Vargas Crank Bolt Capture Kit - N54

Prevent the crank bolt from spinning loose

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Price:
$119.99

Failed crank hubs have been reported over several different BMW engines, including N54, N55, and S55, leading to valid worries about the integrity of the stock hub/bolt/sprocket assembly. If the crankshaft bolt becomes loose and the hub is allowed to spin it will cause the engine valve timing to skip or jump, potentially causing widespread engine damage.

This locking crank hub bolt kit puts an added layer of security to the crankshaft bolt. By locking the crankshaft bolt in place, it cannot become loose and back itself out. This bolt capture kit for N54 engines uses the 6 bolts from the vibration damper to stop the main crank bolt from coming loose. It weighs only 1.3 ounces and, in most cases, does not even require the bolt to be removed to install. Unlike other solutions no major disassembly of the engine is required. The best time to install this would be during a major tune-up such as a drive belt change or other service where the drive belt has to be removed.

Note 1: fits with Genuine BMW original crankshaft bolt only, not an aftermarket or other brand crankshaft bolt. A new bolt is not required.
Note 2: Vargas reports that a small number of original factory crank bolts will not line up with the capture kit. Their recommendation is to tighten the crankshaft bolt further until the hex of the bolt head aligns with the hex of the capture plate. Because of the extremely high torque spec and procedure for tightening the crank bolt, professional install is recommended if this rare adjustment is needed.

BMW Fitments:
1 Series
E82 / E88 (08-13) > 135i N54 (08-10)
E82 / E88 (08-13) > 1M (11-12)
3 Series
E90 / E91 / E92 / E93 (06-13) > 335i N54 (07-10)
E90 / E91 / E92 / E93 (06-13) > 335is N54
E90 / E91 / E92 / E93 (06-13) > 335xi N54 (07-10)
5 Series
E60 / E61 (04-10) > 535i
E60 / E61 (04-10) > 535xi
Z Series
E89 Z4 (2009-2016) > Z4 sDrive35i
E89 Z4 (2009-2016) > Z4 sDrive35is
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