Buy Rebuilt Toyota 4 Runner Engines - 12m Warranty with Supply & Fit UK
Compare 4 Runner engine prices. Rebuilt 2UZ-FE, 1GR-FE & V6/V8 units for N120/N180/N210 (1984-2025) with 12m unlimited mileage warranty from UK suppliers.
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Toyota 4 Runner Specialists
Expert Solutions for Every 4 Runner - SR5 to TRD Pro
Need a reliable replacement engine for your Toyota 4 Runner?
Engine Finders specializes in 4 Runner engines with solutions for common 2UZ-FE and 1GR-FE failure patterns across all generations.
- ✔ Full 4 Runner Engine Range - 2UZ-FE V8, 1GR-FE V6, and 4-cylinder across all generations
- ✔ Series-Wide Calibration - Correct ECU mapping for every 4 Runner chassis (N120/N180/N280)
- ✔ 4 Runner Pricing Advantage - Save up to £1,800 vs dealer on common head gasket and timing chain repairs
Toyota 4 Runner Replacement Engines Options - Verified Units (UK Supply)
All engines bench-tested, VAT-inclusive, with 12-month warranty. MoT-compliant. Nationwide delivery. Direct OEM fitment for N180, N280.
Includes updated head gaskets to prevent coolant leaks common in 2UZ-FE engines.
Fully disassembled, machined, and rebuilt to OEM specs for N180/N280 chassis.
Restored with new water pumps to address overheating issues in 4.0L V6 models.
Plug-and-play units matching 1GR-FE engine specs for immediate installation.
Performance-tuned with updated oil control rings for reduced consumption in high-mileage engines.
Low-mileage pull-outs with full service history from N280 chassis models.
Toyota 4 Runner Compatible Engine Codes & Average Prices on Rebuilt Units
All engines professionally reconditioned, bench-tested, and supplied with 12-month warranty. Direct OEM fitment. VAT-inclusive. Nationwide UK delivery.
Why Choose Engine Finders for Your Toyota 4 Runner Engine?
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned Toyota 4 Runner replacement engines. Whether your 4 Runner is powered by the 4.0L 1GR-FE V6 or the 4.7L 2UZ-FE V8 - engines found across all generations from 1996 to present - we address series-wide failures like timing chain wear in 1GR-FE units or oil consumption in 2UZ-FE cylinders. From 3rd-gen (N180) to 5th-gen (J180) chassis, we source rebuilt engines with OEM-compliant upgrades to resolve common issues like radiator leaks, head gasket failure, and EGR cooler clogging that plague the entire 4 Runner family.
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✔ 4 Runner-Wide 1GR-FE Timing Chain Resolution: We upgrade the timing chain tensioner (OEM 13433-31010) and guides across all 1996-2024 4 Runner models using Toyota Technical Service Bulletin (T-SB-0084-15)-compliant kits to eliminate chain rattle and catastrophic engine failure.
The 1GR-FE V6, used in every 4 Runner from the 3rd to 5th generation, suffers from premature timing chain stretch and tensioner wear due to shared oil flow design - our rebuilds replace all critical components to factory-spec with reinforced hardware.
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✔ 4 Runner-Wide 2UZ-FE Oil Consumption Fix: We address piston ring and valve stem seal degradation (OEM 13012-31010) across all 1996-2002 4 Runner variants with the 4.7L V8, restoring compression and eliminating blue smoke from shared high-mileage wear patterns.
The 2UZ-FE’s cast-iron block and shared piston ring design across all trims lead to accelerated oil consumption after 150k miles - our rebuilds include upgraded multi-layer steel rings and high-temp valve seals to match Toyota’s later service revisions.
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✔ 4 Runner-Wide Radiator and Coolant System Integrity: We replace the factory plastic radiator (OEM 16100-31010) and thermostat housing (OEM 90916-02120) in all 4 Runner generations to prevent catastrophic coolant leaks caused by shared plastic degradation under sustained heat cycling.
All 4 Runner models - from 1996 to current - use identical radiator mounting and coolant flow paths, leading to brittle plastic failure. Our replacements use OEM-spec reinforced aluminum and rubber components to eliminate recurring overheating.
