Manufacturer Audi

Kit Part Number K9551

Engine Code EA839

YOM From 2017

Piston number K9551DA

Bore Size 84.5mm

Stroke 86mm

Compression Height 30mm

OEM Comp Ratio 11.2:1

Number of Rings 3

Clip Part Number CW22

Pin Size 22mm

Pin Part Number WP136-SP

Cylinders 6

Valves Per Cylinder 4

Wössner is the innovative specialists for high performance pistons and conrods. Wössner products are to be found in engines operating at the highest levels of motor sport, in competition and, of course, in everyday use – in fact, anywhere where longevity

and operational noise are important factors.

Wössner products are the source of the superior power behind the success of well known motor sport teams at national and international race meets.