Manufacturer Mini Cooper

Kit Part Number K9521M

Engine Code N14B16A

YOM From 2007

YOM To         current

Piston number K9521D025M, K9521D050M, K9521DAM

Bore Size 77.25mm – K9521D025, 77.5mm – K9521D050, 77mm – K9521DA

Stroke         85.8mm

Compression Height 28.5mm

OEM Comp Ratio 10.5:1

Number of Rings 3

OEM Rod Length 132.5mm

Clip Part Number CW20

Pin Size 20mm

Pin Part Number WP068DLC

Cylinders 4

Valves Per Cylinder 4

Suits Wossner Con Rod G0212

Con Rod Length C/C 132.5mm

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.