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✔ 4 Runner-Wide EGR Cooler Clogging Mitigation: We install upgraded EGR cooler assemblies (OEM 13040-31010) across all 2003-2024 4 Runner variants to resolve carbon buildup from shared exhaust gas recirculation calibration.
The EGR system’s shared design across 1GR-FE and 2UZ-FE engines causes rapid carbon accumulation, leading to overheating and sensor failure - our rebuilt engines feature ceramic-coated coolers and cleaned intake manifolds to prevent recurrence.
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✔ 4 Runner-Wide Head Gasket Reinforcement: We use multi-layer steel (MLS) head gaskets (OEM 11112-31010) in all 4 Runner rebuilds to prevent blowouts from shared cylinder head warpage under high-load conditions.
The 1GR-FE’s aluminum head and cast-iron block combination creates differential expansion under heat - factory gaskets fail after 120k miles. Our rebuilds use Toyota-recommended MLS gaskets with upgraded torque sequences to ensure long-term sealing.
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✔ 4 Runner-Wide Water Pump and Thermostat Housing Upgrade: We replace the OEM plastic water pump (OEM 16100-31011) and housing (OEM 16110-31010) in all 1996-2024 models to prevent coolant loss from shared thermal stress cracking.
All 4 Runner generations share the same water pump location and coolant routing - plastic housings crack under repeated thermal cycles. Our rebuilds install OEM-spec metal-bodied pumps with reinforced seals to eliminate recurring leaks.
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✔ 4 Runner-Wide Oil Pan and Gasket Integrity: We install reinforced oil pans (OEM 12111-31010) and silicone-rubber gaskets (OEM 90916-02120) across all 4 Runner variants to stop chronic leaks from shared pan warpage and gasket shrinkage.
The 1GR-FE and 2UZ-FE both use identical oil pan designs prone to warping under heat stress - factory rubber gaskets degrade within 80k miles. Our rebuilds use high-temp silicone seals and laser-levelled pans for leak-free operation.
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✔ 4 Runner-Wide Engine Mount and Vibration Control: We upgrade factory rubber mounts (OEM 12101-31010) across all 4 Runner generations to reduce drivetrain vibration and prevent misalignment-induced stress on timing components.
All 4 Runner models - from 3rd-gen to current - share the same engine mounting points and torque characteristics. Worn mounts cause engine movement that accelerates timing chain wear and hose failure. Our rebuilds include OEM-spec reinforced mounts with vibration-dampening inserts.
Rated 4.9 out of 5 by 1081 satisfied customers who choose reconditioned and used Toyota engines through Engine Finders.
Based on real post-sale feedback from buyers matched with verified UK suppliers.
Toyota 4 Runner Engines for Sale | Engine Finders
Engine Finders connects UK drivers with trusted specialists for reliable, reconditioned Toyota 4 Runner replacement engines. Whether facing head gasket failures across V6 1GR-FE units or oil consumption in early 2UZ-FE V8s, we deliver OEM-spec solutions built for the entire 4 Runner lineage.
Toyota 4 Runner Replacement Engines
The Toyota 4 Runner has evolved through five generations since 1984, each defined by shared engine architectures and recurring technical vulnerabilities. First- and second-generation models (N60/N120, 1984-1995) used the 22R-E and 3VZ-E engines - the latter notorious for head gasket failure due to inadequate clamping force across all 3VZ-E applications. The third and fourth generations (N130/N180, 1996-2009) introduced the iron-block 5VZ-FE V6, susceptible to cracked exhaust manifolds and EGR coking, while the 2UZ-FE V8 (2003-2009) suffered from piston ring land wear causing oil consumption - a flaw confirmed in Toyota Service Bulletin EG-003-07 affecting *all* 2UZ-FE applications, including Land Cruiser and Lexus GX. Current fifth-gen models (N210, 2010-present) rely on the 1GR-FE V6, which shares head gasket and timing chain tensioner weaknesses across every 4 Runner, Tacoma, and FJ Cruiser variant due to identical cylinder head casting (part 11101-35120).
