Used Mazda CX-30 Clutch Master Cylinder

Only manual gearbox variants of the CX-30 have a clutch master cylinder — if your CX-30 has an automatic gearbox, this part simply does not exist on your car. The CX-30 was sold in the UK with both manual and automatic options depending on engine and trim, so check your V5 or a VIN check to confirm your gearbox type before searching. If you have an automatic, what you may actually be looking for is a brake master cylinder or a gearbox-related hydraulic component — worth confirming with a breaker what your symptom points to.

The Mazda CX-30 launched in the UK in 2019 and has run as a single generation through to the current day, with no full model change in that period, so on paper a 2020 and a 2022 are the same generation. However, the most important thing to match is the engine code, not the year — a 2.0 Skyactiv-G manual and a 1.8 Skyactiv-D manual are different engines and will not necessarily share the same clutch master cylinder. Confirm the exact engine code from your V5 and supply it to the breaker to verify interchange before purchasing.

Trim level does not affect clutch master cylinder fitment — this is a mechanical part that follows the engine and gearbox, not the badge or specification level. A GT Sport and an SE-L with the same engine code and manual gearbox will use the same part. Bear in mind that a used part pulled from a higher trim car may carry different ancillary brackets or sensors, so confirm the exact configuration with the breaker against your registration.

Engine code matters more than year for a clutch master cylinder — the CX-30 was available with different engines including the 2.0 Skyactiv-G petrol and the 1.8 Skyactiv-D diesel, and these are fundamentally different drivetrain setups. Matching by year alone risks getting a part designed for a different engine family, which may not fit correctly. Your engine code is printed on your V5 logbook or can be obtained via a VIN check, and supplying it to the breaker is the single most useful thing you can do.

It is possible that some components are shared across Mazda's Skyactiv platform, but cross-model interchange is not something that can be confirmed as fact here — the mounting, reservoir positioning, and hydraulic sizing can differ even between cars sharing an engine family. Supply your CX-30's exact engine code and registration to the breaker and ask them to check compatibility directly against the donor vehicle before agreeing a sale. Do not assume platform sharing means the part is a straight swap.

No — a clutch master cylinder is part of the hydraulic clutch system and only exists on manual gearbox vehicles. If your CX-30 is an automatic, it has no clutch pedal and no clutch master cylinder. If you are experiencing a fluid leak or pedal issue, the relevant part on an automatic CX-30 is more likely the brake master cylinder, and a breaker or mechanic can help identify the correct component for your fault.