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Wossner Pistons

BMW 2002 2.0 8v High Comp Wossner Forged Piston Kit 

2002TII 2.0 8v High Comp Forged Piston Kit.

Bore size: Please confirm the required bore size before ordering. The kit reference does not identify an individual piston size.

Product references

  • Kit reference: K9399

Technical specifications

Engine Code M10B20
Model years from 1968
Model years to 1979
Bore Size 89.2mm – K9399D020 , 89.5mm – K9399D050 , 89.75mm – K9399D075 , 89mm – K9399DA , 90mm – K9399D100
Stroke 80mm
Compression Height 43.5mm
Number of Rings 3
Piston pin diameter 22mm
Number of cylinders 4
Valves Per Cylinder 2

Piston size specifications

Piston reference Piston diameter Compression ratio
K9399D100 89.93mm 12.04:1
K9399D020 89.13mm 11.85:1
K9399D050 89.43mm 11.92:1
K9399D075 89.68mm 11.98:1
K9399DA 88.93mm 11.8:1

Piston diameter and cylinder bore are different measurements. Confirm the correct size and engine specification before ordering.

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