Description Introducing Magnus Oil Pump Pulleys.  Also available in 1/2″ drive sizes to be used as fuel pump gears. These lightweight 6061 aluminum hard anodized aluminum HTD (high torque drive) pulleys have a curved tooth shape that provides higher strength than trapezoidal teeth. 1/2″ (.500″) pulleys are compatible with our fuel pumps or any 1/2 drive fuel pump.   If you already have an HTD drive you can use this to drive any 1/2 drive fuel pump 5/8″ (.625″) pulleys are more commonly used for Dry sump pumps. Our pulley are compatible with most dry sump pumps that use a .625″ (5/8″) shaft Our pulleys feature reversible offset to achieve better mounting positions on some dry sump and fuel pump shafts.  No need to re-engineer your pump mounting when all you need to do is flip the gear and achieve 1″ (25mm) offset needed to line up your pulleys.  Triple set screwed and have a set screw on the key to allow for excellent engagement.   Part# MMCENG2132               Magnus 32 Tooth HTD Pulley .625″ shaft .187″ Key Gear  MMCENG2132-500     Magnus 32 Tooth HTD Pulley .500″ shaft .125″ Key Gear MMCENG2132-501      Magnus 32 Tooth Guide Washer MMCENG2134              Magnus 34 Tooth HTD Pulley .625″ shaft .187″ Key Gear MMCENG2134-500    Magnus 34 Tooth HTD Pulley .500″ shaft .125″ Key Gear MMCENG2134-501      Magnus 34 Tooth Guide Washer MMCENG2136              Magnus 36 Tooth HTD Pulley .625″ shaft .187″ Key Gear MMCENG2136-500    Magnus 36 Tooth HTD Pulley .500″ shaft .125″ Key Gear