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 %
$1,599.99
$1,599.99 - $1,599.99
$1,599.99
$1,099.99
$1,099.99 - $1,099.99
$1,099.99

99-04 TRX 400EX 88mm Rebuild Kit Top Bottom Big Bore Motor Engine Assembly 426c

BPRATV
In stock

WORKS ON ALL '99-04 HONDA 400EX MODELS Aftermarket 88mm big bore cylinder 88mm big bore Wiseco JE or CP forged piston* Nitrite coated piston rings ...

View full details
$1,599.99
$1,599.99 - $1,599.99
$1,599.99
$1,099.99
$1,099.99 - $1,099.99
$1,099.99
Save 31% Save %
Save 8% Save %
$1,299.99
$1,299.99 - $1,299.99
$1,299.99
$1,199.99
$1,199.99 - $1,199.99
$1,199.99

Honda 400EX 400X +1 Ported Assembled Head Port Porting Kibblewhite +1mm Valves

BPRATV
In stock

FITS ALL HONDA TRX400EX, 400X, AND XR400R MODELS AND YEARSNEW after-market cylinder head and valve cover Full race port and polish Valve guides cut...

View full details
$1,299.99
$1,299.99 - $1,299.99
$1,299.99
$1,199.99
$1,199.99 - $1,199.99
$1,199.99
Save 8% Save %
Save 21% Save %
$139.99
$139.99 - $139.99
$139.99
$110.99
$110.99 - $110.99
$110.99

400EX 400X XR400R Ti Cylinder Head Studs Strongest Heavy Duty Titanium Stud Kit

BPRATV
In stock

FITS ALL HONDA TRX400EX XR400R AND 400X MODELS AND YEARS - BUY IN BULK AND SAVE $$$Complete kit for cylinder headAll titanium stud and nut kitMade ...

View full details
$139.99
$139.99 - $139.99
$139.99
$110.99
$110.99 - $110.99
$110.99
Save 21% Save %
$74.95 - $74.95
$74.95
$74.95 - $74.95
$74.95

Honda TRX400EX TRX 400EX 400X OEM Extreme Heavy Duty Hotcam Hot Cam Timing Chain

BPRATV
In stock

HC82RH2010112,CC004,14401-KCY-671,31.1496,SCA0409SV112 Brand New Direct Replacement Hot Cams Heavy Duty Timing Chain Fits Honda TRX400EX, TRX400X,...

View full details
$74.95 - $74.95
$74.95
$74.95 - $74.95
$74.95
Save 20% Save %
$33.34
$33.34 - $33.34
$33.34
$26.68
$26.68 - $26.68
$26.68

Honda TRX400EX/TRX400X/XR400R 0.027" MLS Cylinder Head Gasket 86mm 85mm OEM Bore

Cometic Gaskets
In stock

Replace your TRX400EX head gasket with Cometic MLS. Fits 85-86mm bore, .027 thickness, durable and high performance. Cometic Honda TRX400EX TRX40...

View full details
$33.34
$33.34 - $33.34
$33.34
$26.68
$26.68 - $26.68
$26.68
Save 20% Save %
Save 20% Save %
$33.34
$33.34 - $33.34
$33.34
$26.68
$26.68 - $26.68
$26.68

Cometic MLS Head Gasket 85mm OEM Stock Bore Head Gasket for Honda TRX400EX 400EX

Cometic Gaskets
In stock

Premium MLS gasket for Honda TRX400EX TRX400X XR400R. .027 thickness ensures optimal combustion sealing and durability. Cometic Honda TRX400EX TR...

View full details
$33.34
$33.34 - $33.34
$33.34
$26.68
$26.68 - $26.68
$26.68
Save 20% Save %
Save 20% Save %
$33.34
$33.34 - $33.34
$33.34
$26.68
$26.68 - $26.68
$26.68

09-14 Honda TRX400X TRX 400EX 400X 85mm OEM Stock Bore Cometic MLS Head Gasket

Cometic Gaskets
In stock

High-quality Cometic MLS gasket for Honda 400EX TRX400X XR400R. Built for stock bore engines with precision sealing. Cometic Honda TRX400EX TRX40...

