Increase the responsiveness of your vehicle's engine, with the OTR Remanufactured Electronic Diesel Fuel Injector with Expertise Built In. Due 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. Replacement injectors are often needed when symptoms such as thick exhaust, misfiring, and a stalling engine appear. FleetPride is your First Click in Heavy Duty.