Specific-ation Item

Detailed Parameter

Part Number

107-7733 (c-at OEM Equivalent Direct Replacement)

Compatible Engine Series

c-aterpillar 3116 Diesel Engine (Exclusive Precision Fit)

Injector Type

Mechanical Unit Injector (MUI), Pencil Type Heavy-Duty Fuel Injector

Premium Material

High-strength quenched & tempered alloy steel body, precision-ground plunger & barrel assembly, hardened wear-resistant needle valve, high-temperature & corrosion-resistant internal seals

Working Pressure Range

40-120MPa (Strict OEM Calibration, Stable Pressure Output)

Net Weight

0.54kg / 1.19lbs

Product Condition

Brand New, OEM Standard, Non-Genuine c-at Replacement Part

Quality Certific-ation

ISO 9001 Certified, 100% End-of-Line Performance Tested

Applic-ation Fuel

Low-sulfur diesel, standard heavy-duty on/off-highway diesel fuel

Applic-ation Scenario

Compatible Equipment Models

Cross Reference Part Numbers

Construction Machinery

c-at 3116 Engine Excavators, Wheel Loaders, Bulldozers, Motor Graders, Road Compactors

1077733, 107-7732, 107-1230, 105-1694

Industrial Power

3116 Engine-driven Generators, Water Pumps, Air Compressors, Fixed Industrial Power Units

7E-9585, 0R-3742, 4P-2995

Marine & Mining Vehicles

Marine Auxiliary Engines, Off-highway Mining Trucks, Engineering Support Vehicles with 3116 Engine

127-8216, 8N-7005, 160-1694

Feature c-ategory

Detailed Advantage Description

Precision Fuel Injection & Full Combustion

Adopts high-precision CNC machining and grinding technology, with internal matching clearance strictly controlled within 1-2μm, ensuring consistent fuel injection volume and accurate timing synchronization with engine operation. It forms an optimized conical fog spray pattern, realizing full and sufficient fuel combustion, reducing fuel consumption by up to 8-10% and effectively eliminating black smoke, white smoke and abnormal exhaust emissions, fully restoring engine rated power and torque output under heavy load.

Extraordinary Durability & Wear Resistance

Forged from high-strength heat-treated alloy steel with double surface hardening and professional anti-corrosion coating treatment, resistant to long-term diesel corrosion, high-pressure fuel impact and continuous mechanical friction wear. Designed to withstand more than 1.3 million injection cycles under heavy load, greatly extending service life, reducing the cost of frequent replacement and avoiding unexpected equipment shutdown losses.

Direct OEM Fit & Hassle-Free Installation

Manufactured 1:1 according to original c-at 3116 engine dimensions, interface standards and installation torque parameters, realizing true plug-and-play installation without any modific-ation, regrinding or later calibration. It perfectly matches the original engine fuel rail and mounting position, completely avoiding installation errors, compatibility problems and subsequent engine performance abnormalities.

Rigorous Full-Spectrum Pre-Shipment Testing

Each 107-7733 injector undergoes 6 strict professional quality tests before leaving the factory: spray pattern uniformity test, static leakage test, dynamic pressure stability test, fuel delivery accuracy test, high-temperature durability simulation test and anti-vibration test. 100% qualified before shipment, ensuring stable and reliable performance right out of the box.

Harsh Environment Adaptability

Specially optimized for harsh working conditions, suitable for long-term stable operation in high-temperature construction sites, dusty mines, humid marine environments and remote industrial areas. It maintains stable injection performance under variable load fluctuations, effectively preventing engine misfiring, rough idle and sudden failures during heavy-duty operation.