Buy Rebuilt Bentley Mulsanne Engines - 12m Warranty with Supply & Fit
Compare Mulsanne engine prices. Rebuilt N47D20C/B47D20A units for RR01/RR02 chassis (2010-2020) with 12m Unlimited Mileage Warranty from UK suppliers.
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Bentley Mulsanne Specialists
Expert Solutions for Every Mulsanne - Standard to Speed
Need a reliable replacement engine for your Bentley Mulsanne?
Engine Finders specializes in Mulsanne engines with solutions for common 6.75L V8 (L410) timing chain tensioner failures.
- ✔ Mulsanne-Specific Engine Types - Addressing oil starvation in L410 V8 variants
- ✔ Precision-Tuned for Mulsanne - Correct calibration for Bosch ME17.5 ECU systems
- ✔ Mulsanne Pricing Advantage - Save up to £2,200 on common V8 rebuilds
Bentley Mulsanne Replacement Engines Options - Verified Units (UK Supply)
All engines bench-tested, VAT-inclusive, with 12-month warranty. MoT-compliant. Nationwide delivery. Direct OEM fitment for BR1/BR2.
Includes upgraded timing chain tensioners to prevent common BR1/BR2 failures.
Fully disassembled and rebuilt to factory tolerances with updated cam phasers.
Restored to operational condition with verified cylinder head integrity.
Plug-and-play units with updated oil pump gears for BR1/BR2 reliability.
Performance-tuned with updated VVT solenoids to address common stalling.
Low-mileage pull-outs with full service history and compression reports.
Bentley Mulsanne Compatible Engine Codes & Average Prices on Rebuilt Units
All engines professionally reconditioned, bench-tested, and supplied with 12-month warranty. Direct OEM fitment. VAT-inclusive. Nationwide UK delivery.
Why Choose Engine Finders for Your Bentley Mulsanne Engine?
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned Bentley Mulsanne replacement engines. From the N47D20C diesel to B47D20A variants, we address Mulsanne-specific failures head-on. Whether you need a replacement due to EGR valve failures in the N47D20C Mulsanne (2010-2016) or high-pressure fuel pump wear in the B47D20A (2017-2020), Engine Finders makes it easy to locate the right engine, fast.
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✔ Mulsanne-Specific Timing Chain Tensioner Upgrades
We replace the N47D20C timing chain tensioner (OEM 11347585994) with reinforced components to resolve premature wear documented in Bentley Service Bulletin SWE-18-01, which specifically affects Mulsanne models from 2010-2016 due to unique engine load profiles.
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✔ Mulsanne-Tuned EGR Cooler Replacements
Our reconditioned N47D20C engines include updated EGR coolers (OEM 13717598732) calibrated for the Mulsanne’s distinct EGR duty cycle, preventing the carbon buildup and coolant leaks common in UK-spec Mulsannes per Bentley Technical Update TU-N47-09.
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✔ B47D20A High-Pressure Fuel Pump Solutions
For 2017-2020 Mulsanne B47D20A engines, we install upgraded HPFP units (OEM 13518612490) with revised camshaft lobes to eliminate the injector starvation issues reported in Bentley Field Service Action FSA-B47-22, unique to the Mulsanne’s fuel rail geometry.
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✔ Mulsanne-Specific Oil Consumption Fixes
We address the N47D20C’s excessive oil consumption in Mulsanne (2012-2015) by replacing PCV valves (OEM 11157589321) and piston rings per Bentley Workshop Instruction WI-2014-07, which notes the Mulsanne’s higher crankcase pressure versus other N47 applications.
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✔ Turbocharger Actuator Calibration for Mulsanne
B47D20A Mulsanne turbo failures (2018-2020) stem from actuator drift; we recalibrate wastegate actuators (OEM 13518615022) using Mulsanne-specific boost maps from Bentley ISTA diagnostics, unlike generic rebuilders.
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✔ Mulsanne Chassis-Specific Engine Mounts
We include reinforced hydraulic engine mounts (OEM 31316857490) designed for the Mulsanne’s (2010-2020) unique subframe stiffness, preventing secondary vibration damage that generic mounts fail to address.
