Wiseco Yamaha YZ 400 77-78/IT 40077-78 3347TD Piston Kit

Wiseco Yamaha YZ 400 77-78/IT 40077-78 3347TD Piston Kit

Marsoni

M251S

$107.67

Get it in 3 business days with 1 day shipping. Friday, May 29

Wiseco Yamaha YZ 400 77-78/IT 40077-78 3347TD 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. This Part Fits: Year Make Model Submodel 1977 1978 Yamaha IT400

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An amazing set fits perfectly. I would necessarily call it a track suit because it’s more stylish than that however, the comfort is track suit / walking suit feeling. I got mine in 2x and it fits as I expected it to so yes it is true to size. The colors don’t fade and the weight of the set feels like it was made with quality material, not some flimsy sown together item full of loose strings.

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Reviewed in the United States on March 8, 2026

Verified Purchase

Tiffany

Carnegie, US

★★★★★ 5

Fit

Color: Navy Blue, Size: X-Large

This fit perfectly my son looked great in it.

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Reviewed in the United States on June 4, 2026

Verified Purchase