Basic Specifications
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Specification
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Details
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Engine Model
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1GR-FE
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Type
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V6 DOHC 24-valve
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Displacement
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3956 cc (4.0L)
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Bore × Stroke
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94 × 95 mm
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Block Material
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Aluminum alloy
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Valve System
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Dual overhead camshafts
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Timing System
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Chain-driven
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Fuel System
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EFI (Electronic Fuel Injection)
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Power
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236–285 hp (varies by year)
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Torque
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376–381 Nm
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1GR-FE Generations
First Generation (2002–2009)
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Single VVT-i (variable valve timing on intake)
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Power: ~236–249 hp
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Electronic throttle control
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Common models: Prado 120, Tacoma, Tundra, Hilux, FJ Cruiser, 4Runner
Second Generation (2009–Present)
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Dual VVT-i (intake and exhaust)
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Power: ~270–285 hp
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Improved fuel efficiency
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Higher emission standards
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Common models: Prado 150, 4Runner, Tacoma, Tundra, Hilux, Fortuner
Common Issues
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Water Pump Leakage – Often appears at 80k–150k km
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Ignition Coil Wear – Causes misfires (P030X codes)
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Timing Chain Tensioner Noise – Cold start clicking
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VVT-i Actuator Noise – Short noise on startup
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Valve Cover Gasket Leak – Due to aging rubber gaskets
Engine Code Differences
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Code
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Feature
|
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1GR-FE Single VVT-i
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First generation
|
|
1GR-FE Dual VVT-i
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Second generation
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|
Domestic 1GR-FE
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Local production Prado 4.0
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Compatibility & Swaps
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Component
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Compatibility
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Engine block
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Mostly compatible
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|
Crankshaft
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Mostly compatible
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Connecting rods & pistons
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Largely compatible
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Cylinder head
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Single vs dual VVT differs
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ECU
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Different
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Wiring harness
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Different
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Camshaft
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Different
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Timing components
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Some differences
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Short Block Swap: Generally possible between generations.
Long Block Swap: Requires matching ECU, wiring, intake/exhaust manifolds, VVT system, and sensors.
Common Applications
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Vehicle
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Years
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|
Toyota Prado 120
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2002–2009
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|
Toyota Prado 150
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2009–Present
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Toyota FJ Cruiser
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2007–2022
|
|
Toyota Tacoma
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2005–2024
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Toyota Hilux
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Select markets
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Toyota Fortuner
|
Select markets
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Toyota 4Runner
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2003–2024
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Toyota Tundra
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2005–2014
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