The Genie 27150A.S Chain Bullet is a genuine OEM replacement connector for select Genie chain-drive garage door openers. This component serves as the termination point for the drive chain at the opener’s trolley (carriage), helping maintain proper chain engagement and smooth travel. Use it as a direct replacement when the existing chain bullet is worn, damaged, or missing to restore reliable operation on compatible Genie chain-drive rail systems.
Installation typically involves relieving chain tension, removing the master link, swapping in the new chain bullet, and readjusting chain length/tension according to the opener’s service manual. No programming is required. Verify compatibility by checking your opener’s parts diagram or manual for part number 27150A.S. For safety, disconnect power and secure the door in the down position before working on the drive chain, then test door travel and limits after reassembly. This OEM Genie replacement part supports routine maintenance and repair for residential chain-drive garage door openers that specify 27150A.S; related hardware such as the master link and chain may be required and are typically sold separately.