Standard Ignition RY-146 A/C Compressor Cut-Out Relay

Standard Ignition RY-146 A/C Compressor Cut-Off Relay

Standard Ignition RY-146 is a 12-volt A/C compressor cut-off relay built with a 5-blade male terminal layout, a female rectangular connector, and a 10-amp amperage rating. It is a direct-fit relay solution for select Toyota and Lexus HVAC and electrical applications, including Highlander, RX300, 4Runner, Camry, Corolla, Celica, MR2, Supra, Avalon, Paseo, Tercel, SC300, and SC400 coverage.

Key Features

• 12 V relay for HVAC and related electrical control circuits
• 10 A amperage rating
• 5-terminal blade design with male terminals
• Rectangular female connector for application-specific fitment
• Relay function only; no mounting bracket included
• Standard Ignition RY-146 cross-reference replacement for select OE-style applications

Application Details

This A/C compressor cut-off relay is used in vehicle electrical systems where relay-controlled switching is required for compressor disengagement and related HVAC circuit operation. It is listed across a wide range of Toyota and Lexus models, including Fits 2001-2007 Toyota Highlander, N/A; Fits 1999-2003 Lexus RX300, N/A; and Fits 1996-1999 Toyota Celica, N/A. Additional coverage includes Fits 1992-1996 Toyota Camry, N/A, Fits 1993-1997 Toyota Corolla, N/A, and Fits 1996-1998 Toyota 4Runner, Brown. Part number RY-146 is also referenced in interchange listings for related relay applications.

This part cross-references Carlson 19246 and Rostra Powertrain Controls 60-0246 for the same application.

What It Helps Address

• A/C compressor relay failure causing intermittent or inoperative compressor engagement
• HVAC electrical switching issues in Toyota and Lexus systems
• Relay contact wear that can interrupt compressor cut-off control
• Faults related to aging blade-terminal relay connections
• Replacement needs for select Toyota Highlander, RX300, and 4Runner relay applications

Installation Notes

Verify connector shape, terminal count, and amperage rating before installation. This relay uses a 5-blade terminal configuration with a female rectangular connector, so matching the original relay style is important for proper fit. Confirm the vehicle-specific notes in the fitment data, especially where Toyota Camry, Corolla, Celica, and 4Runner applications list stamping or relay position details. Standard Ignition RY-146 should be installed only in applications that match the listed electrical and connector specifications.

Quality Assurance

Standard Ignition supplies electrical components for service replacement use, and this relay is specified with defined voltage, amperage, connector, and terminal details to support accurate part matching. Use the published fitment and interchange data to confirm application before ordering.