0R8791 0R-8791 Diesel Injector Assembly 4W7020 Compatible with Caterpillar 3408/3408B/3408C, 3412/3412B/3412C Engines; Specialized Injector for Mining Trucks, Generator Sets, and Construction Machinery

Specifications:
Original Equipment (OE) Part Number 0R8791, Universal Replacement Part Number 4W7020, Caterpillar pencil-style mechanical fuel injector, original factory dimensions, original factory nozzle design, direct replacement for original vehicle parts without damage, individually sealed packaging.

Compatible Models:
Specifically designed for Caterpillar 3406B and 3406C diesel engines; compatible with the full range of equipment powered by 3406B/C engines, including White GMC heavy-duty tractor trucks, Caterpillar original mining dump trucks, construction excavators, and generator sets.

Materials:
The valve body is made of high-quality steel; the needle valve assembly undergoes high-precision grinding; internal seals are designed to withstand high pressure and corrosion, as well as the high temperatures, frequent vibrations, and harsh heavy-duty mining conditions typical of these engines, ensuring resistance to fuel leakage and deformation.

Repair and Replacement:
Replaces aged or damaged original injectors, resolving issues such as poor fuel atomization, idle vibration, difficult starting, increased fuel consumption, black exhaust smoke, and lack of power. Installs in-place without modification and serves as a standard spare part for maintenance of mining and construction equipment.

Stringent Quality Control:
All products undergo on-machine testing for injection pressure, atomization performance, and sealing integrity. Every parameter is benchmarked against original factory standards, and only products that pass 100% inspection are released from the warehouse. Both new and remanufactured options are available to meet the bulk purchasing needs of repair shops and the OEM supply requirements of equipment manufacturers.

Warranty: 6 months
Note: If you have any questions, please feel free to contact us for assistance.
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