Toyota 2AZ-FE Engine Problems, Specs and Reliability

The 2AZ-FE is a 2.4 L (2362 cc) version built in Japan (Kamigo Plant and by Toyota Industries Corporation), at TMMK in the USA and also built-in China for Scion xB models obtains a total displacement of 2362 cc with 88.5 mm (3.5 in) bore and 96.0 mm (3.8 in) stroke, with a compression ratio of 9.6:1. The output, is 160 hp (120 kW) at 5600 rpm; 162 lb·ft (220 N·m) of torque at 4000 rpm.

Later versions of the 2AZ-FE engines were upgraded with 9.8:1 compression ratio, a slightly more aggressive intake cam profile, a 6500 rpm red line, and piston oil squirters. These later versions are rated at 161 hp (120 kW) in the Scion tC, 177 hp (132 kW) in the Rav4, and 158 hp (118 kW) in the Camry, Corolla XRS, and Scion xB.

However, these latter 2AZ-FE models were the first to be rated under the new SAE J1349 standard. The new standard usually produces more conservative numbers, though no definitive comparison is available since the two versions were never tested by the same standard. The Rav4 uses a different timing chain cover than the Camry; they can, however, be interchanged.

A TRD supercharger was available for the Scion tC until Spring 2009. There have been complaints of this engine “burning oil” in North America, starting after 45k miles, though mostly after 60k-75k miles. Piston ring design has been identified as a problem. Toyota has even issued a TSB (Technical service bulletin) TSB #0094-11 in August 2011 but has refused to issue a general recall.

Also more convincingly reported as a head gasket problem 2AZ-FE aluminum block head bolt threads wear out on the back 3 middle bolts (closest to firewall). There are several class-action lawsuits underway regarding this widespread issue. In January 2015, Toyota North America caved in and issued an extended warranty notification (ZE7) for this issue. However, Toyota still insists that burning 1 quart of oil every 1200 miles is “normal”.

Toyota 2AZ-FE Engine Specs

ManufacturerToyota Motor Manufacturing Kentucky, Inc.
Kamigo Plant
Shimoyama Plant
Also calledToyota 2AZ
Production2000-present
Cylinder block alloyAluminum
ConfigurationStraight-4
ValvetrainDOHC
4 valves per cylinder
Piston stroke, mm (inch)96 (3.78)
Cylinder bore, mm (inch)88.5 (3.48)
Compression ratio9.6
9.8
11
12.5
Displacement2362 cc (144.1 cu in)
Power output (horsepower)108 kW (149 HP) at 6,000 rpm
118 kW (160 HP) at 5,600 rpm
120 kW (162 HP) at 5,600 rpm
125 kW (170 HP) at 6,000 rpm
Torque output187 Nm (138 lb·ft) at 4,400 rpm
218 Nm (161 lb·ft) at 3,800 rpm
220 Nm (162 lb·ft) at 4,000 rpm
224 Nm (165 lb·ft) at 4,000 rpm
Redline6,500
HP per liter63.1
67.7
68.6
72
Fuel typeGasoline
Weight, kg (lbs)138 (305)
2AZ-FE Fuel consumption, L/100 km (mpg)
– City
– Highway
– Combined
for RAV4 XA20
13.0 (18)
8.6 (27)
10.8 (21)
TurbochargerNaturally aspirated
Oil consumption, L/1000 km
(qt. per miles)
up to 1.0
(1 qt. per 750 miles)
Recommended engine oil5W-30
10W-30
Engine Oil Capacity, L (qt.)4.3 (4.5)
Oil change interval, km (miles)5,000-10,000
(3,000-6,000)
Normal engine operating temperature, °C (F)~95 (203)
Engine lifespan, km (miles)
-Official information
-Real

300,000+ km (180,000 miles)

Torque Specifications

PartN-mKgf-cmFt-lbs
Stiffering crankcase assy x Cylinder block3333224
Oil control valve filter x Cylinder block3030622
Cylinder block water drain cock2525518

Cylinder head x cylinder block 1st

2nd

79

turn 90

806

Turn 90

58

Turn 90

Spark plug x cylinder head1919414
Oil drain plug x oil pan2525518

What Cars Have 2AZ Engines?

These vehicles are fully compatible with the 2AZ-FE motor:

  • 2002–2011 Toyota Camry
  • 2009–2011 Toyota Matrix S (USA)/XR (Canada)/XRS
  • 2009–2010 Pontiac Vibe
  • 2009–2010 Toyota Corolla XRS (2011-2013 only in Mexico)
  • 2002–2008 Toyota Camry Solara
  • 2004–2007 Toyota RAV4
  • 2001–2007 Toyota Highlander/Kluger/Harrier
  • Toyota Estima / Toyota Ipsum / Toyota Previa / Toyota Tarago
  • Toyota Alphard
  • Toyota Blade
  • Toyota Avensis
  • 2005–2010 Scion tC
  • 2008–2015 Scion xB
  • 2007-2013 Toyota MarkX Zio

2AZ-FSE Engine

The 2AZ-FSE is a 2.4 L (2362 cc) version. The bore is 88.5 mm, stroke is 96.0 mm, and the compression ratio of 11.0:1. Output is 163 PS (120 kW; 161 hp) at 5800 rpm with 231 N·m (170 lb·ft) of torque at 3800 rpm. The 2AZ-FSE features Toyota’s D-4 direct injection system.

