Towing Equipment› Trailer Wiring and Electronics

Pollak Engineered

FLEXIBLE 7 WAY BLADE TO 5-WAY & 4-W

$42.25

SKU: P01M 7WB-178PFV

In Stock
In Stock
Ships by Jun 14
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Pollak Engineered 7WB-178PFV is a trailer wiring adapter designed to connect a 7-way blade vehicle end socket to dual 5-way and 4-way flat trailer connectors. This adapter allows you to tow trailers equipped with either 5 flat or 4 flat connectors without needing to rewire your vehicle's existing harness.

It features a 3 1/4-inch harness length and includes both female and male connectors, with 7 terminals on the vehicle side and 5 and 4 terminals on the trailer side. The adapter is constructed with both round and rectangle connector shapes.

Fitment

Fitment Guaranteed

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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

BrandPollak Engineered
Part NumberP01M 7WB-178PFV

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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