Valhalla M178 V8 Engines
from £45,000 to £95,000
Rebuilt units from £45,000 · Common codes: M178, M178LS, M178DE40
Aston Martin ENGINE MARKETPLACE
Aston Martin Valhalla 4.0L V8 Hybrid Specialist Engine - Compare Quotes
Get specialist quotes from UK Aston Martin Valhalla engine experts. Compare hybrid & V8 solutions for the 828PS 4.0L twin-turbo. Find UK hybrid performance specialists.
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12-Month Warranty
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Valhalla PHEV Hybrid Systems
from £28,000 to £65,000
Rebuilt units from £28,000 · Common codes: HMU-VAL, EISG-AMG, BAT-6.1
Valhalla Electric Drive Units
from £12,000 to £35,000
Rebuilt units from £12,000 · Common codes: EM-FRT, EM-RR, EM-REV
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Compare reconditioned, rebuilt & used engine prices
Supply & fit available - parts and labour from vetted specialistsInstant engine replacement quote - 100% free, no obligationEngine replacement near me - UK-wide specialist networkCompare reconditioned, rebuilt & used engine pricesSupply & fit available - parts and labour from vetted specialistsHow It Works
3 Simple Steps3 Simple Stepsto Finding the Best Aston Martin Valhalla Replacement Engineto Finding the Best Aston Martin Valhalla Replacement Engine
12-Month Warranty
Supply & Fit Available
Nationwide Delivery
Trusted UK Suppliers
Most replacements completed within 3-5 days.
Live UK Engine Market Data
Average Market Prices
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↻ Last updated: 4 Aug 26, 9:26
Customer Reviews
Trusted by Aston Martin Valhalla Owners Across the UK
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Aston Martin Valhalla engines through EngineMarket.
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“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
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Variants We Cover
Aston Martin Valhalla Engine ReplacementAll Variants Covered
Aston Martin Valhalla Production Model
M178 4.0L Petrol
Rebuilt Engines: £45,000-£95,000
Aston Martin Valhalla Track Specification
M178 4.0L Petrol
Rebuilt Engines: £48,000-£98,000
Aston Martin Valhalla Road Specification
M178 4.0L Petrol
Rebuilt Engines: £45,000-£95,000
Aston Martin Valhalla Left-Hand Drive
M178 4.0L Petrol
Rebuilt Engines: £46,000-£96,000
Aston Martin Valhalla Right-Hand Drive
M178 4.0L Petrol
Rebuilt Engines: £45,000-£95,000
Aston Martin Valhalla PHEV Hybrid System Replacement
HMU-VAL Hybrid
Rebuilt Engines: £28,000-£65,000
Aston Martin Valhalla Front Electric Motor Replacement
EM-FRT Electric
Rebuilt Engines: £15,000-£38,000
Aston Martin Valhalla Rear Electric Motor Replacement
EM-RR Electric
Rebuilt Engines: £16,000-£40,000
Aston Martin Valhalla Reverse Electric Motor Replacement
EM-REV Electric
Rebuilt Engines: £12,000-£35,000
Aston Martin Valhalla Integrated Starter Generator Replacement
EISG-AMG Hybrid
Rebuilt Engines: £8,000-£22,000
Aston Martin Valhalla 6.1kWh Battery Pack Replacement
BAT-6.1 Phev
Rebuilt Engines: £18,000-£48,000
Aston Martin Valhalla Power Electronics Module Replacement
PEM-VAL Hybrid
Rebuilt Engines: £14,000-£38,000
Not sure which variant your Aston Martin Valhalla is- Enter your registration number above - we'll identify the exact sub-model, engine code and compatible replacement options instantly.
Valhalla
Engine Codes
Aston Martin Valhalla Engine CodesFull Technical Specifications & Replacement Guide
Every engine code fitted to the Aston Martin Valhalla across its limited 999-unit production run, with technical specs, compatible variants and trims, known failure points, and average rebuilt prices from UK specialists. Select any engine code to compare quotes.
Petrol Engines
Extracted from detailed petrol and performance engine families across Aston Martin Valhalla variants.
M178 - 4.0L Petrol
Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
Compatible variants
Valhalla Production ModelValhalla Road SpecificationValhalla Track SpecificationValhalla Left-Hand DriveValhalla Right-Hand Drive
Avg. rebuilt price
£45,000 - £95,000
Supply only
Technical specifications
- Fuel type
- Petrol
- Engine size
- 4.0L
- Power output
- 740-760 hp
- Years fitted
- 2025-2026
Common failures
- ●Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
- ●Confirm exact engine code and fitment before ordering.
