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2004 Honda XR400R

Wiseco Pro-Lite 4-Stroke Piston - Stock Bore

Retail: $165.99
You Save: $16.00 (10%)
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In Stock - Ships Today
Have it by April 21st when you order by 3:00pm PST.
FITS: 2004 Honda XR400R change
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Product Description

Important note: This piston is for a stock sized bore. Please measure your cylinder to check clearance before ordering.

Wiseco leads the performance aftermarket by producing the highest quality forged pistons in the U.S.A. Wiseco is unique because they forge all of their own pistons in-house, and produce all of their own forge tooling in the U.S.A. This allows Wiseco to control all aspects of their manufacturing process from raw bar to skirt coating on the finished parts.

Extreme racing conditions demand the strength and toughness that only forged pistons can offer. Compared to cast pistons, forgings are tougher and more durable, and will stand up to the abuse that high performance motorsport applications require. Most castings are brittle, have no grain structure and tend to fail catastrophically when the material yield strength is exceeded. Forgings have condensed grain that is aligned to the features of the part, which produces higher mechanical properties, and resistance to impact and fatigue. Each forging is designed to optimize the strength-to-weight ratio, and maximize performance.

Wiseco Pro-Lite motorcycle pistons are forged using the highest quality materials available resulting in a piston that provides excellent performance and durability. The Wiseco Pro-Lite piston features a race-ready dome finish with smooth edges for improved combustion flow. The rings, wrist pin, and circlips are manufactured by Wiseco under their strict quality standards to make sure every piston kit fits correctly, ensuring top performance is achieved.

  • Bore size: 85 mm (Stock).
  • Much stronger than stock.
  • Tight tolerances for quiet running.
  • More hours with peak performance between piston changes.
  • All Pro-Lite pistons include rings, wrist pin and circlips.

Note: Image is for reference ONLY, actual contents will vary based on fitment.

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1-1 of 1
Location: hesperia, ca
Kicking yo

gone 5 dune sessons and 3 races on the same piston and still runing strong

1-1 of 1
Total Questions (4)
Questions with answers:
Questions without answers:
1-4 of 4
dman 14 days ago
Is this a 3 ring piston?
MotoSport Staff Expert
14 days ago Location: Portland, OR, USA
Yes. The Wiseco Piston for your Yamaha YZ250F would come with 2 compression rings and the oil scraper ring set.
Lilhoppi84 1 month 12 days ago
Is the AMA legal to run in stock AMA classes?
Expert MotoSport Staff
29 days ago Location: Portland, OR, USA
Yes, as long as you keep the bike at the stock bore size, it is legal to run a Wiseco Piston in the Stock AMA Classes.
cole Over 9 months ago
Can I use this piston with stock connecting rod?
MotoSport Staff
Over 9 months ago Location: Portland, OR, USA
Yes, this is designed to be an OEM replacement piston kit and will work with all stock engine parts including the stock crank and rod.
mxmx Over 4 years ago
Dose this come with?
every thing in the the rings and stuff
MotoSport Staff
Over 4 years ago Location: Tualatin
they come with the piston, ring(s), circlips and depending on what model it's for, they usually come with the wrist pin.
1-4 of 4

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