2025 BMW M4 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 and tear. Premium lubricated ball bearings and double high temperature seals ensure peak bearing performance, the most critical element of a pulley’s service life.

Our front end auxiliary drive (FEAD) solutions ensure outstanding vibration damping in the smallest of installation spaces in today€™s high-load engines. Besides offering a complete selection of individual components, individually-assembled FEAD kits allow holistic maintenance that help avoid secondary damages.

This Litens supplied pulley is manufactured by one of the largest original equipment pulley suppliers to ensure proper fit and performance. This pulley is produced for serpentine belt routing applications and conforms to original equipment material, tolerances, and specifications. This replacement part is made in France to the O.E. specified design and meets all performance and durability requirements. This pulley is a Heavy duty thermoplastic pulley for long life. Manufactured for the 2011- 2014 BMW, X5, 235i, 335i, 435i, 535i, 640i, 740Li, 740i, Active Hybrid 5 and 7, M235i, M3, M4 X3, X5, X6 6-Cyl. 3.0 L, Idler Pulley – Upper. This 6 grooved plastic pulley comes with a front and rear dustshield and spacer with installation bolt for quick and trouble-free installation. Pre-assembled pulleys save installation time and ensure that all components are assembled to original specifications for both installation and performance. 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.