View full details
$33.34
$33.34 - $33.34
$33.34
$26.68
$26.68 - $26.68
$26.68
Save 20% Save %
Save 22% Save %
$243.10
$243.10 - $243.10
$243.10
$188.88
$188.88 - $188.88
$188.88

Kibblewhite Top End Spring Guide Seal Kit Honda TRX400EX 400X XR400 Performance!

Kibblewhite Precision
In stock

Complete Kibblewhite Titanium Valve Spring Kit with Bronze Guides and RED Viton Seals for Honda TRX400EX, 400X, and XR400. USA-made performance upg...

View full details
$243.10
$243.10 - $243.10
$243.10
$188.88
$188.88 - $188.88
$188.88
Save 22% Save %
$355.95 - $355.95
$355.95
$383.95
$383.95 - $383.95
$383.95

Hot Cams Stage 2 Camshaft Honda TRX400EX 400X XR400R 99–14 Mid Top End Power Cam

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 20% Save %
$53.99
$53.99 - $53.99
$53.99
$43.19
$43.19 - $43.19
$43.19

TRX400EX XR400 400X Honda Valve Keepers Cotters with Kibblewhite Red Viton Seals

Kibblewhite Precision
In stock

Secure your Honda's valvetrain with this Complete Kit! Includes 8 Valve Keepers (14781-HA0-770) & 4 Kibblewhite RED Viton Seals (12209-422-005,...

View full details
$53.99
$53.99 - $53.99
$53.99
$43.19
$43.19 - $43.19
$43.19
Save 20% Save %
Save 20% Save %
$53.99
$53.99 - $53.99
$53.99
$43.19
$43.19 - $43.19
$43.19

Honda TRX400EX 400X XR400R Valve Keepers Cotters Set Kibblewhite Viton Seals Kit

Kibblewhite Precision
In stock

Secure your Honda's valvetrain with this Complete Kit! Includes 8 Valve Keepers (14781-HA0-770) & 4 Kibblewhite RED Viton Seals (12209-422-005,...

View full details
$53.99
$53.99 - $53.99
$53.99
$43.19
$43.19 - $43.19
$43.19
Save 20% Save %
Save 26% Save %
$264.00
$264.00 - $264.00
$264.00
$194.56
$194.56 - $194.56
$194.56

Kibblewhite Top End Kit TRX 400EX 400X XR400R Valves Seals MLS Gaskets Complete

Kibblewhite Precision
In stock

Kibblewhite Top End Kit TRX 400EX 400X XR400R Valves Seals MLS Gaskets Complete ...

View full details
$264.00
$264.00 - $264.00
$264.00
$194.56
$194.56 - $194.56
$194.56
Save 26% Save %
Save 21% Save %
$489.99
$489.99 - $489.99
$489.99
$388.88
$388.88 - $388.88
$388.88

Honda 400EX 400X XR400 Top End Rebuild Kit CP Piston Gaskets Cylinder NGK Plug

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 21% Save %
$489.99
$489.99 - $489.99
$489.99
$388.88
$388.88 - $388.88
$388.88

Honda 400EX 400X XR400 Top End Rebuild Kit Stock CP Piston NGK Plug Cometic Set

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 21% Save %
$489.99
$489.99 - $489.99
$489.99
$388.88
$388.88 - $388.88
$388.88

Honda 400EX 400X XR400 Top End Rebuild Kit 11:1 CP Piston NGK Plug & Cometic Set

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 21% Save %
$489.99
$489.99 - $489.99
$489.99
$388.88
$388.88 - $388.88
$388.88

Honda TRX400EX 400X XR400 85mm 11:1 CP Piston Top End Kit Cometic MLS Gasket Set

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 21% Save %
$489.99
$489.99 - $489.99
$489.99
$388.88
$388.88 - $388.88
$388.88

