URO 6019932710 Belt Tensioner Spring

Mercedes-Benz Belt Tensioner Spring

This URO belt tensioner spring is a direct-fit replacement for select Mercedes-Benz diesel applications. It is built to maintain proper belt tension across engine speeds, helping support stable accessory drive operation in demanding underhood conditions.

• Fits select Mercedes-Benz 300D, 300SD, 350SD, 350SDL, 300SDL, 300TD, and S350 diesel models
• Coil spring rate matches OE specifications for consistent belt tension
• Manufactured to OE dimensions for proper clearances
• High-strength alloy steel construction resists engine heat and belt vibration
• URO part number 6019932710 for application-specific ordering

OE-Style Replacement Details

Built for the accessory drive system, this belt tensioner spring helps maintain the correct tension on the serpentine or drive belt as engine load and speed change. The OE-style dimensions and spring rate support proper alignment and clearance in Mercedes-Benz 300D, 300SD, 350SDL, and related diesel models. This part cross-references URO-010985 for the same application.

Vehicle Fitment

• Fits 1994-1995 Mercedes-Benz S350, N/A
• Fits 1990-1993 Mercedes-Benz 300D, N/A
• Fits 1987 Mercedes-Benz 300D, N/A
• Fits 1992-1993 Mercedes-Benz 300SD, N/A
• Fits 1991 Mercedes-Benz 350SD, N/A
• Fits 1990-1991 Mercedes-Benz 350SDL, N/A
• Fits 1986-1987 Mercedes-Benz 300SDL, N/A
• Fits 1987 Mercedes-Benz 300TD, N/A

Common Replacement Reasons

• Weak or inconsistent belt tension
• Noise from a worn tensioner spring
• Belt vibration under engine load
• Incorrect belt tracking caused by spring fatigue
• Clearance issues from a part that does not match OE dimensions

Installation Notes

Verify the existing tensioner spring part number and compare the OE dimensions before installation. Inspect the belt, pulleys, and tensioner assembly for wear at the same time, since related components can affect belt tension and service life. Confirm fitment against the vehicle’s model year and diesel engine configuration before ordering.

Quality Assurance

URO manufactures this spring from high-strength alloy steel and to OE dimensions for proper fit and function. The part is backed by a 24-month unlimited mileage warranty.