Wiseco Yamaha XT/TT/SR500 76-81 121 CR 3445XC Piston kit
SKU: 38575136403

Wiseco Yamaha XT/TT/SR500 76-81 121 CR 3445XC Piston kit

Sale price$133.65 Regular price$148.50
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Wiseco Yamaha XT/TT/SR500 76-81 121 CR 3445XC 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
  • 87.50 mm Bore, 12:1 CR

This Part Fits:

Year Make Model Submodel
1978-1981 Yamaha SR500 Base
1976-1981 Yamaha TT500 Base
1976-1981 Yamaha XT500 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: 38575136403

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Briwurm de Mesa
Boise, US
★★★★★ 5
Nice item
Great product thank you
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Reviewed in the United States on January 23, 2026
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Janeth B
Battle Creek, US
★★★★★ 5
Great
I recently used this motor oil for my car, and I’m very satisfied with the results. The engine runs smoother and quieter, and I noticed improved performance almost immediately. It provides excellent protection, especially during longer drives, and helps maintain steady engine temperature.
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Reviewed in the United States on September 8, 2025
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Gustavo Gonzalez
Whiting, US
★★★★★ 5
As expected it
Great brand, engine smoothness, value for money
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Reviewed in the United States on January 24, 2026
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Lauren
Massapequa, US
★★★★★ 5
Perfect
Excellent spark plugs. Seems like OEM performance. Very easy to install. Fit perfect for an 08 crv exl
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Reviewed in the United States on November 29, 2025
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RZA
Boise, US
★★★★★ 5
Amazing Spark plugs
Smooth starting came after I fitted these Bosch 9614 double iridium plugs into my 2014 Honda Accord Sport, along with slightly better idling behavior. Longevity might come from those fine iridium tips; installing them felt straightforward enough. Yet here's the catch - the 9614 doesn't match what the factory actually specifies for the 2.4L engine in that year’s Accord. Most often, it's the 9694 or some other OEM-recommended plug you’d want instead
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Reviewed in the United States on December 30, 2025

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