HKS V-Belt 4PK950 Fine Tune

HKS V-Belt 4PK950 Fine Tune Precision power transmission from HKS — the V-Belt 4PK950 Fine Tune is engineered for reliable accessory drive performance in high-demand automotive applications. Designed for enthusiasts and professionals who require consistent belt tension, reduced slip and long service life. Part: 4PK950 (4-rib, 950 mm) Brand: HKS — proven motorsport and performance aftermarket expertise Application: Accessory drives for performance cars, turbo builds, and tuned engines Features: High-tensile fibers, heat-resistant compound, improved grip for fine tuning belt tension Benefits: Stable RPM under load, reduced belt stretch, quieter operation and extended durability This Fine Tune series belt is ideal when precise accessory drive behavior matters — whether adjusting supercharger/turbo pulley ratios, upgrading alternator or A/C systems, or optimizing engine bay setups. Installation is straightforward and compatible with standard 4-rib pulley systems sized 950 mm. Why choose HKS V-Belt 4PK950? Built to motorsport standards for consistent performance and longevity, making it a smart upgrade for tuned and high-output engines.