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 31% Save %
$603.90
$603.90 - $603.90
$603.90
$415.76
$415.76 - $415.76
$415.76

TRX 400EX XR 400X Crank Bearings Hotrods Replacement Crankshaft Main Bearing Kit

BPRATV
In stock

Hot Rods Crank, 4040, 13000-MBV-730,4040,K014,91001-KF0-018,13000MBV730,91001KF0018Premium Hot Rods Crankshaft & SKF Main Bearing Kit for Honda...

View full details
$603.90
$603.90 - $603.90
$603.90
$415.76
$415.76 - $415.76
$415.76
Save 31% Save %
Sold out
$257.75
$257.75 - $257.75
$257.75
$184.88
$184.88 - $184.88
$184.88

Honda TRX 400EX 400X 85mm Stock Bore 10:1 Piston Cometic MLS Top End Gasket Kit

Wiseco
Out of stock

12100-KCY-670, 4606M08500, C7825, 12191-KCY-673, 13011-KCY-670, 90601-KA5-000, 13103-KCY-670, 13111-KCY-670, 12251-HN1-003, PK1031Brand New Wiseco ...

View full details
$257.75
$257.75 - $257.75
$257.75
$184.88
$184.88 - $184.88
$184.88
Sold out
Save 21% Save %
$529.00
$529.00 - $529.00
$529.00
$417.77
$417.77 - $417.77
$417.77

Honda XR400R XR 400EX 89mm 89 440cc Big Bore Top End Rebuild Kit Cylinder Wiseco

BPRATV
In stock

4667M08900, 8604D400, 247612, M2033, 1043-2, M2008, M2003, M2001,4606M08700,12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 30-33750, 130...

View full details
$529.00
$529.00 - $529.00
$529.00
$417.77
$417.77 - $417.77
$417.77
Save 21% Save %
Sold out
$615.95
$615.95 - $615.95
$615.95
$583.91
$583.91 - $583.91
$583.91

99-04 Honda 400EX 400X Hot Rods Bottom End Crank Rod Rebuild Kit Gaskets Seals

Hot Rods
Out of 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
Sold out
$355.95 - $355.95
$355.95
$383.95
$383.95 - $383.95
$383.95

Honda TRX400EX 400X XR400 Hot Cams Stage 2 Two Camshaft Mid Top End Power Boost!

Hot Cams
Low stock

1043-2, 14000-HN1-A70, 14000-HN1-000, 1007-1, 1051-3, 1043-2, 14000-KCY-670, 14000-HN1-A70, 14401-KCY-671, 91002-MN1-671, 91003-KF0-008 💥 Honda T...

View full details
$355.95 - $355.95
$355.95
$383.95
$383.95 - $383.95
$383.95
Save 13% Save %
$999.99
$999.99 - $999.99
$999.99
$869.89
$869.89 - $869.89
$869.89

400EX 400X TRX400EX 87mm Big Bore Kit Stage 2 Hot Cams Camshaft Complete Top End

BPRATV
Low stock

3P-416, 4606M08700, 4628M08700, 8604D200, 133889, M2001, 71016-4, C7826, 1043-2, 91002--MN1-671, 12100-HN1-A70, 12191-KCY-672, 13011-KCY-670, 13101...

View full details
$999.99
$999.99 - $999.99
$999.99
$869.89
$869.89 - $869.89
$869.89
Save 13% Save %
Save 12% Save %
$480.78
$480.78 - $480.78
$480.78
$424.44
$424.44 - $424.44
$424.44

TRX 400EX 400X XR400 88mm Big Bore Cylinder 13:1 JE Piston & Gaskets Rebuild 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
$480.78
$480.78 - $480.78
$480.78
$424.44
$424.44 - $424.44
$424.44
Save 12% Save %
Save 27% Save %
$1,147.48
$1,147.48 - $1,147.48
$1,147.48
$840.12
$840.12 - $840.12
$840.12

Honda TRX400EX TRX 400EX Assembled Cylinder Head Camshaft Chain Kit Cam Bearings

BPRATV
In 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
$1,147.48
$1,147.48 - $1,147.48
$1,147.48
$840.12
$840.12 - $840.12
$840.12
Save 27% Save %
Sold out
$615.95
$615.95 - $615.95
$615.95
$583.91
$583.91 - $583.91
$583.91

