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⚠️ ATTENTION FELLOW PATRIOTS: BPRATV will be CLOSED on Friday, July 3rd, 2026, in observance of the Fourth of July holiday. We'll reopen and resume the grind for liberty on Monday, July 6th, 2026. Proceed accordingly. Muuurica! ⚠️
⚠️ ATTENTION FELLOW PATRIOTS: BPRATV will be CLOSED on Friday, July 3rd, 2026, in observance of the Fourth of July holiday. We'll reopen and resume the grind for liberty on Monday, July 6th, 2026. Proceed accordingly. Muuurica! ⚠️
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit
400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit

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

by BPRATV
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$599.99
$599.99 - $599.99
$599.99
$447.50
$447.50 - $447.50
$447.50
  • Works on all Honda 400EX, 400X, and XR400R models and years
  • 87mm heavy-duty big bore cylinder
  • 87mm big bore Wiseco or Wossner forged piston
  • Nitrite-coated piston rings
  • Chrome wrist pin
  • Circlips
  • Cometic big bore top-end gasket kit
  • MLS big bore head gasket
  • Talon TITANIUM cylinder head stud kit - LIFETIME WARRANTY*
  • NGK spark plug
  • No case or head mods required
  • Runs on pump or race gas
  • 1-year warranty on the complete kit, used and new parts*

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$374.98
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$374.98
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$338.88

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

BPRATV
In stock

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...

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

BPRATV
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30-3111,30-3115,30-3117,14711-KCY-670,14721-KCY-670 8400003-2, 8400003-1,VES003, VIS003,X2VEK16000,X2VIK16000 28.1495-2, 28.1495-1,14711-KCY-670, 1...

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TRX400EX 400EX Timing Guide Guides Tensioner Chain Tensioner BPRATV HD Cam Chain

BPRATV
In stock

FITS ALL HONDA 400EX 400X XR400R MODELS AND YEARSAftermarket Cam chain guide - Replaces OEM Part # 14620-KCY-670Aftermarket Cam cam chain tensioner...

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$31.99
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Honda 400EX 400X XR400R Exhaust Studs Titanium Head Pipe Stud Upgrade Kit Set

BPRATV Talon Titanium
In stock

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 ...

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$31.99
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$486.10
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Honda TRX 400EX XR400R 87mm Big Bore Kit +2mm Cylinder 416cc 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-...

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$486.10
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$486.10
$447.50
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$447.50
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