Crank Pulley Gilmer 17T

The Crank Pulley Gilmer 17T from Peterson Fluid is a precision-engineered crankshaft pulley designed for engine builders and performance enthusiasts who demand reliable power transmission in custom and competition applications. This universal-fit component serves as the driving interface between your engine's crankshaft and auxiliary systems, making it essential for anyone upgrading belt-drive configurations or rebuilding a high-performance engine. Whether you're installing a serpentine belt system, upgrading to an underdrive or overdrive setup, or fine-tuning accessory drive ratios, the correct pulley geometry directly impacts charging output, water pump efficiency, and overall system longevity.

Built from lightweight aluminum and finished in gray anodize for corrosion resistance and durability, this Gilmer-profile pulley features 17 teeth with a 3/8-inch pitch and accommodates a 1-inch mandrel with a 1/8-inch keyway for secure crankshaft mounting. The 1.02-inch belt width is engineered to work with standard Gilmer (HTD) belt systems, which offer superior grip and load distribution compared to traditional V-belts. The anodized aluminum construction reduces rotating mass while maintaining structural integrity under continuous drive loads, a critical advantage in engines running high alternator output or multiple belt-driven accessories. The compact profile (2.75 x 1.15 x 3.6 inches) and lightweight design (0.21 lbs) make this pulley ideal for space-constrained engine compartments and weight-conscious builds.

Mechanics and engine builders rely on this pulley for custom belt system conversions, stroker engine builds, and applications where OEM pulleys don't match new accessory configurations. The Gilmer tooth profile ensures synchronous belt engagement, eliminating slip under load and maintaining consistent accessory drive speeds—critical for charging systems, cooling fans, and supercharger applications. Universal compatibility means this pulley works across multiple platforms when proper mandrel size and keyway specifications are verified; always confirm your crankshaft's 1-inch diameter and keyway depth before ordering to ensure proper fit and prevent installation issues.