OE Quality
60-Day Returns

Continental K49280A Serpentine Belt Drive Component Kit - Accessory Drive
Reliable Serpentine Belt Drive Component Kit for Select GM and Isuzu Models
The Continental K49280A serpentine belt drive component kit is designed to provide durable and precise performance for your vehicle's accessory drive system. Engineered to meet the specifications of Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models, this kit ensures proper tension and smooth operation of your engine's belt system.
- Includes one drive belt, one idler pulley, and one tensioner
- Drive belt features 6 grooves with a top width of 0.83 inches and a length of 91.50 inches
- Idler pulley constructed from steel with a smooth surface, 2.99 inches outside diameter and 1.13 inches width
- Tensioner included to maintain optimal belt tension and reduce wear
- Compatible with Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models including 9-7x, Ascender, Bravada, Envoy, Envoy XL, Rainier, and Trailblazer
Detailed Product Description
The Continental K49280A kit combines a high-quality drive belt, a steel idler pulley, and a tensioner to maintain the correct tension in the serpentine belt system. The drive belt's six grooves and 0.83-inch top width provide reliable grip and power transmission to engine accessories. The steel idler pulley with a smooth surface reduces friction and wear, contributing to longer component life. The included tensioner ensures consistent belt tension, preventing slippage and noise. This kit is engineered specifically for select GM and Isuzu vehicles, ensuring compatibility and performance.
Common Applications and Problem Solving
- Replaces worn or cracked serpentine belts causing squealing or slipping
- Addresses belt tension issues that lead to accessory malfunction
- Resolves pulley wear or damage affecting belt alignment
- Prevents premature belt failure due to improper tension or pulley surface wear
- Improves overall accessory drive system reliability in Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab vehicles
Installation Notes and Tips
Ensure the engine is cool before beginning installation. Remove the old belt and components carefully, noting the belt routing. Verify pulley alignment and tensioner operation before installing the new belt. Use appropriate tools to avoid damage to the tensioner or pulley during installation. After installation, double-check belt tension and alignment to prevent premature wear.
Quality Assurance and Warranty
Continental manufactures the K49280A kit to meet or exceed OEM specifications for durability and performance. The steel idler pulley and tensioner components are designed for long service life under normal operating conditions. While specific warranty details are not provided here, Continental products typically come with a limited warranty against defects in materials and workmanship.
| Brand | Continental |
| Part Number | K49280A |
| Component Type | Drive belt |
| Component Type | Idler pulley |
| Component Type | Tensioner |
| Belt Quantity | 1 |
| Tensioner Included | 1 |
| Pulley Quantity | 1 |
| Pulley 1 Outside Diameter | 2.99 |
| Pulley 1 Width | 1.13 |
| Pulley 1 Material | Steel |
| Belt Groove Quantity | 6 |
| Belt Top Width | 0.83 |
| Pulley Surface Type | Smooth |
| Belt Length | 91.50 |
This part fits 34 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2009 | Chevrolet | Trailblazer | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2009 | GMC | Envoy | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2009 | Saab | 9-7x | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2008 | Chevrolet | Trailblazer | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2008 | GMC | Envoy | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2008 | Isuzu | Ascender | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2008 | Saab | 9-7x | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2007 | Chevrolet | Trailblazer | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2007 | GMC | Envoy | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2007 | Isuzu | Ascender | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2007 | Saab | 9-7x | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2006 | Buick | Rainier | 4.2L | L6 | Accessory Drive | W/ 150 Amp Alt.; Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2006 | Chevrolet | Trailblazer | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2006 | GMC | Envoy | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2006 | Isuzu | Ascender | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2006 | Saab | 9-7x | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2005 | Buick | Rainier | 4.2L | L6 | Accessory Drive | W/ 150 Amp Alt.; Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2005 | Chevrolet | Trailblazer | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2005 | GMC | Envoy | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2005 | Isuzu | Ascender | 4.2L | L6 | Accessory Drive | W/ 150 Amp Alt.; Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2005 | Saab | 9-7x | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2004 | Buick | Rainier | 4.2L | L6 | Accessory Drive | W/ 150 Amp Alt.; Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2004 | Chevrolet | Trailblazer | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2004 | GMC | Envoy | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2004 | Isuzu | Ascender | 4.2L | L6 | Accessory Drive | W/ 150 Amp Alt.; Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2004 | Oldsmobile | Bravada | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2003 | Chevrolet | Trailblazer | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2003 | GMC | Envoy | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2003 | Isuzu | Ascender | 4.2L | L6 | Accessory Drive | W/ 150 Amp Alt.; Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2003 | Oldsmobile | Bravada | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2002 | Chevrolet | Trailblazer | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2002 | GMC | Envoy | 4.2L | L6 | Accessory Drive | W/ 150 Amp Alt.; Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2002 | GMC | Envoy XL | 4.2L | L6 | Accessory Drive | W/ 150 Amp Alt.; Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
| 2002 | Oldsmobile | Bravada | 4.2L | L6 | Accessory Drive | Kit Includes Poly-V, Tensioner Assembly and Idler Pulleys |
* 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.