Standard Ignition RY-549 Engine Cooling Fan Module

Engine Cooling Control for Audi Applications

The Standard Ignition RY-549 engine cooling fan module is built for vehicles that need reliable fan control under demanding under-hood temperatures. It uses a composite housing to help protect internal components, along with brass or copper contacts where specified for improved wear resistance.

Compatible With 1998-2001 Audi A6 and A6 Quattro with heavy duty cooling, plus 1998-1999 Audi A4 and A4 Quattro module applications. The RY-549 is a direct-fit cooling fan control module for Audi A6, Audi A6 Quattro, Audi A4, and Audi A4 Quattro service needs.

Key Features

• Engine cooling fan module for cooling system control
• Composite housing helps resist harsh temperature exposure
• Brass or copper contacts where specified for added durability
• 3 connector interfaces with rectangular connector shape
• 10 blade terminals for secure electrical connection
• Built to stringent quality requirements for consistent fit and function

Detailed Product Overview

Standard Ignition RY-549 is a cooling fan control module designed for OE-style service on select Audi platforms. It is manufactured in TS16949 and ISO9001 certified facilities, with quality control maintained from component sourcing through final assembly. This part cross-references Dorman OE Solutions 902-434 for the same application.

Use the RY-549 when servicing cooling fan control on 1998-2001 Audi A6 and A6 Quattro models with heavy duty cooling, as well as 1998-1999 Audi A4 and A4 Quattro module applications. The part number RY-549 is commonly searched for Audi cooling fan module replacement and engine cooling fan relay service.

Common Issues This Part May Address

• Cooling fans that do not switch on at the proper temperature
• Intermittent fan operation during stop-and-go driving
• Overheating caused by poor fan control
• Electrical connection problems at the fan control module
• Failed relay function within the cooling system circuit

Installation Notes and Tips

Verify connector style, terminal count, and vehicle application before installation. The RY-549 uses male and female connector and terminal configurations with a rectangular connector shape, so matching the original module layout is important for proper electrical connection. Confirm the vehicle is equipped with the listed cooling configuration before replacing the module.

Quality Assurance

Standard Ignition manufactures this part under controlled quality processes in TS16949 and ISO9001 certified plants. The brand’s OE manufacturing background supports consistent component quality for cooling system service, and the RY-549 is built to meet stringent production standards.