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Wiseco Piston Kits are sold complete with All Pistons, Rings, Taper Wall Wrist Pins, Circlips and Top End Gasket Kits.

Top End Bearing Located Below Each Kit.
Click Here For Cylinder Sleeves

Jet Ski JS300 '86-88, JS300SX '87-91
Crankcase cleanup required for WK1029 & WK1030 kits.

Kit Number

Displacment

Bore Size

Retail Price

Our Price

Buy

WK1026

295cc

76mm/std.

$ 141.95

$ 115.95

WK1027

299cc

76.5mm/.020

$ 141.95

$ 115.95

WK1028

303cc

77mm/.040

$ 141.95

$ 115.95

WK1029

307cc

77.5mm/.06

$ 152.95

$ 119.95

WK1030

311cc

78mm/.080

$ 152.95

$ 119.95

Top End Bearing (sold each): Part Number B1022 - $15.00

 

JS440's '77-90, JS440SX '91-92

Kit Number

Displacment

Bore Size

Retail Price

Our Price

Buy

WK1000

436cc

68mm/std.

$ 234.95

$ 189.95

WK1001

439cc

68.25mm/.010

$ 234.95

$ 189.95

WK1002

442cc

68.5mm/.020

$ 234.95

$ 189.95

WK1003

449cc

69mm/.040

$ 234.95

$ 189.95

WK1004

455cc

69.5mm/.060

$ 254.95

$ 199.95

WK1005

462cc

70mm/.080

$ 254.95

$ 199.95

Top End Bearing (sold each): Part Number B1021 - $15.00

 

JS440 '77-90, JS440SX '91-92 BIG BORE KIT
For use in aluminum cylinders only, sleeving required

Kit Number

Displacment

Bore Size

Retail Price

Our Price

Buy

WK1006

475cc

71mm/std.

$ 333.95

$ 246.95

WK1007

481cc

71.5mm/.020

$ 333.95

$ 246.95

WK1008

488cc

72mm/.040

$ 333.95

$ 246.95

WK1009

496cc

72.5mm/.060

$ 362.95

$ 259.95

WK1010

502cc

73mm/.080

$ 362.95

$ 259.95

Top End Bearing (sold each): Part Number B1021 - $15.00

 

JS550/SX '82-90
Supplied with copper head gasket. Crankcase cleanup required for WK1014 & WK1015 kits.

Kit Number

Displacment

Bore Size

Retail Price

Our Price

Buy

WK1011

531cc

75mm/std.

$ 256.95

$ 199.95

WK1012

537cc

75.5mm/.020

$ 256.95

$ 199.95

WK1013

544cc

76mm/.040

$ 256.95

$ 199.95

WK1014

551cc

76.5mm/.060

$ 278.95

$ 212.95

WK1015

559cc

77mm/.080

$ 278.95

$ 212.95

Top End Bearing (sold each): Part Number B1021 - $15.00

 

JS550/SX '91-96
Crankcase cleanup required for WK1048 kits.

Kit Number

Displacment

Bore Size

Retail Price

Our Price

Buy

WK1045

531cc

75mm/std.

$ 266.95

$ 199.95

WK1046

537cc

75.5mm/.020

$ 266.95

$ 199.95

WK1047

544cc

76mm/.040

$ 266.95

$ 199.95

WK1048

551cc

76.5mm/.060

$ 285.95

$ 212.95

WK1049

559cc

77mm/.080

$ 285.95

$ 212.95

Top End Bearing (sold each): Part Number B1021 - $15.00

 

JB650 Jet Mate '89-92, JL650SC '91-95, JF650TS '89-96, JF650X-2 '86-95, JS650SX '87-93
Crankcase cleanup required for WK1019 & WK1020 kits.

Kit Number

Displacment

Bore Size

Retail Price

Our Price

Buy

WK1016

635cc

76mm/std.

$ 273.95

$ 242.95

WK1017

643cc

76.5mm/.020

$ 273.95

$ 242.95

WK1018

657cc

77mm/.040

$ 273.95

$ 242.95

WK1019

660cc

77.5mm/.060

$ 296.95

$ 259.95

WK1020

668cc

78mm/.080

$ 296.95

$ 259.95

Top End Bearing (sold each): Part Number B1022 - $15.00

 

Kawasaki 750 All Models w/ 20mm Small Pin
Including  - JH750SS/Xi/XiR '92-95, JS750SX '92-95, JT750ST '94-95
Crankcase cleanup required for WK1090 & WK1091 kits.

