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Standard Ignition RY-668 Engine Cooling Fan Motor RelayOE Quality 60-Day Returns
Part #: RY-668

Standard Ignition RY-668 Engine Cooling Fan Motor Relay

12 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Mazda, Millenia and Miata
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Not what you need? See all Engine Cooling Fan Motor Relay options

Engine Cooling Fan Motor Relay for Mazda

Standard Ignition RY-668 is a 12-volt engine cooling fan motor relay built with a rectangular female connector, five male blade terminals, and a single connector interface. It is a direct-fit electrical relay for cooling fan control on select Mazda applications, including Mazda Millenia and Mazda Miata.

Key Features

  • Engine cooling fan motor relay for 12-volt systems
  • Rectangular connector design with female connector gender
  • Five male blade terminals for relay circuit connection
  • Single-connector configuration
  • Standard Ignition RY-668 replacement relay
  • Fits 1995-2002 Mazda Millenia and 1994-1997 Mazda Miata

Product Details

Standard Ignition RY-668 is an engine cooling fan motor relay used in the cooling fan control circuit to switch electrical power as commanded by the vehicle system. The relay’s 5-terminal blade design and 12-volt specification match common OE-style relay layouts used in Mazda cooling fan applications. For buyers searching for a Mazda Millenia cooling fan relay or a Mazda Miata engine cooling fan motor relay, RY-668 provides a direct replacement option for the listed model years. This part cross-references Four Seasons 20219 for the same application.

What It Helps Fix

  • Cooling fan not turning on
  • Cooling fan running intermittently
  • Relay-related overheating concerns
  • Electrical switching faults in the fan circuit
  • Failed relay causing inconsistent fan operation

Installation Notes and Tips

Verify connector shape, terminal count, and voltage before installation. Match the relay location and wiring layout to the original part on the vehicle. Confirm the cooling fan circuit diagnosis before replacing the relay, and inspect related fuses, connectors, and wiring for heat damage or corrosion.

Quality Assurance

Standard Ignition supplies replacement electrical components for automotive repair applications. RY-668 is built to match the listed relay specifications for the confirmed Mazda fitments.

BrandStandard Ignition
Part NumberRY-668
Connector GenderFemale
Connector ShapeRectangular
ContentsRelay
Continuous DutyNo
FunctionsRelay
Terminal GenderMale
Terminal TypeBlade
Voltage12

This part fits 12 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2002MazdaMilleniaN/A
2001MazdaMilleniaN/A
2000MazdaMilleniaN/A
1999MazdaMilleniaN/A
1998MazdaMilleniaN/A
1997MazdaMiataN/A
1997MazdaMillenia2.5LV6N/A
1996MazdaMiataN/A
1996MazdaMillenia2.5LV6N/A
1995MazdaMiataN/A
1995MazdaMillenia2.5LV6N/A
1994MazdaMiataN/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:

1R15502021925-036056-1973AR6173EE1267720R6173RAA1921

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