The MAHLE OE cast piston set for GMC passenger and truck 250 engines (1966–1984) is supplied as a set of six pistons ready for installation. OE-level features include compensated ring grooves for correct ring loading, expansion-controlled designs for tight clearances to reduce noise and wear, and improved oil control. Pistons are offered with mounted rings, pins and clips for installer convenience.
Mahle OE GMC Pass & Trk 250 Eng 1966-84 Piston Set (Set of 6)