99-04 Honda TRX400EX 400EX Hot Rods Hotrods Bottom End Rebuild Kit Crank Gaskets

Hot Rods
Out of 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
Sold out
Save 27% Save %
$99.99
$99.99 - $99.99
$99.99
$73.49
$73.49 - $73.49
$73.49

TRX 400EX 400X Crank Bearings SKF Aftermarket Crankshaft Main Bearing Left Right

SKF
In stock

Honda OEM 91001-KF0-018, K014, B5047, 23.CBS14096, TM-SC0692C3Bulletproof Your Honda 400EX/400X Crankshaft with SKF Crank BearingsFits All Honda TR...

View full details
$99.99
$99.99 - $99.99
$99.99
$73.49
$73.49 - $73.49
$73.49
Save 27% Save %
Save 34% Save %
$680.81
$680.81 - $680.81
$680.81
$448.89
$448.89 - $448.89
$448.89

TRX400EX 400EX 400X 89mm 89 mm 440cc CP Big Bore Cylinder Top End Kit Head Studs

CP-Carrillo
In stock

M2033,4667M08900,12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 30-33750, 13011-KCY-670, 90601-KA5-000, 13103-KCY-670, 13111-KCY-670, 12...

View full details
$680.81
$680.81 - $680.81
$680.81
$448.89
$448.89 - $448.89
$448.89
Save 34% Save %
Save 40% Save %
$374.99
$374.99 - $374.99
$374.99
$223.41
$223.41 - $223.41
$223.41

Honda TRX400EX TRX 400EX Kibblewhite Head Fix +1mm Intake Exhaust Valves Springs

Kibblewhite Precision
In stock

Best Honda TRX 400EX Kibblewhite Valves Spring Kit On Sale, 30-3111, 30-3116, 30-3118, 71016-4, 71016, 12209-413-003, 14711-KCY-670, 14721-KCY-670,...

View full details
$374.99
$374.99 - $374.99
$374.99
$223.41
$223.41 - $223.41
$223.41
Save 40% Save %
Save 28% Save %
$51.46
$51.46 - $51.46
$51.46
$36.89
$36.89 - $36.89
$36.89

Honda 400EX XR400 89mm 440cc Big Bore Wiseco Piston Replacement Rings Set 3504XC

Wiseco
In stock

Honda 400EX / 400X / XR400 89mm Wiseco Big Bore Piston Replacement Rings KitPart# 3504XCThese rings are for Wiseco Piston Part #'s 4667M08900 &...

View full details
$51.46
$51.46 - $51.46
$51.46
$36.89
$36.89 - $36.89
$36.89
Save 28% Save %
Save 28% Save %
$51.46
$51.46 - $51.46
$51.46
$36.99
$36.99 - $36.99
$36.99

Honda 400EX XR400 85mm 85 Stock Bore Wiseco Piston Replacement Rings Set 3347XC

Wiseco
In stock

Honda 400EX / 400X / XR400 85mm Wiseco Piston Replacement Rings KitPart# XC8500 / 3347XCFITS ONLY Wiseco Piston Part #'s 4606M08500, 4628M08500, 42...

View full details
$51.46
$51.46 - $51.46
$51.46
$36.99
$36.99 - $36.99
$36.99
Save 28% Save %
Sold out
$276.00
$276.00 - $276.00
$276.00
$186.97
$186.97 - $186.97
$186.97

TRX400EX TRX 400EX XR400 Wiseco 88 mil 88mm Piston +3 Big Bore 426 4606M08800

Wiseco
Out of stock

FITS ALL HONDA TRX400EX, 400X MODELS AND YEARS Includes one 88mm 10:1 Wiseco piston with rings, pin, and clips for all 400EX/X/XR models and years...

View full details
$276.00
$276.00 - $276.00
$276.00
$186.97
$186.97 - $186.97
$186.97
Sold out
Save 29% Save %
$124.99
$124.99 - $124.99
$124.99
$88.88
$88.88 - $88.88
$88.88

TRX 400EX 400X XR400 Ti Cylinder Case Studs 90085-KCY-670 TITANIUM Stud Bolt Kit

BPRATV
Low stock

BPRATV - The Original Trailblazer for Titanium Hardware in the ATV Industry. FITS ALL HONDA TRX400EX, 400X, AND XR400R MODELS AND YEARSTHESE STUDS ...