Honda TRX400EX 400X XR400 85mm Top End Rebuild Kit 11:1 CP Piston Cometic Gasket

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 25% Save %
$599.99
$599.99 - $599.99
$599.99
$447.50
$447.50 - $447.50
$447.50

TRX 400EX 400X 87mm Big Bore Cylinder +2mm Top End Rebuild Kit Complete Assembly

BPRATV
In 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
$599.99
$599.99 - $599.99
$599.99
$447.50
$447.50 - $447.50
$447.50
Save 25% Save %
Save 10% Save %
$419.98
$419.98 - $419.98
$419.98
$376.88
$376.88 - $376.88
$376.88

TRX 400EX TRX400EX 400X 87mm 87 416cc 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
$419.98
$419.98 - $419.98
$419.98
$376.88
$376.88 - $376.88
$376.88
Save 10% Save %
Save 20% Save %
$49.95
$49.95 - $49.95
$49.95
$39.98
$39.98 - $39.98
$39.98

Wiseco 88mm Ring Set 3465XC Fits Honda 400EX XR400R 426cc Big Bore Piston Repair

Wiseco
In stock

🔥 Honda 400EX / XR400 88mm Wiseco Big Bore Piston Ring Set – 3465XC 🔥 🛠️ Product Overview This listing is for a genuine Wiseco 88mm piston r...

View full details
$49.95
$49.95 - $49.95
$49.95
$39.98
$39.98 - $39.98
$39.98
Save 20% Save %
Save 20% Save %
$49.95
$49.95 - $49.95
$49.95
$39.98
$39.98 - $39.98
$39.98

Honda TRX 400EX XR400 Wiseco 88mm Piston Rings 3465XC Big Bore 426cc Rebuild Set

Wiseco
In stock

🔥 Honda 400EX / XR400 88mm Wiseco Big Bore Piston Ring Set – 3465XC 🔥 🛠️ Product Overview This listing is for a genuine Wiseco 88mm piston r...

View full details
$49.95
$49.95 - $49.95
$49.95
$39.98
$39.98 - $39.98
$39.98
Save 20% Save %
Save 30% Save %
$699.99
$699.99 - $699.99
$699.99
$489.98
$489.98 - $489.98
$489.98

Honda TRX 400EX Big Bore 89mm 440cc 12.5:1 Wiseco Piston Top Engine Rebuild Kit

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 %
$386.78 - $386.78
$386.78
$388.88
$388.88 - $388.88
$388.88

TRX400EX 400EX 400X XR400 85mm Stock Bore Cylinder JE Piston Gaskets Rebuild Kit

BPRATV
Low stock

TRX400EX 400EX 400X XR400 85mm Stock Bore Cylinder JE Piston Gasket Rebuild Kit! ...

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 400EX 400X XR400 89mm 89 440cc 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 25% Save %
$599.99
$599.99 - $599.99
$599.99
$447.50
$447.50 - $447.50
$447.50

Honda 400EX 400X XR400 87mm Big Bore Kit +2mm Cylinder 416 Top End Rebuild Parts

BPRATV
In 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
$599.99
$599.99 - $599.99
$599.99
$447.50
$447.50 - $447.50
$447.50
Save 25% Save %
Save 37% Save %
$381.55
$381.55 - $381.55
$381.55
$238.87
$238.87 - $238.87
$238.87

TRX400EX 400EX 87mm 87 416cc Big Bore Cylinder 11:1 CP Piston Cometic Gasket Kit

BPRATV
Low stock

4628M08700, 133889, 4606M08700, 1043-2, M2003, M2001,4606M08700,12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 30-33750, 13011-KCY-670, ...

