Toyota 3UR-FE

Toyota 3UR-FEThe Toyota 3UR-FE is a 5.7 L (5,663 cc, 345.6 cu·in) V8, four-stroke cycle water-cooled naturally aspirated internal combustion gasoline engine, from the UR-family, manufactured by the Toyota Motor Corporation since 2006.

The 3UR-FE engine has 8 cylinders in a V-arrangement at a bank angle of 90° The 3UR-FE features die-cast aluminum cylinder block with a five-bearings crankshaft and two aluminum heads with two chain-driven camshafts (DOHC) and four valves per cylinder (32 in total). The Toyota 3UR-FE engine is equipped with L-type sequential fuel injection (SFI) system, Direct Ignition System (DIS) ignition system with individual coils on each spark plug, Acoustic Control Induction System (ACIS), Electronic Spark Advance (ESA) and ETCS-i (Electronic Throttle Control System-intelligent). The engine also used a Dual VVT-i (Variable Valve Timing) system for the intake and exhaust camshafts.

It has a 94.0 mm (3.7 in) cylinder bore and 102.0 mm (4.02 in) piston stroke. Compression ratio rating is 10.2:1.

This engine produced from 362 PS (266 kW; 357 HP) at 5,600 rpm to 383 PS (282 kW; 378 HP) at 5,600 rpm of maximum horsepower and from 530 N·m (54 kg·m, 391 ft·lb) at 3,200 rpm to 546 N·m (55.7 kg·m, 402 ft·lb) at 3,600 rpm of peak torque depending on year and vehicle model.

The breakdown of the engine code is as follows:

  • 3 – 3rd generation engine
  • UR – Engine family
  • F – Economy narrow-angle DOHC
  • E – Multi Point Fuel Injection

General information

Engine Specifications
Engine code3UR-FE
LayoutFour stroke, V8
Fuel typeGasoline (petrol)
Production2006-
Displacement5.7 L, 5,663 cm2 (345.6 cu in)
Fuel systemSequential multi-point fuel injection (SFI)
Power adderNone
Power output From 362 PS (266 kW; 357 HP) at 5,600 rpm
to 383 PS (282 kW; 378 HP) at 5,600 rpm
Torque output From 530 N·m (54 kg·m, 391 ft·lb) at 3,200 rpm
to 546 N·m (55.7 kg·m, 402 ft·lb) at 3,600 rpm
Firing order1-8-7-3-6-5-4-2
Dimensions (L x W x H):
Weight220 kg (485 lbs)

Cylinder block

The 3UR-FE engine has a die-cast aluminum cylinder block in a V arrangement at a bank angle of 90°. This engine’s firing order is 1-8-7-3-6-5-4-2. The crankshaft is supported by five main bearings. These bearings are made of aluminum alloy. The engine is equipped with forged steel crankshaft with five journals and six balance weights.

The 3UR-FE engine used forged connecting rods with resin-coated aluminum bearings. Pistons are made of high temperature-resistant aluminum alloy and they are cooled by four oil jets in the cylinder block. Piston pins are the full-floating type. The Toyota 3UR-FE motor has two compression and one oil control rings.

Bore and stroke are 94.0 mm (3.7 in) and 102.0 mm (4.02 in), respectively. Compression ratio rating is 10.2:1.

Cylinder block
Cylinder block alloyAluminum
Compression ratio:10.2:1
Cylinder bore:94.0 mm (3.7 in)
Piston stroke:83.0 mm (3.27 in)
Number of piston rings (compression / oil):2 / 1
Number of main bearings:5
Cylinder inner diameter (standard):94.000-94.012 mm (3.700-3.701 in)
Piston skirt diameter (standard):93.950-93.960 mm (3.6988-3.6992 in)
Piston pin outer diameter:21.997-22.000 mm (0.866-0.8661 in)
Connecting rod bushing inner diameter:22.000 mm (0.8661 in)
Connecting rod big end diameter:59.000 mm (2.3228 in)
Piston ring side clearance:Top0.020-0.070 mm (0.0008-0.027 in)
Second0.020-0.060 mm (0.0008-0.0024 in)
Oil0.070-0.145 mm (0.0028-0.0057 in)
Piston ring end gap:Top0.22-0.33 mm (0.0087-0.013 in)
Second0.35-0.50 mm (0.0138-0.0197 in)
Oil0.10-0.40 mm (0.0039-0.0157 in)
Crankshaft main journal diameter:66.988-67.000 mm (2.6373-2.6378 in)
Crankpin diameter:55.982-56.000 mm (2.204-2.2047 in)

Main bearing cap bolts tightening procedure and torque specs:

  • Step 1:
    Inside: 61 Nm; 6.2 kg·m; 45 ft·lb
    Outside: 27 Nm; 2.7 kg·m; 20 ft·lb
  • Step 2: Turn bolts 90°
  • Cylinder block side 45 Nm; 4.6 kg·m; 33 ft·lb

After securing bearing cap bolts, make sure crankshaft turns smoothly by hand.

