5150 AutoSport
BMW N54 Crank Hub by 5150 AutoSport
BMW N54 Crank Hub by 5150 AutoSport
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The BMW N54 Engine's Crank Hub is a critical component, linking the crankshaft, water pump, power steering pump, and alternator. OEM hub failure occurs as the crank hub separates from the crankshaft, spinning independently of the crankshaft. This failure is not only well-known among technicians and enthusiasts, but a catastrophic failure, causing severe engine damage.
The Problem
OEM Failure is mainly due to the design of the crank hub assembly; the OEM crankshaft's splined end is press-fit into the crank hub. As the assembly ages and wears, the connection between the hub and crank weakens, leading to slippage or complete separation.
As the crank hub separates from the crank, the timing chain loses its synchronization with the crankshaft and camshaft, causing piston-to-valve contact and severe internal engine damage.
The 5150 Solution
Improved Materials: Our Upgraded Crank Hub is machined from 4340 Billet Steel to ensure strength and endurance, then heat treated to ensure longevity.
4-Pin Design: The 5150 Crank Hub uses a 4-pin attachment style, distributing load across (4) points rather than the OEM single point press-fit.
Included Crank Bolt: To further reduce the risk of slipping, spinning, or failure, our Crank Hub Upgrade includes a genuine BMW Crank Bolt, providing additional attachment reinforcement. Direct fitment for BMW part # 11211439395.
Precision Machining: Ensuring precise fitment and alignment, the 5150 Upgraded Crank Hub is engineered and manufactured to tighter tolerances than OEM hubs. This also functions to maintain optimal engine timing and performance. Direct fitment and upgrade over BMW part # 11237570107.
Power-Ready: 5150 Upgraded Crank Hubs are designed and manufactured with high performance, high boost applications. While they can be used as simply as a preventative OEM-replacement, they are also ready for the high heat and high stresses of high horsepower performance engine builds and aggressive driving applications.
BMW N54 Applications:
1 Series
2007-2010 E82/E88 135i
2011-2012 E82 1M
3 Series
2006-2010 E90/E91/E92/E93 335i
2011-2013 E92/E93 335is
5 Series
2008-2010 E60/E61 535i
7 Series
2009-2012 F01/F02 740i / 740Li
X6 Series
2008-2010 E71 X6 xDrive35i
Z4 Series
2009-2016 E89 Z4 sDrive35i
2010-2016 E89 Z4 sDrive35is
Alpina B3 Series
2007-2013 E90/E91/E92/E93 B3 Bi-Turbo
Alpina B3 S Series
2010-2013 E90/E91/E92/E93 B3 S Bi-Turbo
Alpina D3 Series
2008-2013 E90/E91/E92/E93 D3 Bi-Turbo
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SKU:5150-CrankHub-N54
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