CRX 420cc Engine 1″ Shaft


SKU: CRX420 Engine Only-1-1 Category:


Engine Only


The largest of the single-cylinder line from CRX, the CRX  420 engine provides maximum performance every time you need it. Featuring all the bells & whistles of our single-cylinder engines, this powerful model handles the toughest of outdoor tasks.


Net Power 9.0 kW @ 3600 rpm

Net Torque 27 Nm @ 2800 rpm

Dry Weight 67 lbs

Dimensions 17.25″ x 16″ x 17.9″

Warranty 3yr Commercial



  • Industrial tough mufflers and shields designed for improved sound quality and lower sound level
  • Commercial-style dual element air filtration system helps maintain optimal power on dusty work sites
  • Choke and fuel shut-off valve with integral fuel filter housing closely located for convenience and easy maintenance
  • Cast iron cylinder decreases friction between mating parts as well as which helps keep the engine cool during extreme applications
  • ​Heavy-duty steel, powder-coated fuel tank
  • Precision-machined, forged iron crankshaft with heavy-duty steel ball bearings designed for low vibration and toughness required for the most extreme duty cycles
  • Low oil auto-shutdown sensor prevents damage to the engine when oil volume is low
  • Heavy-duty steel blower housing designed to protect vital components from impact under the toughest conditions

Additional information


Pull Start, Electric Start


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