HomeStandard Ignition RY-126 A/C Compressor Cut-Out Relay
Part #: RY-126

Standard Ignition RY-126 A/C Compressor Cut-Out Relay

7 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Dodge and Plymouth, Shadow and Sundance
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Reliable A/C Compressor Cut-Off Relay for Dodge Shadow and Plymouth Sundance

The Standard Ignition RY-126 A/C compressor cut-off relay is designed specifically for HVAC systems in Dodge Shadow and Plymouth Sundance models. This relay ensures proper control of the A/C compressor, contributing to efficient climate control and engine starting functions.

  • Connector Gender: Female with 1 rectangular connector
  • Terminal Type: 4 male blade terminals for secure electrical connections
  • Voltage: 12V operation suitable for standard automotive electrical systems
  • Includes mounting bracket(s) for easy installation
  • Functions as a starter relay and A/C compressor cut-off
  • Continuous duty: No, designed for intermittent operation

Product Details and Specifications

The Standard Ignition RY-126 relay features a female rectangular connector with a single connection point, paired with four male blade terminals to ensure reliable electrical contact. Operating at 12 volts, this relay is engineered for use in HVAC systems of Dodge Shadow and Plymouth Sundance vehicles. The included mounting bracket simplifies installation and secures the relay in place. While not rated for continuous duty, it is optimized for starter and compressor cut-off functions, preventing unnecessary compressor engagement during engine start-up.

Compatible Vehicles and Applications

This A/C compressor cut-off relay is compatible with the following vehicles:

  • Dodge Shadow
  • Plymouth Sundance

It is designed to replace the original relay responsible for controlling the A/C compressor clutch and starter functions, ensuring proper HVAC operation and engine starting performance.

Common Issues Addressed by This Relay

  • Prevents A/C compressor engagement during engine start to reduce load
  • Resolves intermittent A/C compressor clutch failures
  • Eliminates starter relay malfunctions affecting engine start
  • Addresses relay connection issues due to worn terminals or connectors
  • Helps maintain proper HVAC system cycling and compressor control

Installation Notes and Tips

Installation of the Standard Ignition RY-126 relay requires locating the existing A/C compressor cut-off relay in the HVAC relay panel of Dodge Shadow or Plymouth Sundance models. The included mounting bracket should be used to secure the relay firmly. Ensure the female rectangular connector and male blade terminals are properly aligned and fully seated to avoid electrical faults. Disconnect the battery before installation to prevent electrical shorts.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications. The RY-126 relay undergoes rigorous testing to ensure reliable performance in HVAC and starter applications. While continuous duty operation is not recommended, this relay is built for durability under normal vehicle operating conditions. Warranty coverage details should be confirmed with the parts provider.

BrandStandard Ignition
Part NumberRY-126
Connector GenderFemale
Connector ShapeRectangular
ContentsRelay
Continuous DutyNo
FunctionsStarter
Mounting Bracket(s) IncludedYes
Terminal GenderMale
Terminal TypeBlade
Voltage12

This part fits 7 vehicles. Search below:

YearMakeModelPositionNotes
1988DodgeShadowN/AA/C Clutch Control
1988DodgeShadowN/A
1988PlymouthSundanceN/AA/C Clutch Control
1987DodgeShadowN/AA/C Clutch Control
1987DodgeShadowN/A
1987PlymouthSundanceN/AA/C Clutch Control
1987PlymouthSundanceN/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:

35995422186188922763AR223AR312R3033

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