Dawn 6.6L V12 Petrol Engines
from £15,000 to £42,000
Rebuilt units from £15,000 · Common codes: N74B66A, N74B66, 11002158073
Rolls Royce ENGINE MARKETPLACE
Rolls Royce Dawn N74B66A V12 Specialist Engine Replacement - Compare Quotes
Get specialist quotes from UK Rolls Royce Dawn engine experts. Compare reconditioned & rebuilt N74B66A V12 engines for Dawn to Black Badge. Get specialist quotes for your Dawn.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
Dawn V12 Short Block Units
from £8,500 to £18,000
Rebuilt units from £8,500 · Common codes: N74B66A, 11002158073, N74B66
Dawn V12 Long Block Assemblies
from £22,000 to £45,000
Rebuilt units from £22,000 · Common codes: N74B66A, N74B68A, 11002158074
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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 Rolls Royce Dawn Replacement Engineto Finding the Best Rolls Royce Dawn 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 Rolls Royce Dawn Owners Across the UK
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Rolls Royce Dawn engines through EngineMarket.
4.8
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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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★★★★★
“Got three quotes within an hour and chose the best deal easily. The whole process was quick, clear and stress-free.”
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★★★★★
“I wasn't sure what I needed, but they helped me identify the right engine and connected me with a trusted garage.”
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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
Rolls Royce Dawn Engine ReplacementAll Variants Covered
Rolls Royce Dawn
N74B66A 6.6L Petrol
Rebuilt Engines: £15,000-£35,000
Rolls Royce Dawn Black Badge
N74B66A 6.6L Petrol
Rebuilt Engines: £18,000-£38,000
Rolls Royce Dawn Final Edition
N74B66A 6.6L Petrol
Rebuilt Engines: £25,000-£45,000
Rolls Royce Dawn 2016
N74B66A 6.6L Petrol
Rebuilt Engines: £15,000-£32,000
Rolls Royce Dawn 2019
N74B66A 6.6L Petrol
Rebuilt Engines: £17,000-£36,000
Rolls Royce Dawn 2021
N74B66A 6.6L Petrol
Rebuilt Engines: £19,000-£40,000
Not sure which variant your Rolls Royce Dawn is- Enter your registration number above - we'll identify the exact sub-model, engine code and compatible replacement options instantly.
Dawn
Engine Codes
Rolls Royce Dawn Engine CodesFull Technical Specifications & Replacement Guide
Every engine code fitted to the Rolls Royce Dawn 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 Rolls Royce Dawn variants.
N74B66A - 6.6L Petrol
Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
Compatible variants
DawnDawn Black BadgeDawn Final Edition
Avg. rebuilt price
£15,000 - £35,000
Supply only
Technical specifications
- Fuel type
- Petrol
- Engine size
- 6.6L
- Power output
- 563-571 hp
- Years fitted
- 2016-2023
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 Rolls Royce Dawn engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.
Dawn
Common Problems
Rolls Royce Dawn Engine Problems - What It Costs to Fix & When Replacement Makes Sense
The Rolls Royce Dawn's exclusive N74B66A 6.6L twin-turbo V12 is engineered for refinement, but high-mileage examples can develop timing chain, turbocharger or injector issues. Every rebuilt engine supplied through EngineMarket includes upgraded internal components designed to address the original failure point - plus a minimum 12-month unlimited mileage...
Rolls Royce Dawn Timing Chain Failure - Why N74B66A V12 Engines Develop Rattles
Rolls Royce Dawn Timing Chain Failure
Most affected vehicles
Rolls Royce DawnDawn Black Badge (2016-2023
Rolls Royce Dawn, Dawn Black Badge (2016-2023, N74B66A)
Failure mileage range
60,000-90,000 miles
Typical failure window
Root cause
Plastic timing chain guide wear allows chain stretch, causing rattling on cold start and potential valve-to-piston contact if ignored.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Minor - Preventative Guide Replacement | £4,500 - £7,500 | £2,800 - £4,200 | Replace worn plastic guides and tensioners before chain stretch causes damage | Viable only if caught early; requires engine front cover removal |
| Full Replacement - Rebuilt N74B66A Engine | £38,000 - £55,000 | £15,000 - £35,000 | Supply & fit of rebuilt V12 with upgraded timing components, bench-tested, 12-month warranty | Best value for engines with existing damage or over 80k miles |
Our recommendation
If you hear a metallic rattle on cold start but the engine still runs smoothly, a preventative guide replacement may save £20k+. However, if the chain has jumped or valves are bent, only a rebuilt engine offers reliable long-term value on a Dawn worth £150k-£300k.
Compare rebuilt N74B66A engine prices for your Rolls Royce DawnReplacement Engine Options
Rolls Royce Dawn Engine TypesOptions, Costs & What to Expect
Every Rolls Royce Dawn engine type is available through our UK network with typical price ranges based on variant, N74B66A engine code and budget.
