Specifications
The ZF8 transmission is an 8-speed automatic gearbox made by ZF Friedrichshafen and is commonly used in many cars and SUVs. It has eight forward gears and one reverse gear, which helps the vehicle accelerate smoothly and drive efficiently at low speeds on highways. Its smart internal gear design reduces energy loss, making it more fuel-efficient than older 6-speed automatics.
The transmission uses a torque converter with a lock-up clutch for smooth power delivery and quick gear changes, usually happening in about 0.2 seconds. It is controlled electronically to adapt to different driving conditions and works with both normal engines and hybrid systems. Different versions can handle a wide range of engine power, from small power to high performance vehicles, and its compact lightweight make it suitable for rear-wheel-drive and all-wheel-drive.
Transmission Variants
8HP45/50/51/55
The ZF 8HP45/50/51/55 transmission series is a light- to medium-duty 8-speed automatic designed to handle approximately 450–550 Nm of torque. It features a compact, lightweight design optimized for efficiency and smooth operation, making it well suited for premium sedans and crossovers. Commonly used in vehicles such as the BMW 3 Series, BMW 5 Series, Audi A4, and Audi Q5, this variant emphasizes fast, seamless shifts, reduced fuel consumption, and compatibility with modern technologies like start-stop systems.
8HP70/75/76
The ZF 8HP70/75/76 series is engineered for medium- to high-performance applications, supporting torque outputs in the 700–750 Nm range. With strengthened internal components and improved thermal capacity, it is capable of handling higher vehicle weights and more powerful engines. This transmission is widely deployed in larger SUVs and performance-oriented sedans, including Range Rover models, where it delivers a balance of durability, refined shifting, and reliable performance under demanding conditions such as towing, off-road driving, and sustained high loads.
8HP90/95
The ZF 8HP90/95 series represents the high-performance and luxury tier of the 8HP family, with a torque handling capability of approximately 900–1000 Nm. Built with heavily reinforced gears, clutch packs, and advanced cooling systems, it is designed to withstand extreme power outputs while maintaining exceptional smoothness and responsiveness. This variant is found in flagship vehicles such as the BMW M5, Rolls-Royce models, and the Range Rover SVR, where it provides rapid shift times, high durability, and the refinement expected in top-tier performance and luxury applications.
Frequently Asked Questions
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What vehicles use the ZF8 Gearbox?
The ZF8 Gearbox is used in models from BMW, Dodge, Audi, Jaguar, Land Rover, and Jeep from 2010 onward.
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Is the ZF8 transmission available in used or rebuilt condition?
Yes, we offer tested used and professionally rebuilt ZF8 transmissions, each inspected for OEM standards.
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What are the main ZF8 variants?
Common variants include 8HP45, 8HP70, 8HP75, 8HP90, 8HP95, designed for different torque and engine setups.
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Does the ZF8 transmission improve performance?
Absolutely — it offers faster gear shifts, better fuel economy, and a smoother driving experience across all speeds.
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Do ZF8 transmissions come with a warranty?
Yes, every ZF8 includes a limited parts warranty for added peace of mind.
ZF8 Transmission