249-0708 New Fuel Injector 2490708 10r-2977 for Cater-pillar C11 C13 Diesel

This high-pressure electro-hydraulic unit injection valve assembly (standard part code: 249-0708 / 2490708, common cross-references and OE interchangeable identification numbers include 10R-7222, 10R7222, 222-5961, 2225961, 222-5959, etc.) is specially manufactured for heavy-duty construction machinery, large-tonnage operating facilities, and industrial diesel power platforms (such as the C7 series 7.2L inline six-cylinder diesel engine, commonly equipped in 324D, 325D, 329D tracked excavators, 950H, 962H wheel loaders, and 140K graders, etc.). As a key actuator of the HEUI system, it is responsible for accurately metering high-pressure diesel fuel and rapidly dispersing it into ultra-fine atomized particles within microseconds, promoting thorough mixing of fuel and intake airflow to achieve efficient and complete combustion and powerful power release.

The product adheres to the manufacturing standards of "high-pressure resistant particle refinement and millisecond-fast response." The internal needle valve assembly and armature control valve core are made from carefully selected aerospace-grade quenched special alloy steel, combined with ultra-high precision geometric grinding and low-friction polishing. The surface is covered with a high-density, anti-coking hardened coating, effectively preventing early erosion caused by diesel impurities. After replacement and installation, equipment operators and on-site maintenance personnel will experience a significant performance improvement: crisp and rapid start-up, with severe vibrations at low idle speeds subsiding and leveling out; under heavy-load tunneling, steep slope climbing, or high-intensity continuous operation conditions, the control handle and pedal feedback are firm and smooth, acceleration is rapid and powerful, while significantly reducing black smoke from exhaust, resulting in a satisfactory overall fuel consumption control experience.

Mining and Heavy Excavation Operations: Large tracked excavators continuously excavate and load large rocks in harsh, high-dust, and high-load environments, requiring extremely high stability in fuel supply and explosive power. When operators notice a decrease in digging force, severe idling vibration, or black smoke from the exhaust pipe, maintenance personnel promptly replace the fuel injector with this high-precision model. After replacement, fuel injection atomization is extremely uniform, and the hydraulic system's power output is restored to ample and stable levels, ensuring efficient progress in mining operations.

Continuous Working Conditions in Road Infrastructure and Gradement: Graders and bulldozers require engines to maintain stable low-speed, high-torque output for extended periods during road infrastructure operations. When equipment experiences starting difficulties, sluggish acceleration, or abnormally high fuel consumption, the maintenance team will replace the entire fuel supply system. Precise electronic injection control restores smooth engine operation, significantly improving fuel efficiency and acceleration response, avoiding downtime costs.