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Betts · Electrical & Lighting
51-122.
In stock · ships from Knoxville
This Betts LED lens insert is a dual-function clearance/marker and auxiliary lamp for heavy-duty trucks and trailers.
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Verified fitment for 4 applications
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Specifically fits shallow-depth Betts plastic body lamps; replaces Betts part number 510022.
Part data verified against 2 catalog sources
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It snaps into Betts 50, 56, 57, or 60 series plastic body recessed or surface mount lamp housings. The amber lens uses a single-diode LED design, delivering low power consumption with bright output for both constant marker lighting and high-intensity auxiliary functions like turn signals. It operates on 12V or 24V DC systems and connects via three eyelet wires.
Part Number: 51-122.
BETTS LIGHT LENS
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside electrical & lighting