Piston Kits
ProX
ProX Piston Kits ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX piston kits are a first class solution to replace the original piston in your motorcycle. ProX piston kits for sleeved cylinders are available in standard size and a wide range of over sizes. ProX pistons for plated cylinders come in standard size, A, B, C, D & over sizes. All ProX piston kits are supplied complete with piston rings, wrist pin and circlips, ready to install!
KTM 2-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
50 Adventure
2002 - 08 39.5mm 2001 - 08 39.5mm 2009 - 26 39.5mm 1997 - 99 43.5mm 2000 - 08 45mm 2009 - 26 45mm 2003 - 26 47mm
.A.PX .A.PX .A.PX .A.PX .A.PX .A.PX .A.PX .A.PX .A.PX .A.PX .A.PX .A.PX .A.PX .B.PX
.PX .PX .PX .PX .PX .PX .PX .PX .PX .PX .PX .PX .PX .PX .PX
.PX .PX
–
56-W803 56-W803 56-W802 56-W312 56-W746 56-W313 56-W012 56-W740 56-W010 56-W035 56-W740 56-W035 56-W035 56-W036
56-R1246 56-R1246 56-R1246 56-R1247 56-R1248 56-R1248 56-R1227 56-R1249 56-R1250 56-R1223 56-R1249 56-R1223 56-R1223 56-R1251 56-R1277
56-0166 56-0166
50 SX 50 SX 60 SX 65 SX 65 SX 85 SX
.PROX .PROX
56-6306 56-6306
– – – – –
–
.PX .PX
.PROX .PROX .PROX
56-0166 56-0166
56-6307 56-6307 56-6307 56-821 56-800 56-800 56-800 56-800 56-800
.PX .PX
56-0166 56-0170
.PROX .PROX .PROX .PROX .PROX .PROX
.PX .PX .PX .PX .PX .PX
.PX .PX .PX .PX .PX .PX
125 SX 125 SX 125 SX
1994 - 00
56-783
56-0174
54.25mm
2001 - 06 54mm 2007 - 26 54mm
56-783 56-783 56-783 56-783 56-783
56-0174 56-0174 56-0174 56-0174 56-0174 56-0174
125 EXC 125 EXC 125 XC-W
1994 - 00
54.25mm
2001 - 16 54mm 2017 - 19 54mm
–
144 SX
2008 2020
56mm 58mm
– – – –
.PX .PX
.PROX .PROX
56-800 56-800
150 EXC TPi 150 EXC TPi
.A.PX
56-W6720
56-0174
2021 - 24 58mm 2009 - 15 56mm 2016 - 22 58mm
.A.PX .B.PX
–
–
–
56-W053 56-W036
150 SX 150 SX 150 SX
.PX .PX .PX
.PX
.PROX .PROX .PROX .PROX .PROX
56-R1251 56-R1277 56-R1277
56-0174
56-800 56-800 56-800 56-800 56-820 56-8020 56-8020 56-8020 56-8020 56-8020 56-8020 56-8020 56-8020 56-8020 56-8020
.A.PX .A.PX .A.PX
.PX .PX .PX
– – –
56-W6720 56-W6720 56-W6720
56-0601 56-0601 56-0601 56-0724 56-7924 56-7924 56-0724
2025
58mm
150 XC-W 200 EXC
2017 - 19 58mm 1998 - 16 64mm 1996 - 99 67.5mm 2000 - 02 66.4mm 2003 - 26 66.4mm 1996 - 99 67.5mm 2000 - 05 66.4mm 2006 - 17 66.4mm 2018 - 24 66.4mm 2014 - 17 66.4mm 1996 - 03 72mm 2004 - 16 72mm
–
.A.PX .B.PX .D.PX
.PX
–
.PX .PX .PX .PX .PX .PX .PX .PX .PX .PX
56-W770 56-W694 56-W774 56-W214 56-W694 56-W753 56-W214 56-W214 56-W214 56-W712 56-W854
56-R1252
56-0176 56-0183 56-0181 56-0181 56-0183 56-0181 56-0181 56-0181 56-0181 56-0181
250 SX 250 SX 250 SX
–
.PR .PR .PR .PR
.PROX .PROX .PROX .PROX .PROX .PROX .PROX .PROX .PROX .PROX
.PX .PX
56-R1253 56-R1200
.A.PROX
250 EXC 250 EXC 250 EXC
.B.PX
–
.B.PROX .A.PROX .A.PROX .A.PROX +00A.PX
.PX .PX .PX .PX .PX .PX .PX .PX .PX
.PR
56-R1207 56-R1200 56-R1200 56-R1200 56-R1201 56-R1226 56-R1201 56-R1201 56-R1201
56-781
.PR .PR .PR
56-7924 56-7924 56-7924
250 EXC / TPI 250 R Freeride
300 EXC 300 EXC 300 EXC
– – – – –
.A.PX
.PX .PX
56-0183 56-0181
2017
72mm
.A.PX .A.PX .A.PX
–
56-W9947 56-W9984 56-W9984
300 EXC TPI
2018 - 24 72mm 2023 - 26 72mm 1996 - 97 78mm 1998 - 02 78mm
.PX .PX .PX .PX
.PROX .PROX .PROX .PROX
56-0181 56-0181 56-0181 56-0181
56-8020 56-8020 56-8020 56-8020
300 SX
360 SX/EXC 380 SX/EXC
+00C.PX +00C.PX
– –
.PR .PR
56-W747 56-W748
56-7905 56-7905
*Please visit our website for current prices E8
www.oro2u.com
Tel: 01597 822 666
Fax: 01597 825 224
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