11005-K01, 11005,11005-1, 4899M09600, 1024-2, 30-30920, 30-30950, 30-30953, 4070, 808904, 822312, HC92RH2015112, M2036, M2136, 247613, 91001-HP1-601, 91002-HP1-601, 91022-MT7-003, KN-116, 30-33950, CBK0106, WPC226B,10005,10005-K01,C3139,MX2045,30-33950,30-33850,C3156,CC002,EC210-016,HC92RH2015112,31.1403,H2460027S,H2458027S,M1037,M2037,274190,274189,262283,247614,4905M09600,4899M09600,247613,12251-MEY-671,8660DA,12200-HP1-600,12100-HP1-601,AT-09479
Unleash the full potential of your ‘06-‘14 Honda TRX450R or TRX450ER with this 99mm 480cc Big Bore Cylinder Kit With BPRATV Custom CP Carrillo 12.5:1 Pump Gas Piston! This is the ultimate top-end rebuild kit, meticulously designed to give you a dominant, reliable powerband. Don't be fooled by other sellers claiming their 2-ring CRF450R pistons are for the TRX450R; our custom 3-Ring piston is the ONLY 99mm Pump Gas CP Carrillo Piston Kit designed specifically for your ATV. This is the complete kit for maximum performance, durability, and a massive boost to 480cc displacement!
This top-tier rebuild kit is packed with high-quality components for peak performance and longevity. It includes a 99mm Nikasil Big Bore Cylinder, designed for optimal compression and cooling, and is backed by a 1 Year Warranty*. The heart of this kit is a custom BPRATV TRUE 3-Ring CP Carrillo 12.5:1 Piston Kit, crafted from high-quality forged aluminum for superior strength and longevity. It comes complete with a piston, wristpin, piston rings, and circlips for a perfect fit. For a reliable, leak-free seal, a comprehensive Cometic Complete Top End Gasket Set is included, which features a durable **Big Bore MLS Head Gasket**. All components are proudly made in USA, guaranteeing a blend of top-tier quality and craftsmanship for a truly dominant rebuild.
This Big Bore Cylinder Kit is engineered for a precise and hassle-free engine overhaul on your Honda TRX450R. It fits Honda TRX450R & TRX450ER Models from 2006 through 2014. This kit is a direct bolt-on solution with no machining required, and it will work perfectly with your stock head and valves. Invest in this ultimate rebuild kit to restore factory-level precision, enhance durability, and enjoy the dominant power of a 99mm big bore kit. The original manufacturer’s warranty applies to all parts, providing you with a fresh start for your TRX450R’s engine!
A: This kit is a significant upgrade because its custom CP Carrillo 12.5:1 compression piston has a 3-Ring design, specifically optimized for standard pump gas and superior sealing in the TRX450R. The 99mm bore of the included Nikasil cylinder provides a massive displacement increase to an incredible **480cc**.
A: This kit provides a true Honda TRX450R piston, not a CRF450 piston. Many other sellers list 2-ring CRF450 pistons, which are not designed for the TRX450R. Our piston has a custom 3-Ring design for superior sealing and reliability, which is crucial for the TRX450R's engine architecture.
A: This kit is comprehensive, covering all essential top-end components. It includes a 99mm Nikasil Big Bore Cylinder, a Custom CP Carrillo 12.5:1 Forged Piston Kit (with a 3-Ring piston ring set, pin, rings, and clips), and a complete Cometic Top End Gasket Set with a Big Bore Head Gasket.
A: This kit is compatible with all Honda TRX450R and TRX450ER models manufactured between 2006 and 2014. It is a bolt-on solution with no machining required, ensuring a straightforward and hassle-free rebuild process.
At BPRATV, our promise is unwavering: The Best Parts. The Best Performance. The Best Price. This TRX450R Big Bore Kit exemplifies our dedication to providing high-quality, essential components that guarantee your machine's longevity and peak performance. We share your passion for riding and are committed to ensuring your Honda runs flawlessly, whether you're dominating the trails or maintaining it for reliable performance. Trust BPRATV to deliver the parts you need to keep your TRX450R performing its best, every single time.
Upgrade your TRX450R today & unleash its dominant power! 🏁
BPRATV - The Best Parts. The Best Performance. The Best Price.
BRAPPPPPPPPPP!
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NOTICE REGARDING PHOTOS: Product photos used in our listings are for example only to show the high quality of our components. You will receive the correct quantity, size, and fitment of bearings, titanium fasteners, nuts, and bolts for the specific kit listed.
BEARING NOTICE: In some cases, you may receive SEALED bearings. If your application requires an OPEN bearing, the seals can easily be removed.
EMISSIONS & RACE USE ONLY: This product is exempt from emission standards and 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]. Sold ONLY for use with EPA-certified, purpose-built, nonroad vehicles used solely for closed course, nonroad competition/racing. Installation may void vehicle manufacturers' warranty and/or may be illegal in some locations.
WARRANTY & LIABILITY: © BPRATV LLC 1-year limited warranty from manufacturer for material/workmanship defects.* Due to the nature of high performance and racing, components are sold without express/implied warranty of merchantability or fitness for a specific purpose. BPRATV LLC shall not be liable for specific, incidental, or consequential damages (loss of property, equipment, profits, or revenue) resulting from sale, installation, or use of these parts. This product is NOT DIY; we strongly recommend work be done by a qualified, experienced mechanic.
RETURNS: Returns accepted within 30 days for items 100% complete, brand new, and in original packaging. Items installed or prepped (lubricated/sealed) are ineligible. For warranty consideration, parts MUST be sent back for physical inspection. No exceptions. We do not warranty based on photos, emails, or third-party assessments.
SPECIALTY WARRANTIES: Cub Cylinders: Lifetime warranty for original owner via BPRATV/Millennium Technologies inspection; covers cylinder only. Titanium Fasteners: Failure during use results in replacement only. Neither warranty covers improper tuning, installation, maintenance, or misuse.
INTERCHANGEABLE PARTS: We may substitute parts of equal quality from different manufacturers to prevent backorder delays. Prices and listings subject to change without notice.
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