2003 BMW Z4 Belt Tensioner Assemblies

The INA Accessory Belt Tensioner Assembly is a direct fit OEM replacement that contains the same high quality craftsmanship and materials as the original equipment it replaces.

Product Features:

• OE-Equivalent and a direct fit application
• High quality precision spring tension assembly
• OE specified bearing and pulley assembly
• Durable long life performance

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 and lessens the risk of belt noise and slip

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
• Rust resistant construction

The INA Accessory Belt Tensioner Assembly is a direct fit OEM replacement that contains the same high quality craftsmanship and materials as the original equipment it replaces.

Product Features:

• OE-Equivalent and a direct fit application
• High quality precision spring tension assembly
• OE specified bearing and pulley assembly
• Durable long life performance

Litens was the Original Equipment (O.E.) supplier of this BMW tensioner and offers this “O.E. Exact”* part for the aftermarket. This “O.E. Exact”* part for the aftermarket meets all original equipment form, fit, and function specifications. *(O.E. Exact – Original Equipment manufacturers prohibits the use of their part number or logo on parts sold to other customers. Therefore, the Litens aftermarket part may have minor cosmetic differences but still be exact in performance and design). Note: BMW used 2 different tensioner suppliers for this application so the original part you replace may look different. However the form, fit, and function specifications are the same. Choosing The Correct Replacement Part: Both the original equipment and Litens aftermarket tensioner use a round spring versus a flat spring and are marked “Made in Canada”. 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 supplier to ensure proper form, fit and performance
• Internal “round spring” technology to provide constant belt tension and alignment throughout its service life.
• Installation instructions included.
• Heavy Duty Glass Reinforced Polymer Pulley for optimized dimensional control and running surface durability
• Professional Mechanics will change this tensioner in approx. 20 minutes.
• Due to the fact that belts and tensioners have similar Original Equipment “design life targets”, it is often a best practice to replace the belt tensioner when replacing a worn or broken belt. Belt removal is required to change the tensioner. Therefore, d

This Litens tensioner is manufactured by the Original Equipment (O.E.) supplier of this popular tensioner used in BMW vehicles. This “O.E. Exact”* part for the aftermarket meets all original equipment form, fit, and function specifications. *(O.E. Exact – Original Equipment manufacturers prohibits the use of their part number or logo on parts sold to other customers. Therefore, the Litens aftermarket part may have minor cosmetic differences but still be exact in performance and design). This tensioner is equipped with a Lock-pin devise to hold the tensioner in an open position during installation as well as an integrated lift feature to assist in belt removal and installation. As with the O.E. part, this tensioner is manufactured in Germany for exact performance and fit. Application – Serpentine drive Alt/AC/PS. 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 supplier to ensure proper form, fit and performance
• Internal “round spring” technology to provide constant belt tension and alignment throughout its service life.
• Installation instructions included.
• Heavy Duty Glass Reinforced Polymer Pulley for optimized dimensional control and running surface durability
• Professional Mechanics will change this tensioner in approx. 20 minutes to 1 hour.
• Due to the fact that belts and tensioners have similar Original Equipment “design life targets”, it is often a best practice to replace the belt tensioner when replacing a worn or broken belt. Belt removal is required to change the tensioner. Therefore, d

This accessory drive belt tensioner assembly is designed to match the fit of an original equipment assembly on specified vehicles. It is engineered to help ensure proper belt tension when an original belt is slipping, broken, or worn from fatigue.

Product Features:

• Direct replacement – this accessory drive belt tensioner assembly is designed to match the fit of an original equipment assembly on specified vehicles
• Ideal solution – engineered to help ensure proper belt tension when an original belt is slipping, broken, or worn from fatigue
• Durable construction – designed and manufactured to strict specifications for reliable performance
• Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience