HomeHVAC > RelaysStandard Ignition RY-123 HVAC Temperature Delay Relay
Part #: RY-123

Standard Ignition RY-123 HVAC Temperature Delay Relay

⚙️ 151 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet, Lexus, and Toyota, 4Runner, Camry, Celica, Corolla, Corona, Cressida, Land Cruiser, LX450, MR2, Nova, Pickup, Previa, Starlet, T100, Tercel, and Van
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Reliable HVAC Temperature Delay Relay for Select Toyota, Lexus, and Chevrolet Models

The Standard Ignition RY-123 HVAC Temperature Delay Relay is designed to provide precise control over your vehicle's heating and cooling system. Engineered for compatibility with various Toyota, Lexus, and Chevrolet models, this relay ensures consistent HVAC performance and temperature regulation.

  • Compatible with Toyota 4Runner, Camry, Celica, Corolla, Corona, Cressida, Land Cruiser, MR2, Pickup, Previa, Starlet, T100, Tercel, and Van models
  • Fits Lexus LX450
  • Compatible with Chevrolet Nova
  • Part number RY-123 for easy identification and replacement
  • Controls HVAC temperature delay to optimize climate system operation

Product Overview and Functionality

The Standard Ignition RY-123 HVAC Temperature Delay Relay plays a critical role in managing the timing of your vehicle’s heating and cooling system. By delaying the activation of certain HVAC components, it helps prevent unnecessary cycling and wear, contributing to a more stable cabin temperature and improved system longevity. This relay is specifically designed to meet the electrical and mechanical requirements of select Toyota, Lexus, and Chevrolet vehicles, ensuring proper fit and function.

Common Applications and Problem Resolution

  • Prevents rapid cycling of the HVAC compressor in Toyota Camry and 4Runner models
  • Helps maintain consistent cabin temperature in Lexus LX450 vehicles
  • Reduces HVAC system noise and wear in Chevrolet Nova
  • Addresses HVAC blower motor delay issues in Toyota Tercel and Corolla
  • Improves overall HVAC system responsiveness in Toyota Land Cruiser and MR2

Installation Notes and Tips

When installing the Standard Ignition RY-123 relay, ensure the vehicle’s ignition is off and the battery is disconnected to avoid electrical hazards. Verify compatibility with your specific make and model before installation. The relay should be mounted securely in the designated HVAC relay socket, typically located in the fuse box or HVAC control module area. Consult your vehicle’s service manual for exact relay location and wiring diagrams.

Quality Assurance and Warranty Information

Standard Ignition parts are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. The RY-123 HVAC Temperature Delay Relay undergoes rigorous quality control testing to ensure consistent operation. Warranty coverage details vary by distributor; please refer to the warranty information provided at the point of purchase for specific terms.

