891814-3126 Diesel Injector Repair Kit for 3126 small-tip

The 891814-3126 is a Rayfuel aftermarket diesel injector repair kit for selected 3126 small-tip injector applications. It is intended for workshop servicing after the injector reference and the components in the photographed kit have been checked against the unit being repaired.

Application and identification

Use 891814-3126 as the primary ordering reference. The phrase “3126 small-tip” describes the intended injector family, but it does not replace a physical comparison. Before ordering, read the number from the original injector, confirm the engine arrangement where available, and compare the tip style, seal positions, small hardware, and the number of pieces shown in the product photographs.

What the listing includes

One repair kit is supplied. The kit consists only of the service components shown in the product images. Depending on the photographed set, these may include O-rings, sealing rings, washers, gaskets, springs, pins, plugs, screws, or other small parts used during injector service. A complete injector, pump, tool, or test fixture shown for identification is not included unless it is specifically pictured as part of the supplied kit.

Checks before installation

Lay the removed components out in order and compare them with the replacement pieces before assembly. Check that seal diameters, washer thicknesses, spring lengths, grooves, and mating surfaces agree with the original parts. Do not force a component that differs in shape or size. If the injector body, nozzle, valve, plunger, electrical section, or threads are worn or damaged, a seal kit alone may not correct the fault.

Workshop handling

Diesel injection components require a clean working area. Keep the kit sealed until the injector has been cleaned and is ready for assembly. Use suitable lint-free materials, clean diesel-service tools, and the tightening and calibration procedure specified for the engine and injector version. Final leak, return-flow, and operating checks should be completed by a qualified diesel fuel-system technician using appropriate test equipment.

Ordering support

If the original marking is incomplete or the injector has been rebuilt before, send Rayfuel a clear photo of the full injector, the marked number, the connector and tip, plus the engine or equipment details. We can compare those details with the listing before shipment. For confirmation, use the Rayfuel contact page and include 891814-3126 in the message.