Toyota 3.0L 6-cylinder

Toyota 3.0L 6-cylinder — every model and year that used this engine (13 models, 1986–present), based on NHTSA VIN build data, with links to prices and reliability.

3.0L · 6 cylinders · seen in 13 models, 1986–2026

By the numbers

Output range 116–382 hp (median 184 hp). Gasoline: 100%. Based on 318 decoded NHTSA VIN build sheets.

About this engine family

The Toyota MZ engine family is a piston V6 engine series. It was the successor to the previous VZ engine family, and was Toyota's second V6 engine series. It is a lightweight V6 engine of an all-aluminium design, using lightweight parts than the previous heavy-duty VZ block engines in an effort to lower production costs and decrease engine and reciprocating weight without sacrificing reliability.

In detail

The 1MZ-FE is a dual overhead cam (DOHC) V6 engine, replacing the 3VZ-FE as the standard 3.0 L V6 engine in North America and later worldwide. Bore and stroke is . Output is at 5,200–5,400 rpm with of torque at 4,400 rpm. Horsepower ratings dropped after the Society of Automotive Engineers (SAE) implemented a new power measurement system for vehicle engines; Toyota engines rated on 87 octane dropped the most, compared to the same engines used by Lexus rated on 91octane.

It has bucket tappets and was designed for good fuel economy of city and highway without an overall performance trade-off. Toyota Racing Development offered a factory supported bolt-on supercharger kit for the MY1997–2000 Camry, MY1998–2000 Sienna and MY1999–2000 Solara in North America. Power output was bumped to and of torque. The 1MZ-FE was on Ward's 10 Best Engines list for 1996. Applications: 1994–2002 Toyota Camry (V6) 2002–2006 Toyota Camry (MCV36R) (Australian/New Zealand domestic market) 1994–2003 Lexus ES 300 and Toyota Windom (Japanese domestic market) 1994–2004 Toyota Avalon and 2000 Toyota Pronard (Avalon for Japanese domestic market) 1997-2003 Toyota Harrier (non-US markets) 1997–2002 Toyota Sienna 1997–2001 Toyota Mark II Wagon (Japanese domestic market) 1998–2003 Toyota Camry Solara (V6) 2000–2005 Toyota Estima/Toyota Tarago/Toyota Previa Beginning in 1998, VVT-i was added.

This increased the output to at 5800 rpm and of torque at 4400 rpm. It was used on later models of the Avalon, Sienna and Camry. When installed in the Highlander, power was ; torque and engine speeds did not change. Early versions of the 1MZ-FE with VVT-i used a dual throttle body while later versions used a drive by wire system (or electronic throttle control). It also contains an EGR block off plate on the exhaust manifolds.

Applications: 1997–2003 Lexus ES 300 1998–2003 Lexus RX 300 (US market) 2000–2004 Toyota Avalon 2000–2003 Toyota Highlander/Kluger 2001–2003 Toyota Sienna 2002–2008 Toyota Alphard (Japanese domestic market) 2003–2006 Toyota Camry (V6) The 2MZ-FE is a V6 engine, replacing the 4VZ-FE as the worldwide 2.5 L V6 engine. Bore and stroke is . Output is at 6000 rpm with torque of at 4600 rpm. Applications: 1996–2001 Toyota Camry (Japanese, NZ and some other Non-US markets) 1996–2001 Toyota Windom (Japanese domestic market) 1997–2001 Toyota Mark II Qualis (Japanese domestic market) The 3MZ-FE is a version.

Bore and stroke is . Output is with of torque in the Camry and with of torque in the Sienna and Highlander. It also features VVT-i, ETCS-i (Electronic Throttle Control System — intelligent/DBW), PA6 plastic intake, and increased throttle body diameter over the 1MZ. The 3MZ uses a new flat-type knock sensor, which is a departure from the typical resonator type knock sensor used on the previous MZs. Previous MZs had poor knock control, or perhaps oversensitivity when detecting knock, and power loss up to may be realized due to erratic ignition timing when using an octane lower than 91.

The new flat-type knock sensor is a completely different design and detects more frequencies than the traditional resonator type. This provides the ECU with more accurate data. A bolt goes through the center of the knock sensor, which then mates the sensor to the block on each bank. Applications: 2004-2007 Toyota Highlander 2004–2008 Toyota Camry Solara (V6) 2004–2006 Toyota Sienna 2004–2006 Toyota Camry (XV30) (SE V6) 2005–2010 Toyota Highlander Hybrid (reduced power output) 2004–2006 Lexus RX 330 2006–2008 Lexus RX 400h (reduced power output) 2004–2006 Lexus ES 330 2006–2014 Mitsuoka Orochi The MZ engines are notorious for excess oil consumption, otherwise known as "oil gelling" or "engine sludge".

This is caused by several factors, including problems with the engine's PCV system, worn-out parts, or a bad or leaking valve cover gasket.

Source: Wikipedia — Toyota MZ engine, CC BY-SA.

Models that used this engine

Model Years with this engine Fuel VIN builds seen
CAMRY 1992–2008 Gasoline 79
PICK-UP 1988–1995 Gasoline 68
SUPRA 1986–2026 Gasoline 50
SIENNA 1997–2003 Gasoline 31
AVALON 1995–2004 Gasoline 31
4RUNNER 1988–1995 Gasoline 18

Engine usage derived from NHTSA VIN build data (displacement + cylinder configuration). Model links lead to prices, generations and reliability.

For sale with this engine