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Pollak 7WB-178PFV 7-Blade to Dual 5-Way & 4-Way Flat Trailer Adapter

Manufacturer

Pollak

<h3>Pollak: Over a Century of Electro-Mechanical Engineering Excellence</h3><p><strong>Pollak</strong> has one of the most storied origins in the American auto parts industry. Founded in 1909 by Joseph Pollak as a small tool and die shop in Boston, Massachusetts, the company has spent more than 115 years evolving alongside the transportation industry — from crafting precision tools during World War I to engineering the electrical switches found in military aircraft during World War II. That heritage of precision manufacturing is woven into every product the brand produces today.</p><p>Now a part of the Standard Motor Products (SMP) family, Pollak engineers, manufactures, and distributes a wide range of electro-mechanical components — including connectors, switches, sensors, and related items — serving the heavy truck, off-road, RV, marine, industrial, and towing industries. Its facilities operate under TS16949 and ISO14001 certifications, and the brand has earned Q1 preferred status at Ford, General Motors&apos; Mark of Excellence, and Chrysler&apos;s Gold Pentastar, reflecting a deep commitment to quality that resonates across OEM and aftermarket channels alike.</p><h3>A World Leader in Towing Connectivity</h3><p>Pollak is perhaps best recognized among truck and trailer owners for its dominance in towing electrical components. The brand is widely regarded as a world leader in original equipment trailer wiring connectors, adapters, and extensions, with aftermarket offerings built to the same exacting standards as its OEM parts. Whether you&apos;re replacing a worn factory socket on a half-ton pickup or outfitting a heavy-duty rig for long-haul towing, Pollak&apos;s lineup covers the full spectrum of connection types.</p><p>For anyone managing a towing setup, <a href="/2632-trailer-wiring-adapter-connector-pollak-7495">Pollak Trailer Wiring Adapter Connectors</a> are a go-to solution. Available in configurations from 4-way flat to 7-way blade, these connectors are precision-engineered for light-duty and medium-duty trucks and SUVs, and several models come recommended directly by major vehicle manufacturers. The brand&apos;s heavy-duty plugs and accessories are designed to meet and exceed SAE J560 standards, feature floating pins for ease of alignment, and accept a wide range of wire gauges for maximum versatility.</p><p>Complementing the connector lineup, <a href="/7495-pollak-socket-assembly-10144">Pollak Socket Assemblies</a> are purpose-built for vehicle-side towing applications. Designed to withstand the harsh environment of an exposed external mount under a truck&apos;s rear bumper, Pollak sockets incorporate features like stainless steel spring lid hinges, runner gaskets to prevent moisture intrusion, and drain slots for all-weather durability — the kind of thoughtful engineering detail that has kept Pollak at the forefront of the towing industry for generations.</p><h3>Why Choose Pollak?</h3><ul><li><strong>115+ years of manufacturing expertise</strong> dating back to 1909</li><li>OEM-grade quality trusted by Ford, GM, Chrysler, Freightliner, John Deere, and more</li><li>ISO and TS16949-certified manufacturing facilities</li><li>Products engineered for heavy truck, RV, marine, towing, and agricultural applications</li><li>Aftermarket parts built to the same standards as original equipment components</li></ul><p>From the farm field to the open highway, Pollak&apos;s reputation for innovative design and dependable manufacturing makes it a trusted name for anyone who demands reliable electrical connectivity from their towing and vehicle systems.</p>

Part Number

7WB-178PFV
06/01/2036 8:31 PM
Sale Price

$25.69

In Stock (8)

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Product Details

The Pollak 7WB-178PFV is a versatile trailer wiring adapter that converts a 7-blade vehicle end socket into dual flat connections, allowing you to connect trailers with either 5-way or 4-way flat plugs. This flexible adapter harness features a 3-1/4 inch length, providing convenient access for multiple trailer types without requiring separate adapters.

Key Features:

  • 7-blade vehicle end socket for connection to truck or SUV trailer plug
  • Dual output configuration with both 5-way and 4-way flat connectors
  • 3-1/4 inch flexible harness for easy routing and connection
  • Allows simultaneous connection of multiple trailers or accessories
  • Durable construction designed for automotive and light-duty trailer applications
  • Eliminates the need to swap adapters when switching between trailer types

This adapter is ideal for users who tow different trailers with varying electrical connector types, providing a convenient all-in-one solution that stays connected to your vehicle's 7-blade socket. Perfect for utility trailers, boat trailers, and recreational trailers that use flat pin connectors.

The free shipping sold me on this sale. Very happy

Arrived quickly.

Fast process found the parts I needed

The online site is fairly easy to use

Great prices, and had exactly what I needed.

Love product

Fast shipping

Super easy to navigate site and delivery of item was very fast as well.

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