Covers Rolls-Royce Motor Cars petrol engines used across UK and European models - all BMW-sourced powertrains from the N74 V12 to the modern B58 inline-6. Each engine code includes specifications, compatible vehicles, and emissions data, sourced from official BMW Group and Rolls-Royce documentation.
Data sourced from BMW Group PT-2023, EU Regulation (EC) No 715/2007, BMW Technical Service Information (TIS), and Rolls-Royce Motor Cars Service Documentation.
Find Rolls-Royce engine codes by model, generation, or BMW engine family
| Engine Code | Fuel Type | Series | Specifications |
|---|---|---|---|
| Electric | RR-Series | View Specs | |
| Electric | RR-Series | View Specs |
All modern Rolls-Royce vehicles use BMW powertrains.
Rolls-Royce's first production electric vehicle.
Engine specifications and technical data sourced from BMW Group Technical Documentation, Rolls-Royce Motor Cars Service Manual, and EU Vehicle Type Approval Database. Consult vehicle documentation or professional guidance before undertaking mechanical work. Report errors or omissions through our contact channels.
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The engine code is essential for ordering parts, diagnosing issues, and verifying compatibility. Rolls-Royce uses BMW engine codes with Rolls-Royce-specific variant designations.
BMW-sourced identifier (e.g., N74B66) stamped on the engine block.
17-digit vehicle identification number containing encoded vehicle and engine information.
Rolls-Royce chassis designation used for registration and legal identification.
The engine code is located on a label attached to the timing cover on the front of the engine. Look for 'B58B30' or 'B58B30O1' designation. The label is white with black text.
The N74B66 engine code is stamped on the engine block near the front timing cover. Access may require removing the engine cover. The code is typically 'N74B66' for the 6.6L V12 or 'N74B68' for the 6.75L variant.
Open the bonnet and locate the engine code on the front timing cover. Early Cullinan models use N74B66 V12; newer models may use B58B30 inline-6. The code is on a white label near the timing chain housing.
The engine code is cast into the front of the engine block or on a label near the intake manifold. Look for 'N74B66' designation. The V12 engine code is visible from the front of the engine bay.
Engine code locations per BMW TIS Document A15001 – Vehicle Identification and Rolls-Royce Motor Cars Service Manual. V5C field definitions from DVLA Guide to Vehicle Registration. VIN structure compliant with EU Regulation (EC) No 715/2007, Article 7.
A technical breakdown of BMW-sourced engine systems used in Rolls-Royce vehicles including TwinPower Turbo, VALVETRONIC, timing architectures with documented reliability impacts. All data sourced from BMW Group PT-2023, BMW TIS and EU Regulation (EC) No 715/2007
The N74 is BMW's twin-turbocharged V12 engine family, extensively used across Rolls-Royce's lineup from 2008 to present. Displacements include 6.0L (N74B60), 6.6L (N74B66), and 6.75L (N74B68). Rolls-Royce-specific calibration emphasises silent, effortless power delivery.
Twin-turbocharged V12 with direct injection, VALVETRONIC variable valve lift, and Double-VANOS variable cam timing. Twin-scroll turbos provide boost with minimal lag. Rolls-Royce-specific engine management prioritises refinement over peak performance.
6.0L V12 (2008)
Initial variant
6.6L V12 (2012)
Increased displacement for Ghost, Wraith, Dawn
6.75L V12 (2018)
Phantom VIII, Cullinan - enhanced torque
High-pressure fuel pump (HPFP)
Wear at 80,000+ miles
Valve stem seals
Oil consumption at high mileage
Turbocharger wastegate
Rattle on cold start
The N74 is BMW's twin-turbocharged V12 engine family, extensively used across Rolls-Royce's lineup from 2008 to present. Displacements include 6.0L (N74B60), 6.6L (N74B66), and 6.75L (N74B68). Rolls-Royce-specific calibration emphasises silent, effortless power delivery.
Twin-turbocharged V12 with direct injection, VALVETRONIC variable valve lift, and Double-VANOS variable cam timing. Twin-scroll turbos provide boost with minimal lag. Rolls-Royce-specific engine management prioritises refinement over peak performance.
6.0L V12 (2008)
Initial variant
6.6L V12 (2012)
Increased displacement for Ghost, Wraith, Dawn
6.75L V12 (2018)
Phantom VIII, Cullinan - enhanced torque
High-pressure fuel pump (HPFP)
Wear at 80,000+ miles
Valve stem seals
Oil consumption at high mileage
Turbocharger wastegate
Rattle on cold start
All technical descriptions and failure data sourced from BMW Group Product Technical Reports, BMW TIS Service Information, Rolls-Royce Motor Cars Service Manual, and EU Regulation (EC) No 715/2007 on vehicle type-approval.
Authoritative data on Rolls-Royce Motor Cars engine sourcing, BMW Group production, and strategic partnerships. All figures sourced from BMW Group Annual Reports, Sustainability Reports, and Rolls-Royce Motor Cars production records.
Rolls-Royce Motor Cars sources all engines from BMW Group facilities, primarily Steyr (Austria) and Munich (Germany).
Rolls-Royce Motor Cars produces 5,000–7,000 vehicles annually. All engines are BMW-sourced. Note the gradual shift towards electrification with Spectre launch in 2023.
Note: Rolls-Royce Motor Cars does not manufacture engines in-house. All powertrains are BMW Group-sourced (N74 V12, B58 inline-6) with Rolls-Royce-specific calibration.
Rolls-Royce Motor Cars operates as a wholly-owned subsidiary of BMW Group since 2003. All powertrains are BMW-sourced with Rolls-Royce-specific calibration, tuning, and testing.
Developed specifically for ultra-luxury applications including Rolls-Royce
BMW modular engine adapted for Rolls-Royce refinement requirements
BMW Group Annual Report 2023, Rolls-Royce Motor Cars Corporate Information
Rolls-Royce transition from exclusively ICE to mixed ICE/EV lineup beginning 2023.
Rolls-Royce Motor Cars committed to all-electric lineup by 2030. No diesel engines offered. Current production: N74 V12, B58 inline-6, Spectre BEV.
Production data verified via BMW Group Annual Reports 2020–2023, Rolls-Royce Motor Cars Production Review, and EU type-approval records
The most common questions about engine codes, what they mean, how to find them and how this database works
Confirm the full engine designation using vehicle-specific manufacturer records and the engine marking. An engine serial number, a registration record and a marketed power badge are not automatically the same identifier. Match the VIN/build data and the installed engine before selecting parts or a replacement.
No. A factory-application reference and a replacement-interchange decision are different. Match the full engine designation, vehicle build data, emissions equipment, controls and relevant supplier/OEM information.
No. Records have different review states. Read the correction notice, source scope and application limits on the individual record. Missing technical fields must not be inferred from similar engine codes.
EngineCode.uk provides reference information about Rolls-Royce engines. It is operated by Engine Finders UK Ltd and also offers an optional replacement-engine enquiry service. Technical information can contain errors or omissions. Check the sources and verification notes for the relevant record, and confirm the details for your vehicle before buying parts or arranging work.
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