743 / 1410
EXHAUST
TIRES
TUBES
TIRE
ACCESSORIES
BIKE
ACCESSORIES
SNOWBIKE
PITBIKE
GRAPHICS /SEAT
BODY
CONTROLS
BARS /GRIPS
LEVERS
CABLES
INTAKE
FUELSYSTEMS
AIR FILTERS
OIL FILTERS
ELECTRICAL
SPARKPLUGS
BATTERIES
CHARGERS
ENGINE
PISTONS
SUSPENSION
DRIVE
CHAIN
SPROCKETS
BRAKES
CHEMICALS
GASCANS
TOOLS
LOCKS
RAMPS /STRAPS
TRAILERS
PROMOTIONAL
REFERENCE
INDEX
x
X X
X
X
743
• Completely rebuildable
• Must purchase main
bearings separately
• Trued to stock specs
• Main seals included
when applicable
COMPLETE CRANK ASSEMBLIES
and
MAIN BEARING KITS
Crankshafts do not include main bearings-
Must purchase separately
Stkr = Stroker Crank
* Head chamber area must be machined 2mm deeper to accept longer stroke crank.
** Head chamber area must be machined 4mm deeper to accept longer stroke crank.
Application
Year
Crankshaft
Std. or Stroker
List
Bearing/Seal Kit
List
HONDA
CR80/85
‘86-04
421-4012
Std.
$184.95 421-K001
$48.95
CR85
‘05-07
421-4068
Std.
183.95 421-K001
48.95
CR125
‘90-07
421-4053
Std.
229.95 421-K002
48.95
CRF150R
‘07-17
421-4075
Std.
229.95 421-K052
64.95
421-4175
Stkr 2mm 156cc
289.95 421-K052
64.95
CR250
‘92-01
421-4002
Std.
269.95 421-K003
68.95
‘02-07
421-4056
Std.
249.95 421-K003
68.95
CRF250R
‘04-05
421-4083
Std.
319.95 421-K041
48.95
421-4183
Stkr 1.5mm 257cc
359.95 421-K041
48.95
‘06-09
421-4083
Std.
319.95 421-K073
48.95
421-4183
Stkr 1.5mm 257cc
359.95 421-K073
48.95
‘10-15
421-4097
Std.
319.95 421-K073
48.95
421-4197
Stkr 2mm 259cc
359.95 421-K073
48.95
CRF250X
‘04-06
421-4095
Std.
299.95 421-K041
48.95
421-4195
Stkr 2mm 259cc
361.95 421-K041
48.95
‘07-16
421-4095
Std.
299.95 421-K073
48.95
421-4195
Stkr 2mm 259cc
361.95 421-K073
48.95
CRF450R
‘02-05
421-4048
Std.
349.95 421-K019
59.95
421-4148
Stkr 3mm 470cc
405.95 421-K019
59.95
‘06-08
421-4048
Std.
349.95 421-K072
55.95
421-4148
Stkr 3mm 470cc
405.95 421-K072
55.95
‘09-12
421-4093
Std.
379.95 421-K072
55.95
421-4193
Stkr 3mm 470cc
449.95 421-K072
55.95
‘13-16
421-4084
Std.
389.95 421-K072
55.95
CRF450X
‘05-16
421-4070
Std.
349.95 421-K063
72.95
421-4170
Stkr 3mm 470cc
409.95 421-K063
72.95
CR500R
‘87-01
421-4030
Std.
299.95 421-K234
72.95
HUSQVARNA
TC 85
‘14-15
421-4023
Std.
$269.95 421-K048
$64.95
TC 125
‘14-15
421-4024
Std.
335.95 421-K065
64.95
TC 250
‘14-15
421-4026
Std.
335.95 421-K066
64.95
TE 250/300
‘14
421-4028
Std.
335.95 421-K066
64.95
FC 250
‘14-15
421-4402
Std.
495.95 421-K085
129.95
FC 350
‘15
421-4402
Std.
495.95 421-K085
129.95
KAWASAKI
KX60
‘86-03
421-4015
Std.
$199.95 421-K004
$44.95
KX65
‘00-05
421-4014
Std.
191.95 421-K004
44.95
‘06-17
421-4065
Std.
204.95 421-K004
44.95
KX80/85
‘91-05
421-4016
Std.
179.95 421-K004
44.95
KX85/100
‘06-13
421-4066
Std.
204.95 421-K004
44.95
421-4166
*
Stkr 2mm
220.95 421-K004
44.95
‘14-17
421-4419
Std.
219.95 421-K004
44.95
421-4519
**
Stkr 4mm
319.95 421-K004
44.95
KX100
‘95-05
421-4016
Std.
179.95 421-K004
44.95
KX125
‘03-05
421-4055
Std.
229.95 421-K235
42.95
KDX200
‘89-06
421-K238
44.95
KDX220
‘97-05
421-K238
44.95
KX250
‘80-86
421-K226
72.95
Continued on the next page
Stroker cranks are designed
exclusively for closed
course competition use
ONLY. Use on public lands
or highways in the state of
California is illegal.
ENGINE