View full details
$124.99
$124.99 - $124.99
$124.99
$88.88
$88.88 - $88.88
$88.88
Save 29% Save %
Save 14% Save %
$725.00
$725.00 - $725.00
$725.00
$625.00
$625.00 - $625.00
$625.00

TRX 400EX 400X Assembled Head Assembly Complete Std Valve Springs Rocker Arms

BPRATV
In stock

FITS ALL XR400R TRX400EX and TRX400X MODELS New aftermarket cylinder head and valve cover Valve springs, retainers, and collars Standard replaceme...

View full details
$725.00
$725.00 - $725.00
$725.00
$625.00
$625.00 - $625.00
$625.00
Save 14% Save %
Save 11% Save %
$992.49
$992.49 - $992.49
$992.49
$887.49
$887.49 - $887.49
$887.49

TRX 400EX 400X Assembled Head Complete Assembly Valves Rockers Stage 2 Hotcam

BPRATV
In stock

FITS ALL HONDA 400EX 400X XR400R MODELS AND YEARS All parts are aftermarket Cylinder head assembly Valve cover assembly Valves, springs, rocker ar...

View full details
$992.49
$992.49 - $992.49
$992.49
$887.49
$887.49 - $887.49
$887.49
Save 11% Save %
Save 30% Save %
$999.99
$999.99 - $999.99
$999.99
$699.98
$699.98 - $699.98
$699.98

TRX 400EX 400X Assembled Head Assembly Complete Valves Valve Cover Spring Rocker

BPRATV
In stock

30-3111, 30-3115, 30-3117, 14411-KCY-670, 14421-KCY-670, 14431-KCY-670, 14445-KF0-000, 14446-KF0-000, 14447-KF0-000, 14451-MBV-000, 14455-KCY-670, ...

View full details
$999.99
$999.99 - $999.99
$999.99
$699.98
$699.98 - $699.98
$699.98
Save 30% Save %
Save 13% Save %
$799.99
$799.99 - $799.99
$799.99
$699.99
$699.99 - $699.99
$699.99

Honda TRX 400EX 400X 87mm Big Bore Kit +2 Cylinder Head Assembly Top End Repair

BPRATV
In stock

FITS ALL HONDA TRX400EX, 400X MODELS AND YEARS Genuine BPR aftermarket cylinder head Cylinder head valve cover 87mm cylinder Wiseco or Wossner 87...

View full details
$799.99
$799.99 - $799.99
$799.99
$699.99
$699.99 - $699.99
$699.99
Save 13% Save %
Save 15% Save %
$1,299.99
$1,299.99 - $1,299.99
$1,299.99
$1,098.88
$1,098.88 - $1,098.88
$1,098.88

400EX Ported Cylinder Head Porting Assembled +1 Valves Kibblewhite 1mm Valve Kit

BPRATV
In stock

Brand new aftermarket cylinder head and valve cover Full race port and polish - intake, exhaust, combustion chamber Valve guides cut Pocket port ...

View full details
$1,299.99
$1,299.99 - $1,299.99
$1,299.99
$1,098.88
$1,098.88 - $1,098.88
$1,098.88
Save 15% Save %
Save 14% Save %
$21.99
$21.99 - $21.99
$21.99
$18.99
$18.99 - $18.99
$18.99

99+ Honda TRX400EX TRX 400EX 400X Head Valve Stem Guide Seals RED Seals Set of 4

Kibblewhite Precision
In stock

Complete Set of Kibblewhite Hi-Temp RED Viton Valve Stem Seals (4)Fits Honda TRX 400EX, 400X and XR400 ALL YEARS!Better then OEM for Less $$$!!Repl...

View full details
$21.99
$21.99 - $21.99
$21.99
$18.99
$18.99 - $18.99
$18.99
Save 14% Save %
Save 21% Save %
$489.99
$489.99 - $489.99
$489.99
$388.88
$388.88 - $388.88
$388.88

Honda TRX 400EX 400X Top End Rebuild Kit 11:1 CP Piston Cometic Gaskets Cylinder

CP-Carrillo
Low stock

400EX-CYL85 M2002 400EX-TEG DPR8Z, 810894, M2003,12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 13011-KCY-670, 90601-KA5-000, 13103-KCY-...

