Bombardier BRP Sea-Doo Watercraft Fuel Injector 420874834 Marine Fuel Injector

This fuel injector directly replaces OEM numbers 420874834 and 420874846, with broad compatibility across batches. Its function is to precisely inject fuel into the engine, operating at 24V with 1111 MPa pressure to ensure combustion efficiency. Fits Sea-Doo GTI, GTR, GTX, RS, RXP, RXT-X series boats with 155, 215, 260 horsepower. Replacements resolve acceleration hesitation, rough idle, and high fuel consumption; power output becomes smoother. If boat starts hard, experiences fuel cut at high speed, or exhaust emits black smoke, the injector is aging and should be replaced.