HomeBelts and Cooling > Accessory Drive Belt System ComponentsGates 38409 Accessory Drive Belt Tensioner Assembly
Part #: 38409

Gates 38409 Accessory Drive Belt Tensioner Assembly

DriveAlign Premium OE Automatic Belt Tensioner
⚙️ 8 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦DriveAlign Premium OE Automatic Belt Tensioner
🚗Fitment: Mazda, 6
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Gates DriveAlign Premium OE Automatic Belt Tensioner

The Gates DriveAlign Premium OE Automatic Belt Tensioner 38409 is engineered for precise belt tension control in Mazda 6 vehicles. Designed to maintain optimal tension on V-ribbed accessory drive belts, this tensioner assembly supports reliable engine accessory operation.

  • Thermoplastic construction for durability and lightweight performance
  • Single flanged pulley with 6 V-ribbed grooves
  • Outside diameter of 70 mm (2.76 in) and width of 25 mm (0.98 in)
  • Two mounting holes for secure installation
  • Bearing bore inside diameter of 17 mm (0.67 in)
  • OE exact comparison rating for direct replacement

Detailed Product Features and Specifications

This accessory drive belt tensioner assembly features a thermoplastic material that balances strength and weight, contributing to efficient engine operation. The pulley is flanged and includes six grooves designed specifically for V-ribbed belts, ensuring proper belt alignment and grip. With an outside diameter of 70 mm and a width of 25 mm, the tensioner fits precisely within the accessory drive system of Mazda 6 models. The bearing bore inside diameter measures 17 mm, supporting smooth pulley rotation and reducing wear. Two mounting holes provide a stable and secure fitment, matching original equipment specifications.

DriveAlign Premium OE Automatic Belt Tensioner Product Line

The DriveAlign Premium OE Automatic Belt Tensioner line by Gates focuses on delivering components that meet original equipment standards. This product line emphasizes exact fitment and reliable performance, making it suitable for professional repairs and maintenance. The 38409 tensioner assembly is part of this line, ensuring compatibility and durability for Mazda 6 accessory drive belt systems.

Applications and Common Issues Addressed

  • Maintains proper tension on V-ribbed accessory drive belts
  • Prevents belt slippage and premature wear
  • Reduces noise caused by loose or misaligned belts
  • Supports smooth operation of engine accessories like alternators and power steering pumps
  • Replaces worn or damaged belt tensioners in Mazda 6 vehicles

Installation Notes and Tips

When installing the Gates DriveAlign Premium OE Automatic Belt Tensioner 38409, ensure the mounting holes align precisely with the vehicle’s bracket. Use proper torque specifications to avoid over-tightening. Verify that the V-ribbed belt seats correctly within the six pulley grooves and that the flanged pulley prevents belt misalignment. Inspect the belt for wear during installation and replace if necessary to maintain system integrity.

Quality Assurance and Warranty

This Gates tensioner assembly is manufactured to meet OE standards, providing reliable performance and fitment for Mazda 6 models. The DriveAlign Premium OE Automatic Belt Tensioner 38409 undergoes rigorous quality control to ensure durability and function. Warranty details are provided by Gates and typically cover defects in materials and workmanship under normal use.

BrandGates
Part Number38409
PositionDriveAlign Premium OE Automatic Belt Tensioner
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 SurfaceV-Ribbed Grooved
ContentsTensioner Assy.
Groove Quantity6
MaterialThermoplastic
Mounting Hole Quantity2
Number of Grooves6
OE Comparison RatingOE Exact
Outside Diameter2.76
Outside Diameter70
Outside Diameter (in)2.76
Outside Diameter (mm)70
Pulley 1 FlangedYes
Pulley 1 FlangedYes
Pulley Quantity1
Width.98
Width25
Width (in).98
Width (mm)25

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2013Mazda62.5LL4GASN/ADriveAlign Premium OE Automatic Belt Tensioner
2012Mazda62.5LL4GASN/ADriveAlign Premium OE Automatic Belt Tensioner
2011Mazda62.5LL4GASN/ADriveAlign Premium OE Automatic Belt Tensioner
2010Mazda62.5LL4GASN/ADriveAlign Premium OE Automatic Belt Tensioner
2009Mazda62.5LL4GASN/ADriveAlign Premium OE Automatic Belt Tensioner
2008Mazda62.3LL4GASN/ADriveAlign Premium OE Automatic Belt Tensioner
2007Mazda62.3LL4GASN/ADriveAlign Premium OE Automatic Belt Tensioner
2006Mazda62.3LL4GASN/ADriveAlign 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:

38409494078966189661FN999212999212AL3P915980AL3P915980BL3P915980C

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