OER 1938-56 GM Horn Relay Service Replacement 6 Volt

Part Number: HR603-OER

OER 1938-56 GM Horn Relay Service Replacement 6 Volt

Part Number: HR603-OER

Original price was: $42.49.Current price is: $36.95.

In Stock

( Inventory updated: 06/06/2026 )

Estimated ship date: 2-3 business days

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1938-56 GM Horn Relay Service Replacement 6 Volt

Enhance the functionality of your classic GM vehicle with the 1938-56 GM Horn Relay Service Replacement. Designed specifically for various 1938-55 GM models, this 6-volt horn relay is an essential component to ensure your horn performs reliably and efficiently, making it ideal for restoration or replacement in classic automobiles. Whether you’re restoring a beauty or fixing up a beloved daily driver, this durable part gets the job done.

Key Features and Benefits

  • Replacement 6-volt horn relay compatible with a wide range of GM vehicles from 1938-55.
  • Features 3 connectors and a slotted bracket for easy installation.
  • Reliable performance as it replaces several OE and aftermarket part numbers, including FAA-13853-A and HR114.
  • Not just limited to GM brands; offers versatility for various other makes and models, ensuring broad applicability.
  • Constructed with durability in mind, delivering long-lasting performance.

Technical Specifications

  • Part Number: HR603
  • Brand: OER

Fitment Information

This horn relay is compatible with numerous models across popular automotive brands, making it an excellent choice for your vehicle:

    Chevrolet/GMC Truck:

  • 1938-55 6 volt Truck
  • Buick:

  • 1946-49 Special Series 40
  • 1946-49 Super Series 50
  • 1946-49 Roadmaster Series 70
  • 1950-53 Special
  • 1950-53 Super
  • 1950-53 Roadmaster
  • Cadillac:

  • 1950-52 Series 60 Fleetwood
  • 1950-51 Series 61
  • 1950-52 Series 62
  • 1950-52 Series 75 Fleetwood
  • Ford:

  • 1953 Club
  • 1952-54 Country Sedan
  • 1950-55 Country Squire
  • 1952-55 Courier Sedan Delivery
  • Lincoln:

  • 1952-55 Capri
  • 1952-54 Cosmopolitan
  • Mercury:

  • 1949-51 Mercury
  • 1951-55 Monterey
  • Other Applications:

  • 1950-55 Fargo – Various Models
  • 1946-55 Jeep – Various Models
  • 1962-65 Volkswagen – Karmann Ghia

Note: This is a replacement part, which may differ cosmetically from the original but will fit and function like the original.

Revitalize your vintage vehicle today with the high-quality 1938-56 GM Horn Relay Service Replacement. Don’t compromise on performance; choose a relay designed for compatibility and durability. Order now and keep the classic sound of your horn alive!

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OER

Original Equipment Reproduction - OER - is the leading manufacturer and distributor of quality classic automotive restoration parts and accessories. OER products are meticulously manufactured to replicate the OEM appearance, quality and fit that meets or exceeds the original factory specifications.

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