Standard Ignition RY1999 Engine Cooling Fan Resistor

Engine Cooling Fan Resistor for GM Trucks and SUVs

Standard Ignition RY1999 is an engine cooling fan resistor used in select GM cooling fan control systems. It is built with a female oval connector, one connector cavity, and male blade terminals to match the original electrical interface on supported applications.

Key Features

• Engine cooling fan resistor for fan speed control circuits
• Female oval connector with 1 connector interface
• 2 male blade terminals for direct electrical connection
• OE-style replacement for service on GM cooling systems
• Cross-references Standard Ignition RY1999 for the same application

Detailed Description

Standard Ignition RY1999 is a replacement engine cooling fan resistor used in cooling fan, clutch, and motor applications. It is engineered with a female oval connector and male blade terminals to match the factory-style connection used on supported vehicles. This part is commonly selected when servicing cooling fan control concerns on 2008-2013 Chevrolet Tahoe, 2009-2013 Chevrolet Silverado 1500, 2009-2013 GMC Sierra 1500, 2008-2013 GMC Yukon, and 2009-2013 Cadillac Escalade. This part cross-references 25880376 for the same application.

What It Helps Fix

• Cooling fan operation stuck on one speed
• Intermittent radiator fan performance
• Loss of fan speed control in the cooling circuit
• Electrical connection issues at the fan resistor
• Overheating concerns caused by fan control faults

Installation Notes and Tips

Verify connector shape, terminal style, and vehicle application before installation. Confirm the original resistor location and inspect the fan control wiring, connector terminals, and surrounding harness for heat damage or corrosion. For fitment reference, this part fits 2008-2013 Chevrolet Tahoe, 2009-2013 Chevrolet Silverado 1500, 2009-2013 GMC Sierra 1500, 2008-2013 GMC Yukon, and 2009-2013 Cadillac Escalade.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and engine management service parts. RY1999 is built to meet the needs of listed GM cooling fan applications and supports service replacement on the specified vehicles.