2-Pack 12177235 12V DC 20A SPST Flasher Relay – 4-Pin Design, Compatible with Buick Regal & Select GM Vehicles – Fixes Turn Signal (B2575) & Hazard Light Failures

Reliable Turn Signal Control for GM VehiclesThis 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 loadEnvironmental: IP67-sealed housing with flame-retardant casingPrimary 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.

• 20A SPST Turn Signal Control - 12VDC Single Pole Single Throw relay ensures stable operation for turn signals, hazard lights, and auxiliary LED circuits. Direct compatibility with OEM 12177235 specifications
• For Buick/Chevrolet Vehicles - Compatible with Buick Regal (2014–2022) turn signal modules and Chevrolet Malibu (2016–2021) hazard light systems
• Critical Error Code Resolution - Fixes B2575 (intermittent turn signal fault) and B2580 (hazard light circuit fault) caused by relay contact degradation
• Waterproof and shockproof - IP67-rated housing withstands road salt, moisture, and engine heat (-40°C to +85°C). Silver alloy contacts resist arcing in high-frequency switching
• Plug-and-play 4-pin SPST design - mates with factory socket (ISO 7588-1 compliant). Includes 2 relays for spare replacement or multi-circuit upgrades