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Wossner Pistons

Wossner RSX Type-S & Civic Type-R K20 9.0:1 Comp Forged Piston Kit Hard Anodised (K9565)

RSX Type-S & Civic Type-R K20 9.0:1 Comp Forged Piston Kit Hard Anodised.

Manufacturer kit reference: K9565

Technical specifications

Engine Code K20A2 / A3 , K20Z4
YOM From 2001
YOM To 2007
Bore Size 86.5mm – K9565D050 , 86mm – K9565DA , 87.5mm – K9565D150 , 87mm – K9565D100 , 88mm – K9565D200 , 89mm – K9565D300
Stroke 86mm
Compression Height 30mm
OEM Comp Ratio 11:01
Number of Rings 3
OEM Rod Length 139mm
Clip Part Number CW22
Pin Size 22mm
Pin Part Number WP136-SP
Cylinders 4
Valves Per Cylinder 4

Piston specifications by size

Piston reference Piston diameter Compression ratio Capacity
K9565D300 88.93mm 9.5:1 2140cc
K9565D200 87.93mm 9.4:1 2092cc
K9565D150 87.43mm 9.3:1 2068cc
K9565D100 86.93mm 9.2:1 2044cc
K9565D050 86.43mm 9.1:1 1819cc
K9565DA 85.93mm 9.0:1 1998cc

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

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