Tung‑Sol 550 Heavy‑Duty 12V Flasher (NOS, Boxed)

$24.99

type: Unknown Type
Vendor: CorvairFarmer

Description:

Tung‑Sol 550 Heavy‑Duty 12V Flasher (NOS, Boxed)

The canister is stamped:

TUNG‑SOL 550 — 12V — HEAVY DUTY FLASHER — PAT. NO. 3218415 — MADE IN U.S.A. — USE WITH 14A FUSE

Key Specs

  • Brand: Tung‑Sol

  • Model: 550

  • Voltage: 12V

  • Type: Heavy‑Duty thermal flasher

  • Terminals: 2‑prong

  • Fuse Requirement: 14‑amp inline fuse

  • Era: 1960s–1980s

  • Use Case: Multi‑lamp, towing, hazard circuits

The 550 was Tung‑Sol’s premium heavy‑load flasher — a step above the common 552 series.


🚗 Vehicle Compatibility

Because it’s a universal 2‑terminal 12V flasher, the 550 fits nearly all U.S. vehicles from the 1960s–1990s:

  • Chevrolet: Camaro, Chevelle, Nova, Impala

  • Ford: Mustang, Fairlane, LTD

  • Chrysler: Dart, Valiant, Fury

  • AMC: Hornet, Javelin, Gremlin

  • Trucks: Chevy C/K, Ford F‑Series, Dodge D‑Series

  • SUVs: Blazer, Bronco, Ramcharger

  • IH: Scout, pickups

  • Trailers, RVs, tractors, construction equipment

If it blinked a turn signal or hazard light in a 12‑volt system, the 550 fits.


🛠️ Why the 550 Matters

Compared to the 552:

  • Handles higher current loads

  • More stable blink rate under towing

  • Better heat tolerance

  • Preferred in fleet and commercial vehicles

  • More desirable to collectors due to Tung‑Sol branding

Your example is especially desirable because it has original Tung‑Sol packaging, not distributor packaging.

Vintage Tung‑Sol 550 heavy‑duty flasher, correct for all 12‑volt cars and trucks using 2‑terminal turn‑signal or hazard circuits. Rated for multi‑lamp loads and towing setups.

Features: • Genuine Tung‑Sol heavy‑duty flasher • Model 550 — 12V • 2‑terminal design • Requires 14‑amp inline fuse • Fits all 12V cars, trucks, trailers, and equipment • NOS condition with original Tung‑Sol packaging

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