Continental 49278 Accessory Drive Belt Tensioner Assembly - Accessory Drive

Reliable Accessory Drive Belt Tensioner for Chevrolet and GMC Vehicles

The Continental Multi-V Accessory Drive Belt Tensioner Assembly (Part Number 49278) is engineered to maintain optimal tension on the accessory drive belt system. Designed specifically for select Chevrolet, GMC, and Hummer models, this tensioner ensures consistent belt performance and durability under demanding conditions.

• Flanged steel pulley with a 2.76-inch outside diameter
• Single grooved pulley with 6 grooves for precise belt alignment
• Pulley bore diameter of 0.670 inches for secure fitment
• Pulley width of 0.95 inches to accommodate accessory drive belts
• Grooved pulley surface type for enhanced belt grip and reduced slippage

Detailed Features of the Continental Multi-V Tensioner Assembly

This accessory drive belt tensioner assembly features a robust steel pulley constructed with a flanged design to provide added stability and prevent belt misalignment. The pulley’s 6-groove configuration matches the belt profile used in heavy-duty applications, ensuring smooth power transmission to engine accessories. With a bore diameter of 0.670 inches and a width of 0.95 inches, the pulley is engineered for precise fitment and reliable operation within the accessory drive belt system.

The Multi-V product line by Continental focuses on delivering components that meet stringent OEM specifications for accessory drive systems. This tensioner assembly is part of that line, offering consistent tension control and durability for vehicles requiring high-performance belt management.

Compatible Vehicles and Applications

• Chevrolet Express 2500 and Express 3500
• GMC Savana 2500 and Savana 3500
• Chevrolet Silverado 2500 HD, 2500 HD Classic, 3500, 3500 Classic, and 3500 HD
• GMC Sierra 2500 HD, 2500 HD Classic, 3500, 3500 Classic, and 3500 HD
• Hummer H1

Common Issues Addressed by This Tensioner Assembly

• Accessory drive belt slippage causing noise or reduced accessory performance
• Improper belt tension leading to premature belt wear or failure
• Misalignment of the belt resulting in uneven wear or damage
• Loss of tensioner pulley integrity affecting belt routing
• Vibration or noise from worn or damaged tensioner components

Installation Notes and Tips

Ensure the vehicle is off and the engine is cool before beginning installation. Verify compatibility with your specific Chevrolet, GMC, or Hummer model using the part number 49278. Properly align the tensioner pulley grooves with the accessory drive belt to prevent premature wear. Use appropriate tools to relieve tension on the belt system safely during removal and installation. Inspect the belt for wear and replace if necessary to maintain optimal system performance.

Quality Assurance and Warranty Information

Continental manufactures the Multi-V Accessory Drive Belt Tensioner Assembly to meet or exceed OEM standards for durability and performance. The steel pulley construction and precise engineering contribute to long service life. While specific warranty details are not provided here, Continental products typically come with manufacturer-backed quality assurance to support reliable operation in compatible Chevrolet, GMC, and Hummer vehicles.