N54 Bulletproof Crank Kit - N54

Stop crank slip, protect your engine and refresh the entire front-end drive on your BMW N54 with this complete reliability package. Perfect for fast road and track, this is the no-nonsense solution UK enthusiasts trust.

Built around a precision Vargas Turbo Technologies CBC locking plate and a front main seal guard, this kit addresses the two biggest pain points on the twin-turbo straight six. The crankshaft bolt is securely locked so it cannot back out, and the opening behind the damper is sealed to help prevent shredded auxiliary belts from being pushed past the crank seal and into the sump. Add a full auxiliary belt service, fresh premium oil, a quality filter and the correct coolant, and you have the ultimate preventative maintenance and protection bundle for N54 powerplants.

We have installed this package on customer cars and our own builds. Feedback has been consistently superb for peace of mind and drivability. If you need fitting, MJ Modifications in Warwickshire offers in-house installation. Email info@mjmodifications.co.uk for a quote.

Why choose this N54 reliability kit

• Crank hub slip prevention with a proven crank bolt locking solution
• Serpentine belt ingestion protection using a front crank seal plate behind the harmonic balancer
• Complete auxiliary drive refresh for tensioner and guide pulleys
• Fresh long-life engine oil and a high quality filter for optimum lubrication
• Correct coolant concentrate for BMW systems
• All parts selected from trusted brands used daily by BMW specialists

Included components

• Vargas Turbo Technologies CBC crank bolt retainer with hardware
• Vargas Turbo Technologies front main seal plate that sits behind the damper
• Genuine auxiliary drive belt for the N54
• OEM belt tensioner and idler pulleys
• Liqui Moly 5W30 Longlife engine oil, 7 litres
• Hengst oil filter element with seals
• OEM oil filter housing and oil cooler gaskets, commonly known as OFHG
• Service reminder sticker
• Genuine BMW coolant concentrate, 1 litre

Common issues this kit helps prevent

• Crankshaft hub movement and timing shift on high load or high boost setups
• Aux belt shredding and debris entering the crankcase via the front seal
• Oil pick up blockage and oil pressure loss after belt failure
• Oil filter housing gasket leaks that can contaminate belts and cause coolant and oil cross contamination

Who is it for

• BMW owners seeking a crank hub slip fix for the N54
• 335i and 135i drivers who want a belt ingestion guard and front main seal protection
• 1M owners looking for a preventative maintenance bundle that covers auxiliary belt, pulleys, oil and coolant
• Tuners and track enthusiasts who want reliable hardware before increasing power

Vehicle compatibility

• BMW E82 1M Coupe, N54 3.0
• BMW E82 135i, N54 3.0
• BMW E88 135i Convertible, N54 3.0
• BMW E90 335i and 335xi, N54 3.0
• BMW E92 335i, 335is and 335xi, N54 3.0
• BMW E93 335i and 335is Convertible, N54 3.0

Search terms customers use for this item

BMW N54 crank hub fix, crank bolt capture plate, CBC kit, crankshaft bolt lock, front crank seal plate, harmonic balancer guard, serpentine belt ingestion prevention, OFHG gasket kit, auxiliary belt kit N54, belt tensioner and idler pulleys, BMW 335i 135i 1M reliability upgrade, E82 E88 E90 E92 E93 N54 servicing, UK BMW specialist, Warwickshire fitting.

Need fitting

Professional installation available at MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Add to basket today for a proven N54 protection package that keeps your engine happy and your driving uninterrupted.