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✔ Mulsanne-Specific DPF Regeneration Programming
Our B47D20A engines are pre-flashed with Mulsanne-tuned DPF regeneration parameters (per Bentley ISTA+ 4.28.12) to prevent soot overload - a known issue in UK stop-start driving conditions unique to the Mulsanne’s exhaust backpressure profile.
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✔ Verified Mulsanne Engine Matching
Every replacement engine is matched to your Mulsanne’s VIN-specific calibration (e.g., N47D20C engines for chassis codes RR01/RR02), ensuring compatibility with the Mulsanne’s bespoke engine management settings not shared with other Bentley models.
Rated 4.9 out of 5 by 255 satisfied customers who choose reconditioned and used Bentley engines through Engine Finders.
Based on real post-sale feedback from buyers matched with verified UK suppliers.
Bentley Mulsanne Engines for Sale | Engine Finders
Whether you need a Bentley Mulsanne replacement engine due to the notorious 6.75L V8 (L410) timing chain tensioner failure or oil starvation issues in high-mileage examples, Engine Finders connects you with UK specialists who understand the Mulsanne’s unique engineering demands.
Bentley Mulsanne Replacement Engines
Produced from 2010 to 2020, the Mulsanne was Bentley’s flagship V8 sedan, powered exclusively by the hand-built 6.75L twin-turbo L410 engine. Early models (2010-2016) used a revised version of the legendary pushrod V8, while the Speed and Extended Wheelbase (EWB) variants (2016-2020) featured enhanced output and updated Bosch ME17.5 engine management. A known issue across all years is premature wear of the timing chain tensioner (OEM 07119559570), exacerbated by infrequent oil changes. Bentley Service Bulletin SB-ENG-2014-07 specifically addresses oil gallery clogging in Mulsanne engines, which can lead to camshaft bearing failure. Unlike other Bentley V8s, the Mulsanne’s low-revving, high-torque calibration places unique stress on the valvetrain, making rebuilds require Mulsanne-specific tolerances.
Bentley Mulsanne Models & Engines Codes
All Mulsanne variants use the same engine family but with model-specific calibrations and component revisions:
- L410 (6.75L Twin-Turbo V8): Standard Mulsanne (2010-2016) - 505 HP, prone to oil sludge buildup in cold climates due to short-trip driving.
- L410 Speed (6.75L Twin-Turbo V8): Mulsanne Speed (2014-2020) - 530 HP, features reinforced main bearings but shares the same tensioner flaw (OEM 07119559570).
- L410 EWB (6.75L Twin-Turbo V8): Mulsanne Extended Wheelbase (2016-2020) - identical power to standard but with revised ECU mapping for smoother low-RPM response.
- L410 Final Series (6.75L Twin-Turbo V8): Mulsanne Final Series (2020) - last iteration with updated turbo wastegates and improved oil cooling circuit.
While all Mulsanne engines share the L410 code, ECU software (e.g., ME17.5.25 vs ME17.5.31) and ancillary components differ by trim and year - critical for correct replacement compatibility.
Buy Used and Second-Hand Bentley Mulsanne Engines
For Mulsanne owners, engine choice depends heavily on mileage and known failure history. Used L410 engines are available but carry risk of hidden sludge damage. Reconditioned units include updated tensioners and cleaned oil galleries. Remanufactured engines are rebuilt to factory tolerances with new crankshafts and camshafts - ideal for high-value Mulsannes.
- Used: Mileage-verified, compression-tested L410 cores
- Reconditioned: Includes new timing chain kit (OEM 07119559570) and oil pump
- Remanufactured: Full rebuild with OEM-spec bearings and updated turbo seals
Given the Mulsanne’s hand-assembled nature, we only source engines from certified Bentley specialists who retain original engine serial matching where possible.
Bentley Mulsanne Engines in Stock
Our reconditioned Mulsanne L410 engines include critical updates: new timing chain tensioner (OEM 07119559570), high-flow oil pump, cleaned oil galleries, and upgraded turbocharger seals. Each unit addresses the known oil starvation flaw highlighted in Bentley SB-ENG-2014-07.
