OE Replacements: 121311, CUP121311, 3678738, 3678738

Details: O-Ring 0.0103 in C/S x 5.600 in I.D. 2.616 mm C/S x 142.24 mm I.D. EPDM (75)

Multiple Engine Applications

Direct replacement for OE part 3678738

Durable EPDM 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.