Cautyfky Trailer Connector 7-Pin Round & 4-Pin Flat for Ford F150–F350 — Brass Contacts, Impact-Resistant Housing

Cautyfky's 9U5Z-14489-MAA trailer connector replaces worn or corroded Ford 4-/7-pin tow plugs to restore trailer lighting and brake signal reliability.

If your Ford's trailer wiring is causing dash warnings, intermittent lights, or a non-functioning brake circuit, a damaged connector is often the culprit. This replacement connector is engineered to match common Ford part numbers and fit a wide range of F-series, Super Duty, Transit, Expedition, Navigator and other models equipped from the factory with towing packages. It pairs durable plastic housing with brass terminals to resist corrosion and provide a long-lasting electrical connection between truck and trailer.

How does this connector match my Ford's original wiring?

The Cautyfky 9U5Z-14489-MAA is built to be compatible with multiple Ford OEM reference numbers and original tow-harness layouts. It follows the same pin arrangements as factory connectors so wiring and signals line up without modification.

• Cross-references popular Ford part numbers including 68014986AB and FU5Z-14489-A.
• Available in the two most common tow plug formats: 7-pin round (RV blade) and 4-pin flat.
• Designed for rear-vehicle placement and direct connection to the existing harness bracket.

What materials and build features improve longevity?

This replacement connector uses durable polymer housing and brass contacts to reduce the risk of rust, bent terminals or poor conductivity. That combination helps keep trailer lighting and brake circuits working through wet and salty conditions.

• Corrosion-resistant brass contacts for steady signal transfer.
• Impact-resistant plastic housing to protect pins and wiring from road debris.
• Secure mounting design to minimize vibration and connector movement over time.

Will installation require splicing or special tools?

Most installs are plug-and-play when replacing the factory connector mounted at the truck’s rear bracket. Basic hand tools are typically enough; complex wiring or custom trailer setups may need additional steps.

• Fits standard factory tow-harness locations—rear bracket placement on compatible models.
• No specialized diagnostic tools required for straightforward replacement.
• Minor wiring or bracket adjustments possible on older or modified trucks.

Which Ford years and models are supported by this part?

The connector covers a broad list of Ford vehicles factory-equipped with towing packages across model years, including many F-150, F-250, F-350 and Super Duty variants, plus selected Transit, Expedition, Navigator and Lincoln Mark LT trucks.

• Common compatibility: 2009–2019 F-150, F-250, F-350 with factory towing.
• Also fits Super Duty 2010–2016 and select Transit, Expedition, Navigator, and Mark LT models.
• Check your truck’s harness and part number list for exact match before purchasing.

Who is this for: Drivers and fleet owners who tow trailers, ATVs, boats, or horse trailers and need a reliable, OEM-style replacement connector to clear trailer wiring warnings and restore dependable lighting and brake signal function. It’s ideal for DIY mechanics who want a direct-fit part that mirrors Ford reference numbers, and for service shops that require a corrosion-resistant, long-lasting connector to maintain safe towing operations.