20003, 8630DA, 4785M09500 , 4786M09500, C7908,2S2-11311-40-00,5TA-11181-00-00,5TA-11351-00-00,5TA-11311-00-00, 2S2-11311-00-00, 2S2-11311-20-00,2S2-11311-30-00
Revitalize your 2006-2009 Yamaha YZ450F or 2006-2013 WR450F with our premium Top End Rebuild Kit! This comprehensive kit provides everything you need to restore your engine to factory-fresh performance, ensuring crisp throttle response, reliable power delivery, and a smooth running engine. Say goodbye to worn components and experience the thrill of a responsive and strong ATV or dirt bike. Get ready to hit the track or trails with renewed confidence!
This kit features a durable BPRATV 95mm stock bore Nikasil cylinder, ensuring excellent wear resistance and heat dissipation, backed by a 1-year warranty for your peace of mind*. At its core is a high-strength 95mm Wiseco or Wossner forged piston kit, known for superior durability and performance under demanding conditions. The piston comes complete with nitride-coated piston rings for optimal sealing, a chrome wrist pin, and circlips for a secure assembly. To complete the package, you'll receive a full Cometic Top-end gasket kit with a multi-layered steel (MLS) head gasket, providing an unbeatable seal for high-compression environments.
This complete top end rebuild kit is designed for widespread compatibility, working seamlessly on ALL '06-09 Yamaha YZ450F models and '06-13 WR450F models. All components are engineered for a direct fit, meaning no complex modifications are required, making the installation process straightforward and efficient. Get your motorcycle or ATV back in action quickly and reliably with this all-inclusive kit.
At BPRATV, we are committed to providing The Best Parts. The Best Performance. The Best Price. This YZ450F / WR450F Top End Rebuild Kit reflects our dedication to quality, offering robust components and a 1-year warranty for your peace of mind*. Invest in the longevity and performance of your Yamaha with a kit you can trust.
Rebuild with confidence—get your YZ/WR450F roaring today! 🏁
BPRATV - The Best Parts. The Best Performance. The Best Price.
BRAPPPPPPPPPP!
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* 06-09 YZ450F Top End Rebuild Kit 95mm Cylinder Piston Cometic Gaskets NEW * Yamaha YZ450F 06-09 WR450F 06-13 Top End Kit Nikasil Cylinder Piston * NEW YZ450F 95mm Stock Bore Top End Rebuild Kit Wiseco/Wossner Piston Cometic * WR450F 2006-2013 Top End Rebuild Kit 95mm Nikasil Cylinder Gaskets OEM * Yamaha YZ450F WR450F Top End Kit 95mm Cylinder Piston Gaskets 1 Year Wty --- ### Recommended eBay Product Category: * Parts & Accessories > Motorcycle Parts > Engines & Engine Parts > Engine Rebuilding Kits --- ### Recommended Secondary Category: * Parts & Accessories > Motorcycle Parts > Engines & Engine Parts > Cylinders --- ### H1 Headings (Max 7 words): * YZ450F Top End Rebuild Kit * WR450F Engine Restoration Kit * 95mm Nikasil Cylinder Piston * Restore Yamaha 450F Power * Complete Top End Solution --- ### Broad Match Keywords Used: * Yamaha YZ450F Top End Rebuild Kit * WR450F Top End Rebuild Kit * Stock Standard Bore Cylinder Piston Kit * BPRATV 95mm Nikasil cylinder * Wiseco or Wossner forged piston kit * Nitrite-coated piston rings * Chrome wrist pin * Circlips * Cometic Top-end gasket kit * MLS head gasket * Pump or race gas compatible * YZ450F 2006-2009 models * WR450F 2006-2013 models * 1-year warranty * Engine overhaul kit * Dirt bike engine parts * ATV engine components * Cylinder replacement * Piston replacement * Gasket set --- ### Meta Title: 06-09 YZ450F / 06-13 WR450F: 95mm Top End Rebuild Kit w/Cometic! --- ### Meta Description: Restore your 06-09 YZ450F or 06-13 WR450F with our 95mm Top End Rebuild Kit! Features BPRATV Nikasil cylinder, Wiseco/Wossner piston, and Cometic MLS head gasket. 1-year warranty, runs on pump/race gas. --- ### OEM Cross Reference: OEM Cylinder replaces: 5TA-11311-00-00, 2S2-11311-00-00, 2S2-11311-20-00, 2S2-11311-30-00, 2S2-11311-40-00. (Note: BPRATV cylinder is a stock bore Nikasil replacement/upgrade). OEM Piston replaced by Wiseco or Wossner forged piston kit. OEM Top End Gaskets replaced by Cometic Top-end gasket kit: 5TA-11181-00-00 (Head Gasket), 5TA-11351-00-00 (Base Gasket), 5TG-12119-00-00 (Valve Stem Seal). (This kit provides an all-inclusive solution for the listed OEM components and related parts for a complete top end rebuild.)
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Professional installation by a qualified technician is recommended for best results.
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Notice Regarding Photos: Product photos used in our listings are for example only to show item quality, components, and visual reference. You will receive the correct quantity, size, and fitment for the specific kit listed. Exact brands, finishes, packaging, or small components may vary when equivalent-quality parts are used. Please read the full product description for exact details before purchasing.
Bearing Notice: In some cases, you may receive sealed bearings. If your application requires an open bearing, the seals can be removed when appropriate for the application.
Emissions & Race Use Only: Some products may be exempt from emission standards and requirements under 40 C.F.R. § 1051.620 and/or applicable California law. Certain parts are sold only for use with EPA-certified, purpose-built, nonroad vehicles used solely for closed-course, nonroad competition/racing. Installation may void the vehicle manufacturer's warranty and/or may be illegal in some locations. Buyer is responsible for confirming legal use in their application and location.
Warranty & Liability: Due to the nature of high-performance and racing applications, components may be sold without express or implied warranty of merchantability or fitness for a specific purpose except where specifically stated. BPRATV LLC shall not be liable for special, incidental, or consequential damages including loss of property, equipment, profits, or revenue resulting from sale, installation, or use of these parts. High-performance parts are not DIY items; work should be performed by a qualified, experienced mechanic.
Returns: Returns are accepted within 30 days for eligible items that are 100% complete, brand new, unused, uninstalled, and in original packaging. Items that have been installed, prepped, lubricated, sealed, modified, or used are not eligible. For warranty consideration, parts must be sent back for physical inspection. We do not warranty based on photos, emails, or third-party assessments.
Specialty Warranties: Certain specialty items, such as Cub cylinders or titanium fasteners, may have separate warranty terms. Any warranty does not cover improper tuning, installation, maintenance, or misuse.
Interchangeable Parts: Some kits may include interchangeable components or equivalent-quality substitutions to prevent backorder delays. Prices, included items, and listings are subject to change without notice.
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