06-09 YZ450F YZ450 Stock Head Gasket Standard OEM Bore Top End Gaskets Seals Kit
06-09 Yamaha YZ450F WR450F Stock Bore Head Gasket & Top End Seal Kit
Premium Stock Bore Gasket & Seal Replacement
Restore OEM-level sealing and long-lasting performance with this complete YZ450F / WR450F Stock Bore Head Gasket & Top End Seals Kit, engineered as a direct-fit aftermarket solution for superior reliability.
🔥 Key Features & Benefits
Designed for durability, proper compression, and clean sealing for your Yamaha 450 engine.
- MLS stock bore head gasket for maximum sealing strength
- Includes base gasket and chain tensioner gasket
- High-quality Viton valve stem seals resist heat and oil breakdown
- Direct bolt-on replacement for stock bore cylinders
- Replaces Yamaha OEM part #2S2-11181-00-00, 2S2-11351-00-00, 4FM-12213-00-00, 3VD-14613-01-00, 33M-12119-00-00, 4SV-12119-00-00 & more
✅ Compatibility
This gasket and seal kit fits multiple Yamaha 450 performance models.
- Yamaha YZ450F: 2006–2009
- Yamaha WR450F: 2007–2009, 2011–2015
- Yamaha YFZ450R: All applicable stock bore fitments
- Works with all OEM stock bore cylinders
- Replaces the OEM gasket set for factory top-end rebuilds
❓ Frequently Asked Questions (FAQ)
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Q: Are all components in this kit aftermarket?
A: Yes, the kit includes high-quality aftermarket parts engineered for OEM-level performance.
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Q: Is machining required for installation?
A: No machining is needed—this is a direct replacement for stock bore engines.
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Q: Are the Viton valve stem seals better than OEM?
A: Viton seals offer superior heat resistance and longevity compared to standard rubber seals.
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Q: Will this kit work on a big bore cylinder?
A: No, this kit is specifically sized for stock bore applications only.
🌟 Why Buy from BPRATV? Trusted Performance Experts 🌟
At BPRATV, our promise is unwavering: The Best Parts. The Best Performance. The Best Price. We specialize in premium engine components that deliver reliability and power you can trust. Whether you ride a YZ450F or WR450F, our products are built to keep your machine performing at its peak. Trust BPRATV to keep your Yamaha running at its best, every single time.
Rebuild your Yamaha the right way — order your gasket kit today!
BPRATV - The Best Parts. The Best Performance. The Best Price.
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© BPRATV LLC 1-year limited warranty from the manufacturer for material or workmanship defects.*
Due to the nature of high performance and racing applications, BPRATV LLC components are sold without express warranty or any implied warranty of merchantability or fitness for a specific purpose. BPRATV LLC shall not, under any circumstances, be liable for any specific, incidental or consequential damages, including, but not limited to, damage, or loss of property or equipment, loss of profits or revenue(s), cost of purchased or replacement goods, or claims of customers of the purpose, which may arise and/or shall result from sale, installation or use of these parts. Installation of these parts may void vehicle manufacturers warranty coverage and/or may cause the vehicle to be illegal in some locations.
This product is exempt from the emission standards and related requirements of 40 C.F.R. § 1051 as provided by 40 C.F.R. § 1051.620, and California law [e.g., vehicle code§§ 27156 and 38391]. This product is sold only for use in connection with EPA -certified, purpose-built, nonroad vehicles used solely for closed course, nonroad competition/racing and not used for any recreational purpose or on public highways or right of ways maintained by and open to the public. This product is sold only in connection with machines that do not fall under state and/or federal noise or emission standards/regulations. Purchasers who/that purchase this product represent and warrant that the product is purchased only in connection with EPA -certified, emission-regulations-exempt and noise-regulations-exempt competition/racing vehicles as interpreted under applicable state and/or federal law.
