Vauxhall Insignia Fuel Pump: Specs, Fitment & Common Faults

On the Insignia, listening for the pump's priming whine is a genuine, simple way to confirm where a fuel delivery fault actually sits.

Illustration for editorial purposes

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Vauxhall Insignia Fuel Pump: OEM Part Number

Accuracy note: genuinely worth knowing: high-mileage Insignias often show early fuel pump wear as intermittent problems — starting fine most days but occasionally cranking longer than usual — rather than a sudden, total failure, which can make the root cause easy to misdiagnose as something else.

A Genuine Diagnostic Test Worth Trying First — Vauxhall Insignia Fuel Pump

Before assuming the fuel pump itself has failed, it's worth trying a simple, genuinely useful check: with the ignition turned to "on" but the engine not yet started, you should hear a brief whine from the direction of the fuel tank as the pump primes the system. If you hear nothing, the fault is more likely to be the pump itself, its fuse, or its relay — all worth checking before assuming a full pump replacement is needed, since a blown fuse or failed relay is a considerably cheaper fix.

If your car is diesel-engined: there are genuinely two separate pumps working together — a lower-pressure lift pump inside the tank, and a high-pressure pump on the engine itself, driven by the timing belt or camshaft. A fault can originate in either, and the priming-whine test above specifically checks the in-tank lift pump — a car that primes normally but still won't start or runs rough under load points toward the engine-mounted high-pressure pump instead.

Vauxhall Insignia Fuel Pump: A Part That Fails at the Worst Possible Moments

On the Vauxhall Insignia, there's rarely a convenient time for this to fail — it tends to strike mid-journey rather than while the car's sitting safely on the drive. Knowing what the early symptoms look like buys valuable time to get ahead of it.

Before you buy: fuel pump specifications vary by engine size and fuel type, and petrol/diesel versions are never interchangeable. Always confirm against your VIN before ordering.

Vauxhall Insignia Fuel Pump reference plate

Vauxhall Insignia Fuel Pump: What It Does

The job here is simple in principle — draw fuel from the tank, deliver it to the engine at the right pressure — but the Vauxhall Insignia's fuel pump sits submerged inside the tank, which makes physical access for replacement far more involved than the small part itself implies.

Vauxhall Insignia Fuel Pump: Generations & Engines: Fuel Pump Type

Accuracy note: these are documented patterns by generation and engine family, not a substitute for confirming your exact engine code — always verify against your V5C before ordering, since petrol and diesel pumps are never interchangeable.

Insignia A (2008–2017), 1.4/1.6/1.8 petrol	Petrol: typically a single in-tank low-pressure pump; some later or higher-output variants may add a separate engine-mounted high-pressure pump for direct injection — confirm your exact engine
Insignia A (2008–2017), standard 2.0 CDTi (A20DT/A20DTH, 130-163hp)	Diesel: in-tank lift pump feeds a separate engine-mounted high-pressure injection pump (common rail) — never interchangeable with the petrol pump
Insignia A (2008–2017), higher-power 2.0 Biturbo CDTi (B20DTH, 170-195hp)	Diesel: in-tank lift pump feeds a separate engine-mounted high-pressure injection pump (common rail) — never interchangeable with the petrol pump
Insignia A VXR (2009–2013), 2.8 V6 turbo petrol	Petrol: typically a single in-tank low-pressure pump; some later or higher-output variants may add a separate engine-mounted high-pressure pump for direct injection — confirm your exact engine
Insignia B (2017–2022), petrol & standard diesel	Spans both diesel (in-tank lift pump plus an engine-mounted high-pressure pump) and petrol (in-tank low-pressure pump, plus a separate high-pressure pump if direct-injection) variants — confirm your exact engine before ordering
Insignia B GSi (2018–2021), 2.0 Biturbo CDTi diesel	Diesel: in-tank lift pump feeds a separate engine-mounted high-pressure injection pump (common rail) — never interchangeable with the petrol pump

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Vauxhall Insignia Fuel Pump: Warning Signs, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Fuel Pump Guide for symptoms to watch for (including the low-pressure vs high-pressure distinction on direct-injection engines), confirming fitment against your VIN, and OE suppliers worth knowing.

More Vauxhall Fuel Pump

The same part, covered across other Vauxhall models.