Dodge Challenger Engine ReplacementCompare Prices & Save

Rebuilt Dodge Challenger engine prices range from £2,200 for a 3.6L Pentastar to £15,000+ for a supercharged Hellcat unit, depending on engine code, variant and whether you choose supply-only or full supply & fit.

• 3.6L Pentastar rebuilt: £2,200-£4,200 supply only
• 5.7L HEMI rebuilt: £3,500-£6,500 supply only
• 6.4L 392 HEMI rebuilt: £5,500-£9,500 supply only
• Labour for supply & fit adds £800-£2,200 depending on garage rates

EngineMarket connects you with vetted UK specialists who stock or source rebuilt, reconditioned and used Dodge Challenger engines, including HEMI and Pentastar units with warranty coverage.

• Network includes American car specialists familiar with HEMI quirks
• All suppliers offer minimum 12-month unlimited mileage warranty
• Nationwide delivery available; many offer supply & fit services
• Enter your registration to get tailored quotes from multiple suppliers

While technically possible, a Hellcat engine swap into a V6 Challenger requires extensive modifications to wiring, ECU, cooling and drivetrain, often costing more than the engine itself.

• Hellcat ESJ/ESH engines need supercharger-specific ECU and wiring
• Cooling system, transmission and rear axle require upgrades
• UK vehicle approval (IVA) may be needed for major powertrain changes
• Most owners find replacing the original engine more cost-effective

Engine compatibility depends on your Challenger's generation and original engine code; 5.7L HEMI codes (EZH/EZD) generally interchange within 2008-2023 R/T models, while Pentastar codes (ERB/ERC) fit SXT/GT variants.

• Always match engine code to your VIN for guaranteed fitment
• 2015+ facelift models have updated electronics requiring code-matched ECUs
• 6.4L ESG and 6.2L ESJ engines are not direct swaps for 5.7L applications
• Our registration lookup instantly identifies compatible replacement options

For most Challengers valued over £12,000, replacing a failed engine with a rebuilt unit is more economical than scrapping, especially when the replacement includes upgraded components to prevent repeat failures.

• Rebuilt HEMI engines with upgraded valve seats prevent recurrence
• Pentastar replacements with updated timing components offer long-term reliability
• Supply & fit packages simplify the process for non-specialist owners
• Compare multiple quotes to find the best value for your budget

All engines supplied through EngineMarket include a minimum 12-month unlimited mileage warranty from UK specialists, with options to extend coverage for high-performance variants.

• Warranty covers parts and labour for manufacturing defects
• High-output Hellcat/Demon units may have specialist warranty terms
• Keep service records and use recommended oil to maintain coverage
• Confirm exact terms with your chosen supplier before ordering

Supply-only engines typically dispatch within 3-7 working days; full supply & fit installations require 2-4 days at a specialist garage, depending on parts availability and workshop schedule.

• Common codes like EZH and ERB often have UK stock for faster dispatch
• Performance variants (ESJ/ESH) may require longer lead times
• Pre-book supply & fit slots to minimise vehicle downtime
• Ask about courtesy car options during installation

A rebuilt 6.4L ESG HEMI typically costs £2,000-£3,000 more than a 5.7L EZH unit due to higher-performance internals, lower production volumes and specialist handling requirements.

• 6.4L engines have stronger internals but higher failure costs under hard use
• Scat Pack owners often opt for upgraded components during rebuild
• Supply & fit labour is similar for both displacements
• Compare quotes for both to assess value for your driving style

The 5.7L/6.4L HEMI suffers valve seat dropping and MDS lifter failure, while the 3.6L Pentastar is prone to timing chain tensioner wear and early-model head cracking.

• HEMI valve seat failure typically occurs 60k-100k miles
• MDS lifter collapse causes the characteristic "HEMI tick"
• Pentastar timing issues emerge 70k-110k miles on pre-2016 units
• Rebuilt engines with upgraded components address these known failures

Use full-synthetic 5W-20 oil meeting Chrysler MS-6395 specification for all HEMI and Pentastar engines; change every 5,000-7,500 miles to reduce wear on valve seats, lifters and timing components.

• Correct oil viscosity maintains MDS system pressure and HEMI longevity
• Frequent changes reduce carbon buildup that contributes to ring stick
• Use OEM or approved aftermarket filters to ensure proper flow
• Keep service records to maintain warranty coverage on rebuilt units