Out of stock
SKU: MPP112
MPN: 112
The MARCH PERFORMANCE 1-11/16 inch Diameter Serpentine Alternator Pulley (Model 112) is a precision serpentine belt pulley engineered for vehicles running serpentine drive systems. This 6-rib alternator pulley features a 1.688-inch diameter and is manufactured from aluminum with a clear powder coat finish, making it suitable for engine bay environments where corrosion resistance and durability matter. The pulley ships with a cover included, simplifying installation and reducing setup time.
The 6-rib serpentine design ensures reliable belt engagement across a range of engine speeds and load conditions. The 1.688-inch diameter specification is critical to maintaining proper belt tension and alternator output consistency in serpentine systems where multiple accessories share a single continuous belt. Aluminum construction keeps overall weight low while the clear powder coat protects against oxidation without adding unnecessary bulk. The included cover protects the pulley from debris and helps manage engine bay temperature dynamics. At 0.55 lbs, this component integrates seamlessly into retrofit and replacement applications.
This pulley suits builders and technicians performing serpentine belt system upgrades, alternator replacements, or complete engine bay refreshes on vehicles originally equipped with serpentine drive configurations. The universal fitment and included cover make it valuable for shops working across multiple platforms where standardized pulley sizing is required. Alternator pulley replacement becomes necessary when wear patterns develop on the belt contact surface or when upgrading to a higher-output alternator that demands compatible pulley geometry.
MARCH PERFORMANCE is recognized in the automotive accessory market for precision serpentine belt components and engine-driven system upgrades. The 1-11/16 inch serpentine alternator pulley represents the brand's focus on fitment accuracy and material durability. When sourcing replacement or upgrade serpentine alternator pulleys, specification verification against your vehicle's existing pulley ensures proper belt tracking and alternator function.
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