This stainless steel tool makes installing pistons easy. 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. U.S. Pat. 6,427,301. Sold individually.
Product Details:

• Engine Piston Ring Installation Tool
• Universal Model
• Fits 2.50 Inch To 5.00 Inch Bore Sizes
• Made From High-Quality Stainless Steel and Features A Natural Finish
• Complete With Band Clamp For Accurate Adjustment
• Patented
• Sold As Each