Exterior Components› Body Panels and Components

Curt

CUSTOM WIRING HARNESS, 4-WAY FLAT O

$132.46

SKU: C00D 56557

In Stock
In Stock
Ships by Jun 15
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The CURT 56557 is a custom 4-pin trailer wiring harness designed for select BMW X4 models. This vehicle-specific wiring solution plugs directly into your vehicle's existing factory wiring, eliminating the need for cutting or splicing. It provides a standard 4-way flat connector for trailer lights, brake signals, and turn signals.

Constructed with surface mount technology for reliable power and durable performance, this harness includes a rubber dust cover to protect the 4-pin connector when not in use, ensuring long-lasting weather resistance.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandCurt
Part NumberC00D 56557

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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