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Post Onsite · Electrical & Lighting
550-3
In stock · ships from Knoxville
The 550-3 is a 3-prong thermal turn signal flasher relay for 12 V systems.
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Universal fit
Universal 12 V 3-prong flasher for vehicles with standard incandescent bulbs. Not LED compatible. Commonly found in older model cars and light trucks.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 9 of 9.
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It uses a bimetallic strip that heats and cools to open and close the circuit, creating the familiar blinking of turn signal lamps. Designed to handle 2 to 6 standard incandescent bulbs, it fits many older cars and light trucks with a standard 3-pin flasher socket. You replace it when turn signals blink erratically, stay on solid, or the audible click disappears.
Part Number: 550-3
3 PRONG FLASHER
Unit: ea
Dealer: Post Onsite
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