Alternator 3.15 Dual Foot Saddle K6 Serpentine Pulley Regulator & Temp Sensor - 170A Kit - 12VBalmar offers a wide range of alternator power upgrades designed specifically for marine industry applications. Balmar installs high reliability bearings, robust rectifier diodes and improved heat-sinking capabilities on all our alternators to ensure improved system reliability combined with increased charging power.Features:3.15 Dual Foot SaddleK6 Serpentine Pulley Regulator & Temp Sensor170A Kit12VThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.