Standard Ignition RY-664 Fuel Pump Relay

Fuel Pump Relay for Mazda Applications

Standard Ignition RY-664 is a 12-volt fuel pump relay built with a female connector, male blade terminals, and a rectangular 1-connector layout. It includes a mounting bracket and is a direct-fit electrical relay for select Mazda vehicles, including Mazda Miata, Mazda MPV, Mazda MX-3, and Mazda Protege applications.

Key Features

• Fuel pump relay for air and fuel delivery systems
• 12-volt electrical design
• Female connector with rectangular shape
• 4 male blade terminals
• Mounting bracket included for secure installation
• Single relay function
• Standard Ignition RY-664 part number

Detailed Description

Standard Ignition RY-664 is a replacement fuel pump relay used to control power delivery to the fuel pump circuit. Its 4-terminal blade design, rectangular connector, and bracketed mounting style support a clean OE-style electrical connection in the vehicle’s relay system. This part cross-references Four Seasons 20183 for the same application. For buyers searching Mazda Miata fuel pump relay replacement or Mazda MX-3 fuel pump relay RY-664, this relay matches the listed fitment and electrical configuration.

Compatible With 1994-1997 Mazda Miata, N/A; 1996 Mazda MPV, N/A; 1992-1996 Mazda MX-3, N/A; and 1995-1996 Mazda Protege, N/A. Standard Ignition RY-664 is also referenced by interchange numbers AR6169, B57718821A, and R6169.

What It Helps Address

• Fuel pump not receiving relay-controlled power
• Intermittent fuel delivery caused by relay contact wear
• No-start conditions related to relay failure
• Electrical switching issues in the fuel pump circuit
• Relay replacement needs on Mazda Miata, MPV, MX-3, and Protege models

Installation Notes and Tips

Verify the connector shape, terminal count, and mounting style before installation. Match the 12-volt specification and blade terminal layout to the original relay, and inspect the relay socket for corrosion, heat damage, or loose terminals. Confirm vehicle fitment by year and model before replacing the existing fuel pump relay.

Quality Assurance

Standard Ignition supplies replacement electrical components for service applications, and RY-664 is built to match the listed relay configuration for the specified Mazda fitments.