OE Replacements: 121192, CUP121192, 3957440, 3957440

Details: O-Ring 0.07 in C/S x 0.364 in ID 1.78 mm C/S x 9.25 mm ID Silicone 60, Series # -012

Multiple Engine Applications

Direct replacement for OE part 3957440

Durable Silicone 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.