Standard Ignition HR-140 Ignition Warning Relay

Ignition Warning Relay for Classic GM Applications

Standard Ignition HR-140 is a 12-volt ignition warning relay built for classic Chevrolet, GMC, Oldsmobile, and Pontiac applications. It uses a 4-terminal layout with a female/no-connector interface, male terminals, and an included mounting bracket for direct replacement service.

Built for underhood electrical service, this relay uses a composite housing to help withstand heat and harsh engine-bay conditions. Standard Ignition manufactures this part to strict quality standards for vehicles such as the Chevrolet Camaro, Chevrolet Impala, and Pontiac GTO.

Key Features

• Part number HR-140 ignition warning relay
• 12-volt electrical system application
• 30 amp amperage rating
• 4-terminal design with male terminals
• Female connection style with no connector supplied
• Mounting bracket(s) included
• Composite housing for underhood durability
• Brass or copper contacts used where specified for wear resistance

Detailed Description

The Standard Ignition HR-140 is an ignition warning relay used in a wide range of classic GM vehicles, including Chevrolet Caprice, Nova, Corvette, El Camino, Impala, Camaro, Monte Carlo, GMC vans, and Pontiac GTO applications. It is also listed for select Oldsmobile models and other Chevrolet passenger cars and trucks from the 1960s and early 1970s. If you are searching for a replacement ignition warning relay for a 1967-1970 Chevrolet Camaro or a 1967-1968 Pontiac Firebird, HR-140 is a direct-fit service part for the listed applications.

Standard Ignition builds this relay with composite housings to help protect internal components from temperature extremes and severe underhood conditions. Where specified, brass or copper contacts are used to support longer service life. The part is manufactured under TS16949 and ISO9001 certified processes to maintain consistent fit and function.

This part cross-references Carlson 16131 for the same application.

What It Helps Address

• Intermittent ignition warning relay operation
• No-start or electrical warning circuit faults tied to the relay
• Heat-related relay failure in the engine compartment
• Worn relay contacts causing inconsistent electrical switching
• Replacement needs on restored or maintained classic GM vehicles

Installation Notes and Tips

• Verify the vehicle’s original relay style, terminal count, and mounting arrangement before installation.
• Confirm 12-volt system requirements and the 30 amp rating match the application.
• Inspect the connector terminals and wiring for corrosion, looseness, or heat damage before installing the new relay.
• Use the included mounting bracket(s) to secure the relay in the original location.
• For fitment-sensitive classics, compare the existing part number against HR-140 and listed interchange numbers before service.

Quality Assurance

Standard Ignition manufactures this relay under stringent quality requirements in TS16949 and ISO9001 certified facilities. That process control helps ensure the HR-140 is built for the correct vehicle application and consistent electrical performance.