View full details
$489.99
$489.99 - $489.99
$489.99
$388.88
$388.88 - $388.88
$388.88
Save 21% Save %
Save 30% Save %
$699.99
$699.99 - $699.99
$699.99
$489.98
$489.98 - $489.98
$489.98

TRX400EX TRX 400EX Big Bore 89m 440 Wiseco 12.5:1 Top End Rebuild Kit Head Studs

BPRATV
In 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
$699.99
$699.99 - $699.99
$699.99
$489.98
$489.98 - $489.98
$489.98
Save 30% Save %
Save 14% Save %
$299.99
$299.99 - $299.99
$299.99
$258.88
$258.88 - $258.88
$258.88

Honda TRX 400EX 400X Stock Bore Cylinder Camshaft 85mm Top End Rebuild Kit Parts

BPRATV
In stock

4606M08500, C7825, 1051-3, 12100-KCY-670, 71016-4,4667M08900, 1043-2, C7826, 1051-3, 12100-KCY-670, 71016-4, 13111-KCY-670, 4606M08500, C7826, 7101...

View full details
$299.99
$299.99 - $299.99
$299.99
$258.88
$258.88 - $258.88
$258.88
Save 14% Save %
Save 21% Save %
$529.00
$529.00 - $529.00
$529.00
$417.77
$417.77 - $417.77
$417.77

Honda XR400 XR 400EX 89mm 89 440 Big Bore Top End Rebuild Kit Cylinder Wiseco

BPRATV
In stock

4667M08900, 8604D400, 247612, M2033, 1043-2, M2008, M2003, M2001,4606M08700,12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 30-33750, 130...

View full details
$529.00
$529.00 - $529.00
$529.00
$417.77
$417.77 - $417.77
$417.77
Save 21% Save %
Save 7% Save %
$33.34
$33.34 - $33.34
$33.34
$30.88
$30.88 - $30.88
$30.88

Honda TRX400EX 400EX 87 88mm 89mm Big Bore Cometic MLS Head Gasket 12251-HN1-A41

Cometic Gaskets
In stock

Cometic MLS head gasket for Honda TRX400EX, TRX400X, XR400R big bore engines. Supports 87–89mm bores with race-proven sealing. Cometic Honda TRX...

View full details
$33.34
$33.34 - $33.34
$33.34
$30.88
$30.88 - $30.88
$30.88
Save 7% Save %
Sold out
$281.46
$281.46 - $281.46
$281.46
$208.89
$208.89 - $208.89
$208.89

Honda 400EX 400X Wiseco 85mm Stock Bore 11:1 Piston COMETIC Top End Gasket Kit

Wiseco
Out of stock

Wiseco 85mm Stock Bore 11:1 Compression Piston & Cometic Top End Gasket KitFits Honda TRX 400EX & 400XYears 1999 2000 2001 2002 2003 2004 2...

View full details
$281.46
$281.46 - $281.46
$281.46
$208.89
$208.89 - $208.89
$208.89
Sold out
Save 10% Save %
$79.95
$79.95 - $79.95
$79.95
$71.99
$71.99 - $71.99
$71.99

Wiseco OEM Extreme Heavy Duty Timing Cam Chain Honda TRX400EX TRX 400EX 400X JPN

Wiseco
In stock

HC82RH2010112,CC004,14401-KCY-671,31.1496,SCA0409SV112Wiseco, Direct OEM Replacement Cam Chain, XR400R ’96-04 / TRX400EX / X ’99-14 A critical comp...

View full details
$79.95
$79.95 - $79.95
$79.95
$71.99
$71.99 - $71.99
$71.99
Save 10% Save %
Save 17% Save %
$119.99
$119.99 - $119.99
$119.99
$99.98
$99.98 - $99.98
$99.98

99-14 TRX400EX TRX 400EX TITANIUM Cylinder Head Valve Cover Bolt Kit Cam Bolts

BPRATV Talon Titanium
In stock

BPRATV - The Original Trailblazer for Titanium Hardware in the ATV Industry. Fits Honda TRX 400EX 400X XR400 All Years!Race to the finish line with...

