BMW M5 /M6 S63B44B engine for sale

BMW M5 /M6 S63B44B engine for sale

Product Overview

For sale is a complete BMW M5 / M6 engine, code S63B44B, with 27,000 kilometres recorded and confirmed to run perfectly. This is BMW M GmbH’s 4.4-litre twin-turbocharged V8 as fitted to the F10 M5, F06 M6 Gran Coupé, F12 M6 Coupé, and F13 M6 Cabriolet across the 2011–2017 production run — producing 412 kW (560 horsepower) and 680 Nm of torque. Supplied complete with all ancillaries.

At 27,000 kilometres, this is a genuinely low-mileage example of the S63B44B — a durable high-performance engine with a strong service life when maintained correctly. The engine has been confirmed to run perfectly, giving any buyer or workshop a high degree of confidence in its operational condition. For any M5 or M6 owner requiring a replacement, this unit provides strong remaining service life at a practical cost.

Engine Specification

About the BMW S63B44B Engine

The BMW S63 is the high-performance twin-turbocharged V8 developed by BMW M GmbH for the F10 M5 and F-series M6 — representing BMW M’s departure from the naturally aspirated philosophy of the E60-generation S85 V10. The S63B44B’s hot-vee twin-turbo layout — with both turbos positioned within the V for fast spool-up and packaging efficiency — delivers the full 680 Nm torque figure from just 1,500 rpm, providing the M5 and M6 with an instant, muscular power delivery that complements the cars’ grand touring character without compromising their outright performance credentials.

At 412 kW (560 hp), the S63B44B-powered F10 M5 achieved a 0–100 km/h time of 4.4 seconds — competitive with dedicated sports cars of its era despite being a full-size saloon. Across the M6 body variants, the same engine delivered equivalent performance with the additional character of the Gran Coupé, Coupé, and Cabriolet body styles.

The S63B44B is well regarded for durability when maintained correctly — particularly with attention to the oil separator system and regular oil changes. At 27,000km and confirmed running perfectly, this engine is at an early stage of its operational life and represents an excellent value replacement option for any of the four compatible chassis.

Ideal For

• BMW F10 M5 owners requiring a low-mileage engine replacement following failure, turbocharger issues, or oil separator damage
• BMW F06 M6 Gran Coupé, F12 M6 Coupé, and F13 M6 Cabriolet owners requiring a confirmed-running replacement S63B44B
• BMW M and performance specialist workshops sourcing a low-mileage S63B44B in verified running condition for a customer replacement
• Buyers replacing a higher-mileage or failed engine in any of the four compatible M models where a 27,000km confirmed-running unit offers excellent remaining service life
• Performance tuners working with the S63 platform who require a low-mileage core for a high-output build

Purchasing & Enquiries

This BMW M5 / M6 engine, code S63B44B, is available for immediate sale. It records 27,000 kilometres, runs perfectly, and is supplied complete. Compatible with F10 M5, F06 M6 Gran Coupé, F12 M6 Coupé, and F13 M6 Cabriolet, 2011–2017.