Clutch master and slave cylinders
The clutch is hydraulic, and the slave cylinder is the part sellers say fails first. This page lists the master and slave cylinder sets sold for each generation, and what the sellers say about them. It is not a repair guide.
How to read it. Every claim is the seller's, as read on its own page on 1 October 2026. This page carries no prices, which go stale; the seller's page has the current one, and whether it is in stock. Nothing here was bought or tested.
NA and NB (1990-2005)
| Seller | What it offers | Notes (as stated) |
|---|---|---|
| Treasure Coast Miata (Florida) | kit: Exedy slave cylinder, braided stainless extended-length clutch line and Exedy master cylinder; optional Red Line DOT 4 fluid and a full-length stainless line; the parts are also sold singly | calls the slave "your Miata's fastest failing part". Fits 1990-2005, but says the master will not work on a 2004-05 Mazdaspeed unless it is used with the full-length clutch lines |
| Flyin' Miata | master cylinder alone, "from an OEM supplier"; the brand varies with supply | NA and NB, excluding Mazdaspeed, left-hand drive only; one-year warranty. It says slaves fail more often but masters can also deteriorate, and recommends replacing both together |
NC (2006-2015)
| Seller | What it offers | Notes (as stated) |
|---|---|---|
| RSpeed | kit: OEM master cylinder, OEM slave cylinder and 8 oz of DOT 4 fluid (brand varies) | 2006-2015; "designed to OEM specifications"; one-year warranty |
Named in search results, not opened
Exedy master and slave cylinders at Good-Win Racing (its pages are behind a bot check I do not pass), a master and slave kit at Mike's Miata Parts, and a Wilwood master cylinder kit for the NA and NB at K-Power. I did not open any of them.
Not covered yet
- An NC slave or master sold on its own, with the seller's fit notes.
- Clutch discs and pressure plates, which are a separate topic.
- Owner experience: the Miata.net threads on this are behind the bot check, so I have read none.
© 2026 Fischer Interactive LLC. Written for the Ref Sensor app's Miata users. The seller's page is the authority.