OE Quality
60-Day Returns

Gates 39331 Accessory Drive Belt Tensioner Assembly
Overview of Gates DriveAlign Premium OE Automatic Belt Tensioner
The Gates DriveAlign Premium OE Automatic Belt Tensioner 39331 is engineered for precise belt tension control in Acura and Honda vehicles. Designed to maintain optimal tension on V-ribbed accessory drive belts, this tensioner assembly supports reliable engine performance and accessory operation.
- Constructed from durable steel for long-lasting strength
- Single smooth backside pulley with a 3-inch (76.2 mm) outside diameter
- Hydraulic damper integrated for consistent tension and reduced vibration
- Two mounting holes for secure installation
- Compatible with V-ribbed belt systems
- OE exact fit and performance for Acura and Honda models
Detailed Product Description and Specifications
This accessory drive belt tensioner assembly features a steel construction that ensures durability under engine bay conditions. The pulley has a smooth contact surface without flanges, measuring 3 inches (76.2 mm) in outside diameter and 1.22 inches (31 mm) in width, designed specifically for V-ribbed belts. The bearing bore inside diameter is 0.67 inches (17 mm), supporting smooth rotation and reliable belt tracking. The assembly includes a hydraulic damper to absorb shocks and maintain consistent belt tension, which helps prevent belt slippage and premature wear.
About the DriveAlign Premium OE Automatic Belt Tensioner Line
The DriveAlign Premium OE Automatic Belt Tensioner product line by Gates focuses on delivering original equipment (OE) exact replacements. This ensures that the tensioner matches the fit, form, and function of the factory-installed part. The line is designed to meet or exceed OE specifications, providing dependable performance for Acura and Honda accessory drive belt systems.
Compatible Vehicles and Common Applications
This tensioner assembly is compatible with various Acura and Honda models, including the Accord, Crosstour, MDX, RDX, RLX, and TLX. It is specifically designed for vehicles equipped with V-ribbed accessory drive belts requiring precise tension control.
- Maintains proper belt tension to prevent slipping and noise
- Reduces belt wear and extends belt life
- Minimizes vibration and shock to accessory components
- Prevents engine accessory malfunctions due to belt failure
- Ensures consistent performance of alternator, power steering, and A/C compressor
Installation Notes and Tips
When installing the Gates DriveAlign Premium OE Automatic Belt Tensioner 39331, ensure the mounting surface is clean and free of debris. Use the two mounting holes to secure the tensioner firmly in place. Verify that the V-ribbed belt is properly seated on the pulley and aligned with other accessory pulleys. It is recommended to inspect the belt for wear and replace it if necessary during installation. Follow vehicle-specific torque specifications for mounting bolts to avoid damage.
Quality Assurance and Warranty Information
The Gates DriveAlign Premium OE Automatic Belt Tensioner 39331 is manufactured to meet OE standards, providing reliable fit and function. The product includes a hydraulic damper for enhanced durability and consistent performance. Gates offers a limited warranty on this tensioner assembly, covering defects in materials and workmanship under normal use conditions. Refer to the product documentation for specific warranty terms.
| Brand | Gates |
|---|---|
| Part Number | 39331 |
| Position | DriveAlign Premium OE Automatic Belt Tensioner |
| 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., Hydraulic Damper |
| Material | Steel |
| Mounting Hole Quantity | 2 |
| OE Comparison Rating | OE Exact |
| Outside Diameter | 3 |
| Outside Diameter | 76 |
| Outside Diameter (in) | 3 |
| Outside Diameter (mm) | 76.2 |
| 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 27 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2020 | Acura | RLX | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2020 | Acura | TLX | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2019 | Acura | RLX | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2019 | Acura | TLX | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2018 | Acura | RDX | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2018 | Acura | RLX | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2018 | Acura | TLX | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2017 | Acura | RDX | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2017 | Acura | RLX | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2017 | Acura | TLX | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2017 | Honda | Accord | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2016 | Acura | MDX | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2016 | Acura | RDX | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2016 | Acura | RLX | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2016 | Acura | TLX | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2016 | Honda | Accord | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2015 | Acura | MDX | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2015 | Acura | RLX | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2015 | Acura | TLX | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2015 | Honda | Accord | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2015 | Honda | Crosstour | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2014 | Acura | MDX | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2014 | Acura | RLX | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2014 | Honda | Accord | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2014 | Honda | Crosstour | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2013 | Honda | Accord | 3.5L | V6 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2013 | Honda | Crosstour | 3.5L | V6 | GAS | N/A | 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.