Nockenwelle & Ventiltrieb

This item is an original spare part of the brand Aprilia/Piaggio. OEM part number for comparison 1A017389

Leaky valve stems are often responsible for the engine unnecessarily burns a lot of lubricating oil. Just by bad maintenance and old oil the rubbers are attacked and harden fast. If too much oil is burned, sooner or later the catalytic...

The rocker arms operate the valves in the 4-stroke cylinder head. Since the part actuated by the camshaft is mounted is mounted on ball bearings it is mechanical exposed to mechanical wear. These rocker arms are the perfect & cheap...

Poorly maintained Yamaha YI engines often have problems with a run-in camshaft. This is especially noticeable in the loss of power that occurs. Also the readjustment of the valves brings then nothing more, because the chrome layer of the...

Small component with great effect. The valve stem seals influence for example the oil consumption. Hard "stems" let oil run down the valve, which is then burned. For any work on the dismantled cylinder head, it is anyway recommended to...

Valve stem seals are an important part of the internal sealing of the engine. If the "stems" are leaking, oil penetrates via the valve guide into the inlet or exhaust channel. Scope of delivery: 1 pc.

Small component with great effect. The valve stem seal influences for example the oil consumption. Hard "stems" let oil run down the valve, which is then burned. Whenever work is carried out on the dismantled cylinder head, it is...

Valve stem seals are installed to prevent oil from the cylinder head from entering the combustion chamber via the valve guides. A blue smoking exhaust can be an indication for defective valve stem seals. Scope of delivery 4 pcs: 2x...