What engine do I have? Get to know the different variations of MR2 engines below

The Toyota 3SGTE engine was produced from 1986 to 2007 and was used in various Toyota models, including the MR2, Celica, and Caldina. It was based on the non-turbo 3SGE engine, but with a turbocharger, lower compression ratio, and under-piston oil squirters.

Production years:

1986–1988: GEN1 3SGTE engine was produced in both Japan and North America - used in the Celica alltrac (ST165)

1990–1995 USDM, 1990-1993 JDM: GEN2 3SGTE engine was used in the Celica GT-Four (ST185) and USDM MR2 (SW20)

1994–1999: GEN3 3SGTE engine was used in the Celica GT-Four (ST205) and MR2 (SW20)

1998–2007: GEN4 3SGTE engine was used in the Caldina GT-T (ST215W) and GEN5 3SGTE in the Caldina GT-Four (ST246W)

Features:
- Cast Iron Block with Aluminum alloy cylinder head and pistons
- 16-valve dual overhead cam (DOHC) cylinder head
- Single-timing belt drives the exhaust, intake camshaft, water, and oil pumps
- Pistons have an indentation to prevent them from hitting the valves if the timing belt breaks (non-interference engine)

This engine is exclusive to the 1987-1988 Celica Alltrac ST165 only. There were not many made and most parts are exclusive to the Gen1 3SGTE. This notably has a 6-bolt flywheel and parts only designed for the Celica. If you are searching for parts for this engine, I'd recommend checking ebay or the facebook part out groups. Prime MR2 does not have any parts available for this platform. Stock Horsepower is 185

Seen above is the Gen2 3SGTE from the USA version of the 1991-1992 Toyota MR2 Turbo. This engine features: Air Flow Meter attached to intake piping, thick 9mm spark plug wires with "push on rubber connectors" to the distributor cap, "twin entry turbo" badge on intake manifold, EGR pipe on left side of head, cylindrical shaped 1 piece throttle body inlet, most sensor connectors are open spade style vs plastic weatherpack connectors. Stock Horsepower is 200

Seen above is the Gen2 3SGTE from the JDM version of the 1989-1991 Toyota MR2 Turbo. This engine features: Air Flow Meter attached to intake piping, thick 9mm spark plug wires with "push on rubber connectors" to the distributor cap, "ceramics power twin entry turbo" badge on intake manifold, NO EGR pipe on left side of head, cylindrical shaped 1 piece throttle body inlet, most sensor connectors are open spade style vs plastic weatherpack connectors, single wire oxygen sensor. Stock Horsepower is 200

Seen above is the Gen2 3SGTE from the USA version of the 1993-1995 Toyota MR2 Turbo. This engine features: Air Flow Meter attached to intake piping, thin 7mm spark plug wires with "clip on plastic connectors" to the distributor cap, "twin entry turbo" badge on intake manifold, EGR pipe on left side of head, 2-piece throttle body inlet, most sensor connectors are plastic weatherpack connectors vs open spade style of the earlier gens. Stock Horsepower is 200

Seen above is the Gen2 3SGTE from the JDM version of the 1992-1993 Toyota MR2 Turbo. This engine features: Air Flow Meter attached to intake piping, thin 7mm spark plug wires with "clip on plastic connectors" to the distributor cap, "ceramics power twin entry turbo" badge on intake manifold, No EGR pipe on left side of head but instead a metal brace, 2-piece throttle body inlet, most sensor connectors are plastic weatherpack connectors vs open spade style of the earlier gens, single wire oxygen sensor. Stock Horsepower is 225

Seen above is the Gen3 3SGTE from the JDM version of the 1994-1999 Toyota MR2 Turbo. This engine features: No Air Flow Meter (map sensor based), factory catch can on left side of valve cover, revised smoother rounder intake manifold, pcv valve on right side of valve cover, thin 7mm spark plug wires with "clip on plastic connectors" to the distributor cap, No EGR pipe on left side of head. This engine also has 550cc injectors compared to the 440cc of the Gen2 engine. Turbo is upgraded to the CT20 over the stock CT26 on the Gen2 engines. Stock Horsepower is 240

Seen above is the Gen3 3SGTE from the JDM version of the 1994-1999 Toyota Celica GT Four. This engine is the same as the MR2 variant with the exception of the accesorry placement and Air to Water Intercooler. Features: No Air Flow Meter (map sensor based), factory catch can on left side of valve cover, revised smoother rounder intake manifold, pcv valve on right side of valve cover, thin 7mm spark plug wires with "clip on plastic connectors" to the distributor cap, No EGR pipe on left side of head. This engine also has 550cc injectors compared to the 440cc of the Gen2 engine. Turbo is upgraded to the CT20 over the stock CT26 on the Gen2 engines. Stock Horsepower is 240

Seen above is the Gen4 3SGTE from the JDM 1998-2002 Toyota Caldina GTT (ST215). This engine has all the upgrades from the previous generations and is what put PRIME MR2 on the map circa 2012 as the go-to source for Gen4 swaps. Many upgrades but not limited to: side feed intake manifold, top feed fuel injectors, modern ecu, coil packs instead of distributor, integrated turbo/manifold... Pictured above is how it looks in the Caldina and to the right is typical install into a 91-99 MR2. This is the most identifiable 3SGTE due to its the only one with a side feed intake manifold. Its also the best looking and easiest to wire and plumb Turbo is upgraded to the CT15. Stock Horsepower is 260

Seen above is the Gen5 3SGTE from the JDM 2002-2007 Toyota Caldina GTT (ST246). This engine is nearly identical to the Gen4 with just a few exceptions. Toyota went back to the center feed intake manifold and catch can, Also included are new style top feed fuel injectors, modern ecu, coil packs instead of distributor, integrated turbo/manifold... Pictured above is how it looks in the Caldina and to the right is typical install into a 91-99 MR2. This is the most identifiable 3SGTE due to its the only one with a center feed intake manifold, catch can on left side of valve cover, pcv pointing towards right side of timing cover, plastic topped coil packs, loads of wiring on top of valve cover to coils and sensors bolted to intake manifold. Turbo is same as gen4 - the CT15. Stock Horsepower is 260

Seen above is the 2.2L 5SFE engine from the USDM 1991-1992 MR2 non-turbo. This engine is identifiable by its round spark plug wires and rounder intake manifold. Stock Horsepower is 130

Seen above is the 2.2L 5SFE engine from the USDM 1993-1995 MR2 non-turbo. This engine is identifiable by its square spark plug wires and squared off intake manifold. Stock Horsepower is 130

The base model SW20 MR2 available in the UK and Japan had the 3SGE engine. These were GEN2 3SGE and GEN2.5 3SGE from years 89-91 and 92-93. This GEN3 3SGE was available from 94-97 JDM or 94-99 for UK and Europe. Prime MR2 does not have much support for these engines as they were not available in the USA - however we can get most replacement parts. Please email us for a part quote request.