Description
When your diesel engine starts burning oil, making knock sounds, or losing compression, it’s time for an engine rebuild – and this complete piston and ring kit gives you everything you need to get your 4T-390 turbocharged diesel running like new again. Whether you’re dealing with worn rings, scored cylinders, or pistons that have seen too many hours, this oversized kit handles the rebuild right the first time.
What You’re Getting
- Complete pistons and rings for all four cylinders in one kit – no guessing or separate orders
- 0.5mm oversized pistons to restore proper compression after cylinder boring
- Premium ring sets designed for high-pressure turbocharged diesel operation
- Includes all pins, clips, and hardware needed for a complete installation
- Built to handle the extra heat and pressure that turbocharging creates
Built for Turbocharged Performance
The 4T-390 is a workhorse engine found in mid-sized tractors and industrial equipment where reliability matters. This turbocharged four-cylinder puts out serious power for loader work, heavy tillage, and PTO-driven implements. When compression starts dropping and oil consumption goes up, this oversize kit restores the tight tolerances that made this engine dependable in the first place.
Made to Last
Turbocharged diesels run hotter and under higher pressures than naturally aspirated engines, so these pistons use advanced alloys that resist heat distortion and ring groove wear. The rings are designed specifically for diesel service with the right tension to seal properly without excessive friction. Each component is built to OEM specifications for long service life.
Installation Notes
This is an oversize kit, so your cylinders will need to be bored 0.5mm over standard before installation. Have your block checked for cracks and deck warpage while it’s at the machine shop. Take your time with ring gap measurements and follow the manual’s torque specifications – a careful rebuild now saves you from doing it again later.
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