Continental 49410 Accessory Drive Belt Tensioner Assembly - Accessory Drive

Accessory Drive Belt Tensioner for OE Fit

Continental Multi-V 49410 is an accessory drive belt tensioner assembly built for direct-fit replacement on select Dodge Sprinter and Mercedes-Benz applications. It uses a round torsion spring to help damp belt vibration, maintain steady tension, and keep the belt aligned as it wears.

With a smooth, non-flanged thermoplastic pulley and OE-style dimensions, this tensioner is made for accessory drive systems that require consistent belt control. Continental 49410 is a practical choice for service work on the Dodge Sprinter 2500, Dodge Sprinter 3500, and Mercedes-Benz E320.

Key Features

• Accessory drive belt tensioner assembly for Multi-V belt systems
• Round torsion-spring design helps maintain constant belt tension
• Helps reduce vibration and support belt alignment
• One smooth, non-flanged pulley
• Thermoplastic pulley construction
• OE-style fit and performance focus
• Part number: 49410

Product Details

Continental’s Multi-V line is positioned for accessory drive service where stable belt tension matters. This tensioner assembly is engineered to meet or exceed OEM fit and performance expectations, with Accu-Drive technology that uses a torsion spring to compensate for belt wear and help maintain alignment over time. The pulley measures 2.76 inches outside diameter, 1.02 inches wide, and 0.670 inches bore diameter, with a smooth surface and non-flanged design.

Compatible vehicle applications include Fits 2003-2006 Dodge Sprinter 2500, Accessory Drive; Fits 2003-2006 Dodge Sprinter 3500, Accessory Drive; Fits 2005-2006 Mercedes-Benz E320, Accessory Drive; and Fits 2004-2005 Mercedes-Benz Sprinter, Accessory Drive. This part cross-references Dayco 89451 and Gates 38415 for the same application. Continental 49410 is also listed against OE and aftermarket numbers including 5080243AA and 68001798AA.

Common Problems This Part Can Address

• Belt squeal caused by inconsistent tension
• Accessory belt vibration during engine operation
• Misalignment at the accessory drive belt system
• Wear-related loss of belt tension
• Noise from a worn tensioner pulley or spring assembly

Installation Notes

Verify pulley style, belt routing, and accessory drive configuration before installation. Match the smooth pulley design and OE dimensions to the original unit on the vehicle. After installation, inspect belt tracking and confirm proper tension across the full accessory drive path.

Quality Assurance

Continental states that this Multi-V tensioner assembly is designed to meet or exceed OEM fit and performance requirements. The Accu-Drive torsion-spring design is intended to support consistent tension control and alignment in normal accessory drive operation.