Cheap Mercedes-Benz SLK Clutch Slave Cylinder

Only some SLK variants have a clutch slave cylinder — specifically those fitted with a manual gearbox, which applies to certain petrol engine variants across the R170, R171, and R172 generations. SLK models equipped with the automatic or the AMG Speedshift gearbox have no clutch slave cylinder at all, so if your car has an automatic you will not find this part. Check your V5 or a VIN check to confirm whether your SLK has a manual gearbox before searching.

The R170 and R171 are entirely separate generations with different engines, gearbox assemblies, and hydraulic clutch layouts, so the clutch slave cylinder is very unlikely to interchange between them. The engine code on your V5 is the most useful detail to supply to a breaker, as fitment follows the engine and gearbox combination rather than the generation badge alone. Confirm compatibility against your registration with the breaker before ordering.

Within the R171 generation (2004–2011) the engine code is the most critical factor — a cylinder from an engine with the same code is your strongest starting point. There were running production changes across the R171's life that could affect ancillary and mounting details, so confirm against your specific registration with the breaker rather than assuming any R171 unit will drop straight in. Supplying your engine code alongside your registration number will give the breaker the best chance of finding the right part.

The trim or badge name itself does not determine fitment — what matters is the engine code underneath, which is what the breaker will use to identify the correct part. An SLK 200 and an SLK 250 with different engine codes will need different cylinders even though both badges sound similar, while two cars sharing the same engine code should take the same part regardless of the trim name on the boot lid. Always lead with your engine code and gearbox type when contacting a breaker.

The R172 generation ran from 2011 to 2020 and brought new engine families compared to the R171, making a direct swap between generations unlikely. Even where an engine family continued across the generation boundary, ancillary components and hydraulic line fittings can change mid-production, so crossing that 2011 boundary is something to confirm with the breaker against both registrations. The engine code from the V5 is the single most useful detail to supply.

The engine code matters above everything else — clutch hydraulics are matched to the gearbox and engine assembly, and different engine codes can use different cylinder dimensions or hydraulic fittings even within the same SLK generation. Fuel type is also relevant, as diesel and petrol variants of the same generation can differ in their drivetrain components. Give your breaker your engine code, fuel type, and gearbox type alongside your registration to get the most accurate match.