Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.

Phillips Industries · Electrical & Lighting
15-770
In stock · ships from Knoxville
This is a Phillips Industries adapter plate that lets you mount a standard 7-way trailer plug onto a nosebox (the electrical socket housing on the front of a semi-trailer).
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 1 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Other applications
Other applications
Fits standard Phillips noseboxes and allows a standard 7-way socket to mate.
Part data verified against 4 catalog sources
Different year, make, or config? Get a confirmation against your truck in under a minute.
It's made from powder-coated 10-gauge steel for corrosion resistance. The plate aligns the plug with the nosebox opening, so you can use a regular socket instead of a special nosebox-only plug. It's typically replaced when the original plate is bent, rusted through, or missing.
Part Number: 15-770
ADAPTOR PLATE
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside electrical & lighting