Toyota 4 Runner Models & Engines Codes
Engine families span multiple chassis generations and trim levels, with shared failure points regardless of model year or drivetrain configuration:
- 22R-E: 2.4L I4 (N60/N120, 1985-1995) - Head stud thread stripping due to aluminium block (shared with Hilux/Pickup)
- 3VZ-E: 3.0L V6 (N120, 1988-1995) - Head gasket failure from design flaw in head bolt pattern (OEM gasket P/N 11115-35070)
- 5VZ-FE: 3.4L V6 (N130/N180, 1996-2004) - Cracked exhaust manifolds (P/N 17420-35050) and EGR valve coking across all outputs
- 2UZ-FE: 4.7L V8 (N180, 2003-2009) - Piston ring land wear causing oil consumption; affects all 4 Runner Limited/V8 models
- 1GR-FE: 4.0L V6 (N210, 2010-present) - Head gasket leaks (P/N 11115-35120) and timing chain tensioner failure (P/N 13080-35010) in all trims
All engines maintain cross-generation compatibility within families - e.g., 1GR-FE units from 2010-2024 share identical mounting points, wiring harness interfaces, and ECU communication protocols, enabling direct swaps between SR5, TRD Off-Road, and Limited variants.
Buy Used and Second-Hand Toyota 4 Runner Engines
Used 4 Runner engines carry significant risk due to shared design flaws across generations. For 3VZ-E and 5VZ-FE units, even low-mileage examples often conceal head gasket or manifold damage. Reconditioned engines with upgraded components are strongly advised:
- 3VZ-E/5VZ-FE rebuilds: MLS head gaskets (Fel-Pro P/N HS9482PT) and ARP head studs (P/N 205-4702) to prevent recurrence
- 1GR-FE units: Updated timing chain tensioners (Toyota P/N 13080-35020) per T-SB-0039-13, plus reinforced head gaskets
- 2UZ-FE engines: Piston ring upgrades (Mahle P/N 40141400) addressing oil consumption per TSB EG-003-07
All suppliers vetted by Engine Finders adhere to Toyota’s ISTA repair standards for the *entire* 4 Runner series - ensuring compatibility and durability regardless of trim level or production year.
Toyota 4 Runner Engines in Stock
Our UK network holds reconditioned engines built to address generation-spanning weaknesses. Each unit undergoes comprehensive restoration using updated OEM-spec components:
- Cylinder head resurfacing to 0.002″ flatness tolerance (critical for 3VZ-E/1GR-FE gasket sealing)
- Timing system replacement with updated tensioners and rails (1GR-FE: P/N 13080-35020 + 13050-35030)
- EGR system cleaning and valve replacement (5VZ-FE/1GR-FE) to prevent carbon-induced misfires
- Block pressure testing at 20 psi for 30 minutes to detect micro-cracks (mandatory for all pre-2005 units)
Every engine completes 3-hour dyno validation simulating real-world 4 Runner load cycles - from low-RPM rock crawling to sustained highway cruising - with oil pressure, compression, and emissions logged against Toyota’s series-wide benchmarks.
Warranty for Replacement Toyota 4 Runner Engines
All rebuilt engines include a standard 12-month, unlimited-mileage warranty covering core mechanical failures. Coverage is uniform across the 4 Runner series, with key family-specific conditions:
- 3VZ-E/5VZ-FE: Head gasket failure covered only when ARP studs and MLS gaskets are installed
- 1GR-FE: Timing chain tensioner failure excluded if original P/N 13080-35010 is retained
- 2UZ-FE: Oil consumption claims require pre-installation compression test documentation
Engine Finders is a price comparison and referral service - warranty terms are provided by our network of UK-based engine rebuilders. Final coverage is subject to supplier assessment and installation by a certified technician. Always request the engine’s service history and dyno report prior to purchase.
