive shaft modifications. Band sawmills require steady rotational power that stalls lightweight utility engines when saw blades enter knotty frozen logs. Kohler builds this 674cc 22.5HP commercial engine with an oversized 1-1/8-inch output shaft, full-pressure lubrication, and an overhead valve cylinder layout engineered to maintain blade speed.

An internal oil pump circulates pressurized motor oil to crankshaft journals through an automotive-style spin-on filter, keeping moving parts shielded on remote timber processing sites. The 1-1/8-inch horizontal shaft handles heavy band sawmill pulleys and multi-groove drive belts without lateral deflection. The dual-element commercial air cleaner stops fine sawdust before air reaches the carburetor venturi, preserving compression over multiple working seasons.

Core Mechanical Specifications of Kohler CH680-0018

• 674cc 22.5HP Commercial V-Twin Engine: Delivers continuous high-torque output to drive commercial band sawmill blades.
• 1-1/8-Inch Keyed Horizontal PTO Shaft: Matches heavy drive pulleys, centrifugal clutches, and direct-drive gearboxes.
• Full-Pressure Oil Lube with Spin-On Filter: Pumps filtered oil continuously to crankshaft journal inserts and rod bearings.
• Durable Cast-Iron Cylinder Sleeves: Resists bore wear from abrasive dirt, extending engine life in severe commercial service.
• Hydraulic Valve Lifters: Automatically maintain zero valve clearance, eliminating periodic valve lash maintenance.
• 12V Electric Starter Motor: Spins the flywheel ring gear with key activation to eliminate manual starting effort.
• Heavy-Duty Oil Cooler Assembly: Lowers operating oil temperatures to extend bearing life during hot summer cutting.

Mechanical Advantages for Commercial Fleets

This twin-cylinder motor survives rough operator treatment and dirty trailer transport without losing compression.

• An oversized 1-1/8-inch shaft handles high radial belt tension and direct coupling shocks without bending.
• Overhead valve geometry lowers seasonal gasoline purchases while providing broad torque bands for commercial equipment.

Equipment Fitment & Repower Applications

With an overall dry weight of 90 pounds and a 1-1/8-inch horizontal PTO shaft, this unit repowers portable band sawmills, commercial wood splitters, and firewood processors without frame modifications.

Factory Warranty Protection & Service Care

• Commercial equipment owners receive 3-Year limited factory warranty coverage on internal mechanical assemblies.
• Consumer property owners receive 3-Year standard factory warranty protection.

Change oil after the initial 20 operating hours, then service every 100 hours with SAE 30 or 10W-30 oil and a new filter. Inspect the air filter weekly, and set the spark plug gap at 0.030 inches. Order the Kohler CH680-0018 horizontal shaft engine from Mulmotor.com for guaranteed factory-fresh units, complete manufacturer warranty coverage, and dedicated commercial equipment support.