Standard Ignition RY-427 Engine Cooling Fan Motor Relay

Engine Cooling Fan Relay for OE-Style Cooling Control

Standard Ignition RY-427 is an engine cooling fan motor relay built for 12-volt systems and underhood electrical service. It uses a rectangular connector, 6 male blade terminals, and includes a mounting bracket for direct replacement applications.

Key Features

• Engine cooling fan motor relay for temperature-based fan control
• 12-volt electrical design
• Rectangular connector shape with 6 male blade terminals
• Mounting bracket included for secure installation
• Composite housing for heat and underhood exposure resistance
• Brass or copper contacts where specified for wear resistance

Application Details

Standard Ignition RY-427 is built to meet stringent manufacturing requirements and is produced under TS16949 and ISO9001 certified quality systems. It is a direct-fit relay solution for vehicles that rely on an engine cooling fan motor relay to manage fan operation and protect the cooling system from electrical faults. This part cross-references FEL-PRO 36032 for the same application.

Compatible With 1992-1994 Oldsmobile Silhouette, 1989 Pontiac Firebird, 1988 Buick Century, 1987 Buick Century, 1987 Buick Regal, 1986 Buick Regal, 1984 Buick Century, and 1984 Oldsmobile Cutlass Ciera. Search terms such as Buick Century cooling fan relay, Pontiac Firebird engine cooling fan motor relay, and Oldsmobile Silhouette relay replacement align with this application. The RY-427 part number is also commonly used in relay replacement searches for these vehicles.

What It Helps Address

• Cooling fan not switching on when engine temperature rises
• Intermittent fan operation caused by relay contact wear
• Electrical switching issues in the cooling fan circuit
• Heat-related relay failure in the underhood environment
• Fitment concerns when replacing an OE-style fan relay

Installation Notes and Tips

Verify the connector shape, terminal count, and mounting style against the original relay before installation. Confirm 12-volt system requirements and match the vehicle’s original relay configuration, including any notes such as shut-off delay, 4 terminal, or 1 hole mounting where applicable. Use the vehicle service information to confirm the cooling fan circuit layout before replacing the relay.

Quality Assurance

Standard Ignition manufactures this relay with controlled component and finished-product quality processes. Composite housings are used to help protect the relay in harsh temperature conditions, and specified brass or copper contacts support long service life. The RY-427 part number reflects an OE-style replacement built under certified manufacturing standards.