Mazda C66M-R is a manual gearbox from Mazda. The Society has 11 vehicles on file with it, 11 with a source we opened and 0 still leads.
Mazda
| Vehicle | Years | Shift pattern | Gearbox source | Members |
|---|---|---|---|---|
| Mazda CX-5 KE US 2.0L 6-speed manual [1] | 2013 | 6 speed, reverse top left | Verified | |
| Mazda CX-5 KE US, 2.0 FWD 6-speed [2]Applies to: 2013-2015 CX-5 6 M/T | 2014-2015 | 6 speed, reverse top left | Verified | |
| Mazda MAZDA3 BL / BM 6-speed manual [3]Applies to: 2014 BM Mazda3 SKYACTIV 6-speed | 2010, 2014 | 6 speed, reverse top left | Verified | |
| Mazda Mazda3 BL US, SKYACTIV-G 2.0 6-speed [4]Applies to: 2012-2013 Mazda3 SKYACTIV 6 M/T | 2012 | 6 speed, reverse top left | Verified | |
| Mazda Mazda3 BL US 6-speed manual transaxle [5] | 2013 | 6 speed, reverse top left | Verified | |
| Mazda Mazda3 BM/BN US, 6-speed [6]Applies to: 2014-2015 Mazda3 6 M/T | 2015, 2017-2018 | 6 speed, reverse top left | Verified | |
| Mazda Mazda3 BM/BN US, 6-speed [7]Applies to: 2014-2015 Mazda3 6 M/T (2016 by carry-over) | 2016 | 6 speed, reverse top left | Corroborated | |
| Mazda MAZDA6 GH / GJ 6-speed manual [8]Applies to: 2014 GJ Mazda6 SKYACTIV 6-speed | 2009, 2014 | 6 speed, reverse top left | Verified | |
| Mazda Mazda6 GJ US, 2.5 6-speed [9]Applies to: 2014-2015 Mazda6 6 M/T | 2015 | 6 speed, reverse top left | Verified | |
| Mazda Mazda6 GJ US 2.5L 6-speed manual [10] | 2016 | 6 speed, reverse top left | Corroborated | |
| Mazda Mazda6 GJ US, 2.5 6-speed [11]Applies to: 2014-2015 Mazda6 6 M/T (2017-18 by carry-over) | 2017-2018 | 6 speed, reverse top left | Corroborated |
Research notes
Caveats and conflicts (3)
- OEM service bulletin (NHTSA copy). Code printed as C66M-R, not G66M-R.
- TSB limits to VINs built before Aug 8 2014 for some parts.
- TSB years (2014-15) differ from the 2016 row.
References
- Service manual. Mazda TSB lists 2013-2015 CX-5 (6 M/T) and references the 'C66M-R 6-speed SKYACTIV Manual Transaxle Workshop Manual'. [link]
- Service manual. NHTSA TSB lists 2013-15 CX-5 (6 M/T) and cites the C66M-R workshop manual. [link]
- Service manual. Mazda TSB lists '2014-15 Mazda3 (6 M/T)' and the 'C66M-R 6-speed SKYACTIV Manual Transaxle Workshop Manual'. [link]
- Service manual. NHTSA TSB lists 2012-13 Mazda3 (SKYACTIV 6 M/T) and cites the C66M-R 6-speed manual transaxle workshop manual. [link]
- Service manual. Mazda TSB lists '2012-2013 Mazda3 (SKYACTIV 6 M/T)' with 'C66M-R 6-speed SKYACTIV Manual Transaxle Workshop Manual'. [link]
- Service manual. NHTSA TSB lists 2014-15 Mazda3 (6 M/T) and cites the C66M-R workshop manual (2015 only; 2017-18 by carry-over). [link]
- Service manual. NHTSA TSB covers 2012-15 Mazda3 only; 2016 not named. [link]
- Service manual. Mazda TSB lists 2014-2015 Mazda6 (6 M/T) with C66M-R SKYACTIV Manual Transaxle Workshop Manual. [link]
- Service manual. NHTSA TSB lists 2014-15 Mazda6 (6 M/T) and cites the C66M-R workshop manual. [link]
- Service manual. Mazda TSB lists 2014-2015 Mazda6 (6 M/T) with C66M-R SKYACTIV Manual Transaxle Workshop Manual. [link]
- Service manual. NHTSA TSB covers 2014-15 only. [link]
Categories: Gearboxes | Mazda
This page was last edited on November 11, 2026. Gearbox codes change by year, engine and market. Send a correction.