Standard Motor Products RU408 HVAC Blower Motor Resistor 4-Terminal

The Standard Motor Products RU408 is a direct-fit replacement blower motor resistor designed to restore variable speed control to your vehicle's heating and air conditioning system. This electrically operated resistor controls the electrical current flowing from the fan switch to the blower fan, allowing you to adjust fan speeds for optimal climate control comfort.

Key Features:

• 4-terminal design for precise electrical connection
• Manufactured with high-quality ceramics and copper electrical connectors for accurate resistance values
• Tin-plated steel terminals ensure maximum contact and reliable performance
• Direct-fit OEM replacement designed to match original equipment specifications
• Engineered to restore proper HVAC blower motor variable speed functionality
• Manufactured in IATF 16949-certified facility for consistent quality

Standard Motor Products blower motor resistors undergo rigorous testing including draw, resistance, and RPM validation to ensure they meet or exceed OE specifications. Each resistor is designed to provide long service life and peak performance under all operating conditions. Cross-reference part numbers include 4W7Z19A706A, 973-553, JA1507, and others.