The notation “Piston & Ring Kit, 1.00mm Oversize – HCC3802565” indicates that this kit includes pistons and piston rings designed for use in an engine with cylinder bores that have been machined or worn beyond standard specifications, requiring a 1.00 millimeter oversize. Oversize pistons are commonly used during engine rebuilds when the cylinder walls need to be enlarged to accommodate new pistons and restore proper functionality. The 1.00mm oversize specification denotes the additional diameter of the pistons compared to the standard size.

Specifications:

Includes:

• (1) HCC3802234 Piston & Rings
• (1) HCC3926635 Piston

Fitment Guide

Cummins

• ENGINE:
  • 3.9 Engine-4BT 3.9, w/ Piston # 6631, 6632, 6634, 6635; Emission Certified, Turbocharged, In-Line Injection Pump, Automotive Application
  • 5.9 Engine-6BTA 5.9, w/ Piston # 6632, 6634, 6635; Emission Certified, Turbocharged, In-Line Injection Pump, Automotive Application