Excellent customer support is crucial to our company. To help you install your John Deere 420 replacement engine, we provide unlimited technical support. In addition, all of our kits come with an exclusive "kit guarantee." This means we send you everything you need to swap your old engine with the new one (unless otherwise stated). If you need additional components, feel free to contact us and we will send it out for you free of charge.

The John Deere 420 repower kit includes the following:

• New Engine with 3 Year Commercial Warranty
• Internal Oil Cooler
• Mechanical Decompression Carburetor
• Optional New Electric Clutch
• Driveline Adapters
• Exhaust
• Mounting Accessories
• Electrical Harness
• Kit guarantee
• Unlimited technical support

**Please Note**

- We have sold this kit hundreds of times.  Approximately 1% of those kits have had a conflict between the oil fill cap on the valve cover and the side panel / hood of the 420.  When this conflict occurs, we send an extra valve cover without an oil fill cap to our customers at no cost.  The customer simply has to swap to the valve cover with the oil fill cap when they change their oil.

- In a few rare cases, the bore in the firewall has needed trimmed for proper engine alignment.

Engine Information

Honda GX630 / GX690:

• Fuel Efficient Operation
  • Fuel economy is similar to fuel injection, with the simplicity of carburetion
  • Two-barrel inner-vent carburetor for more precise fuel metering
• High Output Performance
  • Hemispherical combustion chamber
  • Forged steel crankshaft
  • Pressure fed crankshaft bearings
• Proven Reliability
  • High capacity pump facilitates consistent oil delivery
  • Large diameter air intake for superior cooling
  • High efficiency cooling fan