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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24
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Description
Wiseco Yamaha YFZ450 04-13/450R 09-19 11.41 CR Piston KitExperience unmatched performance and reliability with the Wiseco Yamaha YFZ450 04 13 450R 09 19 11. 41 CR Piston Kit, designed specifically for powersports enthusiasts. Crafted with precision engineering, this piston set offers an 11. 41 compression ratio, optimizing your Yamaha YFZ450 and 450R models for maximum power and efficiency. Wiseco, a trusted name in engine components, ensures each piston kit is built to endure the rigors of high performance
Experience unmatched performance and reliability with the Wiseco Yamaha YFZ450 04-13/450R 09-19 11.41 CR Piston Kit, designed specifically for powersports enthusiasts. Crafted with precision engineering, this piston set offers an 11.41 compression ratio, optimizing your Yamaha YFZ450 and 450R models for maximum power and efficiency. Wiseco, a trusted name in engine components, ensures each piston kit is built to endure the rigors of high-performance riding, delivering consistent results on the track and trails.This piston set enhances your engine's responsiveness and durability, making it an ideal upgrade for both recreational riders and competitive racers. Installing this high-quality component will help unleash your machine's potential with improved combustion and power delivery, all while maintaining engine reliability. Whether you are restoring, repairing, or upgrading, the Wiseco piston kit gives you the confidence to push your powersports bike to the limit with peace of mind.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
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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
4.0 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
Worth it
Size: Small, Color: White 2-pack
Nice white material true to size and will order again
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Reviewed in the United States on May 31, 2026
★★★★★ 4
Great for pajama shirts
Size: Large, Color: White 4-pack
Shirts are true to size. The material is soft and not too thin. We used these as pajama shirts for my preteen and he got a lot of use out of them.
Pro - cheap and well made
Con - they did shrink slightly after a few washes so the shirt is shorter. Didn’t impact our use though
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Reviewed in the United States on April 20, 2026
★★★★★ 3
Pay attention to the size chart
Size: Large, Color: White 2-pack, Size: Large, Color: White 2-pack
Good price for 2 undershirts. Retail price on the item packaging says $16.95. The shirts are thin and semi see-through but these are meant to be layered under another top. Have not washed yet but there's a good chance they will shrink a bit.
Had to return the first time because of inaccurate/unhelpful size chart. For reference, see the actual size chart on the product packaging (I attached to this review). Originally purchased a Medium for a 10yo average build child, it was too short. Large is the correct size.
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Reviewed in the United States on January 30, 2025
★★★★★ 5
X-small comparable to 2T
Size: X-Small, Color: White 2-pack
Got these for my 1.5 year old who fits in 2T pretty well, x small is perfect! They are so soft, a little thin but very happy with the quality
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Reviewed in the United States on August 4, 2025
★★★★★ 5
Perfect undershirt for uniform
Size: Medium, Color: White 4-pack
Material thickness:
I love how soft and thick the shirt is. My kid is comfortable wearing it an undershirt for his uniform. It does not make him hot.
Fit:
Perfect fir for 5yo 60ish lbs
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Reviewed in the United States on June 24, 2025