HomeBelts and Cooling > Accessory Drive Belt System ComponentsINA FT10646 Accessory Drive Belt Tensioner
Part #: FT10646

INA FT10646 Accessory Drive Belt Tensioner

⚙️ 22 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Mazda, 626, Millenia, MX-3, and MX-6
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INA FT10646 Accessory Drive Belt Tensioner

The INA FT10646 is an accessory drive belt tensioner for FEAD systems that need stable belt control in tight engine bays. It is built for high-load engines where vibration damping and consistent belt tension are important for accessory drive performance.

Key Features

  • Accessory drive belt tensioner for front end auxiliary drive systems
  • Engineered for vibration damping in compact installation spaces
  • Supports consistent belt tension under high-load operating conditions
  • Suitable for holistic FEAD maintenance when replacing related drive components
  • INA part number FT10646 for direct catalog identification

Detailed Description

INA FT10646 is an accessory drive belt tensioner used in the FEAD system to help maintain proper belt control across engine-driven accessories. This part cross-references Dayco 89166 for the same application. It is listed for 1994-1997 Mazda MX-6, 1994-1995 Mazda MX-3, 1995-2002 Mazda 626, and 1995-2002 Mazda Millenia. For buyers searching Mazda 626 accessory drive belt tensioner or Mazda Millenia belt tensioner replacement, FT10646 provides a direct catalog match for the confirmed applications.

What It Helps Address

  • Belt noise caused by inconsistent tension
  • Accessory drive vibration in the FEAD system
  • Premature wear on belt-driven components
  • Reduced belt tracking stability
  • Maintenance needs on Mazda 626, Mazda Millenia, MX-6, and MX-3 accessory drive systems

Installation Notes and Tips

Verify the vehicle year, model, and engine accessory drive layout before ordering. Compare the existing tensioner and belt routing to confirm FT10646 matches the installed FEAD configuration. When servicing the belt drive, inspect the belt, pulleys, and adjacent components for wear so the replacement is completed as a system.

Quality Assurance

INA supplies FEAD components for modern high-load engines and focuses on vibration damping and compact packaging in accessory drive systems. Use the confirmed fitment data for 1994-2002 Mazda applications to verify selection before installation.

This part fits 22 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2002Mazda6262.5LV6N/AINA Global Number 531 0646 200
2002MazdaMillenia2.5LV6N/AINA Global Number 531 0646 200
2001Mazda6262.5LV6N/AINA Global Number 531 0646 200
2001MazdaMillenia2.5LV6N/AINA Global Number 531 0646 200
2000Mazda6262.5LV6N/AINA Global Number 531 0646 200
2000MazdaMillenia2.5LV6N/AINA Global Number 531 0646 200
1999Mazda6262.5LV6N/AINA Global Number 531 0646 200
1999MazdaMillenia2.5LV6N/AINA Global Number 531 0646 200
1998Mazda6262.5LV6N/AINA Global Number 531 0646 200
1998MazdaMillenia2.5LV6N/AINA Global Number 531 0646 200
1997Mazda6262.5LV6N/AINA Global Number 531 0646 200
1997MazdaMillenia2.5LV6N/AINA Global Number 531 0646 200
1997MazdaMX-62.5LV6N/AINA Global Number 531 0646 200
1996Mazda6262.5LV6N/AINA Global Number 531 0646 200
1996MazdaMillenia2.5LV6N/AINA Global Number 531 0646 200
1996MazdaMX-62.5LV6N/AINA Global Number 531 0646 200
1995Mazda6262.5LV6N/AINA Global Number 531 0646 200
1995MazdaMillenia2.5LV6N/AINA Global Number 531 0646 200
1995MazdaMX-31.8LV6N/AINA Global Number 531 0646 200
1995MazdaMX-62.5LV6N/AINA Global Number 531 0646 200
1994MazdaMX-31.8LV6N/AINA Global Number 531 0646 200
1994MazdaMX-62.5LV6N/AINA Global Number 531 0646 200

* 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:

36229531064620089166K8051594XA

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