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Standard Ignition RY-129 HVAC Automatic Temperature Control (ATC) RelayOE Quality 60-Day Returns
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Part #: RY-129

Standard Ignition RY-129 HVAC Automatic Temperature Control (ATC) Relay

⚙️ 229 vehicles fit this part
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🚗Fitment: Dodge, Chrysler, Mitsubishi, and Plymouth, Ram 1500 Van, Ram 2500 Van, Ram 3500 Van, B1500, B2500, B3500, Ram 1500, Ram 2500, Ram 3500, Concorde, Intrepid, LeBaron, LHS, New Yorker, Town & Country, B150, B250, B350, Caravan, Grand Caravan, Shadow, Eclipse, Acclaim, Colt, Grand Voyager, Laser, Sundance, Voyager, Daytona, Dynasty, Imperial, Dakota, Monaco, Spirit, Stealth, Viper, TC Maserati, Omni, Lancer, Caravelle, Expo, Gran Fury, Horizon, and Reliant
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Not what you need? Click here for all HVAC Automatic Temperature Control (ATC) Relay options

Reliable HVAC Automatic Temperature Control Relay for Chrysler and Dodge Vehicles

The Standard Ignition RY-129 HVAC Automatic Temperature Control (ATC) Relay is designed to provide consistent and efficient operation of your vehicle's climate control system. Engineered for compatibility with various Chrysler, Dodge, Mitsubishi, and Plymouth models, this relay ensures proper electrical function within your HVAC system.

  • 30 amp amperage rating for dependable current handling
  • Female rectangular connector with one connection point
  • Four male blade terminals for secure electrical contact
  • 12-volt operation suitable for most light trucks and passenger vehicles
  • Compact design without mounting brackets for flexible installation

Technical Details and Compatibility

The RY-129 relay features a 30 amp rating, making it suitable for controlling the automatic temperature control system in vehicles requiring reliable current flow. Its female rectangular connector and four male blade terminals provide a secure and stable connection, minimizing the risk of electrical faults. Operating at 12 volts, this relay is compatible with a wide range of vehicles including Chrysler models like the Concorde, Intrepid, and Town & Country, Dodge vehicles such as the Ram 1500, Dakota, and Caravan, as well as Mitsubishi and Plymouth models like the Eclipse and Sundance.

Applications and Common Issues Addressed

  • Restores proper function to HVAC automatic temperature control systems
  • Resolves intermittent or non-functioning climate control relays
  • Eliminates HVAC system electrical failures related to relay faults
  • Prevents overheating or underperformance of the temperature control unit
  • Supports consistent blower motor and compressor operation

Installation Notes and Tips

Installation of the Standard Ignition RY-129 relay requires basic electrical knowledge and access to the vehicle’s HVAC relay panel. Ensure the vehicle is powered off before replacing the relay to avoid electrical shock or damage. The relay’s female rectangular connector and blade terminals should be aligned carefully to prevent bent terminals. Since this relay does not include mounting brackets, secure it properly within the relay housing to avoid vibration-related issues.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The RY-129 relay undergoes rigorous testing to verify electrical integrity and fitment accuracy. This product is backed by Standard Ignition’s limited warranty, providing coverage against defects in materials and workmanship under normal use.

BrandStandard Ignition
Part NumberRY-129
Amperage Rating30 A
Connector GenderFemale
Connector ShapeRectangular
FunctionsRelay
Mounting Bracket(s) IncludedNo
Terminal GenderMale
Terminal TypeBlade
Voltage12

This part fits 229 vehicles. Search below:

