Fuel injector 320/06835 JCB 444, genuine

For the machines with the JCB Dieselmax 444 engine: fuel injector 320/06835, a genuine JCB part.

The injector is chosen by part number for the engine type and version, as injectors that look the same can differ in the number and angle of nozzle holes and in flow. Electronic injectors carry a correction (trim/IMA) code, which is entered into the engine control unit with a service tool when a new injector is fitted; otherwise fuel delivery between cylinders will be uneven. When one injector fails, it is worth testing the others too. Injectors can be checked on a test bench for delivery, leak-off and tightness, and this test also shows whether the injector can be repaired. On electronic injectors the coil resistance is measured too.

Specifications

Compatibility

According to the product card, 320/06835 is a fuel injector. The card also lists B04101A, 320/06528. Fit is confirmed by the part number. The catalogue also has the OEM version of this part. Other parts are in Construction machinery fuel injectors.

Fitting

Before removing the injector, clean around it, disconnect the fuel lines and connector and cap the open connections. Always remove the old copper washer from the well. Fit the new injector with a new washer and O-rings and tighten the clamp and the high-pressure line nut to the specified torque, connecting the high-pressure pipes without strain. After assembly, bleed the fuel system, run the engine and check for leaks, smooth idle and smoke; on electronic systems, enter the injector code.