HomeBelts and Cooling > Accessory Drive Belt System ComponentsGates 38419 Accessory Drive Belt Tensioner Assembly - Air Conditioning
Part #: 38419

Gates 38419 Accessory Drive Belt Tensioner Assembly - Air Conditioning

DriveAlign Premium OE Automatic Belt Tensioner, Air Conditioning
⚙️ 22 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦DriveAlign Premium OE Automatic Belt Tensioner, Air Conditioning
🚗Fitment: Cadillac, STS, CTS, and SRX
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Overview of Gates DriveAlign Premium OE Automatic Belt Tensioner

The Gates DriveAlign Premium OE Automatic Belt Tensioner (part number 38419) is engineered to maintain optimal tension on the accessory drive belt system. Designed specifically for Cadillac CTS, SRX, and STS models, this tensioner assembly ensures consistent belt performance and longevity.

  • Constructed from durable steel for strength and reliability
  • Compatible with V-ribbed belt types used in select Cadillac vehicles
  • Single pulley design with a smooth backside contact surface
  • Mounting hole quantity: 1 for straightforward installation
  • Precision dimensions: 2.76 inches (70 mm) outside diameter, 1.22 inches (31 mm) width, and 0.67 inches (17 mm) bearing bore inside diameter

Detailed Product Features and Specifications

This accessory drive belt tensioner assembly features a steel construction that provides durability under continuous engine operation. The pulley is not flanged, which suits the V-ribbed belt system found in Cadillac CTS, SRX, and STS models. The tensioner’s smooth backside contact surface reduces belt wear and noise. With a single mounting hole, installation is simplified without compromising secure fitment. The precise dimensions, including a 2.76-inch outside diameter and 1.22-inch width, align with original equipment specifications, ensuring an OE exact replacement.

About the DriveAlign Premium OE Automatic Belt Tensioner Line

The DriveAlign Premium OE Automatic Belt Tensioner product line by Gates focuses on delivering tensioners that meet original equipment standards. This line emphasizes exact fitment and reliable performance, making it suitable for professional repairs and maintenance. Part number 38419 is part of this line, providing Cadillac owners with a tensioner assembly designed to match factory specifications and maintain proper belt tension automatically.

Applications and Common Issues Addressed

  • Maintains proper tension on the accessory drive belt to prevent slippage
  • Reduces belt noise caused by improper tension or misalignment
  • Prevents premature belt wear and extends belt life
  • Eliminates issues related to belt squeal during engine start-up or acceleration
  • Supports smooth operation of engine accessories such as alternator and power steering pump

Installation Notes and Tips

When installing the Gates DriveAlign Premium OE Automatic Belt Tensioner 38419, ensure the mounting surface is clean and free of debris. Use the single mounting hole to secure the tensioner firmly in place. Verify that the V-ribbed belt is properly seated on the pulley with the smooth backside contact surface aligned correctly. It is recommended to inspect the belt for wear and replace if necessary during installation. Follow vehicle-specific torque specifications to avoid over-tightening.

Quality Assurance and Warranty

Gates provides this tensioner assembly with an OE comparison rating, confirming it meets original equipment standards for fit and function. Manufactured from high-quality steel and precision components, part number 38419 is built for durability and consistent performance. Warranty details are available through Gates and typically cover defects in material and workmanship under normal use conditions.

BrandGates
Part Number38419
PositionDriveAlign Premium OE Automatic Belt Tensioner, Air Conditioning
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 Quantity1
OE Comparison RatingOE Exact
Outside Diameter2.76
Outside Diameter70
Outside Diameter (in)2.76
Outside Diameter (mm)70
Pulley 1 FlangedNo
Pulley 1 FlangedNo
Pulley Quantity1
Width1.22
Width31
Width (in)1.22
Width (mm)31

This part fits 22 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2011CadillacSTS3.6LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2010CadillacSTS3.6LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2009CadillacCTS3.6LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2009CadillacSRX3.6LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2009CadillacSTS3.6LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2008CadillacCTS3.6LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2008CadillacSRX3.6LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2008CadillacSTS3.6LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2007CadillacCTS2.8LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2007CadillacCTS3.6LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2007CadillacSRX3.6LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2007CadillacSTS3.6LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2006CadillacCTS2.8LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2006CadillacCTS3.6LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2006CadillacSRX3.6LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2006CadillacSTS3.6LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2005CadillacCTS2.8LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2005CadillacCTS3.6LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2005CadillacSRX3.6LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2005CadillacSTS3.6LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2004CadillacCTS3.6LV6GASAir ConditioningDriveAlign Premium OE Automatic Belt Tensioner
2004CadillacSRX3.6LV6GASAir ConditioningDriveAlign 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:

12577655305386384194939089386999690999690A

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