YearMakeModel# DoorsLitersCylindersPositionNotes
1997DodgeRam 1500 VanN/A
1997DodgeRam 2500 VanN/A
1997DodgeRam 3500 VanN/A
1996DodgeB1500N/A
1996DodgeB2500N/A
1996DodgeB3500N/A
1996DodgeRam 1500N/A
1996DodgeRam 1500 VanN/ARear Aux. Unit
1996DodgeRam 1500 VanN/A
1996DodgeRam 2500N/A
1996DodgeRam 2500 VanN/ARear Aux. Unit
1996DodgeRam 2500 VanN/A
1996DodgeRam 3500N/A
1996DodgeRam 3500 VanN/ARear Aux. Unit
1996DodgeRam 3500 VanN/A
1995DodgeB15005.2LV8N/A
1995DodgeB15003.9LV6N/A
1995DodgeB1500N/A
1995DodgeB25003.9LV6N/A
1995DodgeB25005.9LV8N/A
1995DodgeB25005.2LV8N/A
1995DodgeB2500N/A
1995DodgeB35005.9LV8N/A
1995DodgeB35005.2LV8N/A
1995DodgeB3500N/A
1995DodgeRam 1500N/A
1995DodgeRam 1500 VanN/ARear Aux. Unit
1995DodgeRam 1500 VanN/A
1995DodgeRam 2500N/A
1995DodgeRam 3500N/A
1994ChryslerConcordeN/A
1994ChryslerIntrepidN/A
1994ChryslerLeBaronN/A
1994ChryslerLHSN/A
1994ChryslerNew YorkerN/A
1994ChryslerTown & CountryN/A
1994DodgeB150N/A
1994DodgeB250N/A
1994DodgeB350N/A
1994DodgeCaravanN/A
1994DodgeGrand CaravanN/A
1994DodgeRam 1500N/A
1994DodgeRam 2500N/A
1994DodgeRam 3500N/A
1994DodgeShadowN/A
1994MitsubishiEclipseN/A
1994PlymouthAcclaimN/A
1994PlymouthGrand VoyagerN/A
1994PlymouthLaserN/A
1994PlymouthSundanceN/A
1994PlymouthVoyagerN/A
1993ChryslerConcordeN/A
1993ChryslerDaytonaN/A
1993ChryslerDynastyN/A
1993ChryslerImperialN/A
1993ChryslerIntrepidN/A
1993ChryslerLeBaronN/A
1993ChryslerNew YorkerN/A
1993ChryslerTown & CountryN/A
1993ChryslerTown & CountryN/Aw/ Skirt
1993DodgeB1505.2LV8N/A
1993DodgeB1503.9LV6N/A
1993DodgeB150N/ARear Aux. Unit
1993DodgeB2505.9LV8N/A
1993DodgeB2503.9LV6N/A
1993DodgeB2505.2LV8N/A
1993DodgeB250N/ARear Aux. Unit
1993DodgeB3505.9LV8N/A
1993DodgeB3505.2LV8N/A
1993DodgeB350N/ARear Aux. Unit
1993DodgeCaravanN/A
1993DodgeGrand CaravanN/A
1993DodgeShadowN/A
1993PlymouthAcclaimN/A
1993PlymouthGrand VoyagerN/A
1993PlymouthLaserN/A
1993PlymouthSundanceN/A
1993PlymouthVoyagerN/A
1992ChryslerDaytonaN/Aw/o Bracket; w/ Skirt; OE No. 4373307; 5 Blade Term.
1992ChryslerDynastyN/A
1992ChryslerImperialN/A
1992ChryslerLeBaronN/A
1992ChryslerNew YorkerN/A
1992ChryslerTown & CountryN/A
1992DodgeB1503.9LV6N/A
1992DodgeB1505.2LV8N/A
1992DodgeB2503.9LV6N/A
1992DodgeB2505.9LV8N/A
1992DodgeB2505.2LV8N/A
1992DodgeB3505.2LV8N/A
1992DodgeB3505.9LV8N/A
1992DodgeCaravanN/A
1992DodgeColtN/Aw/ Skirt; OE No. 4373307; 5 Blade Term.
1992DodgeDakotaN/AOE No. 4373307; 5 Blade Term.
1992DodgeDaytonaN/Aw/ Bracket; OE No. 4373307; 5 Blade Term.
1992DodgeGrand CaravanN/A
1992DodgeMonacoN/Aw/ Bracket; OE No. 4373307; 5 Blade Term.
1992DodgeShadowN/A
1992DodgeSpiritN/Aw/ Bracket; OE No. 4373307; 5 Blade Term.
1992DodgeSpiritN/A
1992DodgeStealthN/Aw/ Bracket; OE No. 4373307; 5 Blade Term.
1992DodgeViperN/Aw/ Bracket; OE No. 4373307; 5 Blade Term.
1992PlymouthAcclaimN/A
1992PlymouthGrand VoyagerN/Aw/ Skirt; OE No. 4373307; 5 Blade Term.
1992PlymouthGrand VoyagerN/A
1992PlymouthLaserN/AOE No. 4373307
1992PlymouthSundanceN/Aw/ Skirt; OE No. 4373307; 5 Blade Term.
1992PlymouthSundanceN/A
1992PlymouthVoyagerN/Aw/ Skirt; OE No. 4373307; 5 Blade Term.
1992PlymouthVoyagerN/A
1991ChryslerDaytonaN/Aw/o Bracket; w/ Skirt; OE No. 4373307; 5 Blade Term.
1991ChryslerDynastyN/A
1991ChryslerImperialN/A
1991ChryslerLeBaronN/A
1991ChryslerLeBaronN/Aw/ Skirt
1991ChryslerLeBaron4 DoorN/A
1991ChryslerNew YorkerN/A