Connecting rod bearing bolts

  • Step 1: 40 Nm; 4.0 kg·m; 30 ft·lb
  • Step 2: Turn bolts 90°

Cylinder head

The cylinder heads are made of aluminum alloy. The 3UR-FE engine has dual overhead camshafts design (DOHC) with four valves per cylinder (2 intakes and 2 exhaust). The 3UR-FE engine used primary timing chains for the intake camshafts and each exhaust camshaft is driven by a secondary timing chain from the intake camshaft. The 3UR-FE engine had Dual VVT-i to control the intake and exhaust camshafts.

Intake duration is 248 degrees and exhaust duration is 242 degrees. For valve clearance adjustment this engine used hydraulic lash adjuster which is actuated by engine oil supplied from the cylinder head and an integrated spring.

Cylinder head
Block head alloyAluminium
Valve Arrangement:DOHC, chain drive
Cylinder head height:
Valves:32 (4 valves per cylinder)
Intake valve timing:248°
Exhaust valve timing:242°
Valve head diameter:INTAKE38.0 mm (1.496 in)
EXHAUST34.5 mm (1.260 in)
Valve length:INTAKE105.85 mm (4.17 in)
EXHAUST110.40 mm (4.35 in)
Valve stem diameter:INTAKE5.470-5.485 mm (0.215-0.216 in)
EXHAUST5.465-5.480 mm (0.2152-0.2157 in)
Valve spring free length:INTAKE49.39 mm (1.9445 in)
EXHAUST49.39 mm (1.9445 in)
Camshaft lobe height:INTAKE44.291-44.441 mm (1.7437-1.7496 in)
EXHAUST44.196-44.346 mm (1.74-1.7459 in)
Camshaft journal diameter:№129.956-29.970 mm (1.1794-1.1799 in)
Other25.959-25.975 mm (1.022-1.0226 in)

Head tightening procedure and torque specs:

  • Step 1: 36 Nm; 3.67 kg·m; 27 ft·lb
  • Step 2: Turn all bolts 90°
  • Step 3: Turn all bolts another 90°
  • For 12 mm head: 21 Nm; 2.14 kg·m; 15 ft·lb

Maintenance data

Compression pressure
Standard13.3 kg/cm2, (189 psi) / 300 rpm
Minimun10.2 kg/cm2, (145 psi) / 300 rpm
Compression differential limit between cylinders1.0 kg/cm2, (15 psi) / 300 rpm
Oil system
Oil consumption , L/1000 kmup to 1.0
Recommended engine oil SAE 0W-20, 5W-20, 5W-30, 10W-30
Oil type APISL, SM, SN
Engine oil capacity (Refill capacity) With filter change: 7.5 l (7.9 US. qts, 6.6 Imp. qts)
Without filter change: 7.1 l (7.5 US. qts, 6.2 Imp. qts).
Oil change interval, km (miles)10,000 (6,000)
Oil Pressure Idle speed: 70 kPa (0.7 kgf/cm2, 10.1 psi) or more
2,500 rpm: 220 kPa (2.2 kgf/cm2, 32 psi) or more
Ignition system
Spark plugDENSO: SK20R11.
Spark plug gap1.0-1.1 mm (0.0394-0.0433 in.)
Spark plug tightening torque21 Nm (2.14 kg⋅m, 15 ft⋅lb)

Vehicle applications

ModelYears Produced
Toyota Tundra2006-
Toyota Sequoia2007-
Toyota Land Cruiser 2002007-
Lexus LX 5702007-
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1 Comment

  1. This engine(from a 2014 Tundra) was used to replace a blown engine in a 2008 Landcruiser and did not work. Toyota Techs were unable to fix the problem. We are looking for a used engine for a 2008 Lancruiser or any information why a urfe engine that is supposed to be compatible with the 2008 Landcruiser does not work.

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