Moose Top End Gasket Kit 0934-6927 fits 2020-2023 Yamaha YZ450F, WR450F, YZ450FX

Time to give your beast a breath of fresh air? The Moose Offroad Top End Gasket Kit 0934-6927 is the wrench-turner’s best friend when it comes to rebuilding the top end of your Yamaha YZ450F (2020–2022), WR450F (2021–2023), or YZ450FX (2021–2023). Built with high-tech materials, precision fit, and just the right amount of compression-boosting punch, this kit lets you bring that four-stroke fury back to life—without breaking the bank.

🛠️ Everything you need: head gaskets, base gaskets, valve seals, O-rings, exhaust seals, and more—no digging through random part bins. Just open the box and get to work.

🔥 Featuring a .012” thick high-compression base gasket to add horsepower without messing with pistons or fancy head mods. Because faster is funner, right?

🇺🇸 Made in the USA. That means consistent quality, reliable performance, and confidence on every moto, trail, or GNCC line.

This top end gasket kit for Yamaha YZ450F, YZ450FX, and WR450F is built to keep your ride ripping for seasons to come. Whether you’re rebuilding after a top-end failure or just keeping things race fresh, Moose Racing has your back.

Top end gasket kit Yamaha YZ450F. Moose Offroad gasket kit YZ450FX. WR450F top end rebuild kit. (Google, eat your heart out.)

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✅ FAQs:

Q: Does this gasket kit fit my 2022 WR450F?
A: Yep! It’s made for 2021–2023 WR450F models, so you’re good to go.

Q: Does it include the valve cover gasket?
A: The formed rubber valve cover gasket is not included—reuse your original or order separately.

Q: Can this increase compression safely?
A: Yes! The .012” base gasket adds compression without high-dollar mods.

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