McLaren 720S V8 Engine – OEM Code M840T – Compatible with 720S 4.0 V8 Turbo 527kW 717hp – 2018

McLaren 720S V8 Engine – OEM Code M840T – Compatible with 720S 4.0 V8 Turbo – 2018

Firstly, this McLaren 720S engine brings a genuine, low-mileage powertrain replacement to 720S owners needing a complete engine swap. Additionally, this listing includes an authentic 4.0-liter twin-turbo V8 pulled directly from a 2018 720S rated at 527 kW / 717 hp, carrying original code M840T and only 28,818 km of recorded use. Furthermore, buyers secure a genuine low-mileage engine in one purchase instead of risking a rebuilt unit with unknown internal wear. Moreover, this engine suits independent supercar specialists, restoration shops, and 720S owners replacing a damaged or failed engine without sourcing a full donor vehicle.

McLaren 720S Engine Components Included in This Listing

• Complete 3,994cc twin-turbo V8 engine block and internals
• Both factory turbochargers with intact intercooler piping connections
• Original wiring harness and engine control connector points
• Factory oil cooling lines and coolant hose routing intact
• Original engine mounting brackets and drivetrain coupling points
• McLaren factory identification tag confirming code M840T authenticity

Why Buyers Choose This Genuine McLaren 720S Engine

Because this is an authentic OEM unit pulled from a running 2018 720S rather than a rebuilt or remanufactured replacement, McLaren 720S V8 engine  internal tolerances, turbo matching, and factory calibration match McLaren’s original specification exactly. Meanwhile, rebuilt supercar engines from unknown sources often carry hidden wear on turbo bearings or internal components that surface after installation. As a result, this genuine low-mileage engine reduces the risk of premature failure compared to units with unverified rebuild history. Similarly, the confirmed 28,818 km reading gives buyers a clear picture of remaining service life before purchase.

Engine Characteristics and Practical Uses

• Genuine McLaren factory V8 engine, not a rebuilt or generic unit
• Low-mileage confirmed at 28,818 km from original donor vehicle
• Twin-turbo configuration delivers factory-rated 527 kW / 717 hp output
• Matches code M840T for direct compatibility without recalibration risk
• Ideal for collision repair, engine failure, or full powertrain restoration
• Sold as a complete assembly, avoiding mismatched component sourcing

Vehicle Fitment and Model Compatibility

Notably, this V8 engine fits McLaren 720S models equipped with the factory M840T engine code, produced from the 2018 model year onward. Otherwise, buyers should confirm their vehicle’s original engine code matches M840T before ordering, since McLaren engine calibration can vary across production runs and regional specifications. Also, engine mounting points and drivetrain coupling carry over directly onto compatible 720S chassis without additional fabrication.

Installation Notes and Engine Condition Details

Given the complexity of a twin-turbo supercar engine, installation should only be performed by technicians experienced with McLaren powertrains, since turbo plumbing and wiring integration require precise reconnection. Typically, engine block, turbochargers, and connectors are inspected before listing to confirm no fluid leaks or component damage. Above all, buyers should have the engine control module verified or recalibrated by a qualified McLaren technician after installation.

Shipping Standards and Purchase Assurance

Given the weight and value of a complete supercar engine, this unit ships on a secured pallet with reinforced crating and protective packaging around turbochargers and wiring. Typically, buyers receive tracking confirmation promptly once the order ships. Ultimately, this engine is verified against genuine McLaren 720S specifications, McLaren 720S V8 engine giving buyers confidence in mileage and authenticity before installation begins.