Standard Ignition RY-294 HVAC Automatic Temperature Control (ATC) Relay

HVAC Relay for Chrysler and Dodge Applications

Standard Ignition RY-294 is an HVAC automatic temperature control relay built for 12-volt systems that need reliable switching in demanding underhood conditions. It uses a 5-blade male terminal layout with a rectangular 1-connector design and a 25-amp rating for radiator fan switch operation.

Compatible With 1974 Chrysler Imperial, 1974 Chrysler New Yorker, 1974 Chrysler Newport, 1974 Chrysler Town & Country, and 1974 Dodge Monaco. This part number, RY-294, is a direct-fit relay choice for select Chrysler and Dodge HVAC control applications.

Key Features

• Part type: HVAC automatic temperature control relay
• 12-volt electrical system application
• 25-amp amperage rating
• Rectangular connector shape with 1 connector
• 5 male blade terminals for secure electrical connection
• Radiator fan switch function
• Composite housing helps protect against heat and severe underhood exposure
• Brass or copper contacts are used where specified for wear resistance

Detailed Description

Standard Ignition RY-294 is manufactured to support HVAC control circuits that rely on consistent relay operation. The composite housing is built to handle harsh temperature swings and underhood conditions, while specified brass or copper contacts support long-term electrical performance. Standard Ignition produces this relay under controlled manufacturing processes with TS16949 and ISO9001 certified plants, helping ensure the part matches the intended vehicle application.

For 1974 Chrysler Imperial, New Yorker, Newport, and Town & Country, as well as 1974 Dodge Monaco, this relay serves as an OE-style replacement for HVAC automatic temperature control and radiator fan switch functions. If you are replacing a failing RY-294 relay, this unit provides the correct terminal layout and electrical rating for the listed vehicles.

This part cross-references FEL-PRO 35788 for the same application.

Common Problems This Relay Can Solve

• Radiator fan not switching on when commanded
• Intermittent HVAC control relay operation
• Blower or temperature control circuit switching issues
• Heat-related relay failure in the engine compartment
• Electrical contact wear causing inconsistent performance

Installation Notes and Tips

Verify the 5-terminal blade layout, connector shape, and 12-volt system requirements before installation. Inspect the relay connector, terminals, and surrounding wiring for corrosion, heat damage, or looseness before installing the new unit. Confirm the vehicle application against the listed fitment for Chrysler Imperial, New Yorker, Newport, Town & Country, and Dodge Monaco models.

Quality Assurance

Standard Ignition manufactures this relay under stringent quality requirements with TS16949 and ISO9001 certified production processes. That controlled manufacturing approach supports consistent fit and electrical performance for the specified 1974 Chrysler and Dodge applications.