Applications: Toyota Avensis

2AZ-FXE Engine

The 2AZ-FXE is an Atkinson cycle variant of the 2AZ-FE. It has the same bore and stroke, but the cams and pistons are unique. It has a physical compression ratio of 12.5:1.

The large valve overlap leads to a reduction in cylinder charge and reduced torque and power output, but efficiency is increased. This combination makes the 2AZ-FXE suitable for use only in hybrid vehicles, where peak torque and power demands can be met by the electric motor and battery.

When used in the Camry hybrid, the maximum output is 147 hp (108 kW) at 6000 rpm with 138 lb·ft (187 N·m) of torque at 4400 rpm.

Applications:

  • Toyota Alphard Hybrid
  • Toyota Estima Hybrid
  • 2007–2011 Toyota Camry Hybrid AHV40
  • 2010–2012 Lexus HS 250h
  • 2009– Toyota Sai

Toyota 2AZ Engine Problems and Reliability

The engine’s maintainability is practically zero. Saddles in the head are very thin with laser treatment, and it has a narrow neck of the valve. The engine is exposed to overheating.

The average life of 2AZ is about 200,000 miles, in case of proper maintenance.

The main mass defect of all AZ engines became apparent after a few years of operation and was more than critical. It is spontaneously destruction of the thread in holes for head bolts in the cylinder block, with seal failure, leaking of coolant through a gasket, possible overheating, mating surfaces warping, etc.

And many owners and repairers initially did not allow the thought of constructive miscalculation of Toyota and believed that the failure of the thread occurred due to overheating, whereas in reality, it was the opposite.

Officially the problem was recognized in 2007, after some modifications (the length of the thread in the block has increased from 24 to 30 mm). Initially, the manufacturer recommended replacing the damaged blocks assembly (defective part numbers – 11400-28130, -28490, -28050, the price is $3000-4000). As the warranty expired this method was unacceptable due to high cost, in practice the optimal was damaged thread reboring and threading to a larger diameter to install threaded inserts for standard bolts (it is recommended to “update” all holes preventive, not damaged only, and renew the head bolts).

Finally, in 2011 Toyota officially recommended a special repair kit “Time Sert,” with threaded inserts for post-warranty car repair.

Modification of blocks with a slight increase of thread length was definitely effective – if “head drop” for 2000-2006 cars was only a matter of time, for later cars this defect becomes non-typical.

Is The 2AZ-FE A Good Engine?

The Toyota 2AZ-FE is a decent engine. For many years, it’s been in Toyota vehicles and is still popular among Toyota drivers. The engine is recognized for its fuel efficiency and performance. If you’re seeking an inexpensive, dependable motor, the Toyota 2AZ-FE is a wonderful choice. Performance may be subpar by today’s standards, but the 2AZ-FE delivers respectable reliability and efficiency.

Toyota 2AZ Replacement Parts

This block presents spare parts that you can buy on Amazon. After all the commission can be paid to us. Nevertheless, we do not urge you to buy goods only in order to help our project – buy only those spare parts that you really need.

