23.5 hp Kohler Command Pro Basic CH730-3004 725cc, 1 7/16" x 4 1/2" Crankshaft,
Replaces Old Kohler Engine Spec# CH25 68500, CH730-0038, CH730-3038, CH730-3208

This engine was rate as 25 hp but with new rating system it is now rated as 23.5 hp, it is still a 725cc engine.

• Overhead Valve Design
• Hydraulic Valve Lifters
• Engine Mounted Oil Cooler
• Cast-Iron Cylinder Liners
• PTO Sleeve Bearing (Side Load)
• Electronic Ignition
• Large Capacity Dual Element Air Cleaner
• High Efficiency Grass Screen and Fan
• Closed Breather System
• Stellite Exhaust Valves
• Full Pressure Lubrication
• Large Capacity In-Line Fuel Filter
• Easy Access Valve Cover Oil Fill-Yellow
• Oil Level Dipstick-Yellow
• Large Capacity Oil Filter, Dual Oil Drain
• Oil Sentry (Switch Installed and Wired but Unconnected)
• Variable Speed Governor
• High Performance Accelerator Pump Carburetor
• Fuel Shutdown Solenoid, Smart-Choke Carburetor
• Mechanical Fuel Pump
• High Performance Spark Plugs
• No Key, No Control Panel
• 12 Volt Solenoid Shift Starter
• 20 Amp Alternator, Regulated
• 3 Year Warranty
• Crankshaft-1.437 inch (1 7/16 inch)(36 mm) Diameter x 4.453 inch (113 mm) PTO Length, 0.375 inch  (9.5 mm) Keyway, Drilled and Tapped 1.5 inch  (38 mm) Deep, 5/8-18 UNF
• PTO Face-5.625 inch (143 mm) Diameter, (4 Holes) 3/8-16 x 0.67 inch (17 mm) Deep, 7.75 inch (197 mm) Diameter, (4 Holes) 7/16-14 x 0.83 inch (21 mm) Deep
• 7 inch (178 mm) Diameter Pilot

See Exhaust Systems

• 2478610S PTO Canister Muffler Kit-Center Outlet
• 2478611S PTO Canister Muffler Kit-Filter Side Outlet
• 2478612S PTO Canister Muffler Kit-Starter Side Outlet
• 2478619S Side Mount Muffler Kit-Starter Side
• 2478620S Side Mount Muffler Kit-Filter Side
• 2478621S Raised Body PTO Canister Kit-Filter Side Outlet
• 2478622S Raised Body PTO Canister Kit-Starter Side Outlet

Durable, Long Life Design.

Hydraulic valve lifters are oil pressurized, ensuring that push rods stay in constant contact with the rocker arms. Requiring no adjustment, the valve train is virtually maintenance-free. In addition, full-pressure lubrication delivers continuous lube to critical engine components, even at 25-degree angle of operation and optional oil cooler regulates the oil temperature extending oil-change intervals. Large capacity, in-line fuel filter provides extra protection against dirt particles that can clog fuel lines.

High Power Performance.

Overhead valve technology provides greater volumetric efficiency and a higher compression ratio. This produces more power, improved fuel economy and cooling and reduces oil consumption. In addition, there is virtually no carbon buildup, reducing overall maintenance costs. The variable speed, mechanical governor promises smooth performance, regardless of application or fluctuating demands for power.
 

Reliable Starting.

Kohler Command PRO® electronic ignition system generates a stronger spark at low cranking speed and Automatic Compression Release (ACR) allows compression to escape during cranking to reduce pull force.
 

User-Friendly Maintenance.

• Extended maintenance intervals
• Yellow oil fill cap & dipstick handle
• Dual oil drains
• Easy-access oil fill/dipstick
• Two-year limited warranty

High Power Performance.

• High-performance spark plugs
• 20 amp charging, regulated
• Larger in-line fuel filter
• Overhead valve (OHV) design

Reliability and Long Life Design.

• Hardened crankshaft journals
• High-efficiency fan and screen
• Larger dual-element air filter with foam pre-cleaner
• Cast iron cylinder liners
• Hydraulic valve lifters
• Full-pressure lubrication
• Spin-on, full-flow oil filter

Quiet, Smooth Operation.

• Engineered material blower housing
• Mechanical fuel pump
• CARB & EPA emission-certified

Easy Dependable Starts.

• Smart-Choke™ carburetor
• Electronic ignition system
• Solenoid shift starter