Features: Premium Double V Belt Pulley with 19mm/20mm bore precisely engineered for 168F/170F 7HP engines, ensuring vibration free power transmission and extended belt life through double grooves iron construction. Double grooves design minimizes noise and slippage while machine screw fixing holes provide secure installation, ideal for high speed engine applications requiring stable belt alignment. Essential upgrades for mechanic, agricultural equipment maintainers, and small engine repair specialists working for 7HP engines in industrial or farming environments. Optimizes power transfer in generators, water pumps, and machinery by maintaining consistent belt tension during prolonged operation under heavy loads or variable conditions. Ensures ±0.1mm rotational accuracy for synchronized belt movement, reducing wear on connect engine component while withstanding corrosion in humid or dusty workspaces. Specifications: Material: Iron/Aluminum Pattern: 4 pattern optional Package Includes: 2pcs Belt Pulley note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.