A critical component of the fuel system – this is an original (OEM) Delphi injection pump. It is designed for JCB 3CX and 4CX machines equipped with the Perkins 1004.4 Turbo AK series engine (older models, approx. pre-2005). This is a precision distributor (rotary) pump responsible for accurately metering and delivering fuel under high pressure directly to the injectors, ensuring optimal combustion, performance, and engine operation.
By choosing GX-OEM parts, you choose uncompromised original equipment quality. Our products are manufactured with the highest precision, guaranteeing a perfect fit and parameters identical to the original. This is the best investment in the long and trouble-free operation of your machine.
| Brand | Type / Series / Model |
|---|---|
| JCB | Backhoe Loaders: 3CX, 4CX (with Perkins 1004.4 Turbo, AK series engine) |
The list above is for reference. It is crucial to match the part number and engine type (Perkins AK).
The injection pump is the most precise component in the engine. It is extremely sensitive to contamination and water. Installation must be performed in sterile conditions. Before installation, you must replace all fuel filters and check the cleanliness of the entire fuel system. Incorrect installation (e.g., wrong injection timing) or contamination will lead to immediate pump seizure and void the warranty.
The injection pump is the "heart" of the fuel system. It is responsible for precisely metering and compressing fuel to the pressure required by the injectors at the correct moment in the engine's cycle. Its failure will immobilize the machine or drastically reduce its power.
📞 Can't find the part you're looking for?
No problem. Our website shows only a few thousand of the over 60,000 parts we have in stock. Contact us – we probably have what you need on the shelf!
Rotary (distributor) pumps, like this Delphi model, replaced older in-line pumps due to their higher precision. They work using several key components:
These are for completely different engine generations. This pump (17/910000) fits the older Perkins 1004.4 (AK series, approx. 1997-2005). The 320/06929 pump fits the newer JCB Dieselmax engines (post-2005). They have different mounts, drives, and operating parameters and are not interchangeable.
2. Why must I replace fuel filters (e.g., REDX filters)?Contaminated or water-filled fuel is the #1 cause of injection pump failure. If the old pump failed (e.g., seized), it is 100% certain that metal debris is in the system. Installing a new pump without flushing the system and replacing all filters will destroy the new pump immediately and void the warranty.
Have doubts or need confirmation to avoid costly downtime? Call us. Our experts will help you choose the right part to get your equipment back to work as soon as possible.
Data sheet
Specific References
Manufacturer
Responsible person
See also similar products








Injection pump suitable for JCB 3CX 4CX - AK engine

