No. 1
2AZ-FE Engine Rebuild Kit Crankshaft Rods Bearings Pistons Ring Head Gasket Replacement for Toyota Camry Highlander RAV4 Solara Corolla Matrix for Scion tC xB 2.4L 2AZFE 13201-29685-A0 13401-28030
  • 【Part Number】:13401-28030, 1340128030; 13011-0H031,13211-0H041-A0,13211-0H041-B0,13211-0H041-C0,13251-0H030-B0,13251-0H030-C0,13211-28112-A0; 13201-29685-A0, 13201-29685-B0, 13201-29685-C0,13201-29125-A0, 13201-29125-B0, 13201-29125-C0; MB5646SI, 5M8412A, MB922, 7431M, BC1002, BM15-104, MBTO44, CR4514SI, 4B8411A, RB922, BB1001, 4-5000A, RBTO44, BR15-104; 11115-28010, 11115-28011, 11115-28012, 11115-28013, 11213-0H040, 11213-28021, 90080-31072, 90311-38078, 90311-38080, 90311-T0024, 17173-0H020, 17173-0H040, HS26232PT, ES71183, 90311-38089, 90311-38096, 90311-A0014.
  • 【Fitments】: Replacement for Toyota Highlander 2.4L 2001-2007, Solara 2.4L 2002-2008, Camry 2.4L 2002-2009, RAV4 2.4L 2004-2007, Corolla XRS 2.4L 2009-2010, Matrix 2.4L 2009-2011; Replacement for Scion tC 2.4L 2005-2010, xB 2.4L 2008-2015.
  • 【Specifications】: Engine: 2AZ-FE 16V DOHC 2.4 LTR VVT-i PETROL; Standard Bore Diameter: 88.50mm; 1st Group: 1.00mm; 2nd Group: 1.00mm; Oil Ring: 2.00mm.
  • 【Package Including】: 1x Crankshaft, 4x Connecting Rods, 4x Engine Piston, 4x Engine Piston Pin, 1x Engine Piston Rings Set, 1x Main & Rod Bearings Set, 1x Head Gasket Set.
No. 2
Dilomber Engine Balance Shaft Set Fits for Toyota Camry/Corolla/Matrix/RAV4, For Toyota 2AZ-FE 2AZ-FXE 2.4L Engine, Scion xB/tC, Lexus HS250h, 2007-2015#Replace 13601-28021 13602-28020
  • 【Compatibility】For Toyota 2AZ-FE 2AZ-FXE 2.4L Engine; For Toyota Camry, 2007-2011; For Toyota Corolla, 2009-2010; For Toyota Matrix, 2009-2013; For Toyota Solara, 2007-2008; For Lexus HS250h, 2010-2012; For Scion tC, 2007-2010; For Scion xB, 2008-2015.
  • 【OE Part Number】The OE Part Number of the engine balance shaft set is 13601-28021 13602-28020.
  • 【Function】Balance shafts are used in internal combustion engines to reduce or eliminate the free mass forces of engine, making the engine run smoother and quieter for driver and passenger comfort.
  • 【Ideal replacement】Made of high quality materials, in accordance with OE standards, and professionally tested before leaving the factory to ensure the reliability, durability and high performance of the engine balance shaft set.
No. 3
Mocar7 Engine 2AZ-FE Parts Aluminum Valve Covers Compatible with Toyota Camry Highlander Harrier Rav4 Previa Alphard Rukus Matrix Mark Scion tC xB 2000-2015 2.4L Replace 1120128014 1120128033
  • EXCAT MATCH : Compatible with Toyota 2002-2011 Camry , 2001-2003 Harrier , 2001-2007 Highlander , 2001-2012 RAV4 , 2002-2008 Camry Solara , 2000-2005 Previa , 2002-2008 Alphard , 2009-2013 Matrix , 2007-2013 Mark X ZIO , 2008-2015 Rukus . Compatible With 2005-2010 Scion tC , 2008-2015 Scion xB
  • ENGINE VALVE COVER KIT INCLUDES : Valve cover assembly comes with , Valve Covers Gasket, Tube
  • ALUMINIUM INTAKE MANIFOLD KIT : Our engine valve cover kit is made of aluminum alloy material to solve the issues of leakage, crack and low power performance
  • WHY TO CHOOSE US : Valve cover has advanced weld process consistent and durable construction. Complete Valve Cover kit includes all handware accessories to install quickly and conveniently. Perfect OE FIT and precise installation
No. 4
Merautop SJ Engine Balance Shaft Set 13601-28021 Replacement for Toyota Camry 2007-2011 for Corolla 2009-2013 for Matrix 2009-2013 for Solara 2007-2008 2.4L 4CYL 2AZ-FE Engine 13602-28020
  • Replaces OEM Part Number: The Engine Balance Shaft Set Replaces 13601-28021, 13602-28020, 13602-0H020, 13602-0H030, 1360128021, 1360228020
  • Compatible Models: This Engine Balance Shaft Set Replacement for 2AZ-FE 2AZ-FXE 2.4L Engine, for Toyota Camry 2007-2011, for Toyota Corolla 2009-2013, for Toyota Matrix 2009-2013, for Toyota RAV4 2006-2008, for Toyota Solara 2007-2008, for Lexus HS250h 2010-2012, for Scion tC 2007-2010, for Scion xB 2008-2015
  • Premium Material: This Engine Balance Shaft Set is made of high-strength metal material, corrosion-resistant and wear-resistant, can withstand extreme operating conditions such as extreme temperatures, humidity, and vibration. It's thoroughly tested to ensure performance and lasting quality
  • High Performance: The engine balance shaft is used to balance and reduce the vibration caused by the inherent imbalance of the engine, reduce engine noise, extend engine life and improve driving comfort
No. 5
VS50530R Engine Head Valve Cover Gasket Seal HS250h Vibe for Toyota Camry Corolla Matrix RAV4 Solara 2AZ-FXE 1AZ-FE L4 2.4L 2.0L Valve Cover Gasket 11213-28021 112130H010 11213-0H010 VS50362 0361639
  • 【Compatible With】--2010-2012 HS250h; 2009-2010 Vibe; 2005-2010 tC; 2008-2013 xB; 2002-2011 Camry; 2009-2012 Corolla; 2001-2007 Highlander; 2009-2013 Matrix; 2004-2008 RAV4; 2002-2008 Solara; 2001-2003 RAV4.
  • 【Replace NO.】--11213-0H010, 11213-28021, VS50530R, VS50362, JN2424, 0361639.
  • 【Material】--This gasket is made of high quality silicone material.
  • 【Package Includes】--1 Valve Cover Gasket .We find some customer’s voice from other store that they receive their gasket with package leak, parts lost, so we pack our gasket with high quality bag to make sure our customer receive our gasket completely.

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Last update on 2025-05-26 / Affiliate links / Images from Amazon Product Advertising API