1991ChryslerTown & Country3.3LV6N/A
1991ChryslerTown & CountryN/A
1991ChryslerTown & CountryN/Aw/ Skirt
1991DodgeB1503.9LV6N/A
1991DodgeB1505.2LV8N/A
1991DodgeB150N/A
1991DodgeB2503.9LV6N/A
1991DodgeB2505.9LV8N/A
1991DodgeB2505.2LV8N/A
1991DodgeB250N/A
1991DodgeB3505.9LV8N/A
1991DodgeB3505.2LV8N/A
1991DodgeB350N/A
1991DodgeCaravan3.0LV6N/A
1991DodgeCaravan2.5LL4N/A
1991DodgeCaravan3.3LV6N/A
1991DodgeCaravanN/A
1991DodgeColtN/Aw/ Bracket; OE No. 4373307; 5 Blade Term.
1991DodgeDakotaN/Aw/ Skirt; OE No. 4373307; 5 Blade Term.
1991DodgeDaytonaN/Aw/ Bracket; OE No. 4373307; 5 Blade Term.
1991DodgeGrand Caravan3.3LV6N/A
1991DodgeGrand CaravanN/A
1991DodgeMonacoN/Aw/ Skirt; 5 Term.
1991DodgeShadowN/A
1991DodgeSpirit2.2LL4N/A
1991DodgeSpirit2.5LL4N/A
1991DodgeSpirit3.0LV6N/A
1991DodgeSpiritN/A
1991DodgeStealthN/Aw/ Bracket; OE No. 4373307; 5 Blade Term.
1991PlymouthAcclaimN/A
1991PlymouthGrand Voyager3.3LV6N/A
1991PlymouthGrand VoyagerN/A
1991PlymouthLaserN/Aw/ Skirt; OE No. 4373307; 5 Blade Term.
1991PlymouthSundance2.2LL4N/A
1991PlymouthSundance2.5LL4N/A
1991PlymouthSundanceN/A
1991PlymouthVoyager2.5LL4N/A
1991PlymouthVoyager3.3LV6N/A
1991PlymouthVoyager3.0LV6N/A
1991PlymouthVoyagerN/A
1990ChryslerImperialN/A
1990ChryslerLeBaronN/A
1990ChryslerNew YorkerN/A
1990ChryslerTown & CountryN/A
1990ChryslerTown & Country3.3LV6N/A
1990DodgeB1503.9LV6N/A
1990DodgeB1505.2LV8N/A
1990DodgeB150N/A
1990DodgeB2503.9LV6N/A
1990DodgeB2505.2LV8N/A
1990DodgeB2505.9LV8N/A
1990DodgeB250N/A
1990DodgeB3505.2LV8N/A
1990DodgeB3505.9LV8N/A
1990DodgeB350N/A
1990DodgeCaravanN/A
1990DodgeColtN/AOE No. 4373307; 5 Blade Term.
1990DodgeDakotaN/Aw/ Skirt; OE No. 4373307; 5 Blade Term.
1990DodgeDaytonaN/Aw/ Bracket; OE No. 4373307; 5 Blade Term.
1990DodgeGrand CaravanN/A
1990DodgeMonacoN/Aw/ Skirt; w/ Bracket; OE No. 4373307; 5 Blade Term.
1990DodgeShadowN/A
1990DodgeSpiritN/A
1990PlymouthAcclaimN/Aw/o Skirt; 5 Blade Term.
1990PlymouthAcclaimN/A
1990PlymouthGrand Voyager3.3LV6N/A
1990PlymouthGrand VoyagerN/A
1990PlymouthSundanceN/A
1990PlymouthVoyager2.5LL4N/A
1990PlymouthVoyager3.0LV6N/A
1990PlymouthVoyagerN/A
1989ChryslerLeBaronN/A
1989ChryslerNew YorkerN/A
1989DodgeB1505.2LV8N/A
1989DodgeB1503.9LV6N/A
1989DodgeB150N/A
1989DodgeB2503.9LV6N/A
1989DodgeB2505.9LV8N/A
1989DodgeB2505.2LV8N/A
1989DodgeB250N/A
1989DodgeB3505.2LV8N/A
1989DodgeB3505.9LV8N/A
1989DodgeB350N/A
1989DodgeCaravanN/A
1989DodgeGrand CaravanN/A
1989DodgeLancerN/A
1989DodgeShadow2.5LL4N/A
1989DodgeShadow2.2LL4N/A
1989DodgeSpiritN/A
1989DodgeSpirit2.5LL4N/A
1989DodgeSpirit3.0LV6N/A
1989PlymouthAcclaimN/Aw/o Skirt; 5 Blade Term.
1989PlymouthAcclaimN/A
1989PlymouthExpoN/A
1989PlymouthGrand VoyagerN/A
1989PlymouthReliantN/A
1989PlymouthSundanceN/A
1989PlymouthVoyagerN/A
1988DodgeB1505.2LV8N/A
1988DodgeB1503.9LV6N/A
1988DodgeB2505.2LV8N/A
1988DodgeB2503.9LV6N/A
1988DodgeB2505.9LV8N/A
1988DodgeB3505.2LV8N/A
1988DodgeB3505.9LV8N/A
1988DodgeLancer2.5LL4N/A
1988DodgeLancer2.2LL4N/A
1988DodgeShadow2.2LL4N/A
1988DodgeShadow2.5LL4N/A
1987DodgeLancer2.2LL4N/A
1987DodgeLancer2.5LL4N/A
1987DodgeShadow2.2LL4N/A

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

This part directly replaces or is cross-referenced with the following part numbers:

033220418115-50975192611R105436015437330756-1549AR237AR698R3250RAA1336

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.