This part fits 151 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1997LexusLX450N/A
1997ToyotaLand CruiserN/A
1997ToyotaPreviaN/A
1996LexusLX450N/A
1996ToyotaLand CruiserN/A
1996ToyotaPreviaN/A
1996ToyotaT100N/A
1995ToyotaLand CruiserN/A
1995ToyotaMR2N/A
1995ToyotaPickupN/A
1995ToyotaPreviaN/A
1995ToyotaT100N/A
1994Toyota4RunnerN/A
1994ToyotaLand CruiserN/A
1994ToyotaMR2N/A
1994ToyotaPickupN/A
1994ToyotaPreviaN/A
1994ToyotaT100N/A
1993Toyota4RunnerN/A
1993ToyotaLand CruiserN/A
1993ToyotaMR2N/A
1993ToyotaPickupN/A
1993ToyotaPreviaN/A
1993ToyotaT100N/A
1992Toyota4RunnerN/A
1992ToyotaLand CruiserN/A
1992ToyotaMR2N/A
1992ToyotaPickupN/A
1992ToyotaPreviaN/A
1991Toyota4RunnerN/A
1991ToyotaLand CruiserN/A
1991ToyotaMR2N/A
1991ToyotaPickupN/A
1991ToyotaPreviaN/A
1990Toyota4RunnerN/A
1990ToyotaLand CruiserN/A
1990ToyotaPickupN/A
1990ToyotaTercelN/A
1990ToyotaTercelN/ASquare shape engine crankcase breather element.
1989Toyota4RunnerN/A
1989ToyotaLand CruiserN/A
1989ToyotaPickupN/A
1989ToyotaTercelN/A
1989ToyotaTercelN/ASquare shape engine crankcase breather element.
1989ToyotaVanN/A
1988ChevroletNovaN/A
1988ChevroletNovaN/ATail Light
1988Toyota4RunnerN/A
1988ToyotaLand CruiserN/A
1988ToyotaPickupN/A
1988ToyotaTercelN/A
1988ToyotaTercelN/AStamping No. 90987-01003
1988ToyotaVanN/A
1987ChevroletNovaN/A
1987ChevroletNovaN/ATail Light
1987Toyota4RunnerN/A
1987ToyotaCorollaN/A
1987ToyotaLand CruiserN/A
1987ToyotaPickupN/A
1987ToyotaTercelN/A
1987ToyotaTercelN/AStamping No. 90987-01003
1987ToyotaVanN/A
1986ChevroletNovaN/A
1986ChevroletNovaN/ATail Light
1986Toyota4RunnerN/A
1986ToyotaCamryN/A
1986ToyotaCorollaN/A
1986ToyotaLand CruiserN/A
1986ToyotaPickupN/A
1986ToyotaTercelN/AStamping No. 90987-01003
1986ToyotaVanN/A
1985ChevroletNovaN/A
1985ChevroletNovaN/ATail Light
1985Toyota4RunnerN/A
1985ToyotaCamryN/A
1985ToyotaCelicaN/A
1985ToyotaCorollaN/A
1985ToyotaLand CruiserN/A
1985ToyotaPickupN/A
1985ToyotaTercelN/AStamping No. 90987-01003
1985ToyotaVanN/A
1984Toyota4RunnerN/A
1984ToyotaCamryN/A
1984ToyotaCelicaN/A
1984ToyotaCelicaN/A3 Blade Term.
1984ToyotaCelicaN/Aw/ Daytime Running Lights
1984ToyotaCorollaN/A
1984ToyotaCressidaN/A
1984ToyotaLand CruiserN/A
1984ToyotaPickupN/A
1984ToyotaStarletN/A
1984ToyotaTercelN/A
1984ToyotaTercelN/AStamping No. 90987-01003
1984ToyotaVanN/A
1983ToyotaCamryN/A
1983ToyotaCelicaN/A3 Blade Term.
1983ToyotaCelicaN/A
1983ToyotaCelicaN/Aw/ Daytime Running Lights
1983ToyotaCorollaN/A
1983ToyotaCressidaN/A
1983ToyotaLand CruiserN/A
1983ToyotaPickupN/A
1983ToyotaStarletN/A
1983ToyotaTercelN/A
1983ToyotaTercelN/AStamping No. 90987-01003
1982ToyotaCelicaN/A3 Blade Term.
1982ToyotaCelicaN/A
1982ToyotaCelicaN/Aw/ Daytime Running Lights
1982ToyotaCorollaN/A
1982ToyotaCoronaN/A
1982ToyotaCressidaN/A
1982ToyotaLand CruiserN/A
1982ToyotaPickupN/A
1982ToyotaStarletN/A
1982ToyotaTercelN/A
1982ToyotaTercelN/AStamping No. 90987-01003
1981ToyotaCelicaN/Aw/ Daytime Running Lights
1981ToyotaCorollaN/A
1981ToyotaCoronaN/A
1981ToyotaCressidaN/A
1981ToyotaLand CruiserN/A
1981ToyotaPickupN/A
1981ToyotaStarletN/A
1981ToyotaTercelN/A
1981ToyotaTercelN/AStamping No. 90987-01003
1980ToyotaCelicaN/Aw/ Daytime Running Lights
1980ToyotaCorollaN/A
1980ToyotaCoronaN/A
1980ToyotaCressidaN/A
1980ToyotaLand CruiserN/A
1980ToyotaLand CruiserN/ANo. 2
1980ToyotaPickupN/A
1980ToyotaTercelN/A
1980ToyotaTercelN/AStamping No. 90987-01003
1979ToyotaCelica2.6LL6N/A
1979ToyotaCelica2.2LL4N/A
1979ToyotaCorollaN/A
1979ToyotaCoronaN/A
1979ToyotaCressidaN/A
1979ToyotaLand Cruiser4.2LL6N/A
1979ToyotaLand CruiserN/A
1979ToyotaPickupN/A
1978ToyotaCelicaN/A
1978ToyotaCorollaN/A
1978ToyotaCoronaN/A
1978ToyotaCressidaN/A
1978ToyotaLand Cruiser4.2LL6N/A
1978ToyotaPickupN/A
1977ToyotaCelicaN/A
1977ToyotaCorollaN/A
1977ToyotaCoronaN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.