L410 Original Mulsanne Engines
from £5,000 to £8,000
Rebuilt units from £5,000 · Common codes: L410, L410I
BENTLEY ENGINE MARKETPLACE
Bentley Mulsanne L410 V8 Specialist Engine Replacement - Compare Quotes
Get specialist quotes from UK Bentley Mulsanne engine experts. Compare reconditioned & rebuilt 6.75L V8 engines for Mulsanne to Turbo - L410 covered. Get specialist quotes for your Mulsanne.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
Modern Mulsanne Twin-Turbo Engines
from £8,000 to £15,000
Rebuilt units from £8,000 · Common codes: 6.75TT, L410TT
Mulsanne Speed Performance Engines
from £12,000 to £18,000
Rebuilt units from £12,000 · Common codes: 6.75TT, L410SP
Instant engine replacement quote - 100% free, no obligation
Engine replacement near me - UK-wide specialist network
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 Bentley Mulsanne Replacement Engineto Finding the Best Bentley Mulsanne 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
No entries match that model filter yet.
↻ Last updated: 4 Aug 26, 9:26
Customer Reviews
Trusted by Bentley Mulsanne Owners Across the UK
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Bentley Mulsanne engines through EngineMarket.
4.8
★★★★★
out of 5
1,081 verified reviews
★★★★★
“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
JJimmyGoogle
★★★★★
“Got three quotes within an hour and chose the best deal easily. The whole process was quick, clear and stress-free.”
PPeteFacebook
★★★★★
“I wasn't sure what I needed, but they helped me identify the right engine and connected me with a trusted garage.”
SSophieTrustpilot
★★★★★
“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
JJimmyGoogle
Variants We Cover
Bentley Mulsanne Engine ReplacementAll Variants Covered
Bentley Mulsanne
L410 5L Petrol
Rebuilt Engines: £5,000-£8,000
Bentley Mulsanne S
L410I 5L Petrol
Rebuilt Engines: £5,500-£8,500
Bentley Mulsanne Turbo
L410 5L Petrol
Rebuilt Engines: £6,000-£9,000
Bentley Mulsanne Modern
6.75TT 5L Petrol
Rebuilt Engines: £8,000-£12,000
Bentley Mulsanne Speed
6.75TT 5L Petrol
Rebuilt Engines: £12,000-£18,000
Bentley Mulsanne 6.75 Edition
6.75TT 5L Petrol
Rebuilt Engines: £14,000-£20,000
Not sure which variant your Bentley Mulsanne is- Enter your registration number above - we'll identify the exact sub-model, engine code and compatible replacement options instantly.
Mulsanne
Engine Codes
Bentley Mulsanne Engine CodesFull Technical Specifications & Replacement Guide
Every engine code fitted to the Bentley Mulsanne across all generations, 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 Bentley Mulsanne variants.
L410 - 6.75L Petrol
Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
Compatible variants
MulsanneMulsanne TurboMulsanne Turbo R
Avg. rebuilt price
£5,000 - £8,000
Supply only
Technical specifications
- Fuel type
- Petrol
- Engine size
- 6.75L
- Power output
- 230-300 hp
- Years fitted
- 1980-1992
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 Bentley Mulsanne engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.
Mulsanne
Common Problems
Bentley Mulsanne Engine Problems - What It Costs to Fix & When Replacement Makes Sense
The Bentley Mulsanne's legendary 6.75L V8 is robust but not immune to age-related failures. Hydrolock damage on 1987 Mulsanne S models and Bosch CIS injection issues on L410I units drive most replacement enquiries, while modern twin-turbo variants face turbo seal and fuel pump wear. Every rebuilt engine supplied through EngineMarket includes upgraded...
Bentley Mulsanne Hydrolock Damage - Why 1987 Mulsanne S Engines Fail Prematurely
Bentley Mulsanne Hydrolock Damage
Most affected vehicles
Bentley Mulsanne S (1987L410)
Bentley Mulsanne S (1987, L410)
Failure mileage range
40,000-80,000 miles (environment-dependent)
Typical failure window
Root cause
Water ingress through air intake or compromised seals floods cylinders, bending connecting rods during compression stroke.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Minor - Preventative Inspection - Water damage assessment | £800 - £1,500 | £400 - £900 | Compression test, borescope inspection, oil analysis | Only viable if caught before starting engine after water exposure |
| Intermediate - Short Block Repair - Rod/piston replacement | £4,000 - £7,000 | £2,500 - £4,500 | Replace damaged rods, pistons, bearings; machine block | Viable if crankshaft undamaged; 30-50k mile expectation |
| Full Replacement - Rebuilt L410 Engine - Complete unit swap | £8,000 - £12,000 | £5,000 - £8,000 | Supply & fit rebuilt L410 with upgraded components, bench tested | 12-month warranty; restores vehicle to reliable condition |
Our recommendation
On a classic Mulsanne worth £30,000-£60,000, a full rebuilt L410 engine offers the best long-term value and preserves vehicle integrity. Minor inspection only makes sense if hydrolock is suspected but not confirmed.
Compare rebuilt L410 engine prices for your Bentley MulsanneReplacement Engine Options
Bentley Mulsanne Engine TypesOptions, Costs & What to Expect
Every Bentley Mulsanne engine type is available through our UK network with typical price ranges based on variant, engine code and budget.
