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.
Great Dane · Electrical & Lighting
GRT01-4436-71
In stock · ships from Knoxville
This is an electronic timer switch designed to control interior dome lights on semi-trailers.
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
Primarily used in Great Dane dry vans, reefers, and other models. May fit other trailer brands with compatible dome light wiring and mounting; always verify connector type and dimensions before purchase.
Part data verified against 4 catalog sources
Numbers this part supersedes or interchanges with. Showing 1 of 1.
Different year, make, or config? Get a confirmation against your truck in under a minute.
It lets you program the lights to stay on for 20, 40, 60, or 80 minutes after being turned on, and includes a brake override that automatically activates the dome lights when the trailer brakes are applied. You'd replace this switch when the existing timer fails, or if you're upgrading to a unit with programmable timer and brake override functions.
Part Number: GRT01-4436-71
DOME LAMP SWITCH
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside electrical & lighting
