Milodon 21500 8.5" High Performance Oil Pump Shaft with Steel Gear - Compatible with Big Block Mopar Engines - Perfect for Engine Rebuilds & Performance Upgrades

CNC machined from 4130 chrome moly and centerless ground to avoid stress risers. These race proven shafts eliminate breakage-prone stock units that frequently fail when used with high volume oil systems, heavy racing oil, and high RPM use. Ends are induction heat-treated to reduce wear. Chevy shafts use pinned steel collars instead of plastic. Good insurance at a low cost no matter what the application.

Manufactured from 4130 Chrome-moly shaft

Distributor shaft and steel gear for 383, 440 and Hemi

Eliminate breakage-prone stock units

Steel gear assemblies are for flat tappet and hydraulic cams

Induction heated-treated ends to reduce wear