C-Tzu Trailer Wiring Adapter 7-Blade + 4-Pin with Bracket — Ford 2009–2023 OEM-Style, ABS Housing & Brass Contacts

The C-Tzu rear bumper trailer wiring connector replaces Ford part 9U5Z-14489-MAA and provides both a 7-blade RV and 4-pin flat plug for reliable trailer light and brake signal connections.

This OEM-style adapter is engineered to restore or upgrade the factory towing electrical interface on many Ford models from 2009–2023. Built with ABS housing and brass contacts, the assembly combines mechanical durability with dependable electrical performance so you can tow with consistent lighting, turn signals, and brake output. It comes with a mounting bracket and the correct connector configuration to match vehicles that shipped with round 7-pin and flat 4-wire receptacles.

Which Ford vehicles will this C-Tzu connector fit?

The adapter is designed to match the original equipment footprint and pin layout of part 9U5Z-14489-MAA, covering a wide range of Ford trucks, vans, and SUVs across model years. Confirm fit by comparing connector shape and mounting points to your existing bumper plug assembly.

• 2009–2019 E-Series: E-150, E-250, E-350, E-450
• 2009–2019 F-150 and 2009–2016 Super Duty F-250 to F-550
• 2015–2023 Transit cargo and passenger vans
• 2018–2019 Expedition, 2018–2019 Navigator, 2010–2014 Mark LT

How does the dual 7-pin and 4-pin design help when towing?

Having both connector types on one assembly gives you flexibility to tow trailers with different wiring standards without carrying separate adapters. The 7-blade supports RV-style functions while the 4-flat handles basic lighting circuits, so you can connect trailers, utility beds, or small campers quickly and cleanly.

• 7-blade RV contacts for brake controller and auxiliary circuits
• 4-pin flat for standard running, turn, and stop lights
• Easy switch between connectors depending on trailer plug type
• Mounting bracket keeps connectors secured to bumper or hitch area

What materials and durability features does this replacement use?

The housing uses impact-resistant ABS plastic to resist road debris and chemicals, while precision-machined brass contacts deliver low-resistance connections and corrosion resistance. This combination extends service life in wet or salty environments and supports steady electrical flow under towing load.

• ABS plastic shell for impact and chemical resistance
• Brass pins for conductivity and corrosion protection
• Factory-style fit for secure mounting and sealed contact alignment
• Complete kit includes mounting hardware and harness interface

How easy is installation and what should I check before replacing?

Installation is straightforward for anyone comfortable with basic hand tools and vehicle electrical connectors. Match the mounting holes and connector orientation to your bumper assembly, secure the bracket, and test each circuit before towing to ensure correct lighting and brake signals.

• Compare connector shape to OEM plug before installation
• Use included bracket and hardware for a snug fit
• Test turn signals, brake lights, and reverse/aux circuits after fitting
• Inspect vehicle harness for corrosion or damaged wires before mating

Who is this for? If you own a compatible Ford truck, van, or SUV from 2009 through 2023 and need a reliable replacement for a damaged or missing trailer wiring connector, this C-Tzu assembly restores factory-style towing connections. It’s aimed at owners who want a durable, OEM-fit plug with both 7-pin RV and 4-pin flat options for flexible towing across trailers, campers, and utility loads.