Reliable Turn Signal Control for GM Vehicles
This 2-pack of SPST flasher relays restores consistent operation to turn signals and hazard lights in compatible Buick, Chevrolet, and GMC models. Designed to replace worn or corroded relays, it combines industrial durability with precise electrical performance.

Technical Specifications:

Contact Type: SPST (Single Pole Single Throw)

Terminal Layout: 4-pin (ISO 7588-1 compliant: pins 30-85-86-87)

Electrical Rating: 20A @ 12VDC resistive load

Environmental: IP67-sealed housing with flame-retardant casing

Primary Applications:

Turn Signal Systems: Resolves hyper-flashing, delayed blinking, or complete signal failure.

Hazard Light Circuits: Fixes unresponsive or erratic hazard light activation.

Auxiliary Lighting: Supports LED light bars or trailer light controls without voltage drop.

Cross-Reference Compatibility:

Direct swap for EP27, CF13, and equivalent Bosch/Tyco relays.

Installation Tips:

Verify original relay part number and terminal alignment.

Clean socket contacts if oxidized using electrical contact cleaner.