The CAT 0R9940 is a genuine Caterpillar Remanufactured (Reman) Fuel Injector, engineered to deliver reliable performance and efficiency for compatible Cat engines. As a HEUI (Hydraulically Actuated Electronically Controlled Unit Injector), it plays a vital role in the precise injection of fuel, contributing to optimal engine power, fuel economy, and reduced emissions. Choosing a Cat Reman part like the 0R9940 offers a cost-effective alternative to new parts while meeting Caterpillar’s rigorous standards for quality and durability, ensuring your equipment operates as intended.