Kolbenschmidt 11-37-7-630-747 Eccentric Shaft Valvetronic Variable Valve Lift

The Kolbenschmidt 11-37-7-630-747 Eccentric Shaft is a precision-engineered replacement component for BMW's Valvetronic variable valve lift system. Manufactured to OEM specifications by Kolbenschmidt (KS), one of the world's leading suppliers of engine components, this eccentric shaft plays a critical role in continuously varying intake valve lift to optimize engine performance, fuel efficiency, and emissions across the full RPM range.

The Valvetronic eccentric shaft works in conjunction with the eccentric shaft sensor and actuator motor to precisely control the position of intermediate rocker arms, allowing the engine management system to regulate valve lift without relying solely on the throttle body. A worn or damaged eccentric shaft can result in rough idle, reduced power, increased fuel consumption, or Valvetronic system fault codes.

Key Features:

• Manufactured by Kolbenschmidt (KS) to OEM-equivalent tolerances and specifications
• Direct replacement for BMW OEM part number 11-37-7-630-747
• Precision-machined for accurate Valvetronic system operation
• Engineered for consistent valve lift control across the full RPM range
• Supports optimal fuel economy, power output, and emissions compliance
• Drop-in fitment — no modification required

Kolbenschmidt is a globally recognized OEM supplier with decades of experience producing crankshafts, pistons, bearings, and valve train components for major automotive manufacturers. This eccentric shaft is an ideal choice for professional technicians and enthusiasts seeking a reliable, OEM-quality repair solution for BMW Valvetronic system service.