ENGINE
407
carriers
& racks
bumpers
& winches
accessories
plows &
implements
frame &
chassis
utv
accessories
body
handlebar
& grips
cables &
levers
fuel &
intake
engine
clutch
brakes
drive
steering &
suspension
bearings
tires &
wheels
chemicals
tools &
shop
exhaust
electrical
& ignition
VERTEX PISTONS
Type
Version Year Description
Comp.
Ratio
Cyl
Bore
(mm)
Piston
Diam.
(mm)
Disp
Size
Over
STD
Top End
Piston
Kit
Part #
Piston
Kit
Part #
Repl
Ring(s)
Part #
Wrist
Pin
Part #
Circlip
Part #
YAMAHA
CONTINUED
YFZ 450
FORGED
HIGH COMP
04-13 Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and wrist pin bearing
when applicable.
13:1 95 94.97 450
901772
YFZ 450
FORGED
HIGH COMP
04-13 Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and wrist pin bearing
when applicable.
13:1 95 94.96 450
901771
YFZ 450
FORGED
HIGH COMP
04-13 Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and wrist pin bearing
when applicable.
13:1 95 94.95 450
901770
YFZ 450
FORGED
REPLICA
04-13 Top end piston kit; includes: piston, rings, pin,
circlips, top end gaskets, and wrist pin bearing
when applicable.
12:1 95 94.97 450
901769
YFZ 450
FORGED
REPLICA
04-13 Top end piston kit; includes: piston, rings, pin,
circlips, top end gaskets, and wrist pin bearing
when applicable.
12:1 95 94.96 450
901768
YFZ 450
FORGED
REPLICA
04-13 Top end piston kit; includes: piston, rings, pin,
circlips, top end gaskets, and wrist pin bearing
when applicable.
12:1 95 94.95 450
901767
YFZ 450
FORGED
REPLICA
04-14 Replica Piston kit; Kit includes: Piston, rings, pin,
clips
12:1
95 94.95 450
0
901263 901646 901014 901683
YFZ 450
FORGED
REPLICA
04-14 Replica Piston kit; Kit includes: Piston, rings, pin,
clips
12:1
95 94.96 450
0
901264 901646 901014 901683
YFZ 450
FORGED
REPLICA
04-14 Replica Piston kit; Kit includes: Piston, rings, pin,
clips
12:1
95 94.97 450
0
901265 901646 901014 901683
YFZ 450
FORGED BIG
BORE
04-14 Big Bore Piston kit; +2mm makes 468cc. Kit
includes: Piston, rings, pin, clips
11.4:1 97 96.95 468
2
901277 901649 901014 901683
YFZ 450
FORGED BIG
BORE
04-14 Big Bore Piston kit; +2mm makes 468cc. Kit
includes: Piston, rings, pin, clips
11.4:1 97 96.96 468
2
901278 901649 901014 901683
YFZ 450
FORGED BIG
BORE
04-14 Big Bore Piston kit; +2mm makes 468cc. Kit
includes: Piston, rings, pin, clips
11.4:1 97 96.97 468
2
901279 901649 901014 901683
YFZ 450
FORGED BIG
BORE
04-14 Big Bore Piston kit; +3mm makes 478cc. Kit
includes: Piston, rings, pin, clips
11.4:1 98 97.95 478
3
901377 901622 901014 901683
YFZ 450
FORGED BIG
BORE
04-14 Big Bore Piston kit; +3mm makes 478cc. Kit
includes: Piston, rings, pin, clips
11.4:1 98 97.96 478
3
901378 901622 901014 901683
YFZ 450
FORGED BIG
BORE
04-14 Big Bore Piston kit; +3mm makes 478cc. Kit
includes: Piston, rings, pin, clips
11.4:1 98 97.97 478
3
901379 901622 901014 901683
YFZ 450
FORGED
HIGH COMP
04-14 High Compression Piston kit; 13.0:1. Kit includes:
Piston, rings, pin, clips
13:1 95 94.95 450
901472 901646 901014 901683
YFZ 450
FORGED
HIGH COMP
04-14 High Compression Piston kit; 13.0:1. Kit includes:
Piston, rings, pin, clips
13:1 95 94.96 450
901473 901646 901014 901683
YFZ 450
FORGED
HIGH COMP
04-14 High Compression Piston kit; 13.0:1. Kit includes:
Piston, rings, pin, clips
13:1 95 94.97 450
901474 901646 901014 901683
YFZ 450R FORGED
HIGH COMP
09-14 Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and cam chain
13:1 95 94.97 450
903173
YFZ 450R FORGED
HIGH COMP
09-14 Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and cam chain
13:1 95 94.96 450
903174
YFZ 450R FORGED
HIGH COMP
09-14 Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and cam chain
13:1 95 94.95 450
903175
YFZ 450R FORGED
REPLICA
09-14 Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and cam chain
12:1 95 94.97 450
903176
YFZ 450R FORGED
REPLICA
09-14 Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and cam chain
12:1 95 94.96 450
903177
YFZ 450R FORGED
REPLICA
09-14 Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and cam chain.
12:1 95 94.95 450
903178
YFZ 450R
09-14
903179
YFZ 450R
09-14
903180
YFZ 450R
09-14
903181
YFZ 450R
09-14
903182
YFZ 450R
09-14
903183
YFZ 450R
09-14
903184
YFZ 450R FORGED
REPLICA
09-14 Replica Piston kit; Kit includes: Piston, rings, pin,
clips
12:1
95 94.95 450
0
901263 901646 901014 901683
YFZ 450R FORGED
REPLICA
09-14 Replica Piston kit; Kit includes: Piston, rings, pin,
clips
12:1
95 94.96 450
0
901264 901646 901014 901683
