CAT C7 C9 HEUI Injector Solenoid Spool Valve Poppet Valve

This comprehensive range of HEUI Injector Components is engineered specifically for the remanufacturing and repair of Caterpillar C7 and C9 diesel engines. The HEUI (Hydraulically Actuated Electronic Unit Injection) system relies on the precise coordination of hydraulic oil and fuel pressure, making the quality of internal components critical for engine performance.

Our inventory covers the most essential wear parts required for a complete injector rebuild:

• Solenoid Valve: High-response electromagnetic actuators to ensure precise injection timing.

• Oil Control Valve (Spool Valve): Precision-ground slide valves that effectively manage high-pressure oil flow, resolving common starting issues caused by wear.

• Diesel Valve (Poppet Valve): Ensures tight sealing and accurate fuel control within the injector body.

• Injector Nozzle: Manufactured with high-grade alloy to withstand extreme heat and pressure, ensuring optimal fuel atomization and combustion efficiency.

Whether you are fixing a single failed injector or performing a fleet-wide overhaul, these components meet OEM specifications for fit and finish, helping to eliminate black smoke, rough idling, and power loss in CAT excavators and trucks.

• Precision Engineering: The Spool Valves feature micro-tolerance grinding to prevent oil bypass and ensure smooth hydraulic actuation.

• Heat Resistance: Solenoids and Nozzles are built with high-temperature resistant materials to withstand the harsh environment of heavy-duty engines.

• Restored Performance: Replacing worn internal valves and nozzles directly addresses common C7/C9 issues like hard starting and lack of power.

• Exact Fit: Designed as direct replacements for standard CAT C7 and C9 HEUI injector internals, ensuring easy installation for technicians.

• Cost-Effective: Offers a high-quality alternative to purchasing entirely new injector assemblies.