Expert Tips for Choosing the Right Engine for Your Toyota 4 Runner
♻️ Toyota 4 Runner Engine Types Explained
- 1GR-FE (4.0L V6): 2003-2009, robust but thirsty; no timing belt
- 2UZ-FE (4.7L V8): 2003-2009 Limited; rare, high torque, common head gasket risk
- 1VD-FTV (4.5L V8 Turbo Diesel): 2007-2021 export only; not UK-spec
- For UK 4 Runners (2003-2009), reconditioned 1GR-FE with updated water pump (OEM 16100-31040) is recommended
£ Toyota 4 Runner Replacement Engine Cost in the UK
- Used 1GR-FE (low mileage): £1,100-£1,800 + VAT & fitment
- Reconditioned 1GR-FE w/ updated seals & pump: £2,600-£3,200
- 2UZ-FE used (rare): £2,200-£3,000; recond up to £4,500
- Engine Finders users save avg. £420 vs main dealers via bulk supplier access
🔍 Finding the Right Toyota 4 Runner Engine
- Check VIN: 4th-8th chars ‘JTEBU’, engine code on firewall plate
- 1GR-FE codes: ‘1GRFEU’ (2003-05), ‘1GRFEV’ (2006-09) - differ in emissions cal
- 2UZ-FE only in 2003-05 Limited trim (VIN 5th digit = ‘E’)
- Avoid 1GR-FEs from US desert states - early VVT-i solenoid wear common
⛽ Toyota 4 Runner Petrol vs Diesel Engines
- UK 4 Runners are petrol-only (1GR/2UZ); no diesel was ever UK-homologated
- 1GR-FE: 239-268 bhp, 278 lb-ft; ideal for off-road torque, ULEZ non-compliant
- 2UZ-FE: 235 bhp, 320 lb-ft; smoother but 20% higher fuel use than 1GR
- For London use: 1GR-FE pre-2006 faces ULEZ/CC charge; post-2006 still non-compliant
🔒 Quality Assurance & Warranty
- All recond 1GR-FEs include updated rear main seal (OEM 90311-85001)
- Cylinder heads crack-tested & resurfaced to 0.05mm flatness spec
- Oil pump gears upgraded to billet steel (Toyota TSB EG-021-07 reference)
- 24-month unlimited mileage warranty covers head gasket & water pump failure
🛒 Compare & Save on Toyota 4 Runner Engines
- Ask for ‘1GR-FE Stage 2’ recond - includes VVT-i solenoid & updated T-stat
- Avoid engines without compression test report (min 180 psi, max 20 psi variance)
- Engines with cracked exhaust manifolds (common on 2003-05) cost 15% more to fix
- Engine Finders pre-vets suppliers - 94% of quoted engines pass our 42-point 4 Runner checklist
⚙️ Toyota 4 Runner Engine Works: How Experts Rebuild Engines
When your engine fails, Toyota 4 Runner engine works can restore performance at a fraction of the cost of a brand-new engine. From diagnostics to rebuild, here's how experts ensure optimal results.
1. 4 Runner-Specific Diagnostics: Compression & leak-down tests first, then scope cam timing via VVT-i solenoid ports - critical for 1GR-FE (2003-09) where chain stretch often mimics head gasket failure.
2. Disassembly & Inspection: Block magnafluxed for hairline cracks near cylinder #1 (common in high-mileage 1GR); heads checked for warpage using Toyota-spec 0.05mm straight edge - reject if >0.10mm.
3. Component Upgrades: Water pump replaced with updated 16100-31040 (TSB EG-021-07), rear main seal with 90311-85001, and VVT-i solenoids with genuine Denso units (OEM 23390-49070).
4. Precision Reassembly: Main & rod bearings torqued to 59 Nm + 90° turn per Toyota spec; oil pump clearance set to 0.08-0.12mm - critical for 1GR’s high-flow demand during off-road use.
5. Break-in Protocol: 30-min idle at 1,200 rpm (no load), then 200-mile gentle drive with oil change - prevents premature cam wear, especially vital for early 1GR-FEs with soft cam lobes.
6. Post-Rebuild Validation: 50-point dyno & leak test: oil pressure ≥45 psi @ 3,000 rpm, no coolant ingress after 20-min heat cycle - certified via Engine Finders’ 4 Runner Rebuild Passport.