4 & 7 Pin Trailer Tow Wiring Harness Plug Compatible with 1999-2001

In this review the 4 & 7 Pin Trailer Tow Wiring Harness Plug is assessed for Ford owners who need a straightforward replacement harness for 1999-2001 F250 and F350 Super Duty trucks. The bottom line: this harness is a practical, plug-and-play swap that restores full trailer wiring functions without vehicle modification, making it best for DIY owners and technicians who want an OEM-style replacement that supports tail lights, brake lights, turn signals, backup lights and electric brakes.

Key Features

• Compatibility: Designed specifically for 1999-2001 Ford F250 and F350 Super Duty trucks so buyers can expect a correct fit if their vehicle matches those model years.
• Direct replacement: The harness is a plug-and-play substitute for part number YC3Z-13A576-CA, which removes the need for splicing or extra wiring work.
• Durable mounting tech: Surface mount construction helps the connector resist vibration and shaking common during towing, improving long-term reliability.
• Complete trailer functions: Provides connections for tail lights, brake lights, backup lights, turn signals, electric trailer brakes and auxiliary power so trailers remain fully functional.
• Protection features: Includes a multi-tow connector with bracket and a spring-loaded dust cover for the 7-way blade plus sealed black tubing to keep wires contained and protected.

Who It's For

This harness is aimed at Ford F250 and F350 owners from model years 1999 to 2001 who need a like-for-like replacement for a worn or damaged tow connector. It is especially useful for DIY installers and shop technicians who prefer a plug-and-play part that matches OEM routing and function without modifying factory wiring.

It is not the best choice for owners of other Ford model years or trucks with heavily customized wiring harnesses; anyone with a nonstandard trailer wiring setup or unique aftermarket systems should verify fit and pin locations before purchase.

Pros & Cons

Pros

• Easy plug-and-play installation restores trailer functions quickly without cutting or splicing.
• Mimics OEM part number YC3Z-13A576-CA for a predictable fit in compatible trucks.
• Surface mount connector and sealed tubing improve durability against vibration and exposure.
• Includes a spring-loaded dust cover to help keep the 7-way socket clean when not in use.

Cons

• Some buyers report mixed build quality for the mounting bracket, so expect varying sturdiness compared with OEM brackets.
• Pin location and sizing have received mixed feedback, so double-check alignment during installation.

Specifications

Compatible vehicles	1999-2001 Ford F250, F350 Super Duty
Replace part number	YC3Z-13A576-CA
Connector types	4-pin and 7-way blade multi-tow connector
Installation	Direct replacement, plug and play
Protection	Spring-loaded dust cover and black sealed tubing
Mounting technology	Surface mount to resist vibration

Our Verdict

The 4 & 7 Pin Trailer Tow Wiring Harness Plug is a sensible, cost-effective replacement for 1999-2001 Ford Super Duty owners who need full trailer wiring restored quickly. It matches the OEM part number, offers plug-and-play installation and protective features that make it good value for routine towing needs; buyers should inspect bracket sturdiness and pin alignment during fitment.

Frequently Asked Questions

Will this fit my F350 from 2000?
Yes, it is listed as compatible with 1999-2001 Ford F250 and F350 Super Duty trucks.

Does installation require wire splicing?
No, the harness is a direct replacement and installs as a plug-and-play unit without modification.

Is the 7-way connector protected when not in use?
Yes, the multi tow connector includes a spring-loaded dust cover to help keep the 7-way blade clean.