Manufacturer Renault

Kit Part Number K9211

Engine Code K4M

YOM From 1998

YOM To current

Piston number K9211D050, K9211DA

Bore Size 79.5mm, 80mm

Stroke 80.5mm

Compression Height 31.7mm

OEM Comp Ratio 10:01

Number of Rings 3

OEM Rod Length 128mm

Clip Part Number CW18

Pin Size 18mm

Pin Part Number WP054

Cylinders 4

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.