Skip to content
OEM & Performance ATV, UTV & Dirt Bike Parts for Yamaha, Honda, Polaris, Can-Am & More — Shipped Fast from BPRATV
OEM & Performance ATV, UTV & Dirt Bike Parts for Yamaha, Honda, Polaris, Can-Am & More — Shipped Fast from BPRATV

Honda TRX400EX

Honda 400EX Rebuild Kits, Pistons, and Parts

Filters

$
$
Save 11% Save %
$436.78
$436.78 - $436.78
$436.78
$388.88
$388.88 - $388.88
$388.88

Honda TRX 400X 400EX XR 400R Cylinder Top End Rebuild Kit 10.5 JE Piston Gaskets

JE Pistons
Low stock

379165, 1043-2, M2002, M2003, M2001,4606M08700,12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 30-33750, 13011-KCY-670, 90601-KA5-000, 13...

View full details
$436.78
$436.78 - $436.78
$436.78
$388.88
$388.88 - $388.88
$388.88
Save 11% Save %
Save 30% Save %
$605.79
$605.79 - $605.79
$605.79
$424.44
$424.44 - $424.44
$424.44

TRX400EX 400EX 400X 89mm 10.8 440cc JE Piston Cometic Gasket Top End Rebuild Kit

JE Pistons
Low stock

247612, 4667M08900, 4794M08900,1043-2, M2002, M2003, M2001,4606M08700,12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 30-33750, 13011-KCY...

View full details
$605.79
$605.79 - $605.79
$605.79
$424.44
$424.44 - $424.44
$424.44
Save 30% Save %
Save 30% Save %
$605.79
$605.79 - $605.79
$605.79
$424.44
$424.44 - $424.44
$424.44

Honda TRX 400EX 400X Big Bore Top End Rebuild Kit 89mm Cylinder JE Piston Gasket

JE Pistons
Low stock

247612, 4667M08900, 4794M08900,1043-2, M2002, M2003, M2001,4606M08700,12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 30-33750, 13011-KCY...

View full details
$605.79
$605.79 - $605.79
$605.79
$424.44
$424.44 - $424.44
$424.44
Save 30% Save %
Save 28% Save %
$605.79
$605.79 - $605.79
$605.79
$434.44
$434.44 - $434.44
$434.44

Honda TRX 400EX Big Bore Top End Rebuild Kit 89mm +4 Cylinder 11:1 JE Piston Kit

JE Pistons
Low stock

247612, 4667M08900, 4794M08900,1043-2, M2002, M2003, M2001,4606M08700,12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 30-33750, 13011-KCY...

View full details
$605.79
$605.79 - $605.79
$605.79
$434.44
$434.44 - $434.44
$434.44
Save 28% Save %
Save 28% Save %
$605.79
$605.79 - $605.79
$605.79
$434.44
$434.44 - $434.44
$434.44

TRX400EX 400EX 400X XR400 89mm 89mil 11:1 440cc JE Cometic Cylinder Big Bore Kit

JE Pistons
Low stock

247612, 4667M08900, 4794M08900,1043-2, M2002, M2003, M2001,4606M08700,12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 30-33750, 13011-KCY...

View full details
$605.79
$605.79 - $605.79
$605.79
$434.44
$434.44 - $434.44
$434.44
Save 28% Save %
Save 28% Save %
$605.79
$605.79 - $605.79
$605.79
$434.44
$434.44 - $434.44
$434.44

TRX 400EX 400X 89mm Big Bore Cylinder 11:1 JE Piston Cometic Top End Rebuild Kit

JE Pistons
Low stock

TRX 400EX 400X 89mm Big Bore Cylinder 11:1 JE Piston Cometic Top End Rebuild Kit TRX 400EX 400X 89mm Big Bore Cylinder 11:1 JE Piston Cometic To...

View full details
$605.79
$605.79 - $605.79
$605.79
$434.44
$434.44 - $434.44
$434.44
Save 28% Save %
Save 13% Save %
$459.99
$459.99 - $459.99
$459.99
$398.88
$398.88 - $398.88
$398.88

TRX400EX 400EX 400X XR400 87mm 87mil 10.8 416cc JE Cometic Cylinder Big Bore Kit

JE Pistons
Low stock

1043-2, M2002, M2003, M2001,4606M08700,12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 30-33750, 13011-KCY-670, 90601-KA5-000, 13103-KCY-...

