Standard Ignition RY-266 A/C Compressor Cut-Out Relay

Standard Ignition RY-266 A/C Relay

The Standard Ignition RY-266 is an A/C compressor cut-off relay built for 12-volt HVAC systems that need reliable switching under hood. It uses a square connector shape, 4 male blade terminals, and includes a mounting bracket for secure installation in the vehicle’s relay location.

Key Features

• 40 amp amperage rating for HVAC relay control
• 12-volt electrical design
• Square connector shape with 4 male blade terminals
• Includes bracket for mounting support
• Composite housing helps protect against heat and severe under hood conditions
• Brass or copper contacts are used where specified for wear resistance

Detailed Description

Standard Ignition RY-266 is an A/C compressor cut-off relay engineered for dependable relay function in automotive HVAC circuits. It is built with high-quality composite housing materials to handle harsh temperatures and demanding engine bay conditions, while specified brass or copper contacts support long-term electrical contact performance. This relay is a practical replacement choice for vehicles that need a direct-fit HVAC relay solution, including applications such as 2008-2015 Kia Optima, 1993-1999 Nissan Altima, and 1997-1999 Nissan Sentra fan control service. The RY-266 part number is also referenced in cross applications such as Baldwin 20027 and FEL-PRO 35989.

What It Helps Fix

• A/C compressor relay failure that prevents compressor engagement
• Intermittent HVAC operation caused by worn relay contacts
• Electrical switching issues in the compressor cut-off circuit
• Heat-related relay problems in the engine compartment
• Fan control relay concerns on select Nissan Sentra applications

Installation Notes and Tips

Verify the connector shape, terminal count, and 12-volt system requirements before installation. The RY-266 uses a square connector with 4 male blade terminals and includes a bracket, so confirm the mounting location matches the original relay setup. For fitment-specific service, this part fits 2008-2015 Kia Optima, 1993-1999 Nissan Altima, 1998-1999 Nissan Frontier, 1995-1999 Nissan Pathfinder, 1997-1999 Nissan Sentra fan control, 1995-1998 Nissan 240SX, 1994-1998 Nissan 240SX, 1995-1996 Nissan 300ZX, and 1982 Volkswagen Jetta.

Quality Assurance

Standard Ignition manufactures this relay under stringent quality requirements in TS16949 and ISO9001 certified plants. The brand maintains quality control from component selection through final production to help ensure the right part for the right vehicle.