ENGINE
351
2015 OFFROAD CATALOG
accessories
body
handlebar
& grips
cables &
levers
engine
fuel &
intake
electrical
& ignition
clutch
drive
bearings
brakes
steering &
suspension
tires
tools &
shop
exhaust
APP.
YEAR VERSION
DESCRIPTION
COMP.
RATIO
CYL.
BORE
(MM)
PISTON
DIAM.
(MM)
DIS-
PLACE-
MENT
SIZE
OVER
STD
TOP END
REBUILD
KIT
PISTON
KIT RINGS
WRIST
PIN
CIR-
CLIP
YAMAHA
CONTINUED
WR 450F 07-13 Forged Replica Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and cam chain.
12.5:1 95 94.94 450 STD
903265 -----
-----
-----
-----
WR 450F 07-13 Forged Replica Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and cam chain.
12.5:1 95 94.93 450 STD
903266 -----
-----
-----
-----
WR 450F 07-13 Forged Replica Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and wrist pin bearing
when applicable.
12.5:1 95 94.95 450 STD
903117 -----
-----
-----
-----
WR 450F 07-13 Forged Replica Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and wrist pin bearing
when applicable.
12.5:1 95 94.94 450 STD
903116 -----
-----
-----
-----
WR 450F 07-13 Forged Replica Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and wrist pin bearing
when applicable.
12.5:1 95 94.93 450 STD
903115 -----
-----
-----
-----
YZ 125
94-96 Cast Replica
Replica Piston kit; Kit includes: Piston, rings, pin,
clips
54 53.94 125
-----
901145 901581 901024 -----
YZ 125
97 Cast Replica
Replica Piston kit; Kit includes: Piston, rings, pin, clips
54 53.94 125
-----
901158 901581 901009 901675
YZ 125
98-01 Cast Replica
Top end piston kit; includes: piston, rings, pin,
circlips, top end gaskets, and wrist pin bearing
when applicable.
STD 54 53.94 125
903118 -----
-----
-----
901680
YZ 125
98-01 Cast Replica
Replica Piston kit; Kit includes: Piston, rings, pin,
clips
STD 54 53.94 125
-----
901167 901581 901009 -----
YZ 125
02-04 Cast Replica
Top end piston kit; includes: piston, rings, pin,
circlips, top end gaskets, and wrist pin bearing
when applicable.
STD 54 53.94 125
903119 -----
-----
-----
901680
YZ 125
02-04 Cast Replica
Replica Piston kit; Kit includes: Piston, rings, pin,
clips
54 53.94 125
-----
901193 901581 901009 -----
YZ 125
05-14 Cast Replica
Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and wrist pin bearing
when applicable.
54 53.94 125
903120 -----
-----
-----
901675
YZ 125
05-15 Cast Big Bore
Big Bore piston kit; makes 130cc. Includes
piston, rings, pin, clips.
STD 55 54.95 130
1
-----
901941 901943 901009 901675
YZ 125
05-15 Cast Big Bore
Big Bore piston kit; makes 135cc. Includes
piston, rings, pin, clips.
STD 56 55.95 135
2
-----
901942 901944 901009 901680
YZ 125
05-15 Cast Replica
Replica Piston kit; Kit includes: Piston, rings, pin,
clips
54 53.94 125
-----
901289 901581 901009 901680
YZ 125
05-15 Forged Big Bore Big Bore Piston kit; +4mm makes 144cc Kit
includes: Piston, rings, pin, clips
58 57.95 144
4
-----
901347 901585 901667 901680
YZ 125
05-15 Forged Big Bore Big Bore Piston kit; +4mm makes 144cc Kit
includes: Piston, rings, pin, clips
58 57.96 144
4
-----
901945 901585 901667 -----
YZ 250
90-95 Cast Replica
Replica Piston kit; Kit includes: Piston, rings, pin,
clips
68 67.95 250
-----
901138 901109 901007 901682
YZ 250
96-98 Cast Replica
Replica Piston kit; Kit includes: Piston, rings, pin,
clips
68 67.94 250
-----
901938 901109 901007 901682
YZ 250
96-98 Cast Replica
Replica Piston kit; Kit includes: Piston, rings, pin,
clips
68 67.95 250
-----
901150 901109 901007 -----
YZ 250
99-00 Cast Replica
Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and wrist pin bearing
when applicable.
66.4 66.35 250
903122 -----
-----
-----
901682
YZ 250
99-15 Cast Replica
Replica Piston kit; Kit includes: Piston, rings, pin,
clips
66.4 66.34 250
-----
901946 901103 901034 901682
YZ 250
99-15 Cast Replica
Replica Piston kit; Kit includes: Piston, rings, pin,
clips
66.4 66.35 250
-----
901175 901103 901034 -----
YZ 250
01 Cast Replica
Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and wrist pin bearing
when applicable.
66.4 66.35 250
903121 -----
-----
-----
901682
YZ 250
02-14 Cast Replica
Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and wrist pin bearing
when applicable.
66.4 66.35 250
903123 -----
-----
-----
-----
YZ 250F 01-04 Forged Replica Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and cam chain.
12.7:1 77 76.96 250
903255 -----
-----
-----
-----
PISTONS
