DB6 4.0L Standard Engines
from £8,500 to £18,000
Rebuilt units from £8,500 · Common codes: DB6/4.0, Marek L6, 3995cc
Aston Martin ENGINE MARKETPLACE
Aston Martin DB6 4.0L Classic Engine Specialist - Rebuild & Restore
Get specialist quotes from UK Aston Martin DB6 classic engine experts. Compare rebuilt & restored 4.0L straight-six engines for DB6 to DB6 Vantage. Get specialist quotes for your DB6.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
DB6 Vantage Performance Engines
from £12,000 to £28,000
Rebuilt units from £12,000 · Common codes: DB6/Vantage, 45DCOE, HC-4.0
DB6 Volante Convertible Engines
from £9,500 to £22,000
Rebuilt units from £9,500 · Common codes: DB6/Volante, Marek L6, 3995cc
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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 DB6 Replacement Engineto Finding the Best Aston Martin DB6 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
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↻ Last updated: 4 Aug 26, 9:26
Customer Reviews
Trusted by Aston Martin DB6 Owners Across the UK
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Aston Martin DB6 engines through EngineMarket.
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Variants We Cover
Aston Martin DB6 Engine ReplacementAll Variants Covered
Aston Martin DB6 Saloon
Marek L6 4.0L Petrol
Rebuilt Engines: £8,500-£15,000
Aston Martin DB6 Volante
Marek L6 4.0L Petrol
Rebuilt Engines: £9,500-£22,000
Aston Martin DB6 Mk1
Marek L6 4.0L Petrol
Rebuilt Engines: £8,500-£16,000
Aston Martin DB6 Mk2
Marek L6 4.2L Petrol
Rebuilt Engines: £10,000-£20,000
Aston Martin DB6 Vantage
Marek L6-Vantage 4.0L Petrol
Rebuilt Engines: £12,000-£28,000
Aston Martin DB6 Vantage Volante
Marek L6-Vantage 4.0L Petrol
Rebuilt Engines: £15,000-£35,000
Aston Martin DB6 Left-Hand Drive
Marek L6 Export Spec Petrol
Rebuilt Engines: £9,000-£18,000
Aston Martin DB6 Right-Hand Drive
Marek L6 UK Spec Petrol
Rebuilt Engines: £8,500-£17,000
Aston Martin DB6 SU Carburettor
Marek L6 SU HD8 Petrol
Rebuilt Engines: £8,500-£16,000
Aston Martin DB6 Weber Carburettor
Marek L6 Weber 45DCOE Petrol
Rebuilt Engines: £12,000-£28,000
Aston Martin DB6 Early Production
Marek L6 Pre-1967 Petrol
Rebuilt Engines: £8,500-£15,500
Aston Martin DB6 Late Production
Marek L6 Mk2 Spec Petrol
Rebuilt Engines: £10,000-£20,000
Not sure which variant your Aston Martin DB6 is- Enter your registration number above - we'll identify the exact sub-model, engine code and compatible replacement options instantly.
DB6
Engine Codes
Aston Martin DB6 Engine CodesFull Technical Specifications & Replacement Guide
Every engine code fitted to the Aston Martin DB6 across all production years, 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 DB6 variants.
Marek L6 / DB6-4.0 - 4.0L Petrol
Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
Compatible variants
DB6 Saloon StandardDB6 VolanteDB6 Mk1DB6 Early ProductionDB6 Right-Hand Drive UKDB6 Left-Hand Drive Export
Avg. rebuilt price
£8,500 - £15,000
Supply only
Technical specifications
- Fuel type
- Petrol
- Engine size
- 3.995L (3995cc)
- Power output
- 282 hp
- Years fitted
- 1965-1970
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 DB6 engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.
DB6
Common Problems
Aston Martin DB6 Engine Problems - What It Costs to Fix & When Replacement Makes Sense
The Aston Martin DB6's Tadek Marek straight-six is a robust grand touring engine, but oil pressure drop, timing chain wear, and cooling limitations are the three most prominent failure patterns driving replacement enquiries. Every rebuilt engine supplied through EngineMarket includes upgraded internal components designed to address the original failure...
