Standard Ignition RY-270 HVAC Temperature Delay Relay

HVAC Temperature Delay Relay for Dodge Applications

Standard Ignition RY-270 is an HVAC temperature delay relay built for 12-volt systems that need reliable relay control in demanding underhood conditions. It is a direct-fit style replacement for select Dodge B-Series and Ram vans and trucks, including 1990-1997 Dodge B150, B250, B350, Ram 1500, Ram 2500, and Ram 3500 applications.

With a square female connector, 4 male blade terminals, and an included mounting bracket, this relay is specified for straightforward service replacement where the original HVAC relay has failed or become intermittent.

Key Features

• Standard Ignition RY-270 HVAC temperature delay relay
• 12-volt relay with 30 amp amperage rating
• Square female connector with 1 connector interface
• 4 male blade terminals for OE-style electrical connection
• Mounting bracket(s) included for secure installation
• Composite housing helps protect against heat and harsh underhood exposure
• Brass or copper contacts are used where specified for wear resistance

Detailed Description

RY-270 is engineered as an HVAC relay for vehicles that rely on temperature-delay control in the climate system. Standard Ignition manufactures this part under stringent quality requirements, with production controlled from component sourcing through final assembly. The housing material is selected to handle severe temperature swings and underhood conditions, while the contact design supports consistent electrical performance over time.

This part cross-references Four Seasons 19302 and FEL-PRO 36103 for the same application. It also serves as a replacement option for Dodge B150, B250, B350, Ram 1500, Ram 2500, and Ram 3500 models across the listed years, including 1990-1997 Dodge B150 and 1994-1996 Dodge Ram 1500.

What It Helps Fix

• HVAC relay failure causing intermittent blower or compressor control
• Delayed or inconsistent temperature-related relay operation
• Noisy, sticking, or electrically weak relay performance
• Climate control issues traced to a damaged relay housing or terminals
• Replacement needs for OE number 5234202 applications on select 1990 Dodge B150, B250, and B350 models

Installation Notes and Tips

• Verify connector shape, terminal count, and bracket style before installation.
• Confirm the vehicle uses a 12-volt HVAC relay with a square female connector and 4 blade terminals.
• Inspect the relay connector for heat damage, corrosion, or loose terminals before plugging in the new part.
• Use the vehicle fitment notes for compressor cut-off applications on select Ram van models.
• Check the original relay location and mounting bracket arrangement to ensure proper seating.

Quality Assurance

Standard Ignition builds this relay in TS16949- and ISO9001-certified plants, with quality control maintained throughout the manufacturing process. That process helps ensure the part matches the intended vehicle application and meets the electrical and durability requirements expected for HVAC relay service.