Complete OEM GA8HP75Z 8-Speed Automatic Transmission – M5 F90 / M8 F91/F92
The OEM GA8HP75Z 8-Speed Automatic Transmission is a genuine OEM high-performance automatic gearbox, designed for modern BMW, Mercedes-Benz, and other compatible vehicles using the ZF 8HP75Z transmission platform. Renowned for its smooth shifting, durability, and efficiency, this transmission ensures peak performance, reliability, and long-term operational excellence.
Core Product Identification:
Transmission Code: GA8HP75Z (M-calibrated, high-performance variant)
Source: BMW M5 F90 / BMW M8 Series
Mileage: ~55,000 km
Condition: Used – Perfect / Top Condition. No leaks, noises, or shifting issues prior to removal. Physically intact.
Completeness: Fully complete as removed, including the integrated mechatronics unit (valve body/TCU).
Features & Benefits
Genuine BMW M Performance Transmission: The exact high-torque, sport-calibrated ZF 8HP unit designed for S63/S63TÜ engines. Delivers lightning-fast shifts and handles extreme power.
Complete & Unopened: Sold as a full assembly. Includes the critical mechatronics unit (the “brain” of the transmission). No need to source separate components.
Exceptionally Low Mileage: At only ~55,000 km, this transmission is barely broken in, offering long-term reliability and performance.
Direct Replacement: The most efficient solution for replacing a failed, worn, or damaged transmission in an M5 F90 or M8.
Tested & Functional: Removed from a running, driving vehicle with no known faults.
What’s Included & Technical Specifications
(1x) Complete GA8HP75Z 8-Speed Automatic Transmission Assembly
Includes: Integrated Mechatronics Unit (Valve Body & Transmission Control Module)
Torque Capacity: Rated for the high torque output of M5/M8 engines.
Fluid: Currently contains factory-fill transmission fluid. A fluid and filter service upon installation is highly recommended.
Primary Fitment:
BMW M5 F90 (2018+)
BMW M8 Coupe/Convertible (F92/F93)
BMW M8 Gran Coupé (F91)
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The brake pads and rotors fit perfectly on my BMW X5. Installation was simple, and braking performance is quiet, smooth, and very responsive.
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My Porsche replacement transmission arrived well packaged and in excellent condition. Installation was simple, and shifting feels smooth again.
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The transmission I ordered for my Audi Q7 arrived on schedule and has performed flawlessly since installation. No leaks, no warning lights, and very smooth shifting.
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The replacement gearbox works perfectly. After several weeks of driving, shifting remains smooth and consistent.
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I ordered Ferrari seats and interior components, and the quality is absolutely outstanding. The materials and craftsmanship are top level.
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I ordered a complete set of brake pads and rotors, and the difference was noticeable immediately. Quiet braking, excellent stopping power, and easy installation.
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The transmission I ordered for my BMW M5 performs perfectly. Smooth gear changes and no warning lights after installation.
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