Bosch Catalytic Converter Temperature Indicator Relay

The Bosch Catalytic Converter Temperature Indicator Relay (also called a catalytic converter temp relay or catalyst temperature warning relay) is an electrical switching component. It is used in the vehicle's circuit that supports catalytic converter temperature indication and monitoring. Like all Bosch automotive relays, it lets a low-current control signal switch a separate, higher-current circuit.

Key Features:

• Engineered by Bosch, a leading OE supplier of automotive electrical and emissions-related components
• Relay design uses two electrically separated circuits, a control circuit and a load circuit
• Built for the demands of under-hood and underbody electrical systems
• Helps keep the catalytic converter temperature indication circuit working reliably
• Direct-replacement design for restoring original circuit function

Bosch designs its relay range for the specific requirements of each vehicle application. Choose the correct variant for your application from the options on this page.