Sylvania 552 Heavy‑Duty 12V Flasher (NOS, Boxed)
Description:
The flasher is stamped:
SYLVANIA — 552 — 12 VOLT FLASHERFeatures: • Genuine Sylvania heavy‑duty flasher • Model 552 — 12V, 2‑terminal • Works with 1–6 lamp circuits • Ideal for GM, Ford, Chrysler, trucks, and trailers • NOS condition — original vintage packaging
Key Specs
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Brand: Sylvania
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Model: 552
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Voltage: 12V
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Type: Heavy‑Duty thermal flasher
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Terminals: 2‑prong (L & P)
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Load Rating: Typically 1–6 lamps
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Era: 1960s–1990s aftermarket
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Packaging: Vintage red/blue/white Sylvania box
Sylvania produced some of the most reliable electrical components of the era, and their flashers were widely sold in auto parts stores nationwide.
🚗 Correct Applications
The Sylvania 552 fits any 12‑volt, 2‑terminal flasher socket, including:
Passenger Cars
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GM: Camaro, Chevelle, Nova, Impala, Caprice
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Ford: Mustang, Fairlane, LTD
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Chrysler: Dart, Valiant, Fury
Trucks & SUVs
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Chevy 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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Trailers (utility, RV, commercial)
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Farm tractors
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Construction equipment
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Aftermarket wiring harnesses
This flasher is extremely common in turn‑signal and hazard circuits.