ENGINE
396
body
accessories
handlebar
& grips
cables &
levers
engine
fuel &
intake
carriers
& racks
plows &
implements
frame &
chassis
utv
accessories
bumpers &
winches
electrical
& ignition
clutch
brakes
drive
steering &
suspension
bearings
tires &
wheels
chemicals
tools &
shop
exhaust
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 #
HONDA
TRX 400EX
CAST
REPLICA
99-08 Replica Piston kit; Kit includes: Piston, rings, pin,
clips
9.3:1 85 84.97 400
901302 901710 901655 901683
TRX 400EX
CAST
REPLICA
99-08 Replica Piston kit; +0.50mm makes 401cc. Kit
includes: Piston, rings, pin, clips
9.3:1 85.5 85.47 401 0.5
901077 901766 901655 901683
TRX 400EX
CAST
REPLICA
99-08 Replica Piston kit; +1.00mm makes 406cc. Kit
includes: Piston, rings, pin, clips
9.3:1 86 85.97 406
1
901078 903200 901655 901683
TRX 400EX CAST BIG
BORE
99-08 +2mm Big Bore (makes 416cc) Kit includes: Piston,
rings, pin, clips
9.3 87 86.95 416
2
901082 901636 901655 901683
TRX 400EX CAST BIG
BORE
99-08 +3mm Big Bore (makes 425cc) Kit includes: Piston,
rings, pin, clips
9.3 88 87.95 425
3
901083 901637 902655 901683
TRX 400EX CAST BIG
BORE
99-08 +4mm Big Bore (makes 435cc) Kit includes: Piston,
rings, pin, clips
9.3 89 88.95 435
4
901084 901638 901655 901683
TRX 400EX CAST BIG
BORE
99-08 Stroker piston must be used with Hot Rods crank
4240. Makes 460cc
9.3 89 88.94 460
4
901519 901639 901662 901697
TRX 400X
FORGED
REPLICA
09-14 Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and wrist pin bearing
when applicable.
9.3:1 85 84.95 400
901693
TRX 400X
CAST
REPLICA
09-14 Replica Piston kit; Kit includes: Piston, rings, pin,
clips
9.3:1 85 84.97 400
901302 901710 901655 901683
TRX 400X
CAST
REPLICA
09-14 Replica Piston kit; +0.50mm makes 401cc. Kit
includes: Piston, rings, pin, clips
9.3:1 85.5 85.47 401 0.5
901077 901766 901655 901683
TRX 400X
CAST
REPLICA
09-14 Replica Piston kit; +1.00mm makes 406cc. Kit
includes: Piston, rings, pin, clips
9.3:1 86 85.97
406
1
901078 903200
901655 901683
TRX 400X
CAST BIG
BORE
09-14 +2mm Big Bore (makes 416cc) Kit includes: Piston,
rings, pin, clips
9.3 87 86.95 416
2
901082 901636 901655 901683
TRX 400X
CAST BIG
BORE
09-14 +3mm Big Bore (makes 425cc) Kit includes: Piston,
rings, pin, clips
9.3 88 87.95 425
3
901083 901637 901655 901683
TRX 400X
CAST BIG
BORE
09-14 +4mm Big Bore (makes 435cc) Kit includes: Piston,
rings, pin, clips
9.3 89 88.95 435
4
901084 906138 901655 901683
TRX 400X
CAST BIG
BORE
09-14 Stroker piston must be used with Hot Rods crank
4240. Makes 460cc
9.3 89 88.94 460
4
901519 901639 901662 901697
TRX 450ER CAST
REPLICA
06-13 Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and cam chain
12:1 96 95.97 450
903138
TRX 450ER CAST
REPLICA
06-13 Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and cam chain
12:1 96 95.96 450
903139
TRX 450ER CAST
REPLICA
06-13 Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and cam chain
12:1 96 95.95 450
903140
TRX 450ER CAST
REPLICA
06-13 Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and wrist pin bearing
when applicable.
12:1 96 95.97 450
901696
TRX 450ER CAST
REPLICA
06-13 Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and wrist pin bearing
when applicable.
12:1 96 95.96 450
901695
TRX 450ER CAST
REPLICA
06-13 Top end piston kit includes: piston, rings, pins,
circlips, top end gaskets, and wrist pin bearing
when applicable.
12:1 96 95.95 450
901694
TRX 450ER CAST
REPLICA
06-13 Replica Piston kit; Kit includes: Piston, rings, pin,
clips
12:1 96 95.95 450
901429 901648 901016 901684
TRX 450ER CAST
REPLICA
06-13 Replica Piston kit; Kit includes: Piston, rings, pin,
clips
12:1 96 95.96 450
901430 901648 901016 901684
TRX 450ER CAST
REPLICA
06-13 Replica Piston kit; Kit includes: Piston, rings, pin,
clips
12:1 96 95.97 450
901431 901648 901016 901684
TRX 450ER CAST BIG
BORE
06-13 Big Bore Piston kit; +3mm makes 477cc. Kit
includes: Piston, rings, pin, clips
12.0:1 99 98.95 477
3
901432 901698 901699 901684
TRX 450ER CAST BIG
BORE
06-13 Big Bore Piston kit; +3mm makes 477cc. Kit
includes: Piston, rings, pin, clips
12.0:1 99 98.96 477
3
901433 901698 901699 901684
TRX 450ER CAST BIG
BORE
06-13 Big Bore Piston kit; +3mm makes 477cc. Kit
includes: Piston, rings, pin, clips
12.0:1 99 98.97 477
3
901434 901698 901699 901684
TRX 450ER FORGED
HIGH COMP
06-13 High Compression Piston kit; 13.5:1 kit includes:
Piston, rings, pin, clips
13.5:1 96 95.95 450
901466 901648 901699 901684
TRX 450ER FORGED
HIGH COMP
06-13 High Compression Piston kit; 13.5:1 kit includes:
Piston, rings, pin, clips
13.5:1 96 95.96 450
901467 901648 901699 901684
TRX 450ER FORGED
HIGH COMP
06-13 High Compression Piston kit; 13.5:1 kit includes:
Piston, rings, pin, clips
13.5:1 96 95.97 450
901468 901648 901699 901684