- ●Ask for warranty and supply & fit terms.
Not sure which engine code?
Can't find your engine code- Enter your registration number above - we'll instantly identify the exact unit, its technical specifications, and live replacement prices from UK Aston Martin Valhalla engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.
Valhalla
Common Problems
Aston Martin Valhalla Engine Problems - What It Costs to Fix & When Replacement Makes Sense
The Aston Martin Valhalla's complex PHEV powertrain combines a Mercedes-AMG M178 twin-turbo V8 with three electric motors, creating unique failure patterns still being documented. Every rebuilt engine supplied through EngineMarket includes upgraded internal components designed to address original failure points - plus a minimum 12-month unlimited mileage...
Hybrid System Warning Light - Why Valhalla PHEV Faults Trigger Early Concerns
Hybrid System Warning Light
Most affected vehicles
Aston Martin Valhalla Production ModelTrack Specification
Aston Martin Valhalla Production Model, Track Specification, Road Specification (2025-2026, HMU-VAL, BAT-6.1)
Failure mileage range
1,000-5,000 miles (early production software calibration concerns)
Typical failure window
Root cause
Complex interaction between M178 V8, three electric motors, and 6.1kWh battery can trigger false warning lights during early production calibration.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Minor - Software Recalibration | £2,500 - £4,500 | £1,200 - £2,800 | Dealer-level diagnostic reset and hybrid control module software update | Resolves false warnings; suitable for early-production vehicles under warranty |
| Intermediate - Control Module Replacement | £18,000 - £35,000 | £12,000 - £24,000 | Replace faulty hybrid management unit with recalibrated specialist unit | Addresses hardware faults; 12-month warranty on replacement component |
| Full Replacement - Rebuilt Hybrid System | £65,000 - £120,000 | £28,000 - £65,000 | Complete rebuilt PHEV integration unit with upgraded thermal management | Long-term solution for high-mileage or track-focused Valhalla use |
Our recommendation
For Valhalla owners seeing hybrid warning lights under 5,000 miles, start with specialist software diagnostics before committing to hardware replacement. Early-production calibration issues are often resolvable without major component replacement.
Compare rebuilt HMU-VAL hybrid system prices for your Aston Martin ValhallaReplacement Engine Options
Aston Martin Valhalla Engine TypesOptions, Costs & What to Expect
Every Valhalla powertrain component is available through our UK network with typical price ranges based on variant, engine code and budget.
Aston Martin Valhalla Reconditioned Engines (Recon)£45,000 - £95,000((supply only))
Aston Martin Valhalla Rebuilt Engines£48,000 - £98,000((supply only))
Aston Martin Valhalla Used Engines£35,000 - £75,000((supply only))
Aston Martin Valhalla Remanufactured Engines£52,000 - £105,000((supply only))
Aston Martin Valhalla Refurbished Engines£28,000 - £65,000((supply only))
Compare Aston Martin Valhalla engine prices with vetted UK suppliers
All engine types include a minimum 12-month unlimited mileage warranty when sourced through EngineMarket. Prices are typical UK market ranges based on historical quote data from our network and depend on exact engine code, variant, mileage and supplier. Use our free comparison tool above - enter your registration to get tailored quotes for your specific Aston Martin Valhalla within hours.
Engine Sizes
Aston Martin Valhalla Engines by SizeFind the Right Displacement for Your Variant
Every displacement fitted to the Aston Martin Valhalla is listed, with compatible engine codes, years and common failure notes for this limited-production PHEV hypercar.
The Valhalla's sole combustion engine is the Mercedes-AMG M178 4.0L twin-turbo V8, specially calibrated for Aston Martin's mid-engine PHEV architecture and producing 740-760hp depending on specification.
⚙
Engine Code(s)
M178, M178LS, M178DE40
▣
Compatible Models (UK)
Valhalla Production Model (2025-2026), Valhalla Track Specification (2025-2026), Valhalla Road Specification
ϟ
Power output
Verified by registration
△
Common Failure Points
Turbocharger bearing wear on track use; high-pressure fuel pump degradation at high mileage
Production Years: 2025-2026
Compare Aston Martin Valhalla 4.0L petrol engine pricesFuel Type
Aston Martin Valhalla Engines by Fuel Type
Choose your Aston Martin Valhalla engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from the M178 V8 to the unique PHEV integration system.
