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Kies Motorsports 6-Bolt Crank Bolt Lock - Black (BMW N54)

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$119.00
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SKU: 125031
MPN: KMSMULTI-BTLK-N54-6-Blk

Product Details

Description

The Kies Crank Bolt Lock acts to "lock" the crank bolt on the N54 to prevent the crank bolt from backing out, which can lead to catastrophic engine failure. By locking the bolt into place, you virtually eliminate the possibility of the crank bolt working its way loose.

Please note by adding the Kies Crank Bolt Lock, it is still possible to spin a crank hub. However, it lessens the risk of the hub spinning because of a loose crank bolt. We highly encourage the use of this product in conjunction with a 4-pin crank hub upgrade.

With the Kies Crank Bolt Lock, we wanted to do something different than what's on the market today, and it was important to us that we had the product engineered and manufactured right here in the USA. 

First, we realized that there were situations where we needed to put a socket on the crank bolt to turn the engine by hand, so we built in a 32mm hex on the end of our billet 6061 aluminum crank bolt lock. By doing this, you don't need to remove the bolt lock to do other engine work! Next, we designed a single steel washer to lock the unit down instead of using 6-8 tiny washers. This ensures the best pressure distribution and ensures the easiest installation. 

The N54 can have an 8 Bolt Crank Hub. We recommend physically inspecting to see if your vehicle requires a 6 or an 8-bolt version on all N54 engines.

Product Features

- Proudly Made in the USA

- Available in both 6 and 8 Bolt Options 

- Machined 32mm Hex for Ease!

- Precision CNC Billet 6061 Aluminum Kies Bolt Lock

- Kies Blue or Stealth Black Anodized Finishing 

- Stainless Steel or Black Zinc Plated Single Washer

- 12.9 Strength Alloy Steel Silver or Black Zinc Plated Bolts 

installation

Please note we designed the Kies Bolt Lock in a way where it will bolt right up to your crank pulley/hub with ease; however, in rare occurrences, the crank bolt may need to be slightly stretched. Please ensure that the provided bolts are threading into the crank hub with ease before a final torque of 40nm per bolt in a star pattern. Medium-strength Loctite is highly recommended.

Fitment Guide

Does this fit my vehicle?

Fitment Guide
Start Year End Year Make Model Submodel Cyl Lit Fuel FuelDel ASP EngDesg Notes
2007 2010 BMW 3 Series 335i Sedan
335xi Sedan
335i xDrive Sedan
L6 3.0 GAS FI T ALL  
2007 2013 BMW 3 Series 335i Coupe
335xi Coupe
335i xDrive Coupe
335is Coupe
L6 3.0 GAS FI T ALL  
2007 2013 BMW 3 Series 335i Convertible
335is Convertible
L6 3.0 GAS FI T ALL  
2008 2010 BMW 5 Series 535i Sedan
535xi Sedan
535i xDrive Sedan
L6 3.0 GAS FI T ALL  
2008 2010 BMW 5 Series 530xi Wagon
535i xDrive Wagon
L6 3.0 GAS FI T ALL  

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