Standard RY348T Starter Relay

Starter Relay for Toyota and Lexus Applications

The Standard RY348T starter relay is a 12-volt electrical relay built for dependable starting-system operation in a wide range of Toyota, Lexus, Scion, Suzuki, and Pontiac vehicles. It uses a 4-terminal male blade design and is built to handle harsh under-hood temperatures, dust, heat, and moisture.

For drivers searching for a starter relay for Toyota Camry, Corolla, RAV4, Tacoma, or Lexus RX350 applications, the RY348T provides an OE-style electrical replacement with the fitment coverage needed for many late-model and earlier import platforms.

• 12-volt starter relay for starting-system control
• 4-terminal male blade configuration
• Durable housing for severe under-hood conditions
• High-quality contacts for long service life
• Epoxy protection against dust, heat, and moisture
• Tested for performance and reliability

Detailed Product Overview

Standard RY348T is engineered as a starter relay replacement for vehicles that use a 4-pin blade-style relay in the starting circuit. The relay’s contact design and protective housing help maintain consistent electrical performance in demanding engine-bay environments. This part cross-references Standard Ignition RY-348 and Febi-Bilstein 36167 for the same application.

Compatible With Toyota 4Runner, Camry, Corolla, RAV4, Tacoma, Tundra, Sienna, Highlander, Sequoia, Prius, Venza, and related Lexus and Scion models across the listed years, including Fits 2001-2024 Toyota Corolla, N/A and Fits 2007-2020 Lexus RX350, N/A. It is also listed for select Suzuki, Pontiac Vibe, and other import applications.

What This Relay Helps Address

• No-crank condition caused by relay failure
• Intermittent starter engagement
• Weak or inconsistent electrical switching in the starting circuit
• Heat- or moisture-related relay degradation
• Starting-system electrical faults tied to worn relay contacts

Installation Notes and Fitment Tips

Verify the relay terminal layout before installation: male blade terminals, 4-terminal configuration, and 12-volt operation. Match the vehicle’s original relay style and confirm the OE reference where listed, such as Toyota Corolla applications with OE No. 90987-02020. Because fitment varies by model year and equipment, compare the original relay to the replacement part before installation.

Quality Assurance

Standard states that this relay is tested for performance and reliability. The housing and epoxy sealing are intended to help protect the relay from dust, heat, moisture, and severe under-hood conditions, supporting consistent operation in daily-use starting systems.