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.

Eaton Fuller · Electrical & Lighting
4302748
In stock · ships from Knoxville
This is a transmission reverse light switch. It screws into the transmission case and activates your truck’s backup lights when you shift into reverse, helping other drivers see you while backing up.
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.
Universal fit
Verified for multiple Eaton Fuller transmission models accepting a 14mm reverse switch. Also listed as a replacement for Mack part # 1MR2298 / 25065761 and Volvo # 3970480, but exact truck models and year ranges are not confirmed from the available sources.
Part data verified against 3 catalog sources
Numbers this part supersedes or interchanges with. Showing 9 of 9.
Different year, make, or config? Get a confirmation against your truck in under a minute.
Over time the internal contacts can wear out or the switch can leak, causing your reverse lights to stop working, which is when you’d replace it. It is a simple normally-open precision ball switch that threads into an M14 x 2 port using a 22 mm wrench.
Part Number: 4302748
REVERSE SWITCH
Vendor: Weller Truck Parts
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside electrical & lighting