View full details
$119.99
$119.99 - $119.99
$119.99
$99.98
$99.98 - $99.98
$99.98
Save 17% Save %
Save 18% Save %
$151.99
$151.99 - $151.99
$151.99
$124.98
$124.98 - $124.98
$124.98

99-14 TRX400EX 400EX TITANIUM Cylinder Head Valve Cover Bolts & EXHAUST STUD KIT

BPRATV Talon Titanium
In stock

BPRATV - The Original Trailblazer for Titanium Hardware in the ATV Industry. Fits Honda TRX 400EX 400X XR400 All Years!Race to the finish line with...

View full details
$151.99
$151.99 - $151.99
$151.99
$124.98
$124.98 - $124.98
$124.98
Save 18% Save %
Save 20% Save %
$486.10
$486.10 - $486.10
$486.10
$388.88
$388.88 - $388.88
$388.88

Honda 400EX 400X Top End Rebuild Kit 85mm Stock Bore Cylinder JE CP Piston Studs

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
$486.10
$486.10 - $486.10
$486.10
$388.88
$388.88 - $388.88
$388.88
Save 20% Save %
Save 17% Save %
$579.99
$579.99 - $579.99
$579.99
$479.99
$479.99 - $479.99
$479.99

TRX 400EX 400X XR 416 Big Bore Kit 87 mil Cylinder +2 Complete Top End Rebuild

BPRATV
Low stock

Compatible Vehicles Submodel Year Make Model TRX400EX 2x4 2008 Honda Sportrax 400 TRX400EX 2x4 2007 Honda Sportrax 400 TRX400EX 2x4 200...

View full details
$579.99
$579.99 - $579.99
$579.99
$479.99
$479.99 - $479.99
$479.99
Save 17% Save %
Save 8% Save %
$599.99
$599.99 - $599.99
$599.99
$549.99
$549.99 - $549.99
$549.99

TRX 400X 400EX Stage 2 Hotcam Rocker Arms Valves TRULY COMPLETE Head Rebuild Kit

BPRATV
In stock

FITS ALL HONDA TRX400EX, 400X, AND XR400R MODELS AND YEARS - ALL OTHER KITS YOU SEE ARE MISSING IMPORTANT PARTS YOU MUST HAVE TO REBUILD YOUR HEAD....

View full details
$599.99
$599.99 - $599.99
$599.99
$549.99
$549.99 - $549.99
$549.99
Save 8% Save %
Save 23% Save %
$1,004.84
$1,004.84 - $1,004.84
$1,004.84
$769.89
$769.89 - $769.89
$769.89

TRX400EX TRX 400EX Big Bore Kit Stage 2 Hotcam 87mm +2 Cylinder Hotcams Camshaft

BPRATV
Low stock

Upgrade your Honda TRX400EX or TRX400X with the BPRATV 87mm Big Bore Kit and Hotcams Stage 2 Camshaft. Includes forged piston, titanium studs, and ...

View full details
$1,004.84
$1,004.84 - $1,004.84
$1,004.84
$769.89
$769.89 - $769.89
$769.89
Save 23% Save %
Save 21% Save %
$619.99
$619.99 - $619.99
$619.99
$490.16
$490.16 - $490.16
$490.16

TRX 400EX 400X Hot Rods Crank Bearings Hot Rods Rod Crankshaft Main Bearing Kit

Hot Rods
In stock

Hot Rods Crank, 4040, 13000-MBV-730,4040,K014,91001-KF0-018,13000MBV730,91001KF0018Premium Hot Rods Crankshaft & SKF Main Bearing Kit for Honda...

View full details
$619.99
$619.99 - $619.99
$619.99
$490.16
$490.16 - $490.16
$490.16
Save 21% Save %
Save 25% Save %
$39.99
$39.99 - $39.99
$39.99
$29.98
$29.98 - $29.98
$29.98

TRX 400EX 400X Cam Bearings OEM Aftermarket Bearing 91002-MN1-671 91003-KF0-008

SKF
In stock

WORKS ON ALL HONDA 400EX 400X AND XR400R MODELS AND YEARSSKF OEM Upgrade Aftermarket Camshaft Bearing SetBearing Made in Germany / FranceReplaces H...

