SKU: 18950936718

Wiseco Yamaha YZ400 98-99/WR400F 98-00 13.51 Piston kit

Sale price$141.30 Regular price$157.00
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USA
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Ships within 48 hours · Estimated delivery Sep 2 - Sep 7

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Description

Wiseco Yamaha YZ400 98-99/WR400F 98-00 13.51 Piston kitThe Wiseco team has remained at the forefront of powersports performance through every era and evolution, including the development of high performance 4 strokes. Today, Wiseco's forged 4 stroke pistons are designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength. Proven at every level of riding, Wiseco 4 stroke pistons are ready to deliver the power and reliability

The Wiseco team has remained at the forefront of powersports performance through every era and evolution, including the development of high-performance 4-strokes. Today, Wiseco's forged 4-stroke pistons are designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength. Proven at every level of riding, Wiseco 4-stroke pistons are ready to deliver the power and reliability you're looking for.

  • Complete Package: Each piston includes a wrist pin, rings, and circlips, providing everything needed for installation
  • Forged Material: Optimizes strength and service life, ensuring durability under high-stress conditions
  • Performance-Enhancing Features: Varied across applications to maximize both durability and power
  • Improved tensile strength of forged material optimizes strength and service life
  • Designed and built for each specific 4-stroke powersports engine
  • Dedicated forgings allow for optimized strength-to-weight ratio
  • Includes high-quality piston rings, wrist pin(s), and circlips
  • Engineered, forged, and machined in the USA in Mentor, OH
  • 94.00 mm Bore, 13.5:1 CR

This Part Fits:

Year Make Model Submodel
1998-2000 Yamaha WR400F Base
1998-1999 Yamaha YZ400F Base
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 18950936718

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4.3 ★★★★★
Based on 27 reviews
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A
Verified Purchase
Amazon Customer
Port Orchard, US
★★★★★ 2
Not compatible with Honda CRV 2023
Style: 1.5L, Style: 1.5L
Pretty disappointed that the description did not match what my car actually needed. THIS IS NOT COMPATIBLE WITH A HONDA 2023 CRV Engine Air filter… Just glad the cabin air filter worked. Having to buy another one… The image attached is what I needed to replace.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 18, 2026
S
Verified Purchase
Sam E
Waukegan, US
★★★★★ 5
Perfect fit and high quality.
Size: (Pack of 1)
Good product, not much to say. The product arrived quickly, looks to be of high quality construction, fit perfectly and took me only a couple of minutes to install. I love it when a product is no frills and delivers as advertised. I've used various filters from K&N before and have always had very good success with them so I will be buying more of these for sure when the time comes.
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Reviewed in the United States on November 9, 2025
J
Verified Purchase
john A.
Lowell, US
★★★★★ 5
Better than most.
Size: (Pack of 1)
Looks good, perfect fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
W
Verified Purchase
Willy Bill
Cuba, US
★★★★★ 5
Great Filter
Size: (Pack of 1)
This fits fine. Just wish it was a little easier to change.
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Reviewed in the United States on April 26, 2026
E
Verified Purchase
em
Houston, US
★★★★★ 5
More power, slightly lower (8%) MPG.
Size: (Pack of 1)
Installed on a 2.0 liter Subaru Impreza. I drive up/down the I5 in california 3-4 times a year. For those that don't know there is about a 200 mile flat stretch where everyone runs at 75-85mph. With various filters (FRAM, BOSCH, Subaru OEM), I would consistently get 29.8 mpg. Once I installed the K&N, I could feel the car pulling with a bit more power, but I noticed that I was getting about 27.5 mpg. Totally worth it as the impreza is a little under powered and I don't drive many miles (6k/year) but if you are putting a lot of miles on your car, you may want to have more mpg.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026

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