12x rocker arm nuts for Porsche 911 F G 914-6 964 adjusting screw

We usually don’t stock this part, it is ordered from our German supplier so please allow us up to 8-10 days to have them delivered. It can happen our supplier is out of stock in that case we will notify you immediately and send you a refund. If you have any further questions or need the part very quickly please feel free to get in touch.

Components in the valve train are subject to high loads at changing temperatures. Controlled by the camshaft is actuated by the rocker arms on the valves.
Clacking / nailing noises, especially when the engine is cold, are signs of worn components in the valve train or incorrectly adjusted valve clearance.
During engine overhaul or maintenance, worn or damaged components must be replaced immediately to avoid consequential damage.
In addition to intake and exhaust valves for various Porsche models, we have many other engine parts as well as other spare parts in our program.

The FEBI brand has now been an integral part of the Bilstein Group for almost 100 years, although it operates independently of the group and is still family-owned. The word mark "febi" was registered in 1923 and has been manufacturing a wide range of spare parts in original equipment quality ever since. In this context, the febi brand stands for products that meet the highest standards of manufacturing quality and installation safety.

Reference numbers:
99903400500,   999.034.005.00,   999 034 005 00