Honda TRX400EX/TRX400X/XR400R 0.027" MLS Cylinder Head Gasket 86mm 85mm OEM Bore
Replace your TRX400EX head gasket with Cometic MLS. Fits 85-86mm bore, .027 thickness, durable and high performance.
Cometic Honda TRX400EX TRX400X XR400R MLS Head Gasket .027 85mm 86mm
📖 Product Description
Upgrade your engine reliability with the Cometic MLS Head Gasket designed specifically for Honda TRX400EX, TRX400X, and XR400R models. Built in the USA using advanced multi-layer steel (MLS) technology, this gasket delivers superior sealing, durability, and heat resistance for both stock and performance builds.
📦 Packaging Notice
Please Note: As an authorized distributor, we purchase Cometic gaskets in bulk to provide the best pricing possible. Your gasket may not arrive in retail packaging, but rest assured you will always receive a 100% genuine Cometic MLS head gasket—brand new, unused, and built to the same high-performance standards.
🔥 Key Features & Benefits
Engineered for precision sealing and long-lasting performance, this Cometic MLS gasket is the trusted choice for riders demanding reliability under extreme conditions.
- MLS construction with 3 layers for maximum sealing strength
- .027 compressed thickness for optimal combustion sealing
- 85mm–86mm bore size fits stock cylinder configurations
- Direct OEM replacement for easy, bolt-on installation
- Made in the USA for premium quality and durability
✅ Compatibility
Designed to fit a wide range of Honda ATV and dirt bike models with stock bore configurations.
- Honda TRX400EX – All Years
- Honda TRX400X – All Years
- Honda XR400R – All Years
- Replaces OEM: 12191-KCY-671
- Replaces OEM: 12191-KCY-672 / 12251-HN1-A41
❓ Frequently Asked Questions (FAQ)
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Q: Is this gasket stock bore compatible?
A: Yes, it is designed for 85mm–86mm stock bore engines.
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Q: What material is this gasket made from?
A: It is made from high-quality multi-layer steel (MLS) for superior sealing.
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Q: Will this fit all TRX400EX years?
A: Yes, it fits all years and models of TRX400EX and TRX400X.
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Q: Does it come in original packaging?
A: It may not include retail packaging, but it is always a genuine Cometic gasket.
🌟 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 high-performance ATV components that deliver reliability and power when it matters most. Trust BPRATV to keep your Honda ATV running at its best, every single time.
Upgrade your engine sealing today—order now and ride with confidence!
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© BPRATV LLC
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. This product is sold only for use in connection with EPA-certified, purpose-built, nonroad vehicles used solely for closed-course, nonroad competition/racing.