Oil Pressure Drop - Why DB6 Main Bearings Wear Prematurely
Oil Pressure Drop
Most affected vehicles
Aston Martin DB6 SaloonVolante
Aston Martin DB6 Saloon, Volante, Mk1, Mk2 (1965-1970, Marek L6 all codes)
Failure mileage range
50,000-80,000 miles
Typical failure window
Root cause
Original main bearing clearances and oil pump capacity were marginal for sustained high-speed use; wear accelerates if oil change intervals are extended or incorrect viscosity used.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Minor - Oil System Refresh - Pump replacement, filter upgrade, flush | £1,800 - £3,200 | £1,200 - £2,100 | Replace oil pump, fit high-flow filter, flush galleries, refill with correct 20W-50 mineral oil | Temporary fix; may restore pressure for 10-20k miles if bearing wear is minimal |
| Intermediate - Bearing Replacement - Bottom-end strip, new bearings, clearances checked | £4,500 - £7,800 | £3,200 - £5,500 | Remove sump, inspect crank, fit oversized main/rod bearings, reassemble with updated clearances | Viable if crank is undamaged; requires expert machining and assembly |
| Full Replacement - Rebuilt Marek L6 Engine - Complete rebuild with upgraded components | £12,000 - £22,000 | £8,500 - £15,000 | Supply of bench-tested rebuilt engine with upgraded bearings, oil pump, and cooling provisions; includes 12-month warranty | Best long-term solution for high-mileage or performance-use DB6; eliminates recurrence risk |
Our recommendation
On a DB6 valued at £80,000-£250,000, investing in a full rebuilt engine with upgraded bearings is often more cost-effective than repeated partial repairs. If oil pressure is only slightly low and the engine is otherwise sound, a specialist bearing replacement may suffice - but get a compression test first.
Compare rebuilt Marek L6 engine prices for your Aston Martin DB6Replacement Engine Options
Aston Martin DB6 Engine TypesOptions, Costs & What to Expect
Every engine type for the Aston Martin DB6 is available through our UK network, with typical price ranges based on variant, Marek L6 engine code, and budget - from economical used units to concours-spec rebuilt engines.
Aston Martin DB6 Reconditioned Engines (Recon)£9,500 - £18,000((supply only))
Aston Martin DB6 Rebuilt Engines£10,500 - £22,000((supply only))
Aston Martin DB6 Used Engines£6,500 - £12,000((supply only))
Aston Martin DB6 Remanufactured Engines£14,000 - £28,000((supply only))
Aston Martin DB6 Refurbished Engines£4,500 - £9,500((supply only))
Compare Aston Martin DB6 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 DB6 within hours.
Engine Sizes
Aston Martin DB6 Engines by SizeFind the Right Displacement for Your Variant
Every displacement fitted to the Aston Martin DB6 is listed below, with compatible Marek L6 engine codes, production years, variant applications, and common failure notes to help you identify the correct replacement unit.
The 3995cc Tadek Marek twin-cam straight-six powered all standard DB6 Saloon and Volante models from launch in 1965 through 1970, delivering smooth 282hp grand touring character with SU or Weber carburettor options.
⚙
Engine Code(s)
Marek L6, DB6-4.0, DB6-V (Vantage)
▣
Compatible Models (UK)
DB6 Saloon Standard (1965-1970), DB6 Volante (1966-1970), DB6 Mk1 (1965-1969), DB6 Vantage
ϟ
Power output
Verified by registration
△
Common Failure Points
Oil pressure drop from bearing wear; timing chain stretch; cooling marginal for sustained high-speed use
Production Years: 1965-1970
Compare Aston Martin DB6 4.0L petrol engine pricesFuel Type
Aston Martin DB6 Engines by Fuel Type
Choose your Aston Martin DB6 engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from standard Saloon to ultra-rare Vantage Volante.
Aston Martin DB6 Petrol Engines
PetrolAll Aston Martin DB6 models were powered exclusively by Tadek Marek-designed naturally aspirated petrol straight-six engines, available in 4.0L standard and 4.2L Mk2/Vantage specifications.
