BILITOOLS Transmission Fill Tool Kit for Mercedes 9G‑Tronic (4PC) — Aluminum & Zinc Alloy, M12 Fill Adapter

This compact kit brings together four purpose‑built tools so you can perform a transmission fluid change on Mercedes‑Benz models fitted with the 9‑speed 9G‑Tronic gearbox (type 725.0xx) without searching for individual adapters. The set pairs corrosion‑resistant zinc alloy and softer aluminum parts to reduce thread wear while standing up to garage use. A molded carry case keeps the components organized, and key adapters match OEM dimensions for a secure, leak‑free connection.

Which vehicles and transmissions will this kit work with?

The kit is engineered primarily for Mercedes‑Benz models that use the 9G‑Tronic (722.9 / type 725.0xx) transmission, including many newer C‑Class, E‑Class, S‑Class, GLC, GLE and GLS variants. It also fits some Nissan and Infiniti models that share the longitudinal 9G‑Tronic configuration.

• Compatible Mercedes OEM equivalents listed for direct fit.
• Works with Nissan Z (RZ34), Frontier (D41), Titan, Infiniti QX80 where applicable.
• M12 x 1.5 ATF fill adapter included for 722.9 fill ports.

How do the materials and construction protect my transmission?

Critical adapters are zinc alloy for strength and wear resistance, while aluminum pieces reduce the chance of galling or thread damage to delicate housings. All components are corrosion‑resistant and sized to tolerate workshop torque and repeated use.

• Zinc alloy adapters for durable, repeatable thread engagement.
• Aluminum components to minimize damage to transmission ports.
• Corrosion‑resistant finish for longer service life.

What tools are included and what do they do?

The four‑piece set supplies the essentials for a standard drain and refill service: a spanner for oil pan removal, a drain tool to extract old fluid, and two fill adapters to route new ATF into the transmission safely and cleanly.

• 8mm oil pan spanner — removes the pan or access fasteners.
• Fluid drain tool — enables controlled fluid extraction without spills.
• M12 x 1.5 ATF fill adapter — fits standard Mercedes fill ports.
• Special 9G‑Tronic ATF fill adapter — tailored to 9‑speed transmission geometry.

How easy is it to use this kit in a home garage or professional shop?

The kit is designed for straightforward use with common workshop equipment: a lift or safe jack stands, a fluid pump or hand‑pump for filling, and basic hand tools. The adapters slide into OEM ports and accept standard filling hoses or fittings, reducing the need for improvised connectors.

• Fits standard filling hoses and pump fittings for clean operation.
• Molded case keeps parts organized and portable between jobs.
• Great for single‑vehicle maintenance or light shop throughput.

Who is this for: This BILITOOLS 4PCS Transmission Fill Tool kit is aimed at DIYers who maintain their own Mercedes 9G‑Tronic vehicles, independent mechanics who service multiple makes, and small shops that want a compact, reliable set of OEM‑equivalent adapters. It suits anyone who needs accurate transmission fluid handling without risking thread damage or repeated improvisation. Note: always follow manufacturer service procedures and fluid specifications when performing transmission work.