Aeromotive Pulley, HTD, 5M, 56-tooth, 1/2-inch Bore

Part Number 21123: This high-quality HTD 5M pulley with 56 teeth and a 1/2-inch bore is a great choice. Convert your 6gpm and 12 gpm mechanical pumps to use an HTD style belt. It's designed for a 5M pitch, 15mm wide HTD drive belt. The 56-tooth driven pulley easily installs on the pump. It's compatible with a 1/2' drive shaft having a 1/8' key. Works well with Part Number 11105 and 11107 Belt Drive Fuel Pumps. There are multiple HTD style drive pulley options to optimize pump speed according to engine RPM. Note that this product is not legal for sale or use on emission - controlled vehicles, except as a direct replacement matching OEM specs. HTD Drive Pulleys with 50% - 71% Drive Ratios are available. Also, HTD Drive Pulley options for 1' drive mandrel are available: click here.

To use this Aeromotive pulley, first make sure your mechanical pump is either 6gpm or 12 gpm as it's designed for conversion to an HTD style belt for these pumps. Install the 56 - tooth driven pulley on the pump. Ensure that your drive shaft is 1/2' with a 1/8' key as the pulley is compatible with this type. You can pair it with Part Number 11105 and 11107 Belt Drive Fuel Pumps. Use the multiple HTD style drive pulley options to adjust the pump speed according to your engine RPM. Remember, this product can't be used on emission - controlled vehicles, unless it's a direct replacement matching OEM specifications. For general maintenance, check the pulley regularly for any signs of wear or damage. Keep it clean from dirt and debris to ensure smooth operation.