Standard Ignition RY-355 Engine Control Module Relay

Engine Control Relay for Mitsubishi Applications

Standard Ignition RY-355 is an Engine Control Module (ECM) relay built for 12-volt systems with a female 2-connector layout and 8 male blade terminals. It is a direct-fit electrical relay for select Mitsubishi Montero, Montero Sport, 3000GT, and Galant applications, including 3000GT models without 4 Wheel Steering.

Key Features

• Engine Control Module (ECM) relay for engine management circuits
• 12-volt electrical design
• Female connector gender with 2 rectangular connectors
• 8 male blade terminals for vehicle-specific connection
• Relay included as the contents
• No mounting bracket included
• Standard Ignition RY-355 replacement part number

Detailed Description

Standard Ignition RY-355 is an ECM relay used in Mitsubishi engine control systems to help route power where the vehicle’s control electronics require it. This relay is listed for 1991-2000 Mitsubishi 3000GT, 1992-2000 Mitsubishi Montero, 1995-1999 Mitsubishi 3000GT, 1996-1998 Mitsubishi Galant, and 1998-2000 Mitsubishi Montero Sport applications, with the 3000GT fitment note for models without 4 Wheel Steering. If you are searching for a Mitsubishi Montero ECM relay or a Mitsubishi Galant engine control relay, RY-355 is the part number to reference.

This part cross-references AR500 and MR224159 for the same application.

What It Helps Address

• Engine control relay failure that can interrupt ECM power delivery
• No-start conditions related to relay circuit faults
• Intermittent electrical operation in the engine control circuit
• Relay contact wear that affects consistent module power
• Replacement needs for Mitsubishi Montero, Montero Sport, 3000GT, and Galant relay service

Installation Notes and Tips

Verify connector shape, terminal count, and 12-volt system requirements before installation. Match the relay to the vehicle’s original ECM relay location and confirm the 3000GT fitment note for models without 4 Wheel Steering. Inspect the connector terminals and surrounding harness for heat damage, corrosion, or looseness before installing Standard Ignition RY-355.

Quality Assurance

Standard Ignition supplies electrical replacement parts for service applications, and this relay is built to match the listed connector and terminal configuration for the specified Mitsubishi vehicles. Confirm fitment by year, model, and application details before ordering.