- Direct replacement to OEM part number J47386 or W470589015900.
- This tool is used with the W470589021400 Carbon Scraper adapter. (NOT INCLUDED)
- Our heavy duty piston ring installer is used for the repair of Detroit Diesel/Mercedes Benz truck engines DD15 and DD16.
- Specially designed to compress the rings and allow the piston to be inserted into the cylinder bore without damaging the ring set.
- Oni Tools ensures quality products and stands behind top of the line manufacturing. We guarantee our products to last and offer support along the way.
Truly a reliable tool!
Constantly worrying before with over heating on my engine's cylinder wall but gladly this compressor helped me overcoming my usual problem.
Does the job.
It compressed the rings really well and barely scratched the ring set. Great tool
This replacement piston ring compressor performs incredibly well. Strongly suggested.
This Piston Ring Compressor appears to be well-crafted and precisely built. It works perfectly.
Better than other Auto shops
Excellent J-47386 replacement, much better than other auto shops.