Standard Ignition RY-640 Door Lock Relay

Standard Ignition RY-640 Relay Overview

The Standard Ignition RY-640 is a 12-volt, 30-amp relay with a rectangular connector, 4 male blade terminals, and push-on mounting. It is used as an air condition control relay and is listed for a wide range of Nissan and INFINITI applications, including Nissan Altima, Maxima, Murano, 350Z, and INFINITI G35 platforms.

Key Features

• 12 V relay with 30 A amperage rating
• Rectangular connector shape with push-on mounting
• 4-terminal design with male blade terminals
• Functions as an air condition control relay
• Direct-fit application coverage for select Nissan and INFINITI vehicles
• Standard Ignition RY-640 part number for catalog matching

Detailed Description

Standard Ignition RY-640 is an electrical relay built for vehicle control circuits that require a 12-volt, 30-amp switching component. Its rectangular connector, blade-style terminals, and push-on mounting style support straightforward replacement in the original relay location. This relay is listed across multiple Nissan and INFINITI models, including 2003-2011 Nissan Altima, 2003-2007 Nissan Murano, 2005-2007 Nissan Maxima, 2009-2018 Nissan 370Z, and 2003-2007 INFINITI G35. The RY-640 part number is also referenced in aftermarket interchange listings for catalog lookup.

This part cross-references Bosch (e.g., 16353, 0332011007) for the same application.

What It Helps Resolve

• Air conditioning relay failure causing intermittent HVAC operation
• No compressor engagement when the control circuit is not switching properly
• Electrical relay wear that interrupts power delivery to the A/C control circuit
• Relay-related HVAC cycling issues in Nissan and INFINITI systems
• Fault tracing when the original relay no longer responds consistently

Installation Notes and Tips

Verify the connector shape, terminal count, terminal gender, and mounting style against the original relay before installation. This relay uses a push-on mount with no mounting bracket or mounting hardware included. Confirm the vehicle’s relay location and circuit function, especially on Nissan Altima, Maxima, Murano, 350Z, and INFINITI G35 applications, to ensure the replacement matches the original electrical specification.

Quality Assurance

Standard Ignition supplies this relay as a cataloged replacement electrical component for specified vehicle applications. Match the part number RY-640 and the listed electrical specifications to the original unit for proper fitment and function.