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Diesel Ring Compressor 3-1/2" to 7"
- Install pistons 3-1/2" to 7" and 89mm to 177mm in diameter on trucks and tractors
- Slip the tool over the piston and tighten with l-shaped wrench
- Bands are made of spring steel and beaded along the lower edge to prevent the compressor from entering the cylinder
- 6-1/2" high positive lock compressor has 4 tension bands and compresses diesel upper and lower rings
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