Second Hand Vauxhall Agila Fuel Injection Pump

The Vauxhall Agila ran in two generations: the first-generation A ran from 2000 to 2004, and the second-generation B ran from 2004 to 2007, so your question spans a generation boundary. Engine codes can differ across that boundary even where displacement looks the same on paper, so you should not assume the pump from an A will drop straight into a B. Name your exact engine code to the breaker and ask them to cross-reference it against the donor vehicle before buying.

For a mechanical component like a fuel injection pump, the engine code is the single most reliable guide to fitment — far more so than the model year alone. Two Agilas built in the same year could carry different engine codes and therefore need different pumps, while an Agila from a slightly different year with the same engine code is far more likely to be compatible. Your engine code is printed on your V5C or can be confirmed through a VIN check, and it is the first thing a good breaker will ask for.

No — trim level has no bearing on fuel injection pump fitment for the Agila. Expression, Design, and Club are specification packages affecting interior equipment, cloth or upholstery choices, and cosmetic details, not the engine or fuel system. What determines compatibility is your engine code, fuel type, and gearbox type, so give the breaker those details rather than your trim name.

No — diesel and petrol fuel injection pumps are entirely different in design and function and are not interchangeable under any circumstances. Make sure you specify your fuel type clearly when requesting a quote from a breaker, alongside your engine code, so they can source the correct unit from the right donor vehicle.

In most cases the pump itself is the same regardless of whether the car is manual or automatic, but gearbox type can sometimes influence ancillary sensors or mounting arrangements associated with the fuel system. To be safe, tell the breaker your gearbox type as well as your engine code when you request a quote, and let them confirm the exact part number matches your vehicle.

2003 sits in the first-generation Agila A, while 2004 marks the start of the second-generation Agila B, so this question crosses a generation boundary where mechanical specifications can change. Whether a pump from that 2003 car will physically and electronically suit your 2004 vehicle depends on whether both cars share the same engine code — if they do, there is a stronger case for compatibility, but you should confirm this directly with the breaker against your registration before purchasing.