G4-81 HEUI C7 C9 Diesel Injector Control Valve Test Kit

The G4-81 HEUI Control Valve Test Kit is a diagnostic solution for Caterpillar C7 and C9 engines. The most common failure point in these injectors is the oil control valve (spool valve). This kit allows technicians to isolate and test this valve's sealing and movement.

• Features & Advantages:

• Targeted Diagnostics: Tests the oil side of the injector specifically, saving time on misdiagnosis.

• Seal Integrity: Checks for internal high-pressure oil leaks that cause "hot start" issues.

• Application Scenarios: Troubleshooting CAT excavators or trucks with low actuation pressure codes.

• FAQ:

• Q: Does this test the fuel nozzle? A: No, this is specifically for the oil actuation control valve.