Rolls Royce Phantom VII N73B68 V12 Specialist Engine ReplacementCompare Quotes

A rebuilt N73B68 engine for the Phantom VII typically costs £4,200-£5,800 supply only, or £14,000-£20,000 fully rebuilt with warranty. Supply & fit services range from £12,995-£18,000 including specialist labour.

• Supply-only rebuilt N73B68 engines start from £4,200
• Fully rebuilt units with upgraded components cost £14,000-£20,000
• Supply & fit service adds £8,000-£12,000 for specialist labour
• All EngineMarket suppliers include minimum 12-month unlimited mileage warranty

All Rolls Royce Phantom VII variants (2003-2017) use the BMW-sourced N73B68 6.75L V12 petrol engine, with suffix variants N73B68A, N73B68B and N73B68C denoting production updates.

• Base engine code: N73B68 6.75L naturally aspirated V12
• N73B68A: Early production (2003-2008) with Bosch Motronic
• N73B68B: Facelift models (2009-2012) with updated ECU
• N73B68C: Final production (2012-2017) with Valvetronic refinements

The N73B68 engine commonly experiences Double VANOS failure before 150,000 km, timing chain stretch after 150,000 km, and Valvetronic actuator issues causing low-speed vibrations.

• Double VANOS solenoid/actuator wear causes rattling and power loss
• Timing chain stretch leads to cold-start rattles and potential valve damage
• Valvetronic motor or sensor faults create rough idle and vibration
• Direct injection coking requires walnut blasting every 50,000 miles

Given Phantom VII values of £35,000-£70,000, a £14,000-£20,000 rebuilt N73B68 engine with warranty is often economically viable compared to vehicle depreciation or scrappage.

• Phantom VII residual values support investment in quality rebuilt engines
• Rebuilt N73 with warranty offers better long-term value than repeated repairs
• Supply & fit service simplifies the process with single-point responsibility
• EngineMarket specialists understand Phantom VII complexity and warranty requirements

Yes, the N73B68 long block is shared with the BMW E66 760Li, but Phantom-specific ancillaries, wiring and ECU coding require specialist adaptation for successful installation.

• N73B68 cylinder block, heads and internals are cross-compatible
• Phantom-specific ancillaries (alternator, AC compressor) differ from BMW
• ECU coding and immobiliser integration require Rolls-Royce specialist tools
• EngineMarket suppliers verify compatibility before dispatch to avoid fitment issues

With proper maintenance, N73B68 engines can achieve 200,000+ miles. Key service items include timing chain inspection at 150,000 km and regular walnut blasting for direct injection coking.

• Regular oil changes with 5W-40 fully synthetic are critical for longevity
• Timing chain and VANOS components require attention around 150,000 km
• Direct injection coking management via walnut blasting every 50,000 miles
• Specialist servicing extends life beyond typical high-mileage failure points

The N73B68 requires 5W-40 fully synthetic oil meeting BMW Longlife-01 specification, with a capacity of 8.5 litres including filter change.

• Use 5W-40 fully synthetic oil meeting BMW Longlife-01 spec
• Total capacity: 8.5 litres including filter replacement
• Oil change interval: 10,000 miles or 12 months whichever comes first
• Regular oil analysis recommended for high-mileage N73 engines

Yes. All reconditioned and rebuilt N73B68 engines supplied through EngineMarket include a comprehensive 12-month unlimited mileage warranty from UK specialists.

• Minimum 12-month unlimited mileage warranty on all rebuilt units
• Warranty covers parts and labour at any UK specialist workshop
• Compression test results and build documentation provided with each engine
• Extended warranty options available through select suppliers

Typical N73B68 replacement takes 5-7 working days due to V12 complexity, specialist tooling requirements and ECU coding procedures at Rolls-Royce trained workshops.

• Engine removal and installation requires specialist lifting equipment
• ECU coding and adaptation reset essential for proper operation
• Road testing and final quality checks add 1-2 days to timeline
• Supply & fit bookings should be scheduled in advance with specialists

Yes. EngineMarket suppliers offer cash for broken N73B68 engines as part of core exchange programmes, reducing your net replacement cost when upgrading to a rebuilt unit.

• Core exchange credit typically £500-£1,500 depending on engine condition
• Broken engines must be complete with no major external damage
• Core collection arranged nationwide to simplify the exchange process
• Core value applied directly to your rebuilt engine invoice