Pulley Rear Fine Spline w/Yoke

The Pulley Rear Fine Spline w/Yoke (model 501-30037) from SWEET is a precision-engineered component designed for high-performance engine accessory drives and serpentine belt systems. This rear pulley serves as the load-bearing counterpart in dual-pulley setups, handling rotational forces from alternators, water pumps, and power steering systems. Built for enthusiasts who demand reliability in street rods, custom trucks, and performance builds, this component is ideal for upgrading engine-driven accessories on modified platforms.

The fine spline design enhances grip and load distribution, reducing slippage and belt wear under high-RPM operation. The integrated yoke allows seamless coupling with crankshaft or accessory shaft splines, ensuring concentricity critical for vibration-free operation. SWEET's manufacturing process yields a compact, lightweight package at just 2 lbs, making it suitable for weight-conscious builds while maintaining the dimensional precision (5 x 3.5 x 5 inches) required for tight engine bay installations.

This pulley excels in applications where dual-pulley serpentine systems are mandatory, particularly in small-block and big-block swaps, LS conversions, and forced-induction builds requiring oversized alternators or auxiliary water cooling circuits. Its splined interface resists spinning and creep, making it a reliable choice for serious engine builders. The Pulley Rear Fine Spline w/Yoke is designed to meet the demands of high-performance applications.