View full details
$459.99
$459.99 - $459.99
$459.99
$398.88
$398.88 - $398.88
$398.88
Save 13% Save %
Save 23% Save %
$636.97
$636.97 - $636.97
$636.97
$489.98
$489.98 - $489.98
$489.98

TRX400EX TRX 400EX 89mm 440cc Big Bore Race Gas Hi-Comp 12.5 Piston Top End Kit

BPRATV
Low stock

Upgrade your Honda TRX400EX with a complete 440cc big bore kit featuring an 89mm cylinder, forged 12.5:1 piston, Cometic gaskets, titanium studs, a...

View full details
$636.97
$636.97 - $636.97
$636.97
$489.98
$489.98 - $489.98
$489.98
Save 23% Save %
Sold out
$765.20
$765.20 - $765.20
$765.20
$688.89
$688.89 - $688.89
$688.89

TRX 400EX 400X Stock Bore Cylinder 85 mil Piston Top End Rebuild Stage 1 Hotcams

BPRATV
Out of stock

1007-1, M2008, M2003, M2001,4606M08700,12100-KCY-670, 4606M08500, 1043-2,C7826, 71016-4, 12191-KCY-673, 30-33750, 13011-KCY-670, 90601-KA5-000, 131...

View full details
$765.20
$765.20 - $765.20
$765.20
$688.89
$688.89 - $688.89
$688.89
Sold out
Save 27% Save %
$1,019.99
$1,019.99 - $1,019.99
$1,019.99
$744.44
$744.44 - $744.44
$744.44

99-04 Honda 400EX 89mm Big Bore Cylinder Crank Wiseco Piston Engine Rebuild Kit

BPRATV
Low stock

WPC131A, 4667M08900, CBK0080, C7826, K014, B5047,4040, K014, B5047,4040, C7825, 808894, 822278, 4040, CBK0016, C7826, 12100-KCY-670, 4606M08500, C7...

View full details
$1,019.99
$1,019.99 - $1,019.99
$1,019.99
$744.44
$744.44 - $744.44
$744.44
Save 27% Save %
Save 31% Save %
$1,009.99
$1,009.99 - $1,009.99
$1,009.99
$699.98
$699.98 - $699.98
$699.98

TRX 400EX 88mm +3 Big Bore Cylinder Crank Wiseco Piston Engine Rebuild Kit 99-04

Wiseco
In stock

WPC131A, 4606M08800, CBK0080, C7826, K014, B5047,4040, K014, B5047,4040, C7825, 808894, 822278, 4040, CBK0016, C7826, 12100-KCY-670, 4606M08500, C7...

View full details
$1,009.99
$1,009.99 - $1,009.99
$1,009.99
$699.98
$699.98 - $699.98
$699.98
Save 31% Save %
Save 31% Save %
$1,009.99
$1,009.99 - $1,009.99
$1,009.99
$699.98
$699.98 - $699.98
$699.98

99-04 Honda TRX400EX 88mm 426 Big Bore Cylinder Wiseco Piston Engine Rebuild Kit

BPRATV
In stock

WPC131A, 4606M08800, CBK0080, C7826, K014, B5047,4040, K014, B5047,4040, C7825, 808894, 822278, 4040, CBK0016, C7826, 12100-KCY-670, 4606M08500, C7...

View full details
$1,009.99
$1,009.99 - $1,009.99
$1,009.99
$699.98
$699.98 - $699.98
$699.98
Save 31% Save %
Sold out
$999.99
$999.99 - $999.99
$999.99
$648.88
$648.88 - $648.88
$648.88

05+ Honda TRX400EX 85mm OEM Bore Cylinder Crank Wiseco Piston Engine Rebuild Kit

Wiseco
Out of stock

WPC131B, 4606M08500, C7825, K014, B5047,4040, C7825, 808894, 822278, 4040, CBK0016, C7826, 12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673...

View full details
$999.99
$999.99 - $999.99
$999.99
$648.88
$648.88 - $648.88
$648.88
Sold out
Sold out
$999.99
$999.99 - $999.99
$999.99
$648.88
$648.88 - $648.88
$648.88

TRX 400EX 400X 85mm OEM Bore Cylinder Crank Wiseco Piston Engine Rebuild Kit 05+

Wiseco
Out of stock

WPC131B, 4606M08500, C7825, K014, B5047,4040, C7825, 808894, 822278, 4040, CBK0016, C7826, 12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673...

View full details
$999.99
$999.99 - $999.99
$999.99
$648.88
$648.88 - $648.88
$648.88
Sold out
Sold out
$999.99
$999.99 - $999.99
$999.99
$648.88
$648.88 - $648.88
$648.88

05+ Honda 400EX 400X 85mm Stock Bore Cylinder & Wiseco Piston Engine Rebuild Kit

Wiseco
Out of stock

WPC131B, 4606M08500, C7825, K014, B5047,4040, C7825, 808894, 822278, 4040, CBK0016, C7826, 12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673...

View full details
$999.99
$999.99 - $999.99
$999.99
$648.88
$648.88 - $648.88
$648.88
Sold out
Save 27% Save %
$1,019.99
$1,019.99 - $1,019.99
$1,019.99
$744.44
$744.44 - $744.44
$744.44

05+ Honda 400EX 400X 89mm 440 Big Bore Cylinder Wiseco Piston Engine Rebuild Kit

Wiseco
Low stock

WPC131B, 4667M08900, C7826, K014, B5047,4040, C7825, 808894, 822278, 4040, CBK0016, C7826, 12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673...

View full details
$1,019.99
$1,019.99 - $1,019.99
$1,019.99
$744.44
$744.44 - $744.44
$744.44
Save 27% Save %
Save 27% Save %
$1,019.99
$1,019.99 - $1,019.99
$1,019.99
$744.44
$744.44 - $744.44
$744.44

05+ Honda TRX400EX 89mm Big Bore Cylinder Crank Wiseco Piston Engine Rebuild Kit

Wiseco
Low stock

WPC131B, 4667M08900, C7826, K014, B5047,4040, C7825, 808894, 822278, 4040, CBK0016, C7826, 12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673...

View full details
$1,019.99
$1,019.99 - $1,019.99
$1,019.99
$744.44
$744.44 - $744.44
$744.44
Save 27% Save %
Save 27% Save %
$1,019.99
$1,019.99 - $1,019.99
$1,019.99
$744.44
$744.44 - $744.44
$744.44

TRX 400EX 400X 89mm Big Bore Cylinder Crank Wiseco Piston Engine Rebuild Kit 05+

Wiseco
Low stock

WPC131B, 4667M08900, C7826, K014, B5047,4040, C7825, 808894, 822278, 4040, CBK0016, C7826, 12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673...

View full details
$1,019.99
$1,019.99 - $1,019.99
$1,019.99
$744.44
$744.44 - $744.44
$744.44
Save 27% Save %
Save 29% Save %
$1,009.99
$1,009.99 - $1,009.99
$1,009.99
$719.98
$719.98 - $719.98
$719.98

TRX 400EX 400X 88mm Big Bore Cylinder Crank Wiseco Piston Engine Rebuild Kit 05+

Wiseco
Low stock

WPC131B, 4606M08800, C7826, K014, B5047,4040, C7825, 808894, 822278, 4040, CBK0016, C7826, 12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673...

View full details
$1,009.99
$1,009.99 - $1,009.99
$1,009.99
$719.98
$719.98 - $719.98
$719.98
Save 29% Save %
Save 29% Save %
$1,009.99
$1,009.99 - $1,009.99
$1,009.99
$719.98
$719.98 - $719.98
$719.98

05+ Honda TRX400EX 88mm Big Bore Cylinder Crank Wiseco Piston Engine Rebuild Kit

Wiseco
Low stock

WPC131B, 4606M08800, C7826, K014, B5047,4040, C7825, 808894, 822278, 4040, CBK0016, C7826, 12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673...

View full details
$1,009.99
$1,009.99 - $1,009.99
$1,009.99
$719.98
$719.98 - $719.98
$719.98
Save 29% Save %
Save 29% Save %
$1,009.99
$1,009.99 - $1,009.99
$1,009.99
$719.98
$719.98 - $719.98
$719.98

05+ Honda 400EX 400X 88mm 426 Big Bore Cylinder Wiseco Piston Engine Rebuild Kit

Wiseco
Low stock

WPC131B, 4606M08800, C7826, K014, B5047,4040, C7825, 808894, 822278, 4040, CBK0016, C7826, 12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673...

View full details
$1,009.99
$1,009.99 - $1,009.99
$1,009.99
$719.98
$719.98 - $719.98
$719.98
Save 29% Save %
Save 31% Save %
$1,009.99
$1,009.99 - $1,009.99
$1,009.99
$699.98
$699.98 - $699.98
$699.98

TRX 400EX 400X 87mm Big Bore Cylinder Crank Wiseco Piston Engine Rebuild Kit 05+

Wiseco
Low stock

WPC131B, 4606M08700, C7826, K014, B5047,4040, C7825, 808894, 822278, 4040, CBK0016, C7826, 12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673...

View full details
$1,009.99
$1,009.99 - $1,009.99
$1,009.99
$699.98
$699.98 - $699.98
$699.98
Save 31% Save %
Save 31% Save %
$1,009.99
$1,009.99 - $1,009.99
$1,009.99
$699.98
$699.98 - $699.98
$699.98

05+ Honda TRX400EX 87mm Big Bore Cylinder Crank Wiseco Piston Engine Rebuild Kit

Wiseco
Low stock

WPC131B, 4606M08700, C7826, K014, B5047,4040, C7825, 808894, 822278, 4040, CBK0016, C7826, 12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673...

View full details
$1,009.99
$1,009.99 - $1,009.99
$1,009.99
$699.98
$699.98 - $699.98
$699.98
Save 31% Save %
Save 31% Save %
$1,009.99
$1,009.99 - $1,009.99
$1,009.99
$699.98
$699.98 - $699.98
$699.98

05+ Honda 400EX 400X 87mm 416 Big Bore Cylinder Wiseco Piston Engine Rebuild Kit

Wiseco
Low stock

WPC131B, 4606M08700, C7826, K014, B5047,4040, C7825, 808894, 822278, 4040, CBK0016, C7826, 12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673...

View full details
$1,009.99
$1,009.99 - $1,009.99
$1,009.99
$699.98
$699.98 - $699.98
$699.98
Save 31% Save %
$386.78 - $386.78
$386.78
$388.88
$388.88 - $388.88
$388.88

Honda 400X 400EX XR 400R Top End Cylinder Top Rebuild Kit 10.5 JE Piston Gaskets

BPRATV
Low stock

1043-2, M2002, M2003, M2001,4606M08700,12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 30-33750, 13011-KCY-670, 90601-KA5-000, 13103-KCY-...

View full details
$386.78 - $386.78
$386.78
$388.88
$388.88 - $388.88
$388.88
$386.78 - $386.78
$386.78
$388.88
$388.88 - $388.88
$388.88

TRX400EX 400EX 400X 85mm Bore Cylinder JE Piston Cometic Gaskets Top Rebuild Kit

BPRATV
Low stock

1043-2, M2002, M2003, M2001,4606M08700,12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 30-33750, 13011-KCY-670, 90601-KA5-000, 13103-KCY-...

View full details
$386.78 - $386.78
$386.78
$388.88
$388.88 - $388.88
$388.88
Save 30% Save %
$605.79
$605.79 - $605.79
$605.79
$424.44
$424.44 - $424.44
$424.44

TRX400EX 400X 89mm Big Bore Cylinder 10.8 JE Piston Cometic Top End Rebuild Kit

BPRATV
Low stock

1043-2, M2002, M2003, M2001,4606M08700,12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 30-33750, 13011-KCY-670, 90601-KA5-000, 13103-KCY-...

View full details
$605.79
$605.79 - $605.79
$605.79
$424.44
$424.44 - $424.44
$424.44
Save 30% Save %
Sold out
$461.99
$461.99 - $461.99
$461.99
$338.88
$338.88 - $338.88
$338.88

TRX 400EX 400X XR400 Stock Bore Cylinder 85mm Rebuilt Top End Rebuild Kit Parts

BPRATV
Out of stock

M2002,4606M08500,12100-KCY-670, 4606M08500, C7825, 71016-4, 12191-KCY-673, 30-33750, 13011-KCY-670, 90601-KA5-000, 13103-KCY-670, 13111-KCY-670, 12...

