HomeBelts and Cooling > Accessory Drive Belt System ComponentsGates 39069 Accessory Drive Belt Tensioner Assembly - Serpentine
Part #: 39069

Gates 39069 Accessory Drive Belt Tensioner Assembly - Serpentine

DriveAlign Premium OE Automatic Belt Tensioner, Serpentine
⚙️ 18 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦DriveAlign Premium OE Automatic Belt Tensioner, Serpentine
🚗Fitment: INFINITI, M45, FX45, and Q45
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Overview of Gates DriveAlign Premium OE Automatic Belt Tensioner

The Gates DriveAlign Premium OE Automatic Belt Tensioner 39069 is engineered for precise belt tension control in select Infiniti vehicles. Designed to maintain optimal tension on V-ribbed accessory drive belts, this tensioner assembly supports reliable engine accessory operation for Infiniti FX45, M45, and Q45 models.

  • Constructed from durable steel for long-lasting performance
  • Compatible with V-ribbed belt systems
  • Single pulley design with a smooth backside contact surface
  • Outside diameter of 3.15 inches (80 mm) and width of 1.22 inches (31 mm)
  • Three mounting holes for secure installation
  • OE exact fit and function for Infiniti FX45, M45, and Q45

Detailed Product Description

This Gates DriveAlign Premium OE Automatic Belt Tensioner (part number 39069) is specifically designed to meet original equipment specifications for Infiniti FX45, M45, and Q45 models. The tensioner assembly features a steel construction that ensures durability under engine operating conditions. It includes a single pulley without flanges, measuring 3.15 inches (80 mm) in outside diameter and 1.22 inches (31 mm) in width, optimized for V-ribbed belt compatibility. The smooth backside contact surface reduces belt wear and noise, while the three mounting holes provide a secure and stable fitment.

The DriveAlign Premium OE Automatic Belt Tensioner product line focuses on delivering precise tension control and alignment to extend belt life and maintain accessory drive system efficiency. This line is engineered to match original equipment performance, making it suitable for professional repairs and maintenance on Infiniti vehicles.

Common Applications and Issues Addressed

  • Maintains proper tension on V-ribbed accessory belts
  • Prevents belt slippage and squealing noises
  • Reduces premature belt wear and extends service intervals
  • Eliminates misalignment issues in accessory drive systems
  • Supports smooth operation of alternator, power steering, and A/C compressor

Installation Notes and Tips

  • Ensure compatibility with Infiniti FX45, M45, and Q45 models before installation
  • Inspect belt condition and replace if worn or damaged during tensioner replacement
  • Use proper torque specifications for mounting bolts to avoid damage
  • Verify belt alignment and tension after installation for optimal performance

Quality Assurance and Warranty

The Gates DriveAlign Premium OE Automatic Belt Tensioner 39069 is manufactured to meet stringent quality standards and OE specifications. This part is rated as an OE exact replacement, ensuring reliable fit and function. Gates provides a limited warranty covering defects in material and workmanship, supporting confidence in product durability and performance.

BrandGates
Part Number39069
PositionDriveAlign Premium OE Automatic Belt Tensioner, Serpentine
Bearing Bore Inside Diameter.67
Bearing Bore Inside Diameter17
Bearing Bore Inside Diameter 1 (in).67
Bearing Bore Inside Diameter 1 (mm)17
Belt TypeV-Ribbed
Belt TypeV-Ribbed
Contact SurfaceSmooth/Backside
ContentsTensioner Assy.
MaterialSteel
Mounting Hole Quantity3
OE Comparison RatingOE Exact
Outside Diameter3.15
Outside Diameter80
Outside Diameter (in)3.15
Outside Diameter (mm)80
Pulley 1 FlangedNo
Pulley 1 FlangedNo
Pulley Quantity1
Width1.22
Width31
Width (in)1.22
Width (mm)31

This part fits 18 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2010INFINITIM454.5LV8GASSerpentineDriveAlign Premium OE Automatic Belt Tensioner
2009INFINITIM454.5LV8GASSerpentineDriveAlign Premium OE Automatic Belt Tensioner
2008INFINITIFX454.5LV8GASSerpentineDriveAlign Premium OE Automatic Belt Tensioner
2008INFINITIM454.5LV8GASSerpentineDriveAlign Premium OE Automatic Belt Tensioner
2007INFINITIFX454.5LV8GASSerpentineDriveAlign Premium OE Automatic Belt Tensioner
2007INFINITIM454.5LV8GASSerpentineDriveAlign Premium OE Automatic Belt Tensioner
2006INFINITIFX454.5LV8GASSerpentineDriveAlign Premium OE Automatic Belt Tensioner
2006INFINITIM454.5LV8GASSerpentineDriveAlign Premium OE Automatic Belt Tensioner
2006INFINITIQ454.5LV8GASSerpentineDriveAlign Premium OE Automatic Belt Tensioner
2005INFINITIFX454.5LV8GASSerpentineDriveAlign Premium OE Automatic Belt Tensioner
2005INFINITIQ454.5LV8GASSerpentineDriveAlign Premium OE Automatic Belt Tensioner
2004INFINITIFX454.5LV8GASSerpentineDriveAlign Premium OE Automatic Belt Tensioner
2004INFINITIM454.5LV8GASSerpentineDriveAlign Premium OE Automatic Belt Tensioner
2004INFINITIQ454.5LV8GASSerpentineDriveAlign Premium OE Automatic Belt Tensioner
2003INFINITIFX454.5LV8GASSerpentineDriveAlign Premium OE Automatic Belt Tensioner
2003INFINITIM454.5LV8GASSerpentineDriveAlign Premium OE Automatic Belt Tensioner
2003INFINITIQ454.5LV8GASSerpentineDriveAlign Premium OE Automatic Belt Tensioner
2002INFINITIQ454.5LV8GASSerpentineDriveAlign Premium OE Automatic Belt Tensioner

* 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:

11955AR00011955AR00A11955AR00B11955AR00C3906949426999259999259A

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