2005 BMW 525i Idler Pulleys

Dayco idler/tensioner pulleys are built with smoother surfaces and tighter dimensional tolerances, which translates to less vibration and longer belt life. In addition to stamped, forged steel and powdered metal pulleys, Dayco also designs ultra-strong plastic pulleys with specially formulated glass-filled polymers that resist wear & tear. Premium lubricated ball bearings and double high temperature seals ensure peak bearing performance, the most critical element of a pulley’s service life.

Product Features:

• Designed for the majority of automotive vehicle applications on the road today.
• High-quality materials help resist wear and improve belt life
• Features premium lubricated bearings to extend service life
• Meets or exceeds OE quality

This Litens pulley is manufactured by the original equipment part supplier to ensure proper fit and performance. This pulley is produced for BMW serpentine belt routing applications and conforms to original equipment material, tolerances, and specifications. As with the original equipment part, this replacement part is made in Germany using the O.E. specified design and meets all performance and durability requirements. Proper installation is ensured by the inclusion of a locator pin molded onto the engine side of the idler. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket._

Product Features:

• Manufactured by the original equipment part suppliers in the world to ensure proper form, fit, and performance
• Heavy Duty Glass Reinforced Polymer Pulley for optimized dimensional control and running surface durability
• Installation instructions included.
• 80mm O.D.; 10.2mm I.D.; 24.5mm width; smooth running surface; Thermoplastic.

This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and models, properly restoring critical vehicle operations.

Product Features:

• Direct replacement – this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehicles
• Restores performance – fixes a failed, squealing or groaning noise from a worn idler pulley
• Application specific – reverse engineered from the original design on certain vehicle years, makes and models
• Trustworthy quality – backed by team of engineers and quality specialists in the United States

Accelerator Belt Tension Pulley

The INA Accessory Belt Idler Pulley is a direct fit OEM replacement that contains the same high quality craftsmanship as the original equipment it replaces.

Product Features:

• OE-Equivalent and a direct fit application.
• Precision bearing
• OE High quality pulley assembly
• Durable long life performance.

This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and models, properly restoring critical vehicle operations.

Product Features:

• Direct replacement – this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehicles
• Restores performance – fixes a failed, squealing or groaning noise from a worn idler pulley
• Application specific – reverse engineered from the original design on certain vehicle years, makes and models
• Trustworthy quality – backed by team of engineers and quality specialists in the United States