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Gates 39069 Accessory Drive Belt Tensioner Assembly - Serpentine
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.
| Brand | Gates |
| Part Number | 39069 |
| Position | DriveAlign Premium OE Automatic Belt Tensioner, Serpentine |
| Bearing Bore Inside Diameter | .67 |
| Bearing Bore Inside Diameter | 17 |
| Bearing Bore Inside Diameter 1 (in) | .67 |
| Bearing Bore Inside Diameter 1 (mm) | 17 |
| Belt Type | V-Ribbed |
| Belt Type | V-Ribbed |
| Contact Surface | Smooth/Backside |
| Contents | Tensioner Assy. |
| Material | Steel |
| Mounting Hole Quantity | 3 |
| OE Comparison Rating | OE Exact |
| Outside Diameter | 3.15 |
| Outside Diameter | 80 |
| Outside Diameter (in) | 3.15 |
| Outside Diameter (mm) | 80 |
| Pulley 1 Flanged | No |
| Pulley 1 Flanged | No |
| Pulley Quantity | 1 |
| Width | 1.22 |
| Width | 31 |
| Width (in) | 1.22 |
| Width (mm) | 31 |
This part fits 18 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2010 | INFINITI | M45 | 4.5L | V8 | GAS | Serpentine | DriveAlign Premium OE Automatic Belt Tensioner |
| 2009 | INFINITI | M45 | 4.5L | V8 | GAS | Serpentine | DriveAlign Premium OE Automatic Belt Tensioner |
| 2008 | INFINITI | FX45 | 4.5L | V8 | GAS | Serpentine | DriveAlign Premium OE Automatic Belt Tensioner |
| 2008 | INFINITI | M45 | 4.5L | V8 | GAS | Serpentine | DriveAlign Premium OE Automatic Belt Tensioner |
| 2007 | INFINITI | FX45 | 4.5L | V8 | GAS | Serpentine | DriveAlign Premium OE Automatic Belt Tensioner |
| 2007 | INFINITI | M45 | 4.5L | V8 | GAS | Serpentine | DriveAlign Premium OE Automatic Belt Tensioner |
| 2006 | INFINITI | FX45 | 4.5L | V8 | GAS | Serpentine | DriveAlign Premium OE Automatic Belt Tensioner |
| 2006 | INFINITI | M45 | 4.5L | V8 | GAS | Serpentine | DriveAlign Premium OE Automatic Belt Tensioner |
| 2006 | INFINITI | Q45 | 4.5L | V8 | GAS | Serpentine | DriveAlign Premium OE Automatic Belt Tensioner |
| 2005 | INFINITI | FX45 | 4.5L | V8 | GAS | Serpentine | DriveAlign Premium OE Automatic Belt Tensioner |
| 2005 | INFINITI | Q45 | 4.5L | V8 | GAS | Serpentine | DriveAlign Premium OE Automatic Belt Tensioner |
| 2004 | INFINITI | FX45 | 4.5L | V8 | GAS | Serpentine | DriveAlign Premium OE Automatic Belt Tensioner |
| 2004 | INFINITI | M45 | 4.5L | V8 | GAS | Serpentine | DriveAlign Premium OE Automatic Belt Tensioner |
| 2004 | INFINITI | Q45 | 4.5L | V8 | GAS | Serpentine | DriveAlign Premium OE Automatic Belt Tensioner |
| 2003 | INFINITI | FX45 | 4.5L | V8 | GAS | Serpentine | DriveAlign Premium OE Automatic Belt Tensioner |
| 2003 | INFINITI | M45 | 4.5L | V8 | GAS | Serpentine | DriveAlign Premium OE Automatic Belt Tensioner |
| 2003 | INFINITI | Q45 | 4.5L | V8 | GAS | Serpentine | DriveAlign Premium OE Automatic Belt Tensioner |
| 2002 | INFINITI | Q45 | 4.5L | V8 | GAS | Serpentine | DriveAlign 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.