CURT MANUFACTURING, LLC. part description

Stress is the last thing you should feel when towing a trailer -- whether you're hauling your RV to that favorite camping destination, your ATVs up to the hunting grounds or your fishing boat to the new hidden hotspot. At CURT, we think your towing equipment should add to the enjoyment of your experience, not detract from it. CURT custom wiring connectors are the easiest way to outfit your vehicle with a CURT trailer wiring connection. They are built with some of the most advanced technology in the industry, and each one is custom-fitted to work with a specific make and model. Some automotive manufacturers install a special socket on the vehicle to be used for vehicle-to-trailer wiring. Though this special socket is not equipped on every vehicle, a CURT custom wiring connector (also called a T-connector) utilizes the socket for simple, stress-free installation. Rather than requiring you to cut, splice and solder into your vehicle's wiring system, the custom wiring connector uses a single OEM-compatible plug and instantly provides a standard vehicle-to-trailer wiring connection, typically in the form a 4-way flat. All CURT custom wiring connectors are made vehicle-specific for the easiest possible installation and the best fit. This particular connector provides a 4-way flat socket and is designed to be a custom wiring option for certain years of the Mazda CX-9 (to verify your vehicle compatibility, see the CURT application guide at curtmfg.com). It comes with all necessary hardware to establish a solid connection, including a powered 3-wire-to-2-wire converter. It also comes with a dust cover to keep the connector socket clean when not in use and a one-year limited warranty. To ensure long-lasting reliability, the majority of CURT custom wiring connectors are made in the USA, and all are thoroughly tested for optimal functionality.


  • Plugs into vehicle tail light assembly to provide a 4-way flat socket
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • 4-way flat output connects tail lights, brake lights and turn signals
  • Equipped with a powered 3-wire to 2-wire tail light converter
  • Constructed with SMT circuitry for better performance and durability
  • Dust cover included to keep connector clean when not in use
  • Backed by a limited one-year warranty
  • Made in USA

CUSTOM VEHICLE TO TRAILER WIRING

Product Description

Custom 4-Flat, Select Mazda CX-9, OEM Tow Package Required

Application Summary

CURT 56338 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Mazda CX-9

Simple plug-and-play design eliminates the need for cutting or splicing

t 4pin t-harness extension extensions rv four draw harnes traler rugged auto 4way tite receiver adapter kits parts wires t-one ridge part 4wire 4flat replacement gauge utility 2016 2017 2018 2019

Product Attributes

Battery-powered Yes
Box Height In Inches - Xa 0
Box Length In Inches - Xa 0
Box Width In Inches - Xa 0
Class Id 11
Color Black
Converter Type Circuit Protected and Powered
Electrical System Type 3W
Finish - Xa N/A
Item Class - Xa CME
Item Height - Xa 0.000
Item Length - Xa 0.000
Item Width - Xa 0.000
Output Type 4-Way Flat
Parcel Allowed - Xa Yes
Product Weight - Xa 0.000
Rate Class - Xa 70.0
Retail Height - Xa 3.000
Retail Length - Xa 9.000
Retail Width - Xa 4.000
Shipping Weight - Xa 0.875
T-connector Location S4
Tail Light Circuits 6.0 Amps
Tariff 301 - Xa No
Turn And Brake Circuits 3.0 Amps
Warranty One-Year Limited Warranty

Additional Information

Country of Origin (Primary) MX
Harmonized Tariff Code (Schedule B) 8537109170
Harmonized Tariff Code (HTS) 8537109170
NAFTA Preference Criterion Code B
Refurbished Part N
Remanufactured Part N
Warranty Special One-Year Limited Warranty
Warranty Special UOM TX
UPC 00612314563388

Curt®, a Lippert brand, is a leading manufacturer and supplier of a full line of towing products, including heavy-duty equipment. It also offers fifth wheel, gooseneck, weight distribution hitches, ball mounts, trailer balls, electrical components, bike racks, cargo carriers, and other towing accessories. Headquartered in Eau Claire, Wisconsin, Curt Manufacturing, LLC. has come a long way since it was founded as a trailer ball distribution business in 1993. Two years after its founding, it began manufacturing its own first custom-fit receiver hitch, which was soon followed by countless more. Today, Curt remains the FIRST Name in Towing Products® with over a thousand trailer hitch designs for everything, from vans and passenger cars to SUVs and full-size pickups.

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