Toyota Harrier Engine ReplacementCompare Quotes from UK Specialists

Toyota Harrier engine replacement costs range from £950 for a used 2.2L unit to £5,900 for a rebuilt hybrid powertrain, depending on engine code, condition and whether you choose supply-only or supply & fit.

• 2AZ-FE 2.4L rebuilt: £1,100-£3,200 supply-only
• 1MZ-FE 3.0L V6 rebuilt: £1,300-£3,600 supply-only
• 8AR-FTS 2.0L turbo rebuilt: £1,800-£4,500 supply-only
• A25A-FXS hybrid rebuilt: £2,400-£5,900 supply-only
• Supply & fit adds £450-£950 labour depending on garage

The 2AZ-FE 2.4L engine in XU30 Harriers has a known head bolt thread failure issue between 60k-100k miles, making it one of the least reliable engines in the range and driving high replacement demand.

• Head bolt threads pull out of aluminium block under thermal cycling
• Causes head gasket breach, coolant/oil mixing, overheating
• Rebuilt units with upgraded head bolts address the root cause
• Regular oil changes and avoiding overheating can delay failure

For reliability, the 1MZ-FE 3.0L V6 in well-maintained XU10/XU30 models or the M20A-FKS 2.0L Dynamic Force in XU80 Harriers offer the best balance of performance and longevity, avoiding the problematic 2AZ-FE.

• 1MZ-FE V6 smooth and robust if oil changes were meticulous
• M20A-FKS Dynamic Force benefits from latest engineering improvements
• Avoid pre-2001 1MZ-FE units without full service history
• Hybrid A25A-FXS efficient but complex; requires specialist servicing

Engine swaps between 2AZ-FE and 1MZ-FE in XU30 Harriers are technically possible but require ECU, wiring loom and mounting modifications, making them costly and potentially affecting MOT compliance for grey imports.

• Different engine management systems require specialist calibration
• Mounting points and ancillary layouts differ between engines
• Grey import status may complicate DVLA notification of major changes
• A rebuilt 2AZ-FE with upgraded components is usually more cost-effective

Reputable UK Toyota Harrier engine suppliers typically offer 3-12 month warranties on used engines, while rebuilt and reconditioned units from EngineMarket specialists include a minimum 12-month unlimited mileage warranty as standard.

• Used engine warranties often exclude labour and consequential damage
• Rebuilt engine warranties cover parts and often include supply & fit labour
• Always confirm warranty terms, mileage limits and claim process before purchase
• EngineMarket network suppliers are vetted for warranty honouring reliability

Supply-only engine delivery typically takes 3-5 working days from order confirmation, while full supply & fit service including removal, fitment and commissioning usually completes within 2-4 days depending on garage workload and parts availability.

• Used engines may be available for next-day dispatch if in stock
• Rebuilt engines require build time; allow 5-10 working days
• Hybrid and turbo variants may have longer lead times due to complexity
• Supply & fit turnaround depends on garage booking availability

Blue smoke from a 2AZ-FE Harrier typically indicates excessive oil consumption due to worn piston rings allowing oil to enter the combustion chamber, a common failure mode at higher mileage requiring rebuilt engine replacement.

• Oil consumption exceeding 1L/1,000 miles signals ring or bore wear
• PCV valve blockage can exacerbate oil consumption but is a simpler fix
• Compression and leak-down tests confirm ring/bore condition
• Rebuilt engines with upgraded piston rings address the root cause

Toyota Harrier hybrid engine replacement costs (£2,400-£5,900 for A25A-FXS rebuilt) are higher than standard petrol units due to complex electronics, but EngineMarket specialists offer competitive pricing with hybrid-specific expertise and warranty coverage.

• Hybrid powertrains include petrol engine, electric motors and inverter
• Inverter coolant pump failure is the most common hybrid-related issue
• Replacement requires high-voltage qualified technicians for safety
• Rebuilt hybrid units include upgraded inverter components addressing known faults

Minor repairs like head gasket replacement or HPFP change can be cost-effective for isolated faults on low-mileage Harriers, but catastrophic failures like seized bearings or warped blocks typically make rebuilt engine replacement the more reliable long-term solution.

• Head bolt repair kits can address 2AZ-FE thread failure if block is undamaged
• HPFP replacement may resolve 8AR-FTS cut-outs if cam lobe is unworn
• Piston ring replacement for oil consumption is labour-intensive and may not resolve scored bores
• Rebuilt engines include comprehensive upgrades addressing multiple potential failure points

EngineMarket connects you with vetted UK Toyota Harrier engine specialists who supply rebuilt, reconditioned and used engines with transparent pricing, 12-month warranties and optional supply & fit service nationwide.

• All network suppliers are rated and reviewed by real Harrier owners
• Compare multiple quotes side-by-side before committing
• Supply-only or full supply & fit options available depending on your needs
• Every engine includes a minimum 12-month unlimited mileage warranty