4016819-12V (Set of 4) 12VDC 20A 4PIN Ultra Micro ISO Automotive Relay, OEM 4016819 General Purpose for Automotive Applications

Specification: Brand New and High Quality Type: Power Relay Model: 4016819 Coil Voltage: 12VDC Resistive load：20A Number of Pins: 4-Pins Contact Form：1 From A Contact material: AgSnO alloy Operate time*2 : 10ms or less Release time*2: 10ms or less Insulation resistance:10MΩ or more Specific Scenarios in a Vehicle: Engine Compartment (Primary Use): Fuel Pump Relay: This is one of the most critical and common applications. The Powertrain Control Module (PCM) triggers this relay to provide high current to the electric fuel pump. A failure here will prevent the vehicle from starting. A/C Compressor Clutch Relay: Engages the clutch for the air conditioning system when the A/C is turned on. Cooling Fan Relay (Low/High Speed): Often used as one of the relays (sometimes multiple are used) that control the radiator cooling fan speeds, triggered by the PCM based on engine temperature. Chassis & Body Control:Starter Relay/Solenoid Relay: Sends the activation signal to the starter solenoid. Power Feed for Accessories: Used as a main power relay for various high-draw accessories or control modules. Trailer Tow Relay: For providing power to trailer lighting circuits. Troubleshooting & Diagnosis:This relay is a very common point of failure for "no-start" conditions (if it's the fuel pump relay) or for A/C and cooling fan issues. It is often located in the under-hood fuse block and can be swapped with a similar, less critical relay (like the A/C relay) for quick diagnostic testing. Package Includes: 4 x 12VDC 20A 4pins General Purpose relays (Part Number: 4016819)

• Compact and low profile design: This 4016819 automotive relay features a micro 280 terminal layout offering a reduced footprint and height. Its miniaturized package saves space and allows for easy installation in tight spaces
• Wide Compatibility: Widely used in power windows,automotive lighting systems, and central locking systems and so on. Compatible with 303-1AH-C-R1 U01 and Ideal for Car Cooling Fan
• SPST 1a contact structure: The relay's contact structure belongs to SPST 1a, which means it has a single normally open contact. This configuration provides a reliable on/off switching capability for your electrical circuits
• Wide operating temperature range: Designed to withstand extreme temperatures, this relay operates reliably in an ambient temperature range of -30°C to 100°C. It can handle both cold-start conditions and high-temperature environments without compromising performance
• Durable and reliable performance: Built with high-quality materials and precision engineering, this Ultra Micro ISO relay ensures long-lasting and dependable performance. Its robust construction and efficient design make it suitable for demanding automotive applications