Toyota 1GRFE 4.0L V6 Remanufactured Engine – 40759
Original price was: $7,549.00.$6,049.00Current price is: $6,049.00.
Block Cast: 1GR
TRD Equipment Voids Warranty
Restore the legendary towing and off-road capability of your truck with a premium Toyota 1GRFE Remanufactured Engine. Built to strictly meet or exceed OEM specifications, this 4.0L DOHC 24-Valve V6 long block features a fully CNC-machined aluminum casting, 100% new internal wear components, and rigorous live-run SIM testing.
- ✔ Valvetrain: DOHC 24-Valve with All-Aluminum Block & Heads
- ✔ Quality Assurance: Hot SIM spun, pressurized, and compression verified
- ✔ Vehicle Application: 2005–2011 Tacoma, 4Runner, Tundra & FJ Cruiser
Heavy-Duty Toyota 1GRFE Remanufactured Engine
Known for powering a generation of iconic off-road and utility vehicles, the 4.0L V6 requires exact precision during the rebuilding process. Every Toyota 1GRFE Remanufactured Engine from Mechrontech delivers factory-grade quality, improved durability, and long-term reliability for your Tacoma, 4Runner, Tundra, or FJ Cruiser. By upgrading critical internal components and machining surfaces beyond factory limits, we resolve common high-mileage wear patterns. View our complete catalog of remanufactured engines for more fleet and B2B replacement powertrain solutions.
⚠️ Important Warranty Restriction
Use of TRD Equipment VOIDS Warranty: This engine is remanufactured strictly to naturally aspirated OEM specifications. The installation of forced induction systems, including TRD Superchargers or aftermarket performance tuners, alters factory cylinder pressures and operating temperatures, immediately voiding the up to 7-year / 1-million-mile warranty protection.
Engine Code
1GR-FE
Block Cast # 1GR
Displacement
4.0L (3956cc)
241.0 cu. in. / V6
Head & Valvetrain
DOHC 24-Valve
Head Cast # 1GR RH (Aluminum)
Shipping Weight
280 lbs
36 x 36 x 36 in.
Why Choose Our Toyota 1GRFE Remanufactured Engine?
Sourcing a salvage yard V6 means inheriting someone else’s skipped oil changes or stretched timing chains. A completely remanufactured long block resets the clock to zero hours. The stringent build protocol for each Toyota 1GRFE Remanufactured Engine includes:
1. Thermal Cleaning & Disassembly
The entire aluminum V6 block is fully disassembled and thermally cleaned in specialized ovens to safely lift away hardened oil varnish, carbon scale, and stubborn coolant residues.
2. Magnaflux Structural Inspection
Utilizing advanced magnetic particle and dye penetrant testing, the aluminum blocks and cylinder heads are scrutinized for microscopic stress fractures that could cause long-term failure under towing loads.
3. Precision CNC Surface Machining
All deck surfaces on the engine block and cylinder heads are CNC machined to exact micro-inch finishes, guaranteeing a perfectly flat, unyielding seal for the multi-layer head gaskets.
4. 100% Brand-New Wear Parts
Reassembled with all-new main bearings, pistons, rings, lifters, high-flow oil pump, Viton™ valve seals, freeze plugs, galley plugs, and a completely new timing chain assembly featuring upgraded tensioners.
Automated SIM Testing Protocol
Reliability is non-negotiable for a truck powertrain. Before securing the crate for freight transit, every Toyota 1GRFE Remanufactured Engine undergoes stringent SIM rig testing:
- Fluid Pressure Validation: The cooling and lubrication systems are fully pressurized to test oil flow across all journals, confirming there are no blockages or internal leaks.
- High-RPM Spin Testing: The crankshaft is spun dynamically by an electric motor to verify uniform compression across all six cylinders.
- Valvetrain Integrity: The DOHC timing chain setup is monitored during the spin test to ensure zero slack and perfect valve seat sealing.
Vehicle Compatibility for the Toyota 1GRFE Remanufactured Engine
This 4.0L V6 (3956cc) DOHC long block assembly is a direct drop-in replacement for the following Toyota truck and SUV applications:
| Year Range | Make | Model | Engine Details |
|---|---|---|---|
| 2005 – 2006 | Toyota | Tundra | V6 4.0L 3956cc |
| 2005 – 2009 | Toyota | 4Runner | V6 4.0L 3956cc |
| 2005 – 2011 | Toyota | Tacoma | V6 4.0L 3956cc |
| 2007 – 2009 | Toyota | FJ Cruiser | V6 4.0L 3956cc |
Installation & Initial Break-In Guidelines
To preserve the comprehensive warranty and ensure maximum lifespan for your new Toyota 1GRFE Remanufactured Engine, strict adherence to these installation practices is required:
- Radiator & Cooling Flush: Completely flush or replace the radiator assembly. Debris from a previous head gasket failure will destroy the new engine if circulated.
- Oil Priming: Fill the crankcase with high-quality conventional break-in oil and manually crank the engine with the ignition disabled to prime the oil galleries.
- 500-Mile Break-In Period: Drive at varying speeds and loads for the first 500 miles. Avoid towing, extended idling, or constant RPM highway cruising to allow the piston rings to seat against the newly cross-hatched cylinder walls.
Full Technical Attributes
| OEM Manufacturer Code | 1GR-FE (1GRFE) |
| Engine Code / Casting # | Block Cast # 1GR |
| Cylinder Head Casting # | Head Cast # 1GR RH (Left & Right) |
| Casting Location | Right Side Bell Housing |
| Engine Type & Valvetrain | 4.0L V-Block V6 DOHC 24-Valve |
| Block & Head Material | Aluminum Block / Aluminum Heads |
| Main Bearing Cap Bolt Quantity | 2-Bolt |
| Fuel Grade | Gasoline (Premium Recommended) |
| Dimensions & Weight | 36″ x 36″ x 36″ | 280 lbs |
Inquire About Freight Delivery & Pure Care™ Warranties
For questions regarding our industry-leading 7-year / 1-million-mile warranty options, core exchange procedures, or nationwide freight delivery when purchasing a Toyota 1GRFE Remanufactured Engine, reach out directly through the Mechrontech contact portal.
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