BMW S55 Crank Hub Fix & Service Kit – Vargas Crank Bolt Capture, Crank Pulley Lock, Front Main Seal Guard, Serpentine Belt/Tensioner – M2 Competition, M3, M4 (F87 F80 F82 F83) – Timing Slip Prevention Upgrade

Ultimate reliability upgrade for BMW M2 Competition, M3 and M4 with the 3.0 twin turbo straight six

Protect your engine from timing slip and auxiliary belt ingestion with a proven, all-in-one solution. This comprehensive bundle combines a crank bolt locking plate, a front seal guard and a full service refresh of key drive components and fluids. It is the smart preventative maintenance package for owners who want long term confidence and worry free performance from their BMW M car.

Why enthusiasts choose this package

• Prevents hub rotation and keeps timing where it should be by mechanically locking the crank fastener to the hub
• Shields the front crank seal opening to stop a failed auxiliary drive belt from being pulled into the engine
• Refreshes the complete front end drive with new belt, tensioner and idlers for quiet, consistent operation
• Includes premium oil and filter plus fresh coolant for a proper service while the work is being carried out
• Hand picked, brand name components trusted by BMW tuners and track day regulars

What is included

• Vargas Turbo bolt capture plate with hardware
• Vargas Turbo front seal guard plate
• Genuine accessory drive belt
• Genuine belt tensioner and idler pulleys
• Liqui Moly Longtime High Tech 5W-30 engine oil, 7 litres
• Hengst oil filter
• OEM oil filter housing and oil cooler gaskets
• Oil change reminder label
• Genuine BMW concentrated coolant, 1 litre

What it helps prevent

• Crank hub movement that can lead to timing misalignment
• Aux belt shredding and being drawn past the front crank seal
• Debris in the sump that can obstruct the oil pickup and reduce oil pressure
• Oil filter housing gasket leaks that contaminate the engine bay and coolant system

Fitment

• BMW F80 M3 3.0 twin turbo inline six
• BMW F82 M4 3.0 twin turbo inline six
• BMW F83 M4 3.0 twin turbo inline six
• BMW F87 M2 Competition 3.0 twin turbo inline six

Installation and support

Professional fitting recommended. MJ Modifications in Warwickshire can supply and install this package and carry out a full service at the same time. For a tailored quote, email info@mjmodifications.co.uk.

Trusted by our customers

We have installed this setup for owners who daily drive, enjoy spirited B road runs and attend occasional track days. Feedback has been consistently positive, with smoother operation, peace of mind and zero timing slip issues reported after installation.

Search-friendly terms customers use

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