2020 BMW M4 Belt Tensioners

This Litens supplied tensioner is manufactured by the original equipment (O.E.) manufacturer. This part is specifically designed for BMW / Mini applications. Heavy duty thermoplastic pulley construction ensures long life and trouble-free performance. This tensioner meets or exceeds all original equipment fit, form, and performance characteristics. 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.

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.

The Dayco automatic belt tensioner features Dayco’s original, patented flat spring design to provide less operating range variation. It reduces the risk of premature accessory bearing failure due to high tension & lessens the risk of belt noise and slippage – or poor performance caused by low tension. A PTFE string wound within the spring resists abrasion and dampens noise. Dayco’s tensioner is also designed with a heavy-duty cast aluminum spring case and arm, which helps resist cracking and fatigue and offers additional strength, lessening the risk of distortion. Additional premium thermoplastic rubber spring slot plugs and rubber O-ring seals help keep contaminants out and zinc coated mounting bolts resist rust.

Product Features:

• Endures the toughest conditions while promoting quieter performance and longer life.
• Features a steel pivot tube on specific designs for enhanced stability
• Built to outperform and outlast competitive OE parts

This Litens belt tensioner is supplied by the original equipment (O.E.) tensioner supplier and meets all form, fit, and performance characteristics of the original equipment part. As with the original equipment part, this replacement tensioner is manufactured in Europe and produced for serpentine belt routing applications. This part fits both BMW cars and SUV’s. The tensioner maintains the O.E. round spring technology as well as the internal damping design specified for this application. This higher damping consequently reduces arm motion and wear as well as an optimized install pin included for ease on tensioner replacement. 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:

• Designed and engineered by the Original Equipment supplier of this application.
• Internal “round spring” technology to provide constant belt tension and alignment throughout its service life. The internal damping design provides quiet, smooth, system performance.
• Heavy duty thermoplastic pulley for long life. Pulley specs: 70mm (OD) x 17mm (ID) x 32mm (Width)
• Install Pin Included for Ease of Installation.
• Accessory drive belts and tensioners are manufactured with similar design life targets. Since belt removal is required to change the tensioner, replacing both will extend the system service life and lower labor costs versus individual replacement.
• Belt removal is required to change the tensioner. Therefore, doing both together will extend accessory drive life and lower overall labor versus performing these services separately.
• Installation instructions included.