Eccentric Shaft 11377630747 for BMW 2013-2018 N20 320I 328I F30 29285 4-Cylinder

Eccentric Shaft for BMW

This Valvetronic eccentric shaft for BMW is a critical variable valve lift component, cross-referencing with part numbers 11377630747 and 29285.

Overview

This eccentric shaft for BMW regulates valve lift height in the advanced Valvetronic variable valve timing system. Precision-ground to match exact factory lift profiles, it restores smooth engine performance and optimal fuel efficiency to 4-cylinder engines. Motorists experiencing limp mode or Valvetronic gear teeth wear will find this eccentric shaft for BMW provides a durable and precise repair solution.

Built For Performance

• Machined from high-grade hardened steel alloy to resist wear on the gear teeth.
• Precision-ground lobes ensure accurate valve lift and smooth engine operation.
• Direct replacement matches original equipment specifications for balance and runout.
• Engineered to withstand the high oil temperatures and friction inside the cylinder head.

Fits These Machines

• for BMW 320I F30 (2013-2018)
• for BMW 328I F30 (2013-2018)
• for BMW N20 4-Cylinder Engines

On-The-Job Use

• Replacing worn or stripped gear teeth on the cylinder head Valvetronic shaft.
• Resolving engine fault codes related to Valvetronic system actuator alignment.
• Restoring proper valve lift and engine response during a top-end rebuild.

Specs At A Glance

Good To Know

Q: What causes Valvetronic eccentric shafts to fail? A: Wear on the intermediate gear teeth, often due to lack of lubrication or high mileage, is the most common cause of failure.

Q: Do I need to replace the needle bearings when installing this shaft? A: Yes, it is highly recommended to install new needle bearings and support blocks during eccentric shaft replacement.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.