Towing Equipment› Trailer Wiring and Electronics

Custer Products Inc

7 WAY PIN TO 4 FLAT ADAPTER ABS

$30.68

SKU: C022 ADP7P-4F

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Custer Products Inc ADP7P-4F is a trailer connector adapter designed to convert a 4-pin flat car connector to a 7-pin heavy-duty socket. It features wires for ground, tail lights, left turn/brake, and right turn/brake.

Constructed from ABS material, this adapter provides a reliable connection between your vehicle and trailer. The specific wire functions are: white for ground, brown for tail lights, yellow for left turn/brake, and green for right turn/brake.

Fitment

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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

BrandCuster Products Inc
Part NumberC022 ADP7P-4F

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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