Aston Martin Valhalla Petrol Engines
PetrolThe Valhalla's sole combustion powerplant is the Mercedes-AMG M178 4.0L twin-turbo V8, specially calibrated for mid-engine PHEV integration and producing up to 760hp.
Common Aston Martin Valhalla Petrol Engine Families
- •M178 - Valhalla's primary V8 (740-760hp), turbo bearing wear on track use
- •M178LS - Track-specification calibration, elevated thermal demands
Found In
- •Valhalla Production Model (2025-2026) - M178
- •Valhalla Track Specification (2025-2026) - M178LS
Known For
- •Exceptional power-to-weight ratio in mid-engine layout
- •Turbocharger bearing sensitivity under repeated high-RPM use
- •High-pressure fuel system requiring precise maintenance intervals
Typical Petrol Models
- •Valhalla Production Model
- •Valhalla Track Specification
- •Valhalla Road Specification
1 of 2
Aston Martin Valhalla Petrol Engines
PetrolThe Valhalla's sole combustion powerplant is the Mercedes-AMG M178 4.0L twin-turbo V8, specially calibrated for mid-engine PHEV integration and producing up to 760hp.
Common Aston Martin Valhalla Petrol Engine Families
- •M178 - Valhalla's primary V8 (740-760hp), turbo bearing wear on track use
- •M178LS - Track-specification calibration, elevated thermal demands
Found In
- •Valhalla Production Model (2025-2026) - M178
- •Valhalla Track Specification (2025-2026) - M178LS
Known For
- •Exceptional power-to-weight ratio in mid-engine layout
- •Turbocharger bearing sensitivity under repeated high-RPM use
- •High-pressure fuel system requiring precise maintenance intervals
Typical Petrol Models
- •Valhalla Production Model
- •Valhalla Track Specification
- •Valhalla Road Specification
Aston Martin Valhalla Hybrid / Electrified Engines
MHEVThe Valhalla's PHEV architecture combines the M178 V8 with three electric motors and a 6.1kWh battery, delivering 1,079 PS combined output and unique reverse-drive functionality.
Aston Martin Valhalla PHEV Engine Codes
- •HMU-VAL - Hybrid management unit controlling power distribution
- •EM-REV - Exclusive reverse-drive electric motor (no mechanical reverse)
- •BAT-6.1 - 6.1kWh battery pack providing ~9 miles EV range
Found In
- •All Valhalla production variants (2025-2026)
Important Notes
- •Hybrid system replacement requires Valhalla-specialist calibration equipment
- •EM-REV reverse motor is Valhalla-exclusive with no cross-model compatibility
- •Battery replacement cost is a key long-term ownership consideration
Not sure which fuel type your Aston Martin Valhalla has- Enter your registration number above to instantly identify your engine code, fuel system and compatible replacement options - all backed by a minimum 12-month unlimited mileage warranty from UK Aston Martin Valhalla specialists.
Engine YearsGet quotes for 2025-2026 Aston Martin Valhalla replacement engines →
Aston Martin Valhalla Engines by YearWhat Was Fitted & WhenAston Martin Valhalla Engines by Year - What Was Fitted & When
This section covers all major engine changes across the Valhalla's limited 2025-2026 production timeline, organised so owners can quickly identify their powertrain and compare rebuilt prices from UK specialists.
⚙Key Changes
- ✓First production Valhalla units delivered to customers
- ✓M178 V8 specially calibrated for Valhalla's mid-engine PHEV architecture
- ✓Unique no-mechanical-reverse design implemented via EM-REV electric motor
- ✓Limited production run of 999 units globally commenced
▣Main Engines
M178- 4.0L twin-turbo petrol V8 (Valhalla Production Model)
HMU-VAL- Hybrid management unit with three electric motors
EM-REV- Exclusive reverse-drive electric motor
▰Popular Models
- •Aston Martin Valhalla Production Model
- •Aston Martin Valhalla Track Specification
- •Aston Martin Valhalla Road Specification
🔧Known For
- ✓Unprecedented powertrain complexity for Aston Martin
- ✓Early-production software calibration concerns for hybrid system
- ✓Turbocharger bearing sensitivity under track-focused use
- ✓Unique reverse-drive mechanism creating single-point failure risk
Engine Codes Covered:
M178M178LSHMU-VALEM-FRTEM-RREM-REVEISG-AMGBAT-6.1Not sure which year your Aston Martin Valhalla was built- Enter your registration number and we'll identify the exact engine, model year, and compatible replacement options instantly - all backed by a minimum 12-month warranty from UK Aston Martin Valhalla specialists.
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