Standard Piston Rings for John Deere Trailfire Snowfire 340 1979-1984

Standard Piston Rings for John Deere Trailfire and Snowfire 340

These standard piston rings are a replacement engine component for the John Deere Trailfire and Snowfire 340 snowmobiles, sealing the combustion chamber against compression loss.

Overview

These standard piston rings are built to restore compression on the John Deere Trailfire and Snowfire 340 snowmobile engines. Each ring set is sized for standard bore, making it the right choice when the cylinder has not been overbored. Riders and rebuilders working on a Trailfire or Snowfire 340 will find these rings a direct replacement for the worn originals.

Built For Performance

• Standard bore sizing for stock cylinder dimensions
• Designed to restore compression and combustion sealing
• Fits the 340 engine used in Trailfire and Snowfire models
• Sold as a set for a complete top-end ring replacement
• Constructed for consistent ring tension and cylinder wall contact

Fits These Machines

• for John Deere Trailfire 340
• for John Deere Snowfire 340

On-The-Job Use

• Top-end rebuilds on Trailfire and Snowfire 340 engines
• Restoring lost compression on high-mileage snowmobiles
• Routine engine maintenance and seasonal refresh
• Replacing worn or damaged rings after a teardown

Specs At A Glance

Good To Know

Q: Will these rings fit a cylinder that has been overbored? A: No, these are standard bore rings and are intended for stock cylinder dimensions. If the cylinder has been bored oversize, you will need rings matched to that oversize.

Q: Do I need to check ring end gap before installing? A: Yes, always verify ring end gap against your service manual specification before assembly. Proper gap prevents binding and poor sealing.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.