Wiseco & Wossner
Piston Kits
Wossner Piston Kits (WO) Wossner are the innovative specialists for high performance pistons. Wossner products are to be found in engines operating at the highest levels of motorsport, in competition and, of course, in everyday use – in fact, anywhere where longevity and operational noise are important factors. Wössner products are the source of the superior power behind the success of well known motor sport teams at national and international race meets.
YAMAHA Models
Years Size 1980 - 81 40mm 1979 - 87 40mm Up to 92 40mm
Piston Kit 56-W938 56-W938 56-W9726
Piston Rings Piston Pin
Piston Clips
Small End Bearing
LC50, QT50 YSR50
+000 +000
.4000
YB / TY 80
47mm
+000 .5200
56-W939 56-W771 56-W224 56-W253 56-W197 56-W254 56-W375 56-W374 56-W599 56-W195 56-W771 56-W198 56-W234
RT100
1990 - 00 52mm 1991 - 06 56mm 1975 - 92 56mm 2000 - 12 54mm 1979 - 81 66mm 1982 - 10 66mm 1976 - 81 66mm 1990 - 91 66mm 1984 - 86 66mm 1974 - 76 52mm 1996 - 09 73mm 1974 - 78 70mm
56-R512 56-R365
56-715
56-003
56-821 56-806
DT125R/E/X
.WO .000
.WO
56-7925
56-0152
DT125 LC/MX, RD125 LC
TTR125
+00A.WO .000.WO +0.00.WO
.WO .WO .WO .WO .WO .WO
56-R269
56-7962 56-7923 56-7923 56-7923 56-7923 56-7923
56-0152 56-0152 56-0152 56-0152 56-0152 56-0152
DT175 DT175 IT175
.WO .WO .WO .WO .WO
.WO .WO .WO .WO
56-R480 56-R480 56-R480 56-R480
56-803 56-803 56-803 56-832
DT200R
IT200
+000 .5200
RD200 TTR250
+00A.WO +000.WO
56-7937.WO
.WO .WO
56-R277 56-R487
56-0153 56-0153
TY250
.WO
.WO
56-7924
TZR250 3SV MT-03 (320) YZF-R3 (320)
56mm
+000
56-W9763 56-W203 56-W8999 56-W9728 56-W9898
2006 - 11 100mm 2012 - 21 68mm 1973 - 75 64mm
.A.WO
.000.WO
RD 350 350 R5
.6400
1973 - 75 64.5mm O/S 1950 - 14 64mm 1980 - 87 64mm 1975 - 81 85mm 1976 - 79 64mm 1976 - 82 64mm 1976 - 82 64mm All Years 87mm 2001 - 11 66mm 2001 - 11 66mm 1984 - 96 95mm 1984 - 96 95mm 2001 - 05 65.5mm 2001 - 05 65.5mm 2006 - 11 67mm 2006 - 14 67mm 1974 - 81 76.5mm 1974 - 81 80mm O/S 1991 - 98 100mm 2004 - 11 100mm 2008 - 13 100mm 1995 - 97 100mm 2015 - 17 80mm 2018 - 21 80mm 2021 - 23 80mm
.050.WO
.WO
.WO
.WO
56-R355
56-7923
56-0152
56-832
RD350 AC RD350 LC DT/MX400
+00A +00A
56-W513 56-W513 56-W549
.A.WO
.WO
56-R574
56-7948
56-0153
RD400 RD400 RD450
.6400
56-W9728 56-W513 56-W513 56-W4045 56-W8825 56-W8824 56-W4797 56-W4596 56-W9730 56-W9904 56-W9874 56-W9731 56-W9899 56-W9732 56-W8507
+00 +00
XT/TT/SR 500
+000
.WO
56-R310 56-R852 56-R852 56-R507 56-R507
56-7961 56-701 56-701 56-7921 56-7921
56-0155 56-0151 56-0151 56-012 56-012
T-Max 500 (Comp 13.00) (Set 2)
.A.WO .A.WO
.WO .WO
(Comp 9.00) (Set 2)
XT/SRX 600
.WI .WI
.WI .WI
XT/SRX 600 (11.5:1 Comp)
.000.WI
YZF-R6 YZF-R6
.6550
.000.WO
.WO.41
56-7925
56-0152
YZF-R6 (Comp 13:1) (Set 4)
.000
YFZ-R6 XS650 XS650 XTZ660
.6700
56-718
56-0151 56-0155
.150.WO
.WO
.8000 +00A
XT660R, X
.A.WO .A.WO
56-W203 56-W203
XTZ660 SZR660
56-W8507 56-W9939 56-W9939 56-W9939 56-W9939 56-W9939 56-W9734 56-W9735 56-W9736 56-W9737 56-W9733
FZ-07
.000 .000 .000 .000 .000
MT-07 (700) Tenere 700
XSR 700 YZF-R7
2018 - 21 80mm 2022 - 23 80mm 2001 - 05 74mm 2004 - 06 77mm 2007 - 08 74mm 2009 - 13 78mm 1989 - 96 77mm
FZ1 FZ1 FZ1 FZ1
.7400 .7700 .7700 .7800 .7700
FZR1000
FZR1000 EXUP (4x1)
1989 - 96 77mm O/S 56-W9903.150.WO
59-7964
.WO
56-0160
* Note; Most Kits are available from standard size up to +2.00mm over size *
*Please visit our website for current prices
E-mail: sales@oro2u.com
www.oro2u.com
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