kweiny Transmission Fluid ATF Filler Adapter for Nissan CVT M12x1.25 — Anodized Aluminum, Silica-Gel Seal

kweiny Transmission Fluid ATF Filler Adapter for Nissan CVT Trans M12x1.25 is an OEM-equivalent threaded connector that lets you attach an ATF filling hose to Nissan CVT transmission pans quickly and securely.

This compact aluminium adapter reproduces the factory tool thread and fit to streamline CVT fluid service on many Nissan models. Designed to match Nissan Factory Tool #KV311039S0, the adapter provides a leak-resistant connection between an ATF transfer hose and the vehicle's fill port. It combines anodized aluminium construction with a silica-gel sealing element for repeated use under workshop conditions.

How does this adapter fit Nissan CVT transmission pans?

The adapter uses a 12 x 1.25 threaded interface—the same specification found on numerous Nissan CVT drain and fill ports since 2014. It screws directly into the factory fill thread and accepts standard ATF hoses for top-up or full fluid exchange. Installation is straightforward with hand start and final snugging; no cutting or permanent modification is necessary.

• Thread size: M12 x 1.25 to match OEM ports
• Fits factory-style fill holes without adapters or extenders
• Silica-gel seal reduces seepage during filling
• No vehicle modifications required for installation

What materials and build quality should I expect?

The adapter is machined from lightweight aluminium alloy and finished with anodizing to resist corrosion and surface wear. A molded silica-gel sealing washer ensures a tight mating surface against the transmission housing, while the metal body withstands repeated mechanical connection cycles. The combination of materials balances durability with ease of use in shop environments.

• Anodized aluminium body for corrosion resistance
• Silica-gel sealing element for reliable leak control
• Precision-cut threads for accurate fit and alignment
• Designed for repeated use in maintenance settings

Which Nissan models are compatible with this adapter?

Compatibility covers a range of Nissan vehicles fitted with CVT systems and M12 x 1.25 fill threads beginning around the 2014 model year. Common examples include sedans, crossovers and electric models that share the CVT architecture and factory fill port dimensions. Always confirm the thread size on your vehicle’s fill port before ordering.

• Altima (2014 and newer)
• Versa (2014 and newer)
• Leaf (2014 and newer)
• Pathfinder, Rogue, Sentra, Juke (2014 and newer)

How does using this adapter improve CVT fluid changes?

By providing a secure, OEM-matching connection, the adapter reduces the chance of spills, speeds up hose attachment, and helps maintain a clean work area during fluid exchange. It also enables the use of standard ATF pump hoses and vacuum tools without improvised fittings. The net result is safer, faster fluid servicing with repeatable results.

• Minimizes fluid leakage during fill procedures
• Speeds hose hookup and removal compared with improvised fittings
• Supports use of professional ATF transfer equipment
• Helps maintain correct service posture and cleanup

Who is this for? This kweiny ATF Filler Adapter is intended for professional technicians, independent mechanics, and experienced DIYers who perform transmission fluid service on Nissan CVT-equipped vehicles. If you regularly change or top up CVT fluid, work on multiple Nissan models, or prefer OEM-equivalent tools for cleaner, faster service, this adapter offers a durable, low-cost solution that matches factory thread specifications.