SKU: ALL 86136
UPC: 848238041675
MPN: ALL86136
The Gilmer Belt 25.5 from ALLSTAR PERFORMANCE is a precision serpentine drive belt designed for high-performance engine applications where reliable power transmission and minimal slippage are critical. This belt is engineered for automotive enthusiasts, engine builders, and racing teams who demand consistent belt-to-pulley contact and durability under demanding operating conditions. The Gilmer Belt 25.5 represents the ideal solution for custom engine packages, supercharger installations, and street/strip builds requiring optimized accessory drive systems.
This Gilmer Belt 25.5 measures 25.5 inches in length with a 1-inch width and features a 3/8-inch pitch tooth profile, the industry standard for Gilmer-style synchronous belt drive systems. The 3/8-inch pitch design provides superior load-carrying capacity compared to standard V-belts while maintaining positive engagement with matching Gilmer pulleys, virtually eliminating slippage during acceleration and high-rpm operation. The belt's lightweight construction—just 0.19 lbs—minimizes rotating mass and inertial losses, making it ideal for applications where efficiency and response time matter. Gilmer belts are manufactured to exacting tolerances, ensuring precise belt-to-pulley tracking and extended service life even in high-heat engine compartments.
The Gilmer Belt 25.5 is best suited for custom engine builds, supercharger and blower installations, and performance street machines where accessory drive reliability cannot be compromised. Engine builders and tuners select this belt for tight clearance applications and compact pulley packages where traditional serpentine belts do not fit or perform adequately. Installation requires matching Gilmer pulleys sized to the 3/8-inch pitch standard; verify your pulley configuration before ordering. This belt works seamlessly with most high-performance alternators, water pumps, power steering pumps, and air conditioning compressors that accept Gilmer pulley interfaces, making it a versatile upgrade for virtually any serious performance engine package.
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