OE Replacements: 121323, CUP121323, 3930911, 3930911

Details: O-Ring 0.07 in C/S x 0.801 in ID 1.78 mm C/S x 20.35 mm ID Buna N 70, Series # -019

Multiple Engine Applications

Direct replacement for OE part 3930911

Durable Buna N construction

Quality You Can Trust – PAI has established themselves as the leading supplier of aftermarket heavy duty diesel parts, with quality standards that always meet or exceed OE standards

DETAIL – HDKits O-rings are carefully designed and feature unparalleled low tolerances. O-ring specifications are measured in a 3D environment and tested to ensure the 100% functionality.