Common Aston Martin DB6 Petrol Engine Families
- •Marek L6 / DB6-4.0 - Standard 4.0L twin-cam with SU or Weber carbs; powers most Saloon and Volante models
- •Marek L6-Vantage / DB6-V - High-compression 4.0L with triple Weber 45DCOE; collector-grade performance variant
- •Marek L6-4.2 / DB6-4.2 - Enlarged 4.2L for Mk2 and late Vantage; increased torque with refined character
Found In
- •DB6 Saloon / Volante (1965-1970) - Marek L6 4.0L
- •DB6 Mk2 Saloon / Volante (1969-1970) - Marek L6-4.2
- •DB6 Vantage / Vantage Volante (1965-1970) - Marek L6-Vantage 4.0L or 4.2L optional
Known For
- •Smooth, refined twin-cam straight-six character ideal for grand touring
- •Oil pressure drop from main bearing wear common after 60k miles
- •Timing chain stretch requiring preventative replacement to avoid valve damage
Typical Petrol Models
- •DB6 Saloon Standard
- •DB6 Volante Convertible
- •DB6 Mk2 Long-Wheelbase
Aston Martin DB6 Petrol Engines
PetrolAll Aston Martin DB6 models were powered exclusively by Tadek Marek-designed naturally aspirated petrol straight-six engines, available in 4.0L standard and 4.2L Mk2/Vantage specifications.
Common Aston Martin DB6 Petrol Engine Families
- •Marek L6 / DB6-4.0 - Standard 4.0L twin-cam with SU or Weber carbs; powers most Saloon and Volante models
- •Marek L6-Vantage / DB6-V - High-compression 4.0L with triple Weber 45DCOE; collector-grade performance variant
- •Marek L6-4.2 / DB6-4.2 - Enlarged 4.2L for Mk2 and late Vantage; increased torque with refined character
Found In
- •DB6 Saloon / Volante (1965-1970) - Marek L6 4.0L
- •DB6 Mk2 Saloon / Volante (1969-1970) - Marek L6-4.2
- •DB6 Vantage / Vantage Volante (1965-1970) - Marek L6-Vantage 4.0L or 4.2L optional
Known For
- •Smooth, refined twin-cam straight-six character ideal for grand touring
- •Oil pressure drop from main bearing wear common after 60k miles
- •Timing chain stretch requiring preventative replacement to avoid valve damage
Typical Petrol Models
- •DB6 Saloon Standard
- •DB6 Volante Convertible
- •DB6 Mk2 Long-Wheelbase
Not sure which fuel type your Aston Martin DB6 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 DB6 specialists.
Engine YearsGet quotes for 1965-1966 Aston Martin DB6 replacement engines →
Aston Martin DB6 Engines by YearWhat Was Fitted & WhenAston Martin DB6 Engines by Year - What Was Fitted & When
This section covers all major engine specifications across the Aston Martin DB6 production timeline (1965-1970), organised so owners can quickly identify their Marek L6 engine and compare rebuilt prices from UK specialists.
⚙Key Changes
- ✓DB6 replaces DB5; new Kamm-tail aerodynamics and longer wheelbase
- ✓Marek L6 4.0L twin-cam introduced with SU HD8 carburettors as standard
- ✓Vantage specification announced with triple Weber 45DCOE and 10.5:1 compression
▣Main Engines
MarekL6 / DB6-4.0 - 4.0L petrol (Saloon Standard, early Volante)
MarekL6-Vantage / DB6-V - 4.0L high-compression petrol (Vantage Saloon)
▰Popular Models
- •Aston Martin DB6 Saloon Standard
- •Aston Martin DB6 Volante (introduced 1966)
- •Aston Martin DB6 Vantage Saloon
🔧Known For
- ✓Early casting numbers critical for numbers-matching restoration
- ✓SU carburettors simpler to maintain than Weber but less performance-oriented
- ✓Oil pressure monitoring essential; early bearing wear patterns established
- ✓Cooling system adequate for road use but marginal for sustained high-speed touring
Engine Codes Covered:
Marek L6DB6-4.0DB6-VNot sure which year your Aston Martin DB6 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 DB6 specialists.
FAQ