Kohler CH640-3202 – 20.5HP 674cc Horizontal Engine
Kohler CH640-3202 features a 1-1/8 inch shaft and a high-capacity air cleaner, delivering a smooth and efficient power solution for professional industrial equipment.
- Engine Type: 4-Stroke 674cc V-Twin OHV.
- Output Shaft: 1-1/8 inch straight keyed.
- Starting System: Solenoid shift electric start.
- Output Power: 20.5 HP peak performance.
- Control Technology: Large-capacity dual-element air filter.
Description
Kohler CH640-3202 20.5HP Horizontal Engine
Solving premature engine failure in high-dust environments, the Kohler CH640-3202 delivers a high-protection solution through its advanced dual-element air filtration system. This 674cc Command PRO architecture allows the Kohler-engineered platform to generate 32.5 lb-ft of torque for intensive commercial applications. The specific 3202-spec design integrates hydraulic lifters to optimize volumetric efficiency and eliminate manual valve lash adjustments during 20.5HP operations. This mechanical configuration ensures durable power delivery for professional-grade zero-turn mowers and construction machinery across the USA.
Advanced emission compliance standards define the Kohler CH640-3202 as a leader in high-performance industrial engineering for rugged terrain. The specialized metallurgy in this 3202 specification incorporates chrome-plated piston rings and a full-pressure lubrication system to mitigate internal abrasion. This horizontal power unit features a dedicated oil cooler to maintain thermal stability when the governor reacts to load demands. Professional operators utilize the secure 1-1/8 inch straight keyed shaft for high-torque power transmission.
Technical Specifications of Kohler 20.5HP CH640-3202
- Reliable 4-Stroke OHV V-Twin improves balance
- Verified 674cc displacement maximizes engine density
- Efficient 5.5 Lph fuel rate maintains efficiency
- Superior 44.1 Nm torque handles industrial machinery
- Heavy 1-1/8 inch keyed shaft secures pulleys
- Powerful 12V electric start facilitates rapid ignition
- Forced air cooling system prevents engine overheating
Kohler Command Pro CH640-3202 Technical Specs
| Brand | Kohler |
| Full Model Code | CH640-3202 |
| Country of Origin | USA |
| Engine Orientation | Horizontal Shaft |
| Engine Type | 4-Stroke, OHV, V-Twin |
| Displacement | 674 cc |
| Bore x Stroke | 80 x 67 mm |
| Compression Ratio | 8.5:1 |
| Maximum Output | 15.3 kW (20.5 HP) @ 3600 RPM |
| Maximum Torque | 45.0 Nm (33.2 lbs-ft) @ 2400 RPM |
| Specific Fuel Consumption | 6.0 L/hr @ 3600 RPM |
| Fuel Induction System | Two-Barrel Carburetor |
| Ignition System | Electronic Ignition |
| Start System | Electric Start |
| Shaft Specification | 1-1/8" (28.5 mm) Straight Keyway Shaft (Extended Length) |
| Fuel Tank Capacity | Data not released (External) |
| Oil Capacity & Type | 1.9 Liters / SAE 10W-30 |
| Cooling System | Air Cooled |
| Dry Weight | 41.0 kg |
| Dimensions | 355 x 441 x 490 mm |
| Standard Warranty | 3 Years |
| Primary Application | Construction Machinery, High-Flow Pumps, Mobile Hydraulic Units |
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