HUSQVARNA 4-STROKE
MODEL
YEARS
PISTON PART # WÖSSNER COMPR. RATIO OEM COMPR. RATIO
PISTON SIZE
OVERSIZE
RING SET
FC 250
2023 - 2025
4090DA
80.95
STD
RIK81.00/2
FE 250
2024
4090DB
80.96
+0.01
RIK81.00/2
14.8:1
14.4:1
4090DC
80.97
+0.02
RIK81.00/2
8771DA
82.95
STD
830XSY
8771DB
82.96
+0.01
830XSY
TC 310
2009-2010
13.0:1
12.9:1
TE 310
2011-2012
8867DA
81.95
STD
820XSY-3
TXC 310
2012
8867DB
81.96
+0.01
820XSY-3
13.0:1
13.0:1
8510DA
83.94
STD
840XSY
8510DB
83.95
+0.01
840XSY
TE 350
1990-1997
13.5:1
10.2:1
FC 350
2014-2022
8807DA
87.95
STD
TPR88.00/2
13.5:1 ( '2014-2015 )
13.5:1
FX 350
2017-2022
8807DB
87.96
+0.01
TPR88.00/2
8807DC
87.97
+0.02
TPR88.00/2
8007D200
89.95
+2.00
900XSY
14.0:1 ( '2016-2022 )
14.0:1
8007D300
90.91
+3.00
910XSY
120
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