Vaico V45-0071 Accessory Drive Belt Idler Pulley - Lower

Accessory Drive Belt Idler Pulley for Porsche

Vaico V45-0071 is an accessory drive belt idler pulley built for select Porsche applications that use a lower belt system position. With a 70 mm outer diameter, 70 mm width, and 44 mm height, this pulley is sized for precise belt routing and stable accessory drive operation. It is a direct-fit service part for Porsche 911, Boxster, and Cayman models in the listed years.

Key Features

• Accessory drive belt idler pulley for the belt and cooling system
• 70 mm outer diameter and 70 mm width for the specified application
• 44 mm height for proper belt path alignment
• Lower position fitment on select Porsche 911, Boxster, and Cayman models
• Vaico part number V45-0071 for catalog lookup and ordering
• Cross-reference: Dayco 89173

Product Details

Vaico V45-0071 is engineered as an accessory drive belt idler pulley for Porsche 911, Porsche Boxster, and Porsche Cayman applications listed below. The pulley dimensions are 70 mm in outer diameter, 70 mm in width, and 44 mm in height, with a compact packaged size for parts handling and storage. This part number, V45-0071, is also referenced in aftermarket catalogs under equivalent numbers used for the same application.

Compatible With 1999-2008 Porsche 911, lower. Compatible With 2005-2008 Porsche Boxster, lower. Compatible With 2006-2008 Porsche Cayman, lower.

Common Replacement Reasons

• Noise from a worn or rough idler pulley bearing
• Belt tracking issues caused by pulley wear or misalignment
• Accessory drive belt vibration or uneven operation
• Visible pulley damage, wobble, or surface wear
• Service replacement during belt system maintenance

Installation Notes

Verify pulley dimensions and lower-position fitment before installation. Inspect the accessory drive belt, tensioner, and adjacent pulleys for wear at the same time, since belt system components often age together. Confirm the vehicle application by year, model, and position before ordering V45-0071.

Quality Assurance

Vaico supplies OE-style replacement parts for European vehicle applications, and this pulley is cataloged for the specified Porsche fitments. Use the part number V45-0071 to confirm application details against your vehicle records and parts catalog.