OE Quality
60-Day Returns

Dorman 419-310 Accessory Drive Belt Tensioner Assembly
Reliable Accessory Drive Belt Tensioner for Honda Vehicles
The Dorman 419-310 accessory drive belt tensioner assembly is engineered to maintain optimal serpentine belt tension for Honda Accord, Accord Crosstour, Odyssey, and Pilot models. Designed with durable aluminum and steel materials, this tensioner ensures consistent performance and longevity in your vehicle's accessory drive system.
Key Features of the Dorman 419-310 Belt Tensioner
- Constructed with high-quality aluminum and steel for strength and durability
- Compatible with serpentine belt systems on select Honda models
- Includes two steel pulleys with 40 mm diameter bearings for smooth operation
- Black and silver color components for corrosion resistance
- Maximum adjustment range of 15 mm to accommodate belt tension variations
- Two mounting holes with 8 mm diameter for secure installation
- Designed for both clockwise and counterclockwise tensioner rotation
Detailed Product Description
The Dorman 419-310 accessory drive belt tensioner assembly is specifically designed for Honda Accord, Accord Crosstour, Odyssey, and Pilot vehicles. It features a robust aluminum body combined with steel pulleys and components to withstand the demands of the engine environment. The tensioner measures 325 mm in length with an outside pulley diameter of 80 mm and a width of 28 mm, ensuring precise fitment and reliable belt tension. The assembly includes two pulleys, each equipped with two bearings, providing smooth and consistent belt tracking. Its serpentine belt compatibility and a maximum adjustment range of 15 mm allow it to maintain proper belt tension, reducing slippage and wear.
Common Applications and Issues Addressed
- Maintains proper tension on serpentine belts to prevent slipping
- Reduces belt noise caused by improper tension
- Prevents premature belt wear and extends belt life
- Addresses issues related to belt misalignment or tensioner failure
- Ensures reliable operation of engine accessories such as alternator and power steering pump
Installation Notes and Tips
When installing the Dorman 419-310 tensioner, ensure the mounting holes align correctly with the vehicle’s bracket using the two 8 mm diameter holes. Verify the tensioner rotation direction matches the engine’s serpentine belt routing, as this model supports both clockwise and counterclockwise rotation. Inspect the serpentine belt for wear and replace if necessary during installation. Proper torque specifications should be followed to secure the tensioner assembly without over-tightening.
Quality Assurance and Warranty
Dorman manufactures this accessory drive belt tensioner assembly to meet or exceed OEM standards for fit, form, and function. The use of aluminum and steel materials contributes to its durability and resistance to corrosion. While specific warranty details are not provided here, Dorman products typically come with a limited warranty covering defects in material and workmanship. Refer to Dorman’s official documentation for exact warranty terms.
| Brand | Dorman |
| Part Number | 419-310 |
| Material | Aluminum |
| Material | Steel |
| Length | 325 |
| Color | Black |
| Color | Silver |
| Inside Diameter | 17 |
| Width | 28 |
| Outside Diameter | 80 |
| Mounting Hole Quantity | 2 |
| Belt Type | Serpentine |
| Pulley Quantity | 2 |
| Maximum Adjustment Range | 15 |
| Mounting Hole Diameter | 8 |
| Groove Quantity | 0 |
| Number of Pulley Bearings | 2 |
| Package Contents | 1 automatic belt tensioner |
| Pulley Bearing Diameter (mm) | 40 mm |
| Pulley Material | Steel |
| Tensioner Rotation | Cc (counter clockwise) / cw (clockwise) |
This part fits 17 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2011 | Honda | Pilot | 3.5L | V6 | N/A | ||
| 2010 | Honda | Accord | 3.5L | V6 | N/A | ||
| 2010 | Honda | Accord Crosstour | 3.5L | V6 | N/A | ||
| 2010 | Honda | Odyssey | 3.5L | V6 | N/A | ||
| 2010 | Honda | Pilot | 3.5L | V6 | N/A | ||
| 2009 | Honda | Accord | 3.5L | V6 | N/A | ||
| 2009 | Honda | Odyssey | 3.5L | V6 | N/A | ||
| 2009 | Honda | Pilot | 3.5L | V6 | N/A | ||
| 2008 | Honda | Accord | 3.5L | V6 | N/A | ||
| 2008 | Honda | Odyssey | 3.5L | V6 | N/A | ||
| 2007 | Honda | Odyssey | 3.5L | V6 | N/A | ||
| 2006 | Honda | Odyssey | EX-L | 3.5L | V6 | N/A | |
| 2006 | Honda | Odyssey | 3.5L | V6 | N/A | ||
| 2006 | Honda | Odyssey | Touring | 3.5L | V6 | N/A | |
| 2005 | Honda | Odyssey | EX-L | 3.5L | V6 | N/A | |
| 2005 | Honda | Odyssey | 3.5L | V6 | N/A | ||
| 2005 | Honda | Odyssey | Touring | 3.5L | V6 | N/A |
* 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.