Bentley Mulsanne Reconditioned Engines (Recon)£5,000 - £15,000((supply only))
Bentley Mulsanne Rebuilt Engines£5,500 - £16,000((supply only))
Bentley Mulsanne Used Engines£3,000 - £10,000((supply only))
Bentley Mulsanne Remanufactured Engines£8,000 - £20,000((supply only))
Bentley Mulsanne Refurbished Engines£4,000 - £12,000((supply only))
Compare Bentley Mulsanne 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 Bentley Mulsanne within hours.
Engine Sizes
Bentley Mulsanne Engines by SizeFind the Right Displacement for Your Variant
Every displacement fitted to the Bentley Mulsanne is listed below, with compatible engine codes, production years and common failure notes to help you identify the correct replacement.
The 6.75-litre V8 is the only engine ever fitted to the Bentley Mulsanne across both generations, from the original 1980-1992 L410 pushrod design to the modern 2010-2020 twin-turbo evolution, making displacement identification straightforward but engine code verification critical.
⚙
Engine Code(s)
L410, L410I, 6.75TT
▣
Compatible Models (UK)
Mulsanne (1980-1987), Mulsanne S (1988-1991), Mulsanne Turbo (1982-1986), Mulsanne (2010-2020), Mulsanne Speed (2014-2020), Mulsanne 6.75 Edition by Mulliner
ϟ
Power output
Verified by registration
△
Common Failure Points
Hydrolock damage on 1987 models, Bosch CIS injection wear on L410I, turbocharger seal failure on modern twin-turbo units
Production Years: 2020
Compare Bentley Mulsanne 6.75L petrol engine pricesFuel Type
Bentley Mulsanne Engines by Fuel Type
Choose your Bentley Mulsanne engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from early L410 to the latest twin-turbo 6.75L.
Bentley Mulsanne Petrol Engines
PetrolThe Bentley Mulsanne has exclusively used petrol V8 engines throughout its production life, from the legendary pushrod L410 to the modern twin-turbo 6.75L, all sharing the iconic 6.75-litre displacement.
Common Bentley Mulsanne Petrol Engine Families
- •L410 - original pushrod V8 (1980-1992), gear-driven camshaft, known for hydrolock vulnerability on 1987 models
- •L410I - fuel-injected L410 variant (1988-1992) with Bosch K-Jetronic, prone to CIS system wear
- •6.75TT - modern twin-turbo evolution (2010-2020), 505-537hp, turbo seal and fuel pump concerns
Found In
- •Original Mulsanne generation (1980-1992) - L410, L410I
- •Modern Mulsanne generation (2010-2020) - 6.75TT twin-turbo
Known For
- •Legendary torque and smoothness across all 6.75L variants
- •Hydrolock damage risk on 1987 Mulsanne S with L410
- •Bosch CIS injection complexity on L410I requiring specialist knowledge
Typical Petrol Models
- •Mulsanne (1980-1987)
- •Mulsanne S (1988-1991)
- •Mulsanne Turbo (1982-1986)
Bentley Mulsanne Petrol Engines
PetrolThe Bentley Mulsanne has exclusively used petrol V8 engines throughout its production life, from the legendary pushrod L410 to the modern twin-turbo 6.75L, all sharing the iconic 6.75-litre displacement.
Common Bentley Mulsanne Petrol Engine Families
- •L410 - original pushrod V8 (1980-1992), gear-driven camshaft, known for hydrolock vulnerability on 1987 models
- •L410I - fuel-injected L410 variant (1988-1992) with Bosch K-Jetronic, prone to CIS system wear
- •6.75TT - modern twin-turbo evolution (2010-2020), 505-537hp, turbo seal and fuel pump concerns
Found In
- •Original Mulsanne generation (1980-1992) - L410, L410I
- •Modern Mulsanne generation (2010-2020) - 6.75TT twin-turbo
Known For
- •Legendary torque and smoothness across all 6.75L variants
- •Hydrolock damage risk on 1987 Mulsanne S with L410
- •Bosch CIS injection complexity on L410I requiring specialist knowledge
Typical Petrol Models
- •Mulsanne (1980-1987)
- •Mulsanne S (1988-1991)
- •Mulsanne Turbo (1982-1986)
Not sure which fuel type your Bentley Mulsanne 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 Bentley Mulsanne specialists.
Engine YearsGet quotes for 1980 Bentley Mulsanne replacement engines →
Bentley Mulsanne Engines by YearWhat Was Fitted & WhenBentley Mulsanne Engines by Year - What Was Fitted & When
This section covers all major engine changes across the Bentley Mulsanne's production timeline, organised so owners can quickly identify their engine and compare rebuilt engine prices from UK specialists.
⚙Key Changes
- ✓Mulsanne nameplate introduced as Bentley's luxury flagship
- ✓L410 naturally aspirated 6.75L V8 with gear-driven camshaft
- ✓Carburetted fuel system on earliest examples
▣Main Engines
L410- 6.75L petrol (Mulsanne base)
▰Popular Models
- •Bentley Mulsanne
🔧Known For
- ✓Robust low-end torque characteristic of pushrod V8 design
- ✓Carburettor tuning complexity on pre-1982 examples
- ✓Strong enthusiast community supporting original L410 maintenance
Engine Codes Covered:
L410Not sure which year your Bentley Mulsanne 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 Bentley Mulsanne specialists.
FAQ