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Truck-Lite · Hardware & Fasteners
50840
In stock · ships from Knoxville
This is a compression fitting used to seal and secure a 2-conductor electrical cable where it enters a junction box on a heavy-duty truck or trailer.
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Verified fitment for 7 applications
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Designed for a single 2-conductor cable with roughly 0.375 inch outer jacket diameter. Fits only the listed Truck-Lite junction boxes; may not be compatible with other brands.
Part data verified against 5 catalog sources
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It consists of a threaded base, a gray PVC body, and a black rubber grommet with a 3/8-inch inner diameter that tightly grips the cable. You would replace this fitting if the original is cracked, leaking, or no longer keeping moisture and road grime out of the junction box, as water intrusion often leads to corroded terminals and lighting failures.
Part Number: 50840
3/8 COMPRESSION FITTING, JUNCTION BOX
Unit: ea
Dealer: Post Onsite
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