MAH-112-C-4 12V 5-Pin Automotive Relay (2-Pack) 40/30 Amp SPDT with Mounting Bracket, Replacement for MAH-112-C-4R, High Current Relay for Car Truck Marine RV, Built-in Resistor for Circuit Protection

High-Performance 40/30A Automotive Relay with Integrated Mounting TabThe MAH-112-C-4 is the industry-standard choice for demanding automotive electrical applications. Whether you are replacing a faulty factory relay or wiring new high-power accessories, this 5-pin SPDT relay delivers consistent, heavy-duty performance. The integrated mounting bracket eliminates the need for external sockets in many setups, providing a direct-to-chassis mounting option for a cleaner engine bay.Technical Specifications:Model: MAH-112-C-4 / MAH-112-C-4RVoltage: 12V DC (Coil) / 14VDC (Contact)Current Rating: 40A (NO) / 30A (NC)Pin Configuration: 5-Pin SPDT (30, 85, 86, 87, 87a)Circuit Protection: Built-in ResistorTerminal Material: Tin-Plated CopperMounting: Built-in Plastic Tab with HoleInterchange & Cross-Reference:Compatible with MAH-112-C-4RReplacement for most standard 5-pin automotive relaysFits universal car, truck, RV, and marine 12V systemsFinal Buyer Warning: IMPORTANT: To ensure 100% compatibility, please verify your original part number and terminal configuration (5-Pin SPDT) against our product images prior to purchase. Cross-referencing physical dimensions and the current rating (30/40A) with your existing unit is essential to prevent incorrect fitment or circuit overload. Model MAH-112-C-4 is a precision replacement component.

• SPECIFICATIONS & PIN DEFINITION: Professional-grade 12V DC (14VDC contact) power relay, model MAH-112-C-4. Features a 5-Pin SPDT (Single Pole Double Throw) configuration with a heavy-duty rating of 40A (Normally Open) and 30A (Normally Closed). Integrated plastic mounting tab allows for secure and clean installation in engine bays
• UNIVERSAL COMPATIBILITY: Precision-engineered to be a direct replacement for MAH-112-C-4R and compatible with standard Bosch-style 5-pin sockets. Ideal for universal applications in cars, off-road vehicles, trucks, trailers, marine equipment, and DIY wiring projects
• DIAGNOSTIC SOLUTION & PROTECTION: Designed with an internal resistor to suppress transient voltage spikes. This prevents EMF interference and protects sensitive vehicle ECUs and control modules from damage during relay switching, ensuring long-term electrical stability
• DUAL-MATERIAL CRAFTSMANSHIP: Externally fitted with Tin-Plated Terminals for maximum corrosion resistance in humid or salty environments. Internally utilizes Internal AgSnO2 Contacts (Silver Tin Oxide) for superior arc-resistance and reliable high-current switching endurance
• REPLACEMENT VALUE: Each unit undergoes strict factory testing to guarantee high-performance standards. This 2-Pack Replacement Part set provides a durable solution for controlling high-wattage accessories such as cooling fans, off-road LED bars, fuel pumps, and car horns