View full details
$381.55
$381.55 - $381.55
$381.55
$238.87
$238.87 - $238.87
$238.87
Save 37% 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 89mm +4 Big Bore Cylinder Crank Wiseco Piston Engine Rebuild Kit 99-04

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 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 TRX400EX 89mm 440 Big Bore Cylinder 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 87mm +2 Big Bore Cylinder Crank Wiseco Piston Engine Rebuild Kit 99-04

BPRATV
Low stock

WPC131A, 4606M08700, 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 %
$386.78 - $386.78
$386.78
$388.88
$388.88 - $388.88
$388.88

TRX400EX 400EX 400X XR400 85mm Stock Bore Cylinder JE Piston Gaskets 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

TRX 400EX 400X XR400 89mm Big Bore Cylinder 10.8:1 JE Piston Gaskets 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 %
Save 28% Save %
$496.85
$496.85 - $496.85
$496.85
$359.36
$359.36 - $359.36
$359.36

Honda TRX400EX TRX 400EX Kibblewhite Intake Exhaust Valves Guides Seals Springs

Kibblewhite Precision
In stock

330-3120,30-3111,30-3115,30-3117,71016-4, 14711-KCY-670, 14721-KCY-670 14411-KCY-670, 14421-KCY-670 14431-KCY-670, 14445-KF0-000 14446-KF0-000, 144...

View full details
$496.85
$496.85 - $496.85
$496.85
$359.36
$359.36 - $359.36
$359.36
Save 28% Save %
Save 15% Save %
$1,299.99
$1,299.99 - $1,299.99
$1,299.99
$1,099.99
$1,099.99 - $1,099.99
$1,099.99

05+ TRX 400EX 400X Big Bore 89mm Complete Rebuilt Motor Engine Rebuild Parts Kit

BPRATV
In stock

FITS ALL '05+ HONDA TRX 400EX AND 400X MODELS NEW 89mm after market cylinder CP JE or Wiseco forged hi comp pump gas piston** Hi temp piston rings ...

View full details
$1,299.99
$1,299.99 - $1,299.99
$1,299.99
$1,099.99
$1,099.99 - $1,099.99
$1,099.99
Save 15% Save %
Save 11% Save %
$97.66
$97.66 - $97.66
$97.66
$86.48
$86.48 - $86.48
$86.48

Honda TRX400EX 400X XR400 Kibblewhite Heavy Duty High Temp Head Studs 30-33750

Kibblewhite Precision
In stock

Upgrade your Honda TRX400EX with Kibblewhite heavy duty head studs featuring 180000 PSI alloy steel construction and superior clamping force. Upg...

View full details
$97.66
$97.66 - $97.66
$97.66
$86.48
$86.48 - $86.48
$86.48
Save 11% Save %
Save 1% Save %
$538.68
$538.68 - $538.68
$538.68
$533.68
$533.68 - $533.68
$533.68

TRX 400EX 400X XR400R Stage 1 Hot Cams Valves Springs Complete Head Rebuild Kit

Hot Cams
In stock

1007-1,3P-HRK,14775-KCY-670,90544-KF0-000,91002-MN1-671FITS ALL HONDA TRX400EX, 400X, AND XR400R MODELS AND YEARSStage 1 Hot Cams CamshaftSKF OEM U...

View full details
$538.68
$538.68 - $538.68
$538.68
$533.68
$533.68 - $533.68
$533.68
Save 1% Save %
Save 65% Save %
$1,264.95
$1,264.95 - $1,264.95
$1,264.95
$444.43
$444.43 - $444.43
$444.43

TRX400EX TRX 400EX Stage 1 Hotcam Hot Cam Valves Springs Chain Head Rebuild Kit

BPRATV
Low stock

FITS ALL HONDA TRX400EX TRX400X AND XR400R YEARS AND MODELS   COMPLETE PERFORMANCE HEAD REBUILD KIT! Listing includes: Stage 1 Hotcam Valve spri...