Kit Number

Displacment

Bore Size

Retail Price

Our Price

Buy

WK1059

743cc

80mm/std.

$ 334.95

$ 261.95

WK1060

752cc

80.5mm/.020

$ 334.95

$ 261.95

WK1061

760cc

81mm/.040

$ 334.95

$ 261.95

WK1062

771cc

81.5mm/.060

$ 360.95

$ 279.95

WK1063

779cc

82mm/.080

$ 360.95

$ 279.95

WK1090

795cc

83mm/.140

$ 360.95

$ 279.95

WK1091

840cc

85mm/.200

$ 360.95

$ 279.95

WK1092

849cc

85.5mm/.120

$ 360.95

$ 279.95

Top End Bearing (sold each): Part Number B1023 - $15.00

 

Kawasaki 750 All Models w/ 22mm Big Pin
JH750ZXi, JS750SXi, JT750STS '95-97, JS750SXi Pro '98-00, JT750STX '98 - XPS / E - COATED
Crankcase cleanup & resleeving required for WK1261, WK1262 & WK1263 kits.

Kit Number

Displacment

Bore Size

Retail Price

Our Price

Buy

WK1241

743cc

80mm/std.

$ 335.95

$ 261.95

WK1242

752cc

80.5mm/.020

$ 335.95

$ 261.95

WK1243

760cc

81mm/.040

$ 335.95

$ 261.95

WK1244

771cc

81.5mm/.060

$ 361.95

$ 289.95

WK1245

779cc

82mm/.080

$ 361.95

$ 289.95

WK1261

795cc

83mm/.120

$ 328.95

$ 289.95

WK1262

820cc

84mm/.160

$ 328.95

$ 289.95

WK1263

830cc

84.5mm/.180

$ 328.95

$ 289.95

Top End Bearing (sold each): Part Number B1030 - $15.00

 

JH900ZXi '95-97, JT900STX '97-00

Kit Number

Displacment

Bore Size

Retail Price

Our Price

Buy

WK1100

891cc

73mm/std.

$ 442.95

$ 359.95

WK1101

903cc

73.5mm/.020

$ 442.95

$ 359.95

WK1102

915cc

74mm/.040

$ 442.95

$ 359.95

WK1103

928cc

74.5mm/.060

$ 476.95

$ 389.95

Top End Bearing (sold each): Part Number B1023 - $15.00

 

JH1100ZXi '96-00, JT1100STX '97-99 - XPS / E-COATED
Crankcase cleanup & resleeving required for WK1249 thru WK1266 kits.

Kit Number

Displacment

Bore Size

Retail Price

Our Price

Buy

WK1246

1071cc

80mm/std.

$ 492.95

$ 399.95

WK1247

1083cc

80.5mm/.020

$ 492.95

$ 399.95

WK1248

1097cc

81mm/.040

$ 492.95

$ 399.95

WK1249

1106cc

81.5mm/.060

$ 531.95

$ 399.95

WK1250

1125cc

82mm/.080

$ 516.95

$ 399.95

WK1264

1151cc

83mm/.120

$ 516.95

$ 399.95

WK1265

1179cc

84mm/.160

$ 516.95

$ 399.95

WK1266

1183cc

84.5mm/.180

$ 516.95

$ 399.95

Top End Bearing (sold each): Part Number B1030 - $15.00

 

Ultra 150 1200cc '99-00

Kit Number

Displacment

Bore Size

Retail Price

Our Price

Buy

WK1267

1176cc

80mm/std.

$ 557.95

$ 399.95

WK1268

1191cc

80.5mm/.020

$ 557.95

$ 399.95

WK1269

1205cc

81mm/.040

$ 557.95

$ 399.95

No Aftermarket Top End Bearing Available

 
Secure On-Line Ordering Atlantic Jet Sports, LLC - Manahawkin, NJ
E-mail:
sales@atlanticjetsports.com

Product descriptions, performance claims & testing results are that of the product manufacturer & not that of  Atlantic Jet Sports. Atlantic Jet Sports can not be held responsible for these claims.