An O-ring for fuel injectors is a small seal in a ring shape that is crucial in preventing fuel leaks in the fuel injection system. It is a must to replace these when they are damaged or deformed to prevent fuel leakage from the fuel injector. These injector O-rings from Bosch Motorsport are sold in a pack of 5 replacement O-rings. Designed for EV14 fuel injectors and suit both upper and lower O-ring grooves in the fuel injector.
