List Of Toyota Engines
Toyota Motor Corporation has produced a wide variety of automobile engines. The company follows a simple naming system for their modern engines:
- The first numeric characters specify the engine block's generation
- The next one or two letters specify the engine family
- The suffix (separated by a dash) specifies the features of the engine:
| Suffix | Feature |
|---|---|
| A | Valvematic variable lift intake head |
| B | Twin SU-style side-draft carburetors After 2000 indicates E85 Ethanol fuel. |
| C | Carburated / California Emissions Controlled |
| D | Twin Downdraft carburetors |
| E | Electronic Fuel injection |
| F | Economy narrow-angle valve DOHC |
| G | Performance wide-angle valve DOHC |
| H | High compression High pressure charged (example: 2L-THE) |
| I | Single-point fuel injection |
| J | Autochoke (Early models) or unknown pollution control |
| L | Transverse |
| M | Philippines' market (meaning unknown) |
| N | CNG fuel |
| P | LPG fuel |
| R | Low Compression (For 87 and below octane fuel) |
| S | Swirl intake (1980s) |
| SE | D-4 Gasoline Direct Injection (1990s) |
| T | Turbocharged |
| U | With Catalytic converter Japan-spec emissions |
| V | Common Rail Diesel Injection (D-4D) |
| X | Atkinson cycle (typically also indicates a Hybrid engine, as Toyota only uses the Atkinson cycle with hybrids) |
| Z | Supercharged |
Note: Other manufacturers may modify the engine after it has left the Toyota factory but the engine still keeps the original Toyota designation. For example, Lotus added a supercharger to the 2ZZ-GE in some versions of the Lotus Elise and Exige but it is still labelled 2ZZ-GE, not 2ZZ-GZE.
For Example
- 4A-GE
4 - 4th generation engine in the A engine family
A - The Engine Family it is in
G - Wide-angle dual camshaft
E - Electronically Fuel Injected
- 22R-TEC
22 - 22nd Generation Engine In The R Engine Family
R - The Engine Family it is in
T - Turbocharged
E - Electronically Fuel Injected
C - California Emission Controlled
The use of "G" to denote twin cam engines was decided on in 1971, with the renaming of the 10R into 8R-G. Before, twin cams had received new numerical codes.
- Note: Toyota, in 1987, began assigning dual letter engine codes to some of the "engine family" categories in some engine lines, particularly six cylinder models. This can create potential confusion. E.g. 1MZ-FE - This is not a supercharged, narrow angle, fuel injected M-series engine, but a narrow angle, fuel injected MZ-series engine. Confusion is easiest to avoid when using the dash to separate between the engine series and its own characteristics: for instance, 1MZ-FE rather than 1M-ZFE.
Read more about List Of Toyota Engines: Diesel
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