Standard Ignition RY-1097 HVAC Blower Motor Relay

Standard Ignition RY-1097 HVAC Relay

Standard Ignition RY-1097 is a 12-volt HVAC blower motor relay used in Mercedes-Benz cooling and fan control applications. It features a square connector shape, 4 male bullet terminals, and a 15 amp amperage rating for direct-fit service in select low-speed engine fan circuits.

Compatible With Mercedes-Benz models including the 1992-1993 400E, 1993 400SEL, 1992-1993 500E, 1993 500SEC, 1992-1993 500SEL, 1992-1993 500SL, 1992 400SE, 1986-1991 420SEL, 1995 E420, and 1997 SL500. Standard Ignition RY-1097 is also cross-referenced to URO 0025420119 for the same application.

Key Features

• HVAC blower motor relay with coolant fan relay function
• 12-volt electrical rating
• 15 amp amperage rating
• Square connector shape for application-specific fitment
• 4 male bullet terminals
• Relay contents only

Application Details

This relay is used in Mercedes-Benz low speed engine fan and fan No. 1 circuits, depending on model year and application. The Standard Ignition RY-1097 supports fan control in vehicles such as the Mercedes-Benz 400E, 500E, 420SEL, and SL500, helping restore proper relay operation in the HVAC and engine cooling system.

What It Helps Fix

• Inoperative low speed engine fan operation
• Intermittent coolant fan relay function
• HVAC blower or fan control relay failure
• Cooling fan that does not switch on at the correct time
• Electrical relay-related fan performance issues

Installation Notes

Verify connector shape, terminal type, and amperage rating before installation. This relay uses a square connector with male bullet terminals and does not include a mounting bracket. Confirm the vehicle’s fan circuit and part number match the original relay before replacement.

Quality Assurance

Standard Ignition supplies electrical components for service replacement applications, and RY-1097 is built to match the listed relay specifications for the confirmed Mercedes-Benz fitments.