Standard Ignition RY-118 HVAC Temperature Delay Relay

HVAC Temperature Delay Relay Overview

Standard Ignition RY-118 is a 12-volt HVAC temperature delay relay built for vehicles that need reliable relay control in demanding underhood conditions. It uses a rectangular, female connector with four male blade terminals and includes a mounting bracket for secure installation.

Compatible With select 1987-1990 Chrysler, Dodge, and Plymouth applications, including Dodge Caravan, Plymouth Voyager, and Dodge D-series trucks, this relay supports OE-style electrical function where the original unit has failed.

Key Features

• 12-volt HVAC temperature delay relay
• Female rectangular connector with 1 connector interface
• 4 male blade terminals for direct electrical connection
• Mounting bracket included for stable placement
• Composite housing helps protect the relay in harsh temperature and underhood environments
• Brass or copper contacts are used where specified for wear resistance
• Manufactured under TS16949 and ISO9001 certified processes

Detailed Description

The Standard Ignition RY-118 is engineered as an OE-style relay for HVAC-related control functions, including fuel pump relay applications listed in the fitment data. It is built with quality-controlled materials and manufacturing standards to help maintain consistent electrical performance in older Chrysler, Dodge, and Plymouth platforms. If you are servicing a 1988 Dodge Caravan, 1989 Plymouth Reliant, or 1990 Plymouth Voyager, RY-118 provides a direct replacement option for the specified configurations.

This part cross-references Gates 19942 for the same application.

What This Relay Helps Address

• Intermittent relay operation caused by worn internal contacts
• No-start conditions related to fuel pump relay failure
• HVAC control issues tied to delayed relay response
• Electrical faults from heat-damaged relay housings
• Loose mounting or poor retention at the relay location

Installation Notes and Tips

• Verify connector shape, terminal count, and mounting style before installation.
• Confirm the vehicle uses a 12-volt relay with a rectangular female connector and four blade terminals.
• Match the OE number and fitment notes for your exact year, make, and model.
• Inspect the connector terminals and surrounding wiring for corrosion or heat damage before installing the new relay.

Quality Assurance

Standard Ignition manufactures this relay under controlled quality requirements with TS16949 and ISO9001 certified plants. The brand’s OE manufacturing background supports consistent part-to-vehicle matching for the listed Chrysler, Dodge, and Plymouth applications.