Navistar DT466 Inframe Overhaul Rebuild Kit, FP Diesel, Piston 1809683C2, 1817520C2, 4 Ring

This engine kit is a 4 ring upgrade. (Upgrading from the original 3 ring piston)
Engine serial numbers 439,619 to 850,653, 1984-1993 years
Inframe Kit Includes (6) Cylinder Kit Complete, Standard FP-18103594R Piston FP-18096834, Compression Ratio 16.3:1, 4 Ring     (1) Main Bearing Set (6) Connecting Rod Bearing Pair (1) In-Frame Gasket Set FP-PGN466IF 
Overhaul Kit Includes (6) Cylinder Kit Complete, Standard FP-18103594R Piston FP-18096834, Compression Ratio 16.3:1, 4 Ring     (1) Main Bearing Set (6) Connecting Rod Bearing Pair (1) Complete Overhaul Gasket Set FP-PGN466C