Standard Ignition RY-149 Windshield Wiper Motor Relay

Standard Ignition RY-149 Wiper Motor Relay

Standard Ignition RY-149 is a 12-volt wiper motor relay built for dependable windshield wiper control in select Mercedes-Benz applications. It is a direct-fit relay solution for 1992-1993 Mercedes-Benz 500E and 1993 Mercedes-Benz 500SEL models.

Key Features

• 12 V relay for wiper motor circuit control
• 15 amp amperage rating
• 5 blade terminals with a rectangular female connector
• Mounting bracket included for secure installation
• Composite housing helps protect the relay in harsh underhood temperatures
• Brass or copper contacts are used where specified for wear resistance
• Manufactured under TS16949 and ISO9001 certified processes

Product Details

The Standard Ignition RY-149 wiper motor relay is engineered for vehicles that rely on stable electrical switching for windshield wiper operation. Built with a composite housing and quality-controlled internal components, this relay is designed to handle demanding engine-bay conditions while maintaining consistent circuit performance. If you are servicing a 1992-1993 Mercedes-Benz 500E or a 1993 Mercedes-Benz 500SEL, RY-149 provides the correct relay format with a 5-terminal blade layout and female rectangular connector.

This part cross-references Davico Mfg 19241 for the same application.

What It Helps Address

• Intermittent or non-functioning windshield wipers
• Wiper motor relay electrical switching faults
• Relay-related loss of wiper operation during rain or road spray
• Heat-related relay performance issues in the underhood area
• Connector or terminal mismatch during relay replacement

Installation Notes

Verify the connector shape, terminal count, and voltage before installation. RY-149 uses a female rectangular connector with 5 male blade terminals and a mounting bracket, so confirm the original relay matches these specifications. Always inspect the surrounding wiring and relay socket for corrosion, heat damage, or loose terminals before completing the repair.

Quality Assurance

Standard Ignition manufactures this relay under stringent quality requirements with process control from component selection through final assembly. The brand’s TS16949 and ISO9001 certified plants support consistent part quality for the specified Mercedes-Benz applications.