HEAVY DUTY FLASHER 180/550 – 12 VOLT – USE 14 AMP FUSE IN INPUT LEAD
Description:
Key Specs
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Brand: Signal‑Stat (Truck‑Lite division)
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Model: 180/550
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Voltage: 12V
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Fuse Requirement: 14‑amp inline fuse
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Terminals: 3‑prong (X = power, L = load, P = pilot)
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Type: Heavy‑Duty thermal flasher
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Load Capacity: Multi‑lamp circuits (truck & trailer grade)
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Era: 1960s–1990s commercial aftermarket
Signal‑Stat was one of the most trusted brands in the trucking industry — their flashers were known for durability and consistent blink rate under heavy electrical load.
🚚 Correct Applications
The 180/550 fits any 12‑volt, 3‑terminal flasher socket, including:
Commercial & Fleet Vehicles
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Medium‑duty trucks
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Delivery vans
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Tow trucks
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Municipal vehicles
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Utility fleet trucks
Consumer Trucks & SUVs
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GM C/K series, Suburban, Blazer
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Ford F‑Series, Bronco
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Dodge D‑Series, Ramcharger
Specialty & Equipment
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Farm tractors
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Construction equipment
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Trailers (LTL, commercial, RV)
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Aftermarket wiring harnesses
This model is especially common in towing setups and multi‑lamp hazard circuits.