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Repower Guide


Engine Designs


Electrical System

Fuel & Exhaust

Other Considerations

Line Drawings


Onan engines are out of production and no longer available!

Have a John Deere 316 318 or 420? 

PA-64726 Kohler Engine



Our 20 HP Kohler re-power kits will make for a

great replacement option on the JD 316, 318 and 420 models!

Click here for current pricing and ordering details


The Onan P220-11128 & P220-10935 are sold out, but we have a retrofit kit to replace this engine with a 20 HP Kohler Command engine. The CH20 engine was designed to replace the Onan P & B Series engines and includes the front stub shaft and a new muffler. The retro kits include necessary wiring, spacers and everything else required to make the exchange.

The kits include a detailed installation guide and we have been told by our customers that installation takes an average of 6 hours to finish. This engine is a Kohler factory spec made for the John Deere 318 & 420 tractors and is sold with a 2 year factory warranty.

** The  318  kit  also  works  well  for  the  316  tractors





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