79-80 12A Engine Numbers
These are the Part Numbers for 79-80 12A Engines. These are just the majority of the ones we list. We are able to "build" about any combination possible with our computer -- just give us specific requests, and we can come up with a pretty exact estimate of the cost.
The "Build Level" chart is at the bottom of the page
Note: Core supply is variable, please call prior to ordering your engine.
For 79-80 12A engines the cost of a full gasket set is included in the price of the engine. We use the gaskets/seals needed to assemble the engine, and send the remaining ones with the engine - that way you have essentially all the gaskets needed to finish the installation.
IMPORTANT NOTE!!
As of 4/03, Mazda no longer sells the front rotor housing for any engine prior to 1981!! This means that the "C" through "F" engines will have to be built with 81-83 rotor housings. This combination will NOT pass an emissions test in any state!
| 79 All, or '80 (49-state) Federal 12A | |
| Part Number | Description |
| MZTX-12-1A00 | "A" Level |
| MZTX-12-1B00 | "B" Level |
| MZTX-12-1C00 | "C" Level (See note above) |
| MZTX-12-1E00 | "E" Level (See note above) |
| MZTX-12-1F00 | "F" Level (See note above) |
| Click here for Explanation / Cost / Images of Street Porting | |
| Click here for 13B 4-Port Street Ported "bolt-in" engine packages for 79-80 12A chassis. | |
| Engine related services such as balancing can be found here. | |
| '80 California EGR 12A | |
| Part Number | Description |
| MZTX-12-2A00 | "A" Level |
| MZTX-12-2B00 | "B" Level |
| MZTX-12-2C00 | "C" Level (See note above) |
| MZTX-12-2E00 | "E" Level (See note above) |
| MZTX-12-2F00 | "F" Level (See note above) |
| Click here for Explanation / Cost / Images of Street Porting | |
| Click here for 13B 4-Port Street Ported "bolt-in" engine packages for 79-80 12A chassis. | |
| Engine related services such as balancing can be found here. | |
Note: ALL Engines have NEW Apex Seals, NEW Oil Control Rings, NEW Corner Seals, New Side Seals, ALL Springs are NEW, All Gaskets and "O"-Rings are NEW, with NEW Front and Rear Seals.
| Parts | Build Level / Parts Chart | ||||
| A | B | C | E | F | |
| New Rotor Housings | No | Yes | Yes | Yes | Yes |
| New Rotors | No | No | Yes | Yes | Yes |
| New Stationary Gears | No | No | No | Yes | Yes |
| New Large Oil Pump and Chain | No | No | No | Yes | Yes |
| New Eccentric Shaft | No | No | No | Yes | Yes |
| New Side Housings | No | No | No | No | Yes |
| Used Parts | A | B | C | E | F |
| Lapped Side Housings | Yes | Yes | Yes | Yes | New |
| Used Rotor Housings | Yes | New | New | New | New |
| Used Rotors | Yes | Yes | New | New | New |
| Used Stationary Gears | Yes | Yes | Yes | New | New |
| Used Eccentric Shaft | Yes | Yes | Yes | New | New |
| Used Oil Pump and Chain | Yes | Yes | Yes | New | New |