Standard Ignition RY-899 A/C Compressor Control Relay
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Standard Ignition

Standard Ignition RY-899 A/C Compressor Control Relay

Brand Standard Ignition RY-899
Connector Shape Rectangular
Contents Relay
Continuous Duty No
Functions Relay
Mounting Bracket(s) Included No
Terminal Gender Male
Terminal Type Blade
Voltage 12
Fits Volkswagen · 8 vehicles

A/C compressor control relay. Controls air conditioning operation with a 12-volt relay design.

Square connector. Uses a 6-blade terminal layout for a secure electrical connection.

Male terminals and relay-only contents keep the replacement straightforward.

Cross-references Bosch 16139, Dynomax 36211 and Standard Ignition RY-899 for the same application. See all 12.

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Standard Ignition RY-899 A/C Relay

The Standard Ignition RY-899 is a 12-volt A/C compressor control relay built for HVAC electrical control in select Volkswagen applications. It uses a square connector shape, 6 male blade terminals, and is supplied as a relay only for direct replacement service.

Key Features

  • Part number: RY-899
  • Function: air condition control relay
  • Voltage: 12 V
  • Connector shape: square
  • Terminal type: blade, male terminals
  • Terminal quantity: 6
  • Contents: relay
  • Fits 1998-2005 Volkswagen Passat

Detailed Description

Standard Ignition RY-899 is an A/C compressor control relay used in HVAC relay circuits to switch compressor control power in the vehicle electrical system. For Volkswagen Passat models from 1998 through 2005, this relay provides the correct terminal layout and connector style for service replacement. The RY-899 part number is also referenced in interchange listings for related applications, including Bosch 16139 and Dynomax 36211.

This part cross-references Bosch 16139 and Dynomax 36211 for the same application.

What It Is Used For

  • Restoring A/C compressor relay operation when the original relay fails
  • Addressing intermittent compressor engagement in the HVAC control circuit
  • Replacing a relay with damaged blade terminals or connector wear
  • Correcting electrical switching issues in the air conditioning system
  • Servicing a 1998-2005 Volkswagen Passat A/C control circuit

Installation Notes and Tips

Verify the connector shape, terminal count, and terminal gender before installation. Match the relay to the vehicle’s HVAC relay location and confirm the circuit uses a 12-volt relay with a square connector and 6 male blade terminals. Compare the removed relay to Standard Ignition RY-899 to confirm fitment for your Volkswagen Passat.

Quality Assurance

Standard Ignition supplies electrical components for service replacement applications, and this relay is built to match the specified relay configuration for the listed vehicle fitment.

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2005VolkswagenPassatN/A—
2004VolkswagenPassatN/A—
2003VolkswagenPassatN/A—
2002VolkswagenPassatN/A—
2001VolkswagenPassatN/A—
2000VolkswagenPassatN/A—
1999VolkswagenPassatN/A—
1998VolkswagenPassatN/A—
Directly replaces or cross-references 12 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 16139Dynomax — 36211Standard Ignition — RY-8991R32978D091957825-049756-271560-0281AR6404R6404RAA1831V15-71-1030