Increase the responsiveness of your vehicle's engine, with the OTR Remanufactured Fuel Injector with Expertise Built In. Thanks to its specialized design, this replacement component is able to spray a small amount of fuel directly into the combustion chamber to improve reaction time and overall fuel efficiency. Injectors that need replacement often show symptoms such as thick exhaust, misfiring, and a stalling engine. FleetPride is your First Click in Heavy Duty.