Ford Focus MK2 RS 2.5 Turbo WOSSNER Forged Piston Kit (5Cyl)

£1,057.78

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Description

Ford Focus MK2 RS 2.5 Turbo WOSSNER Forged Piston Kit (5Cyl)

Wössner is regarded by Europe’s leading motorsport engine builders as being the piston of choice when building an engine not only to perform but to withstand the stresses and duress’s of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston.

This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high-performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent “hot spots” on piston crowns. Price includes all piston rings and gudgeon pins. K9489

Specifications

Part NumberK9489
Engine TypeFocus RS Mk2 & Focus ST 2.5 (using RS Rod)
OE Bore Size83.00mm
Bore Sizes Available83.00mm – 2521cc

83.50mm – 2551cc

Stroke93.2mm
Dome/Bowl Volume+11.5cc
Wossner Comp. RatioFocus RS Mk2 – 8.5:1

Focus ST Mk2 – 8.5:1

OE Comp. RatioFocus RS Mk2 – 8.5:1

Focus ST Mk2 – 9.0:1

Comp. Height28.4mm
Valves Per Cylinder4
Cylinders5

Size Options:

  • 83mm – K9489DA
  • 83.5mm – K9489D050

Please see our shop for more performance parts.

Additional information

Weight5 lbs
Manufacturer Part Number

Brand

Item Compatibility List

Car MakeModelCars YearVariantBodyStyleCars TypeEngine Notes
FordFocus2009MK II [2004-2012] HatchbackHatchback2.5 RS2521ccm 305HP 224KW (Petrol)
FordFocus2010MK II [2004-2012] HatchbackHatchback2.5 RS2521ccm 305HP 224KW (Petrol)
FordFocus2010MK II [2004-2012] HatchbackHatchback2.5 RS 5002521ccm 350HP 257KW (Petrol)
FordFocus2011MK II [2004-2012] HatchbackHatchback2.5 RS2521ccm 305HP 224KW (Petrol)
FordFocus2011MK II [2004-2012] HatchbackHatchback2.5 RS 5002521ccm 350HP 257KW (Petrol)

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