Mazda CX-5 Fuel Pump: Specs, Fitment & Common Faults

On the CX-5, a genuine, serious UK safety recall (R/2021/435) covers a fuel pump impeller that can crack and cause stalling.

Illustration for editorial purposes

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Mazda CX-5 Fuel Pump: OEM Part Number

Accuracy note: genuinely worth knowing: CX-5 fuel pump part numbers vary by fuel type (petrol vs diesel) and sometimes by market, since fuel delivery pressure requirements differ — a pump correct for a diesel CX-5 will not work on the petrol equivalent even where other parts are shared.

Confirmed: A Genuine, Serious UK Safety Recall Worth Checking Your VIN Against — Mazda CX-5 Fuel Pump

This is genuinely worth checking directly against your specific car: Mazda issued a UK safety recall (reference R/2021/435) covering models manufactured between October 2017 and September 2019, for a genuine fault in the low-pressure fuel pump manufactured by Denso — the plastic impeller inside can crack and deform, potentially causing the pump to fail and the engine to stall while driving or fail to start. Around 27,000 UK-registered vehicles were covered, with the fix being a full replacement pump fitted free of charge.

A genuinely useful, real diagnostic point worth knowing: a pre-failure pump can produce intermittent stalling that a basic roadside pressure test doesn't catch — one documented case saw a breakdown recovery service find no fault via pressure testing, despite the car repeatedly cutting out, with the recall replacement ultimately resolving it completely.

It's also genuinely worth knowing that dealers commonly ask that the fuel tank be no more than a quarter full before the appointment, and that some documented cases saw a noticeable amount of fuel go missing during the process. An evaporative emissions fault code appearing shortly after this specific recall work has also been documented in some cases.

Mazda CX-5 Fuel Pump: A Part That Fails at the Worst Possible Moments

On the Mazda CX-5, 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.

Mazda CX-5 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 Mazda CX-5's fuel pump sits submerged inside the tank, which makes physical access for replacement far more involved than the small part itself implies.

Mazda CX-5 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.

KE (2012–2016), SkyActiv-G petrol & SkyActiv-D 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
KF (2017–present), SkyActiv-G petrol & SkyActiv-D 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

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Mazda CX-5 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 Mazda Fuel Pump

The same part, covered across other Mazda models.