645 Relay 4H0951253A V23136-B0006-X080 (2-Pack) 12V 40A 4-Pin SPST Automotive Power Relay Compatible with Volkswagen Jetta Tiguan Audi A4 Q5 Fixes Fuel Pump and Cooling Fan Issues

Is your engine stalling intermittently or is the cooling fan failing to engage?The 645 Power Relay (4H0951253A) is a critical link in your vehicle's electrical chain, managing power to the fuel pump, ignition system, and cooling fans. When internal contacts wear out, they cause erratic drivability issues and dashboard warning lights. Our professional-grade 40-Amp relays provide the precision switching required to restore your vehicle’s factory electrical performance.Engineered for Professional DIY RepairDesigned to handle the intense thermal environment of modern E-Boxes, these relays feature silver-alloy contacts that resist internal "welding" and carbon buildup. This makes them a reliable replacement for original relays in vehicles compatible with Volkswagen, fits Audi, and fits Porsche. Replacing these high-load components often resolves persistent fault codes like P0230 (Fuel Pump Circuit) and P0691 (Fan Control) without expensive dealership diagnostics.Applications Include:Powertrain Management: Compatible with Volkswagen Jetta and fits Audi A4 fuel pump circuits.Thermal Control: Manages radiator cooling fans for models compatible with Tiguan and fits Audi Q5.Chassis Systems: Compatible withPorsche Cayenne power distribution.Ignition Support: Restores integrity to Terminal 15 and Terminal 30 circuits.How to Choose:Before installation, verify the "645" stamp on the top of your original relay and match the 4-pin layout with OE part number 4H0951253A. Ensure the relay seats firmly into the socket for a vibration-resistant connection.

• [HEAVY-DUTY SPECS] This 12V 40A 4-pin SPST power relay is a precise replacement for OE part number 4H0951253A and V23136-B0006-X080. It features high-purity silver-tin oxide contacts designed to manage 40-Amp surges while maintaining consistent circuit integrity.
• [BROAD COMPATIBILITY] Expertly engineered to be compatible with Volkswagen Jetta, compatible with Volkswagen Tiguan, fits Audi A4, fits Audi Q5, and fits Porsche Cayenne models. It integrates seamlessly into engine bay E-Box panels and Terminal 15/30 systems.
• [FIXES COMMON ISSUES] Restores reliable power to solve intermittent engine stalling, unresponsiveness from the AC blower, and fuel pump failures. Effectively clears diagnostic fault codes such as P0230, P0691, and P069E related to power distribution malfunctions.
• [PREMIUM BUILD] Constructed with an upgraded heat-resistant PA66 nylon housing to survive extreme engine bay temperatures. The high-conductivity internal electromagnetic coils ensure a stable 12V connection without causing parasitic battery drain or erratic clicking sounds.
• [MAINTENANCE RELIABILITY] This set provides two units for multi-system maintenance, serving as a direct plug-and-play solution for the ignition, cooling fan, or horn circuits. Replacing worn-out relays in pairs helps maintain balanced electrical resistance across your vehicle’s wiring harness.