High-quality main bearing manufactured to original equipment manufacturer specifications for reliable performance.
Internal Parts

Active filters
Manufactured at leading OEM factories, mainly in Japan. Made to exact OEM specifications for reliable fit and performance.
Manufactured at leading OEM factories (mainly Japan). Made to exact OEM specifications for reliable crankshaft support and long service life.
Precision-made at leading OEM factories in Japan. Produced to exact OEM specifications for reliable performance and long service life.
Precision main bearing made to OEM specifications for reliable performance.
Aircraft-grade pushrods with heat-treated steel tips; fits stock stroke lengths.
OEM-style replacement plug for oil pump openings. Made in the USA.
Hard-to-find 1/4"-24 hex fasteners, six-pack; OEM-style complete set with studs and fasteners.
Includes 1/4"-24 hex nuts in a six-pack and an OEM-style complete assembly with studs and nuts for proper fit.
OEM-style kit includes studs, nuts and a six-pack of hard-to-find 1/4"-24 hex nuts for oil pump mounting.