Skip to content
SHIPPING UPDATE: Due to high demand, orders are currently processing in 5-7 business days. Need it faster? Contact us to upgrade to expedited shipping! If you’ve found the item elsewhere or can’t wait, no problem—we completely understand. Just reach out to us, and we’ll cancel your order. Thanks for your patience and support! BRAPPPPPPPPPP!
SHIPPING UPDATE: Due to high demand, orders are currently processing in 5-7 business days. Need it faster? Contact us to upgrade to expedited shipping! If you’ve found the item elsewhere or can’t wait, no problem—we completely understand. Just reach out to us, and we’ll cancel your order. Thanks for your patience and support! BRAPPPPPPPPPP!
TRX400EX 400EX 400X 88mm 11:1 JE Piston Cometic Gaskets Kit Top End Rebuild Seal

TRX400EX 400EX 400X 88mm 11:1 JE Piston Cometic Gaskets Kit Top End Rebuild Seal

by JE Pistons
Save 7% Save 7%
$289.99
$289.99 - $289.99
$289.99
$269.99
$269.99 - $269.99
$269.99
JE 88mm 11:1 426cc Big Bore Piston Kit & Cometic Top End Gasket Set

Fits Honda TRX400EX, TRX400X, and XR400

Years 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014

This kit includes:
88mm 11:1 JE piston kit with a wrist pin and clips
Cometic top-end gasket kit
Valve Stem Seals
All parts are warranted and come new in the original packaging.
 More payment options

TOP SELLERS

Best 400EX valves springs head rebuild near me
Save 13% Save %
$149.99
$149.99 - $149.99
$149.99
$129.99
$129.99 - $129.99
$129.99

400EX 400X Head Redo Valves Intake Exhaust Valve Springs Rocker Arms Rebuild Kit

BPRATV

FITS ALL HONDA 400EX 400X AND XR400R MODELS AND YEARS - THE ONLY TRULY COMPLETE REBUILD KIT ONLINE Steel intake and exhaust valves Inner and oute...

View full details
$149.99
$149.99 - $149.99
$149.99
$129.99
$129.99 - $129.99
$129.99
Save 13% Save %
Save 35% Save %
$461.99
$461.99 - $461.99
$461.99
$299.99
$299.99 - $299.99
$299.99

Honda 400EX Top End Rebuild Kit Wiseco 4606M08500 Stock Cylinder Assembly Parts

BPRATV

1043-2, M2003, 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
$461.99
$461.99 - $461.99
$461.99
$299.99
$299.99 - $299.99
$299.99
Save 35% Save %
Save 24% Save %
$41.99
$41.99 - $41.99
$41.99
$31.99
$31.99 - $31.99
$31.99

Honda 400EX 400X XR400R Exhaust Studs Titanium Head Pipe Stud Upgrade Kit Set

BPRATV Talon Titanium

FITS ALL HONDA TRX400EX XR400R AND 400X MODELS AND YEARS Studs for all OEM and aftermarket exhaust systems All titanium stud and nut kit Made from ...

View full details
$41.99
$41.99 - $41.99
$41.99
$31.99
$31.99 - $31.99
$31.99
Save 24% Save %
Get best 400EX 88mm big bore hot cam near me
Save 40% Save %
$997.69
$997.69 - $997.69
$997.69
$599.98
$599.98 - $599.98
$599.98

Honda 400EX 400X 88mm +3 Big Bore Kit Stage 2 Cam 426cc Top End Rebuild 2 Hotcam

BPRATV

Works on all Honda 400EX, 400X, and XR400R models and years 88mm heavy-duty big bore cylinder 88mm big bore Wiseco or Wossner forged piston Nitrite...

View full details
$997.69
$997.69 - $997.69
$997.69
$599.98
$599.98 - $599.98
$599.98
Save 40% Save %
Save 24% Save %
$461.99
$461.99 - $461.99
$461.99
$349.99
$349.99 - $349.99
$349.99

Honda TRX 400EX XR400R 87mm Big Bore Kit +2mm Cylinder 416cc Top End Rebuild Kit

BPRATV

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
$461.99
$461.99 - $461.99
$461.99
$349.99
$349.99 - $349.99
$349.99
Save 24% Save %
Shop collection

Compare products

0 of 3 items selected

Select first item to compare

Select second item to compare

Select third item to compare

Compare