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This product was last offered at the strikethrough price on
04-15-2026
This is an OEM INA mechanical tensioner for the serpentine belts on BMW's with the N54 engine. This tensioner keeps the belt for the alternator, power steering and Air Conditioning taught to provide maximum performance of each system.
OEM Schaeffler (INA, LuK, & FAG) is an engineering company that focuses on high-performance, precision manufacturing. With their individual brands INA, Luk, and FAG providing exceptionally high quality parts directly to BMW, as well as countless other automotive companies, their history of reliability and variety of offered parts makes Schaeffler a go-to replacement parts provider for all of us here at Turner Motorsport.
As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!
This item fits the following BMWs:
2008-2010 E82 BMW 135i
2011 E82 BMW 1M Coupe
2006-2010 E90 BMW 335i 335xi 335i xDrive - Sedan
2007-2013 E92 BMW 335i 335is 335xi 335i xDrive - Coupe
2007-2013 E93 BMW 335i 335is - Convertible
2004-2010 E60 BMW 535i 535xi 535i xDrive
This product was last offered at the strikethrough price on
06-25-2026
Operation is simple—charging starts automatically upon connection, without needing to disconnect the battery from the vehicle. The LITHIUM US will reset any low voltage protection electronics (Battery Management System) at the beginning of the charge. Charging can be manually restarted anytime using the 'Reset' button.
The CTEK LITHIUM US is a fully automatic, 'connect and forget' charger with 8 charging steps, including a testing sequence to determine if the LiFePO4 battery can accept and hold the charge, a unique maximization step to restore full capacity, and patented maintenance charging to ensure optimal performance even after long periods of inactivity. Splash-proof and dustproof (IP65), the LITHIUM US is safe and easy to use, protecting vehicle electronics with spark-free, reverse polarity protected, and short-circuit proof features. It also comes with a 5-year warranty from CTEK and a LIFETIME REPLACEMENT guarantee from us!
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