B-M-W S63B44 Used Car Engine X5M X6M M5 M6 4.4E71 V8 New Remanufactured

B-M-W S63B44 engine X5M X6M M5 M6 4.4E71 V8 engine New remanufactured 

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B-M-W S63B44 Remanufactured Engine – Selling Points

Category Details OEM+ Rebuild Standards Rebuilt to exceed factory specs with upgraded components for enhanced durability. Cost Savings 40–60% cheaper than a brand-new BMW S63B44 engine. Warranty Comprehensive 2–3 year/unlimited-mileage warranty (varies by supplier). Upgraded Components Critical parts (pistons, bearings, seals, turbochargers) replaced with reinforced, high-tolerance alternatives. Performance Restoration Eliminates common issues (oil leaks, timing chain wear, turbo failure) for like-new power delivery. Compatibility Direct replacement for BMW M models using the S63B44 engine (2010–2018). Precision Testing Dyno-tested and calibrated to ensure OEM-level power, torque, and emissions compliance. Sustainability Eco-friendly remanufacturing process reduces waste vs. new production. Plug-and-Play Fitment Matches factory mounts, wiring, and connections; no modifications needed. Tuning Readiness Built to handle stage 1/2 tuning upgrades (e.g., ECU remaps, increased boost).

Category Details OEM+ Rebuild Standards Rebuilt to exceed factory specs with upgraded components for enhanced durability. Cost Savings 40–60% cheaper than a brand-new BMW S63B44 engine. Warranty Comprehensive 2–3 year/unlimited-mileage warranty (varies by supplier). Upgraded Components Critical parts (pistons, bearings, seals, turbochargers) replaced with reinforced, high-tolerance alternatives. Performance Restoration Eliminates common issues (oil leaks, timing chain wear, turbo failure) for like-new power delivery. Compatibility Direct replacement for BMW M models using the S63B44 engine (2010–2018). Precision Testing Dyno-tested and calibrated to ensure OEM-level power, torque, and emissions compliance. Sustainability Eco-friendly remanufacturing process reduces waste vs. new production. Plug-and-Play Fitment Matches factory mounts, wiring, and connections; no modifications needed. Tuning Readiness Built to handle stage 1/2 tuning upgrades (e.g., ECU remaps, increased boost).

Compatibility & Applications

• BMW X5 M (F85): 2013–2018

• BMW X6 M (F86): 2014–2019

• BMW M5 (F10): 2011–2016

• BMW M6 (F12/F13): 2012–2018

• Engine Codes: S63B44 (N63-based, but with M-specific upgrades).

Description
Please note that all items labeled "used" have been used and may bear minor scratches and scuff marks. However,

they are fully functional and functional. We recommend viewing the pictures provided before purchasing to make sure

you are happy with the condition of the item.
All components are tested before or after they are removed from the vehicle. Please note that this part is a previously

installed second hand item. The items shown in the image are accurate items provided in this list, unless otherwise

stated in the item description.
Before making a purchase, make sure that the part codes and body panels you purchase match the parts of the vehicle

you are trying to repair.
Most electronic parts (ECUs, modules, headlights, etc.) may require coding/programming
If you need any additional parts, please contact us before placing your order. We will be more than happy to check if we

have any other items you may need. Discounts are available for multiple purchases.