CRX®420
A black, single-cylinder, air-cooled engine with a prominent black air filter housing, a black fuel tank, and the 'CRX 420' logo visible on the engine block.
Engine Specifications
| Description | Rating/Performance |
|---|---|
| Engine Type | Air-Cooled, Single Cylinder, OHV |
| Bore x Stroke | 3.54" x 2.60" (90 x 66 mm) |
| Displacement | 25.63 cu in (420cc) |
| Compression Ratio | 8.3:1 |
| Net Power | 9.0 kW @ 3600 rpm |
| Net Torque | 27 Nm @ 2800 |
| PTO Shaft Rotation | Counterclockwise |
| Ignition System | Transistor Magneto |
| Adjustable Throttle | Yes |
| Starting System | Recoil |
| Recoil Color | Black |
| Key Start/E-Start | E-Start Available |
| Low Oil Shutdown | Standard |
| Carburetor | Naturally Aspirated |
| Lubrication System | Splash |
| Governor System | Mechanical |
| Air Cleaner | Dual Element |
| Oil Capacity | 0.29 gal |
| Fuel Tank Size | 2.0 gal |
| Evaporative Emissions | Yes |
| Exhaust Emissions | 50 State |
| PTO Shaft Dimensions | 1" (25.4 mm) |
| PTO Flange | SAE J609 Flange B |
| Engine Dry Weight | 67 lbs |
| Dimensions | 17.25" x 16" x 17.9" |
| Warranty | 3yr Commercial |
Note: Weights are approximate and can vary with options. Net power levels are per SAE code J1349.
Power Measurement Standard: SAE J1349
The SAE J1349 standard measures net power with the manufacturer's production muffler and air cleaner in place. Net power more closely correlates with the power the operator will experience when using a CRX engine powered product. The power rating of the engines indicated in this document measures the net power output at 3600 rpm and net torque at 2500 rpm, as tested on a production engine. Mass production engines may vary from this value.
Actual power output for the engine installed in the final machine will vary depending on numerous factors, including the operation speed of the engine in application, environmental conditions, maintenance, and other variables.
Images showcasing CRX engines, including the CRX 420 model and another larger engine unit, presented in a clean, professional layout.
