Feuling Parts 12-Point External Primary/Transmission Engine Fastener Kit — external primary, transmission

High-strength hardware rated at 170,000 psi tensile strength for superior clamping and long-term reliability.

Precision rolled threads prevent galling and promote consistent torque loading, while a wide underhead flange gives even load distribution to improve sealing and reduce leaks.

The kit ships with moly assembly lubricant and includes hardware for primary, derby and inspection covers, gearbox top cover, gearbox bearing housing, clutch release cover, speed sensor and engine-to-gearbox mounting points.

Manufactured by ARP® to Feulings® exact specifications and made in the USA. EU rating: 1172,11 MPa. Not for '23 models with 121" VVT motors.