View full details
$461.99
$461.99 - $461.99
$461.99
$338.88
$338.88 - $338.88
$338.88
Sold out
Save 16% Save %
$334.75
$334.75 - $334.75
$334.75
$279.98
$279.98 - $279.98
$279.98

Honda TRX 400EX XR400R 400X 87mm 415cc CP Carrillo CP Piston Kit 12.5:1 CR M2008

CP-Carrillo
Low stock

M2008, 3465XC, 4606M08800, 4628M08800, XC8800, 177240, 8604D300, 90601-KA5-000, 13103-KCY-670, 13111-KCY-670, 12251-HN1-003, 12209-KL4-005, 810829,...

View full details
$334.75
$334.75 - $334.75
$334.75
$279.98
$279.98 - $279.98
$279.98
Save 16% Save %
Sold out
$1,684.22
$1,684.22 - $1,684.22
$1,684.22
$999.98
$999.98 - $999.98
$999.98

Honda TRX 400EX Assembled Cylinder Head Stage 3 Hot Cams Chain Big Bore Cometic

BPRATV
Out of stock

14711-KCY-670, 14721-KCY-670 14411-KCY-670, 14431-KCY-670, 14445-KF0-000 14446-KF0-000, 14751-KCY-670, 14761-KG0-003 14451-MBV-000, 14781-HA0-770, ...

View full details
$1,684.22
$1,684.22 - $1,684.22
$1,684.22
$999.98
$999.98 - $999.98
$999.98
Sold out
Sold out
$1,684.22
$1,684.22 - $1,684.22
$1,684.22
$999.98
$999.98 - $999.98
$999.98

400EX 400X XR400R Assembled Cylinder Head Stage 2 Hot Cams Chain Cometic Gasket

BPRATV
Out of stock

14711-KCY-670, 14721-KCY-670 14411-KCY-670, 14431-KCY-670, 14445-KF0-000 14446-KF0-000, 14751-KCY-670, 14761-KG0-003 14451-MBV-000, 14781-HA0-770, ...

View full details
$1,684.22
$1,684.22 - $1,684.22
$1,684.22
$999.98
$999.98 - $999.98
$999.98
Sold out
Sold out
$1,684.22
$1,684.22 - $1,684.22
$1,684.22
$999.98
$999.98 - $999.98
$999.98

400EX 400X XR400R Cylinder Head Stage 2 Hot Cams Chain & Cometic Top End Gasket

BPRATV
Out of stock

14711-KCY-670, 14721-KCY-670 14411-KCY-670, 14431-KCY-670, 14445-KF0-000 14446-KF0-000, 14751-KCY-670, 14761-KG0-003 14451-MBV-000, 14781-HA0-770, ...

View full details
$1,684.22
$1,684.22 - $1,684.22
$1,684.22
$999.98
$999.98 - $999.98
$999.98
Sold out
Sold out
$1,684.22
$1,684.22 - $1,684.22
$1,684.22
$999.98
$999.98 - $999.98
$999.98

Honda TRX 400EX Assembled Cylinder Head Stage 2 Hot Cams Chain 87 88 89 Cometic

BPRATV
Out of stock

14711-KCY-670, 14721-KCY-670 14411-KCY-670, 14431-KCY-670, 14445-KF0-000 14446-KF0-000, 14751-KCY-670, 14761-KG0-003 14451-MBV-000, 14781-HA0-770, ...

View full details
$1,684.22
$1,684.22 - $1,684.22
$1,684.22
$999.98
$999.98 - $999.98
$999.98
Sold out
Sold out
$1,684.22
$1,684.22 - $1,684.22
$1,684.22
$999.98
$999.98 - $999.98
$999.98

400EX 400X XR400R Cylinder Head Stage 2 Hot Cams Chain & Big Bore Cometic Gasket

BPRATV
Out of stock

14711-KCY-670, 14721-KCY-670 14411-KCY-670, 14431-KCY-670, 14445-KF0-000 14446-KF0-000, 14751-KCY-670, 14761-KG0-003 14451-MBV-000, 14781-HA0-770, ...

View full details
$1,684.22
$1,684.22 - $1,684.22
$1,684.22
$999.98
$999.98 - $999.98
$999.98
Sold out
Sold out
$1,702.53
$1,702.53 - $1,702.53
$1,702.53
$999.98
$999.98 - $999.98
$999.98

TRX400EX 400EX Cylinder Head Stage 2 Hot Cams WISECO Chain Stock Cometic Gasket

BPRATV
Out of stock

14711-KCY-670, 14721-KCY-670 14411-KCY-670, 14431-KCY-670, 14445-KF0-000 14446-KF0-000, 14751-KCY-670, 14761-KG0-003 14451-MBV-000, 14781-HA0-770, ...

