SKU: 86874167810

Wiseco Yamaha YZ 400 77-78/IT 40077-78 3386TD Piston Kit

Sale price$112.50 Regular price$125.00
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  • CAN

Ships within 48 hours · Estimated delivery Aug 23 - Aug 28

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Description

Wiseco Yamaha YZ 400 77-78/IT 40077-78 3386TD Piston KitClassic Forged 2 stroke pistons are perfect for those looking to rebuild their 2 stroke engine with reliable, high quality components. These pistons cover a wide range of Powersports rebuilds, including vintage motocross models, classic street bikes, and snowmobiles. The forged material improves tensile strength over cast pistons, ensuring refreshed performance on the track or the trail. Dedicated forgings and additional lightening operations allow

Classic Forged 2-stroke pistons are perfect for those looking to rebuild their 2-stroke engine with reliable, high-quality components. These pistons cover a wide range of Powersports rebuilds, including vintage motocross models, classic street bikes, and snowmobiles. The forged material improves tensile strength over cast pistons, ensuring refreshed performance on the track or the trail.

  • Dedicated forgings and additional lightening operations allow for optimized strength-to-weight ratio
  • Improved tensile strength of forged material optimizes strength and service life
  • Designed and built for each specific 2-stroke powersports engine
  • Includes high-quality piston ring(s), wrist pin(s), and circlips
  • Engineered, forged, and machined in the USA in Mentor, OH
  • 86.00 mm Bore

This Part Fits:

Year Make Model Submodel
1977-1978 Yamaha IT400 Base
1977-1978 Yamaha YZ400 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: 86874167810

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Blueberry Hill
Port Orchard, US
★★★★★ 1
Awful fabric
Size: Large, Color: White Stripe
Not too shear but very thin and clingy, like wearing cling wrap. Returned.
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Reviewed in the United States on June 21, 2021
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Nonnie Muss
Alexandria, US
★★★★★ 1
Itsy bitsy teeny weenie.
Size: Large, Color: White Stripe
Teeny tiny. I ordered a large, as I wear a size 10-12 and larges are usually perfect or even a little big on me. This could be described a a child’s size large. I could technically fit into it, but it qas skin tight and stretched out all over. “Slim fit” indeed. Even the sleeves are too tight and very short. If you order, go at least two sizes bigger than you usually wear.
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Reviewed in the United States on January 12, 2026
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Ellie W.
Chelsea, US
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Ran ver small
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A size smaller than normal. Tight through body but nice longer length.
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Reviewed in the United States on August 10, 2021
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Rhonda Santis
New York, US
★★★★★ 1
Stretchy and poor quality
Size: Large, Color: White Stripe
Shirt was way to big and just got more stretchy and schlumpy with just and hour or two of wear. Not a classic Breton style shirt so do not expect much
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Reviewed in the United States on December 10, 2022
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Kindle Customer
Draper, US
★★★★★ 1
Poor quality
Size: Large, Color: White Stripe
See through, thin, and rough feeling. Not anything like the material the Amazon brand t-shirts are made of.
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Reviewed in the United States on October 17, 2023

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