Kohler CH730-3203 23.5HP 747cc V-Twin Engine – 1-1/8in Shaft, Electric Start

Description

Need to repower a commercial hydroseeder? The Kohler CH730-3203 horizontal shaft engine provides high-displacement 747cc torque that eliminates expensive drive modifications. Commercial hydroseeders and straw blowers operating under continuous slurry agitation suffer shaft bending when fitted with lighter powerheads. Kohler builds this 747cc 23.5HP commercial engine with an oversized 1-1/8-inch output shaft, full-pressure lubrication, and an overhead valve cylinder layout engineered to maintain agitation 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 erosion control sites. The 1-1/8-inch horizontal shaft handles direct couplings and multi-groove drive belts without lateral deflection. The dual-element commercial air cleaner stops fine mulch dust and dirt before air reaches the carburetor venturi, preserving compression over multiple working seasons.

Core Mechanical Specifications of Kohler CH730-3203

• 747cc 23.5HP Commercial V-Twin Engine: Delivers continuous high-torque output to drive commercial hydroseeders and mulch blowers.
• 1-1/8-Inch Keyed Horizontal PTO Shaft: Matches heavy agitator 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 operations.

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 94 pounds and a 1-1/8-inch horizontal PTO shaft, this unit repowers commercial hydroseeders, straw blowers, large wood chippers, and hydraulic power units 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 CH730-3203 horizontal shaft engine from Mulmotor.com for guaranteed factory-fresh units, complete manufacturer warranty coverage, and dedicated commercial equipment support.