Description
When your vintage John Deere starts burning oil and losing compression, it’s likely those pistons and sleeves telling you they’ve put in their time. The 340 cubic inch gas engine was a workhorse in its day, but after decades of service, even the toughest engines need rebuilding. This complete piston kit gives you everything to bring those cylinders back to factory specs.
What You’re Getting
- Complete sleeve and piston assembly with 1/4 inch oversize bore for worn cylinders
- Four-ring pistons that deliver better sealing and longer life than original equipment
- All rings, pins, and retainers included—no hunting down separate parts
- Direct replacement that restores proper compression and oil control
- One kit rebuilds the entire engine when you’re this deep into it
Built for Vintage John Deere Gas Engines
This kit works specifically with the 340 CID six-cylinder gas engines found in classic John Deere tractors. These engines powered through hay seasons and harvest time for years, but eventually the cylinder bores wear beyond standard tolerances. This oversize kit lets you machine the block and get back to reliable operation.
Made to Last
These pistons and sleeves are built to handle the heat and pressure these engines develop under load. The ring package provides proper oil control while maintaining good compression for the power you need in the field. Quality materials ensure this rebuild will serve you for years of continued operation.
Good to Know
This is a complete teardown job that requires machine shop work to bore the cylinders to the oversize specification. Most rebuilders recommend checking the crankshaft and rod bearings while you’re this deep into the engine. The kit includes one complete set for all six cylinders.
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