View full details
$1,702.53
$1,702.53 - $1,702.53
$1,702.53
$999.98
$999.98 - $999.98
$999.98
Sold out
Sold out
$1,702.53
$1,702.53 - $1,702.53
$1,702.53
$999.98
$999.98 - $999.98
$999.98

400EX 400X XR400R Cylinder Head Stage 2 Hot Cams WISECO Chain & 87 88 89 Cometic

BPRATV
Out of stock

14711-KCY-670, 14721-KCY-670 14411-KCY-670, 14431-KCY-670, 14445-KF0-000 14446-KF0-000, 14751-KCY-670, 14761-KG0-003 14451-MBV-000, 14781-HA0-770, ...

View full details
$1,702.53
$1,702.53 - $1,702.53
$1,702.53
$999.98
$999.98 - $999.98
$999.98
Sold out
Save 15% Save %
$1,419.99
$1,419.99 - $1,419.99
$1,419.99
$1,199.99
$1,199.99 - $1,199.99
$1,199.99

05+ Honda TRX 400EX 400X 89m Big Bore 4mm Stroker Complete 465 Motor Rebuild Kit

BPRATV
Low stock

4240,CBK0037,CBK0163,808894,TBK0012,K014, 12100-KCY-670, 4606M08500, C7826, 71016-412191-KCY-673, 13011-KCY-670, 90601-KA5-00013103-KCY-670, 13111-...

View full details
$1,419.99
$1,419.99 - $1,419.99
$1,419.99
$1,199.99
$1,199.99 - $1,199.99
$1,199.99
Save 15% Save %
$592.76 - $592.76
$592.76
$592.76 - $592.76
$592.76

Honda TRX400EX Stroker Crank Bearings Hot Rods 4 mil +4mm Crankshaft Rod Bearing

Honda 400EX 400X Hotrods Hot Rods BPRATV
Low stock

4240.13000-HN1-000,13000-MBV-730,CBK0037,91001-KF0-018WORKS ON ALL HONDA 400EX AND 400X MODELS AND YEARS!!Hot Rods Part# 4240Hot Rods +4mm stroker ...

View full details
$592.76 - $592.76
$592.76
$592.76 - $592.76
$592.76
Sold out
$305.44
$305.44 - $305.44
$305.44
$229.98
$229.98 - $229.98
$229.98

Honda 400EX XR 400X Wiseco 88mm BIG BORE 11:1 Piston COMETIC Top End Gasket Kit

Wiseco
Out of stock

Honda TRX 400EX 426cc Wiseco 88mm Big Bore 11:1 Compression Piston & Cometic Top End Gasket KitFits Honda TRX 400EX & 400XYears 1999 2000 2...

View full details
$305.44
$305.44 - $305.44
$305.44
$229.98
$229.98 - $229.98
$229.98
Sold out
$592.76 - $592.76
$592.76
$592.76 - $592.76
$592.76

TRX 400EX 400X Stroker Crank Hotrods 4mm Stroke Crankshaft & Main Crank Bearings

Honda 400EX 400X Hotrods Hot Rods BPRATV
Low stock

4240.13000-HN1-000,13000-MBV-730,CBK0037,91001-KF0-018WORKS ON ALL HONDA 400EX AND 400X MODELS AND YEARS!!Hot Rods Part# 4240Hot Rods +4mm stroker ...

View full details
$592.76 - $592.76
$592.76
$592.76 - $592.76
$592.76
Save 5% Save %
$615.95
$615.95 - $615.95
$615.95
$583.91
$583.91 - $583.91
$583.91

99-04 Honda TRX400EX Hot Rods Bottom End Kit Crank Rod Gaskets Rebuild Kit Set

BPRATV
Low stock

13000-MBV-730, 4040, 808829, 822139, K014, Hot Rods Wiseco, WPC131A,12191-KCY-673, 13011-KCY-670, 90601-KA5-000,13103-KCY-670, 13111-KCY-670, 12251...