Rolls Royce Dawn Reconditioned Engines (Recon)£14,000 - £32,000((supply only))
Rolls Royce Dawn Rebuilt Engines£15,000 - £35,000((supply only))
Rolls Royce Dawn Used Engines£12,000 - £28,000((supply only))
Rolls Royce Dawn Remanufactured Engines£22,000 - £45,000((supply only))
Rolls Royce Dawn Refurbished Engines£13,500 - £30,000((supply only))
Compare Rolls Royce Dawn 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 Rolls Royce Dawn within hours.
Engine Sizes
Rolls Royce Dawn Engines by SizeFind the Right Displacement for Your Variant
Every displacement fitted to the Rolls Royce Dawn is listed below, with compatible N74B66A engine codes, production years and common failure notes for accurate replacement sourcing.
The exclusive 6.6-litre twin-turbo V12 powered every Rolls Royce Dawn from launch in 2016 through to the Final Edition in 2023, delivering effortless torque and refined performance befitting the ultra-luxury convertible segment.
⚙
Engine Code(s)
N74B66A, N74B66, 11002158073
▣
Compatible Models (UK)
Dawn (2016-2023), Dawn Black Badge (2017-2023), Dawn Final Edition
ϟ
Power output
Verified by registration
△
Common Failure Points
Timing chain guide wear, turbocharger seal degradation, high-pressure injector faults
Production Years: 2023
Compare Rolls Royce Dawn 6.6L petrol engine pricesFuel Type
Rolls Royce Dawn Engines by Fuel Type
Choose your Rolls Royce Dawn engine by fuel type to compare realistic replacement prices, known N74B66A issues, and compatible UK supply options - from the standard Dawn to the exclusive Black Badge.
Rolls Royce Dawn Petrol Engines
PetrolEvery Rolls Royce Dawn was powered exclusively by the 6.6L twin-turbo N74B66A petrol V12, making fuel-type selection straightforward but variant-year compatibility critical.
Common Rolls Royce Dawn Petrol Engine Families
- •N74B66A - exclusive Dawn V12 (2016-2023), timing chain and turbo seal wear at higher mileage
- •N74B66 - early production code variant, identical architecture to N74B66A
Found In
- •Rolls Royce Dawn (2016-2023) - N74B66A 6.6L twin-turbo V12
- •Rolls Royce Dawn Black Badge (2017-2023) - N74B66A tuned to 571hp
- •Rolls Royce Dawn Final Edition (2023) - final N74B66A specification
Known For
- •Effortless low-end torque and whisper-quiet refinement characteristic of Rolls Royce
- •Timing chain guide wear becoming apparent from 60k miles on early examples
- •High replacement demand driven by turbocharger seal and injector failures
Typical Petrol Models
- •Rolls Royce Dawn
- •Rolls Royce Dawn Black Badge
- •Rolls Royce Dawn Final Edition
Rolls Royce Dawn Petrol Engines
PetrolEvery Rolls Royce Dawn was powered exclusively by the 6.6L twin-turbo N74B66A petrol V12, making fuel-type selection straightforward but variant-year compatibility critical.
Common Rolls Royce Dawn Petrol Engine Families
- •N74B66A - exclusive Dawn V12 (2016-2023), timing chain and turbo seal wear at higher mileage
- •N74B66 - early production code variant, identical architecture to N74B66A
Found In
- •Rolls Royce Dawn (2016-2023) - N74B66A 6.6L twin-turbo V12
- •Rolls Royce Dawn Black Badge (2017-2023) - N74B66A tuned to 571hp
- •Rolls Royce Dawn Final Edition (2023) - final N74B66A specification
Known For
- •Effortless low-end torque and whisper-quiet refinement characteristic of Rolls Royce
- •Timing chain guide wear becoming apparent from 60k miles on early examples
- •High replacement demand driven by turbocharger seal and injector failures
Typical Petrol Models
- •Rolls Royce Dawn
- •Rolls Royce Dawn Black Badge
- •Rolls Royce Dawn Final Edition
Not sure which fuel type your Rolls Royce Dawn 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 Rolls Royce Dawn specialists.
Engine YearsGet quotes for 2016 Rolls Royce Dawn replacement engines →
Rolls Royce Dawn Engines by YearWhat Was Fitted & WhenRolls Royce Dawn Engines by Year - What Was Fitted & When
This section covers all major engine changes across the Rolls Royce Dawn's production timeline (2016-2023), organised so owners can quickly identify their N74B66A engine and compare rebuilt prices from UK specialists.
⚙Key Changes
- ✓Rolls Royce Dawn convertible launched, sharing platform with Wraith coupe
- ✓N74B66A V12 introduced with 563hp output and 780Nm torque
- ✓8-speed automatic transmission with satellite-aided shift calibration
▣Main Engines
N74B66A- 6.6L petrol (Dawn standard)
▰Popular Models
- •Rolls Royce Dawn
- •Rolls Royce Dawn Bespoke
🔧Known For
- ✓Exceptional refinement and effortless acceleration characteristic of Rolls Royce
- ✓Early production units may exhibit minor turbo seal weeping under hard use
- ✓Strong collector interest in first-year examples with full service history
Engine Codes Covered:
N74B66AN74B6611002158073Not sure which year your Rolls Royce Dawn 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 Rolls Royce Dawn specialists.
FAQ