| Brand | Proform |
|---|---|
| Manufacturer Part Number | 66766 |
| Type | Engine Piston Ring Compressor |
| UPC | 00037995667666 |
Check the listing for details. Proform 66766 Engine Piston Ring Compressor. Condition: New. Listed at 51.28 USD. Putting the connecting rod through first, simply place the piston (with rings) into the tapered end of the ring compressor. Tighten the compressor snugly around the base of the piston. Then lay the compressor flat on the engine cylinder bore.