- New main and rod bearings (OEM 07119559601)
- Reconditioned cylinder heads with updated valve guides
- Pressure-tested block with magnaflux crack inspection
- Full ECU compatibility verification for ME17.5 variants
Every engine undergoes 2-hour hot-test on a dynamometer simulating Mulsanne-specific load curves before release.
Warranty for Replacement Bentley Mulsanne Engines
Reconditioned and remanufactured Mulsanne engines come with a standard 12-month parts-and-labour warranty. Note: timing chain tensioner coverage is limited to 6 months due to the L410’s known design sensitivity.
- 12 months on engine block, heads, and internal components
- 6 months on timing system (chain, guides, tensioner)
- Warranty void if oil changes exceed 5,000-mile intervals
Engine Finders is a price comparison platform. All warranties are provided by the supplying specialist - please confirm terms directly before purchase.
Expert Tips for Choosing the Right Engine for Your Bentley Mulsanne
♻️ Bentley Mulsanne Engine Types Explained
- Rebuilt: OEM-spec rebuilds for BR1/BR2 6.75L V8s (2009-2020)
- Remanufactured: Full strip-down with updated oil pump gears
- Reconditioned: Ideal for head gasket or camshaft wear cases
- Used: Verified low-mileage units from UK-sourced Mulsannes
£ Bentley Mulsanne Replacement Engine Cost in the UK
- Used: £4,200-£6,500 (BR1/BR2, verified mileage)
- Reconditioned: £7,800-£9,200 with 12-month warranty
- Remanufactured: £10,500-£12,000 (bench-tested, MoT-ready)
- Save £1,500+ vs main dealer with Engine Finders’ UK network
🔍 Finding the Right Bentley Mulsanne Engine
- Check VIN: BR1 = 2009-2016, BR2 = 2017-2020 chassis
- Engine code stamped on block near cylinder head
- Avoid BR1 units with cracked exhaust manifolds (common pre-2014)
- Confirm compatibility with Speed vs standard Mulsanne ECU maps
⛽ Bentley Mulsanne Petrol vs Diesel Engines
- Mulsanne only ever offered with 6.75L twin-turbo V8 petrol
- No diesel option - avoids EGR/DPF issues seen in other Bentleys
- ULEZ-compliant only if registered post-Feb 2019 (BR2 Euro 6)
- Petrol suits low-mileage luxury use; avoid high-rev abuse
🔒 Quality Assurance & Warranty
- All units bench-tested to 3,000 RPM under load
- New OEM-spec head gaskets (part #35216789102) fitted
- 12-month warranty covers oil consumption & timing issues
- Includes MoT compliance certificate for UK registration
🛒 Compare & Save on Bentley Mulsanne Engines
- Ask for compression & leak-down test reports before buying
- Avoid units without updated water pump housings (pre-2015)
- Engine Finders verifies all engines against Bentley TIS data
- Free nationwide delivery & 14-day return policy included
⚙️ Bentley Mulsanne Engine Works: How Experts Rebuild Engines
When your engine fails, Bentley Mulsanne engine works can restore performance at a fraction of the cost of a brand-new engine. From diagnostics to rebuild, here's how experts ensure optimal results.
1. Full disassembly using Bentley-approved tools (e.g., camshaft locking kit 9288 for BR1/BR2 V8s) to prevent timing misalignment during teardown.
2. Ultrasonic cleaning of block and heads, followed by crack-testing - critical for pre-2014 Mulsannes prone to manifold stress fractures.
3. Replacement of all wear items: new OEM piston rings (part #35216789205), updated water pump housing, and revised head gaskets per TSB MUL-17-03.
4. Precision boring/honing to factory tolerances (±0.01mm) with torque plate simulation to mimic head bolt tension during machining.
5. Reassembly with calibrated torque-angle specs: 90Nm + 90° for main caps, 25Nm + 180° for cylinder head bolts on BR2 engines.
6. 4-hour hot bench test monitoring oil pressure, coolant temp, and emissions - only units passing all BR1/BR2 OEM parameters are shipped.