View full details
$39.99
$39.99 - $39.99
$39.99
$29.98
$29.98 - $29.98
$29.98
Save 25% Save %
Save 14% Save %
$299.99
$299.99 - $299.99
$299.99
$258.88
$258.88 - $258.88
$258.88

TRX 400EX 400X XR 400R Stock Cylinder Piston Top End Rebuild Kit Performance Cam

BPRATV
In stock

4606M08500, C7825, 1051-3, 12100-KCY-670, 71016-4,4667M08900, 1043-2, C7826, 1051-3, 12100-KCY-670, 71016-4, 13111-KCY-670, 4606M08500, C7826, 7101...

View full details
$299.99
$299.99 - $299.99
$299.99
$258.88
$258.88 - $258.88
$258.88
Save 14% Save %
Save 27% Save %
$149.99
$149.99 - $149.99
$149.99
$108.88
$108.88 - $108.88
$108.88

Honda TRX 400EX 400X Cylinder Head Studs Titanium Ti Head Stud Bolt Nut Kit Set

BPRATV Talon Titanium
In stock

3PHD, 30-33750, 90085-KCY-670, 90083-KG0-981BPRATV TALON TITANIUM Extreme Heavy Duty Cylinder Head Stud KitHonda 400EX, 400X, & XR400R Years 19...

View full details
$149.99
$149.99 - $149.99
$149.99
$108.88
$108.88 - $108.88
$108.88
Save 27% Save %
Save 30% Save %
$605.79
$605.79 - $605.79
$605.79
$424.44
$424.44 - $424.44
$424.44

Honda TRX400EX 400EX 400X XR400 89mm 440 JE Cometic 10.8:1 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
$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

TRX400EX 400EX 400X 89mm 440cc Big Bore Cylinder JE 11:1 Piston Cometic Top 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 13% Save %
$459.99
$459.99 - $459.99
$459.99
$398.88
$398.88 - $398.88
$398.88

TRX400EX 400EX 400X XR400 87mm 87 416cc JE Cometic 10.8:1 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 8% Save %
$459.00
$459.00 - $459.00
$459.00
$424.44
$424.44 - $424.44
$424.44

TRX 400EX 400X 87mm Big Bore Cylinder 12:1 JE Piston Cometic Top End Rebuild Kit

BPRATV
Low stock

199656, 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
$459.00
$459.00 - $459.00
$459.00
$424.44
$424.44 - $424.44
$424.44
Save 8% Save %
Save 8% Save %
$459.00
$459.00 - $459.00
$459.00
$424.44
$424.44 - $424.44
$424.44

Honda TRX400EX 400EX 400X XR400 87mm 416cc JE Cometic 12:1 Cylinder Big Bore Kit

BPRATV
Low stock

199656, 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
$459.00
$459.00 - $459.00
$459.00
$424.44
$424.44 - $424.44
$424.44
Save 8% Save %
Save 13% Save %
$459.99
$459.99 - $459.99
$459.99
$398.88
$398.88 - $398.88
$398.88

TRX400EX 400EX 400X 87mm Big Bore Cylinder JE Piston Cometic Top End Rebuild 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 %
Sold out
$480.78
$480.78 - $480.78
$480.78
$388.88
$388.88 - $388.88
$388.88

TRX400EX 400EX 400X XR400 88mm Big Bore Cylinder JE Piston & Gaskets Rebuild Kit

JE Pistons
Out of 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
$480.78
$480.78 - $480.78
$480.78
$388.88
$388.88 - $388.88
$388.88
Sold out
Save 30% Save %
$999.99
$999.99 - $999.99
$999.99
$699.98
$699.98 - $699.98
$699.98

99-08 Honda Sportrax 400 TRX400X TRX400EX Completely ASSEMBLED Cylinder Head Kit

BPRATV
In 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-HA0-7...

View full details
$999.99
$999.99 - $999.99
$999.99
$699.98
$699.98 - $699.98
$699.98
Save 30% Save %
Save 29% Save %
$687.49
$687.49 - $687.49
$687.49
$489.99
$489.99 - $489.99
$489.99

Best 05+ TRX 400EX 400X Bottom End Rebuild Kit Crank Shaft Motor Engine Assembly

BPRATV
In stock

COMPLETE BOTTOM END REBUILF FOR HONDA TRX 400EX!Compatible with all 2005+ Honda 400EX and 400X models!A Great & Affordable Complete Bottom End ...

View full details
$687.49
$687.49 - $687.49
$687.49
$489.99
$489.99 - $489.99
$489.99
Save 29% 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