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2-Pack MR538851 Relay - 12VDC 20A 4-Pin SPST Automotive Relay - Compatible with Fuel Pump & Lighting Systems (Replaces 13848981, D1777C, 13502753) - Fixes Electrical Failures

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$15.99

$ 6 .99 $6.99

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About this item

  • High Current SPST Design – 20A 12VDC 4-pin relay ensures stable control of fuel pump, headlights and auxiliary circuits
  • Direct Replacement for Multiple OEM Relays – Compatible with Ford, GM and Dodge vehicles (validate year/model); Replaces 13848981, D1777C, 13502753, 19116962, 3600330C1 and 303-1AH-C-R1 U01
  • Solve Critical Electrical Problems – Solve fuel pump failures, flickering lights and relay overheating
  • Cross Reference Compatibility – Compatible with Bosch 0332019150 and Delphi D1777C for seamless integration
  • 2-Pack Value Backup – Dual relays ensure redundancy for critical systems like fuel delivery and lighting


Reliable Power Control for Automotive Systems

The MR538851 SPST Relay is designed to restore reliability in high-demand automotive circuits. As a direct OEM replacement, this 2-pack ensures uninterrupted performance for fuel pumps and lighting systems, leveraging a 4-pin SPST design to manage 20A loads safely.

Key Features:

20A 12VDC Capacity: Ideal for fuel pumps, headlights, and auxiliary circuits requiring stable high-current switching.

Multi-Model Compatibility: Replaces 13848981, D1777C, and 5+ other relays across Ford, GM, and Dodge vehicles (check specific applications).

Durable Construction: Copper alloy contacts resist arcing, with an operating range of -40°C to 85°C for harsh environments.

Plug-and-Play Installation: Matches factory 4-pin sockets (SPST layout) for 5-minute replacements.

Compatibility Note: Confirm fitment via VIN or repair manual.