The 4.3-liter Toyota 3UZ-FE V8 engine was assembled at a plant in Japan from 2000 to 2013 and was installed in rear-wheel drive passenger cars, including those produced under the Lexus brand. This powertrain was equipped with VVT-i phase controllers on the intake shafts and the ACIS system.
The UZ range also includes: 1UZ-FE and 2UZ-FE.
Engine specifications for Toyota 3UZ-FE 4.3 l
| Configuration | Inline |
| Number of cylinders | 8 |
| Number of valves | 32 |
| Displacement | 4292 cc |
| Cylinder diameter | 91 mm |
| Stroke | 82.5 mm |
| Power system | Injector |
| Engine power | 280 – 305 hp |
| Torque | 420 – 440 Nm |
| Compression ratio | 10.5 |
| Fuel type | Medium/Plus |
| Euro class | EURO 3 |
The dry weight of the 3UZ-FE engine is 225 kg
3UZ FE 4.3 l information
In 2000, the 1UZ-FE engine was upgraded to a larger 4.3L V8 featuring DOHC heads and timing belt drive equipped with Toyota’s automated variable valve system (ACIS) for improved performance. In 2003, further improvements were made in order to adapt it for use with an alternate automatic transmission type.
Fuel consumption 3UZ-FE
The 2010 Toyota Crown Majesta with automatic transmission as an example (l/100km):
| City | 14.5 l |
| Highway | 9.0 l |
| Combined | 11.6 l |
What cars use the Toyota 3UZ-FE
The Toyota 3UZ-FE is a very popular engine that can be found in a variety of different vehicles. Its versatility makes it a top choice for many car manufacturers. Vehicles that use the Toyota 3UZ-FE engine include the Lexus LS430, the Lexus GS430, and the Lexus SC430 models. Additionally, certain year models of Infiniti’s Q45 and M45 models also make use of this particular engine model. Given its flexibility, vehicle owners can expect to enjoy a long lasting engine that offers reliable performance at an affordable price.
| Crown Majesta 4 (S180) | 2004 – 2009 |
| Crown Majesta 5 (S200) | 2009 – 2013 |
| Celsior 3 (XF30) | 2000 – 2006 |
| Soarer 4 (Z40) | 2001 – 2005 |
| GS S160 | 2000 – 2005 |
| GS S190 | 2005 – 2007 |
| LS XF30 | 2000 – 2006 |
| SC Z40 | 2001 – 2010 |
Reviews on the engine 3UZ-FE
Modern car engines are renowned for their reliability and long lifespan, which makes them ideal as a base to tune further. With an impressive selection of new and used parts available at reasonable prices on the secondary market, it’s no wonder DIY mechanics love these motors! Unfortunately they do have some drawbacks; fuel consumption is high with accompanying taxes due – not great news for your wallet! Moreover valve bending may occur after belt ruptures requiring detailed knowledge when unscrewing bolts within the ACIS system or re-adjustment of valve clearances before restarting.
Engine Toyota 3UZ-FE 4.3 l
| Interval | 10 000 km |
| Oil capacity | 5.8 l |
| Need to change | 5.1 l |
| Type of oil | 5W-30, 5W-40 |
| Timing Chain Type | Belt |
| Service life | 100 000 km |
| In practice | 150 000 km |
| At breakage/trans-skip | Bending of valves |
| Re-adjustment | every 100 000 km |
| Air filter | 40 000 km |
| Fuel filter | 40 000 km |
| Spark plugs | 40 000 km |
| Belt | 100 000 km |
| Antifreeze | 3 years or 60 000 km |
Problems & disadvantages
Working with engines, especially ones equipped with ACIS intake geometry modification system and their flaps, requires a special level of caution and expertise. While it is true that unscrewing these bolts can lead to heavy scuffing in cylinders, there may be other causes behind such issues. If the timing belt has broken or small breakdowns like low life of the pump and thermostat, ETCS-i electronic throttle failure etc., were overlooked then these might be responsible for considerable damage. It is therefore essential for the owners to have their engines regularly checked and serviced in order to prevent long-term damage or costly repairs.
The manufacturer says the engine life is 300,000 km, but it will easily pass 500,000 km.
Price of Toyota 3UZ-FE engine
If you’re in the market for a powerful Toyota 3UZ-FE engine, you don’t have to look far. This reliable engine model is both durable and affordable, making it a popular choice for those in the automotive industry. Prices range from around $2000 to $4000 USD depending on location, grade, and condition, making it an economical component for any vehicle upgrade project.
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