Volkswagen Transporter T5 2.5 TDI Automatic Gearbox KFF 09K300036AX WARRANTY

Listing details

The gearboxes are sold with a 90-day warranty! They were tested before removal and are in full working order.

Volkswagen Transporter T5 2.5 TDI Automatic Gearbox KFF is a factory-original, used automatic transmission designed for diesel units in the popular Volkswagen commercial vehicle model. It offers stable drivetrain operation, smooth gear shifting, and is perfectly matched to the characteristics of the diesel engine, resulting in comfortable and predictable performance. By maintaining the manufacturer's standards, this is a particularly attractive solution for users seeking a proven design that complies with factory specifications.

Specifications and technical data

• SKU: 09K300036AX
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 09K300036AX
• Substitutable numbers: 09K300036AX, 09K 300 036 AX
• Fuel type: Diesel
• Gearbox type: Automatic
• Part type: Automatic Transmission
• Category: Automatic Transmission

Purpose and technical characteristics

The presented transmission belongs to the Automatic gearboxes category and has been designed to work with the diesel engine in the Volkswagen Transporter T5. The automatic design ensures comfortable driving in city traffic, on the highway, and under typical operating loads characteristic of commercial and passenger-commercial vehicles.

The transmission is configured for a diesel drivetrain, meaning the gear-shifting characteristics are matched to higher torque and a lower operating RPM range. Such tuning promotes calm, predictable drivetrain operation, reduces jerking, and improves driving refinement across the full load range.

Benefits of using an automatic transmission in the Transporter T5

Using this transmission in a Volkswagen Transporter T5 with a diesel engine provides a number of practical benefits in daily operation:

• increased driving comfort in city traffic thanks to automatic gear shifting,
• better traction control when starting with a load or trailer,
• consistent cooperation with the diesel unit, optimized for torque,
• reduced driver fatigue during long trips and intensive vehicle use.

For fleets and professional users, the ability to maintain a uniform drivetrain configuration across multiple vehicles is also significant, which facilitates maintenance and operational planning.

Condition, verification, and OEM selection

The offered transmission is a used component, which allows for a significant reduction in repair costs compared to purchasing a brand-new unit. At the same time, the original manufacturer's specification is preserved, including the OEM part number and related interchangeable numbers, which allow for precise identification and selection for a specific vehicle configuration.

Before purchasing, it is worth verifying the compatibility of the transmission with your vehicle based on the OEM number, reference numbers, and vehicle data (model, year of manufacture, engine type). This approach minimizes the risk of incompatibility and speeds up the installation process in the workshop.

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Volkswagen and need other components from the same group, such as a torque converter, control elements, or additional transmission sub-assemblies, check out the available parts in the Volkswagen automatic gearboxes category.

Operation, installation, and service recommendations

Professional installation of this transmission in a Volkswagen Transporter T5 requires standard service procedures: checking mounts, proper alignment, bleeding the system, and using the appropriate transmission fluid in accordance with the manufacturer's recommendations. Correct installation is crucial for the durability and stable operation of the automatic unit.

To extend the life of the transmission, it is worth performing regular inspections, periodic oil and filter changes, and monitoring for any signs of improper operation, such as delayed gear engagement or excessive vibrations. Proper maintenance allows you to fully utilize the potential of this design in the demanding operating conditions of a commercial vehicle.

Why consider a used automatic transmission

Choosing a used automatic transmission for a Volkswagen Transporter T5 is a reasonable compromise between repair costs and maintaining factory specifications. The original design, matched to the diesel engine, ensures predictable vehicle behavior and facilitates work for mechanics thanks to compliance with manufacturer documentation.

If you want to better understand how to safely and consciously choose used drivetrain components, including automatic transmissions, check out our guide Why it is worth buying used gearboxes and engines – facts instead of myths, which discusses, among other things, selection by VIN and OEM, common myths, and real cost savings.