View full details
$1,264.95
$1,264.95 - $1,264.95
$1,264.95
$444.43
$444.43 - $444.43
$444.43
Save 65% Save %
Save 0% Save %
$400.00
$400.00 - $400.00
$400.00
$398.88
$398.88 - $398.88
$398.88

TRX 400EX TRX400EX 400X 87mm 87 416cc Big Bore Cylinder 10:1 Top End Rebuild Kit

BPRATV
Low 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
$400.00
$400.00 - $400.00
$400.00
$398.88
$398.88 - $398.88
$398.88
Save 0% Save %
Save 10% Save %
$133.78
$133.78 - $133.78
$133.78
$119.89
$119.89 - $119.89
$119.89

99-14 TRX400EX TRX 400EX ProX Pro X Intake Exhaust Valve Kit & KIBBLEWHITE Seals

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

Honda TRX400EX TRX 400EX ProX Head Fix Intake & Exhaust Valves KPMI Red Seal 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 14% Save %
$1,017.88
$1,017.88 - $1,017.88
$1,017.88
$872.56
$872.56 - $872.56
$872.56

Honda 400EX 400X 87mm 416cc 12.5:1 CP Piston Big Bore Cylinder Stage 2 Hot Cams

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, 13...

View full details
$1,017.88
$1,017.88 - $1,017.88
$1,017.88
$872.56
$872.56 - $872.56
$872.56
Save 14% Save %
Save 14% Save %
$1,017.88
$1,017.88 - $1,017.88
$1,017.88
$872.56
$872.56 - $872.56
$872.56

BPRATV TRX400EX 400EX 87mm 12.5 CP Piston Big Bore Cylinder Stage 2 Hot Cam Kit

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, 1311...

View full details
$1,017.88
$1,017.88 - $1,017.88
$1,017.88
$872.56
$872.56 - $872.56
$872.56
Save 14% Save %
Save 13% Save %
$1,017.88
$1,017.88 - $1,017.88
$1,017.88
$888.88
$888.88 - $888.88
$888.88

85mm Cylinder 10:1 CP Piston Gasket Stage 2 Cam Top Rebuild Kit For Honda 400EX

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 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 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-6...

View full details
$834.95
$834.95 - $834.95
$834.95
$788.88
$788.88 - $788.88
$788.88
Save 6% Save %
Save 13% Save %
$925.35
$925.35 - $925.35
$925.35
$802.33
$802.33 - $802.33
$802.33

Honda 400EX 400X 87mm 416cc CP 11 Pump Gas Big Bore Cylinder Stage 2 Hot Cam Kit

BPRATV
Low stock

Honda 400EX 400X 87mm 416cc CP 11 Pump Gas Big Bore Cylinder Stage 2 Hot Cam Kit ...

View full details
$925.35
$925.35 - $925.35
$925.35
$802.33
$802.33 - $802.33
$802.33
Save 13% Save %
Save 7% Save %
$33.34
$33.34 - $33.34
$33.34
$30.88
$30.88 - $30.88
$30.88

Best Honda TRX400EX TRX 400EX Head Gasket Cometic 87 88 89mm Big Bore MLS Gasket

Cometic, Cometic Gasket, Honda TRX 400EX 400X XR400, BPRATV
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 %
Save 7% Save %
$33.34
$33.34 - $33.34
$33.34
$30.88
$30.88 - $30.88
$30.88

Cometic Head Gasket 87 88 89mm Big Bore MLS Gasket for Honda TRX400EX 400EX 400X

Cometic, Cometic Gasket, Honda TRX 400EX 400X XR400, BPRATV
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 %
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 12191-KCY-672

Cometic, Cometic Gasket, Honda TRX 400EX 400X XR400, BPRATV
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 %
Save 22% Save %
$44.99
$44.99 - $44.99
$44.99
$34.99
$34.99 - $34.99
$34.99

NEW Honda TRX400EX TRX 400EX XR 400X 87mm WISECO Big Bore Piston Rings Set JAPAN

Wiseco
In stock

Honda 400EX / 400X / XR400 87mm Wiseco Big Bore Piston Replacement Rings KitPart# 3425XCThese rings are for Wiseco Piston Part #'s 4606M08700, 4628...

View full details
$44.99
$44.99 - $44.99
$44.99
$34.99
$34.99 - $34.99
$34.99
Save 22% 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