View full details
$615.95
$615.95 - $615.95
$615.95
$583.91
$583.91 - $583.91
$583.91
Save 5% Save %
Save 16% Save %
$499.99
$499.99 - $499.99
$499.99
$418.88
$418.88 - $418.88
$418.88

TRX 400EX TRX400EX 400X 88mm 88 426cc Big Bore Cylinder 11:1 Top End Rebuild Kit

BPRATV
In stock

1043-2, M2008, M2003, M2001,4606M08700,12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 30-33750, 13011-KCY-670, 90601-KA5-000, 13103-KCY-...

View full details
$499.99
$499.99 - $499.99
$499.99
$418.88
$418.88 - $418.88
$418.88
Save 16% Save %
Save 10% Save %
$133.78
$133.78 - $133.78
$133.78
$119.89
$119.89 - $119.89
$119.89

Honda TRX400EX TRX 400EX ProX Pro X Head Rebuild Intake Exhaust Valves KPMI Seal

Pro-X
Low stock

28.1495-2, 28.1495-1,14711-KCY-670,14721-KCY-670,12209-KL4-005,30-3115,30-3117,8400003-2, 8400003-1,VES003,VIS003,X2VEK16000,X2VIK16000Is your Hond...

View full details
$133.78
$133.78 - $133.78
$133.78
$119.89
$119.89 - $119.89
$119.89
Save 10% Save %
Save 10% Save %
$133.78
$133.78 - $133.78
$133.78
$119.89
$119.89 - $119.89
$119.89

400EX 400X XR400 ProX Pro X Valves Kibblewhite Red Stem Seals Intake Exhaust Kit

Pro-X
Low stock

28.1495-2, 28.1495-1,14711-KCY-670,14721-KCY-670,12209-KL4-005,30-3115,30-3117,8400003-2, 8400003-1,VES003,VIS003,X2VEK16000,X2VIK16000Is your Hond...

View full details
$133.78
$133.78 - $133.78
$133.78
$119.89
$119.89 - $119.89
$119.89
Save 10% Save %
Save 21% Save %
$1,017.88
$1,017.88 - $1,017.88
$1,017.88
$802.33
$802.33 - $802.33
$802.33

Cylinder 12.5:1 CP Piston Gasket Stage 2 Cam Top Rebuild Kit For Honda TRX400EX

BPRATV
Low stock

1043-2,M2008, M2001,4606M08700,12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 30-33750, 13011-KCY-670, 90601-KA5-000, 13103-KCY-670, 131...

View full details
$1,017.88
$1,017.88 - $1,017.88
$1,017.88
$802.33
$802.33 - $802.33
$802.33
Save 21% Save %
Save 13% Save %
$1,017.88
$1,017.88 - $1,017.88
$1,017.88
$888.88
$888.88 - $888.88
$888.88

BPRATV TRX400EX 400EX 85mm CP 10:1 Pump Gas Stock Cylinder Stage 2 Hot Cams Kit

BPRATV
Low stock

1043-2, M2002, M2003, M2001,4606M08700,12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 30-33750, 13011-KCY-670, 90601-KA5-000, 13103-KCY-...

View full details
$1,017.88
$1,017.88 - $1,017.88
$1,017.88
$888.88
$888.88 - $888.88
$888.88
Save 13% Save %
Save 13% Save %
$1,017.88
$1,017.88 - $1,017.88
$1,017.88
$888.88
$888.88 - $888.88
$888.88

Honda 400EX XR400 85mm CP Carrillo 10:1 Pump Piston Cylinder Stage 2 Hot Cam Kit

BPRATV
Low stock

Honda 400EX XR400 85mm CP Carrillo 10:1 Pump Piston Cylinder Stage 2 Hot Cam Kit ...

View full details
$1,017.88
$1,017.88 - $1,017.88
$1,017.88
$888.88
$888.88 - $888.88
$888.88
Save 13% Save %
Save 6% Save %
$834.95
$834.95 - $834.95
$834.95
$788.88
$788.88 - $788.88
$788.88

99-14 Honda 400EX 400 EX Top End Cylinder Kit 10:1 CP Piston Stage 1 Hotcams Cam

BPRATV
Low stock

1043-2, M2002, M2003, M2001,4606M08700,12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 30-33750, 13011-KCY-670, 90601-KA5-000, 13103-KCY-...

View full details
$834.95
$834.95 - $834.95
$834.95
$788.88
$788.88 - $788.88
$788.88
Save 6% Save %

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare