Yamaha YZ450F 2006-2009 / WR450F 2006-2013 Top End Kit 95mm
This new top end kit is listed for Yamaha YZ450F (2006–2009) and WR450F (2006–2013) models. It is described as including a 95mm Nikasil cylinder, piston, and gasket set—check the listing for details on what’s included and any fitment notes. Ideal for a top-end rebuild or replacement when servicing a compatible engine. The item ships with free shipping; check the listing for estimated delivery time, carrier, and any exclusions or return terms.
| Location | Upland US |
| Shipping | Free shipping (check listing for details) |
| Seller |
bpratv
99.9% positive · 22153 feedback
|
| Listing | FixedPrice · Active |
| Start time | 2025-06-30T03:15:39.000Z |
| Brand | Wiseco, Cometic, Wossner, BPRATV, Yamaha WR450F YZ450F WR YZ 450F |
| Manufacturer Part Number | 20003, 20003, 8630DA, 4785M09500 , 4786M09500, C7908, 71014-5, 2S2-11181-00-00, 2S2-11311-00-00 2S2-11311-10-00 2S2-11311-11-00 2S2-11311-20-00 2, 2S2-11631-20 5TJ-11631-00 2S2-11631-10, 4785M09500, 4786M09500, 5TA-11311-00-00, 2S2-11311-00-00, 2S2-11311-20-00,2S2-11311-30-00, 8630DA, C7908, MX-09159 |
| Compatible Year | 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, '06-09 YZ450F models, '06-13 WR450F models |
| Compatible Model | YZ450F, WR450F |
| Placement on Vehicle | Front, Left, Rear, Right |
| Material | Aluminum, Stainless Steel, Steel, MLS, AFM |
| Color | Multicolor |
| OE/OEM Part Number | 2S2-11181-00-00, 2S2-11311-00-00 2S2-11311-10-00 2S2-11311-11-00 2S2-11311-20-00 2, 2S2-11631-20 5TJ-11631-00 2S2-11631-10, 5TA-11311-00-00, 2S2-11311-00-00, 2S2-11311-20-00,2S2-11311-30-00 |
| Compatible Make | For Yamaha |
| Item Diameter | 95 mm |
| Machine Type | Dual Sport Motorcycle, Off-road Motorcycle, Scooter, Street Motorcycle |
| Performance Part | Yes |
| Country/Region of Manufacture | United States |
| Manufacturer Warranty | 1 Year |
| Type | Engine Rebuild Kit |
| Engine Type | 4-Stroke |
| Features | The Best Parts. The Best Performance. The Best Price. |
| MPN | 20003, 8630DA, 4785M09500 , 4786M09500, C7908, 71014-5 |
Yamaha YZ450F 06-09 WR450F 06-13 Top End Kit 95mm Nikasil Cylinder Piston Gasket a,a:hover,a:active,a:visited Yamaha YZ450F 06-09 WR450F 06-13 Top End Kit 95mm Nikasil Cylinder Piston Gasket 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 🔥 06-09 YZ450F Top End Rebuild Kit 95mm Cylinder Piston Cometic 🔥 🛠️ Restore Peak Power: Bring Your YZ450F / WR450F Engine Back to Life! 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! ✅ High-Quality Components for Durability & Optimal Sealing: Built to Perform! 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. BPRATV 95mm stock bore Nikasil cylinder (1-year warranty)* for superior durability. 95mm Wiseco or Wossner forged piston kit* for strength and performance. Includes Nitrite-coated piston rings, wrist pin, and Circlips. Complete Cometic Top-end gasket kit with an MLS head gasket. Designed to run on both pump or race gas. 📦 Broad Compatibility & Easy Installation: Get Riding Sooner! 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. Works on ALL '06-09 YZ450F models. Also compatible with '06-13 WR450F models. Designed for stock standard bore engines (95mm). No modifications required for installation. 🌟 Why Choose BPRATV? Your Trusted Performance Partner! 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! © BPRATV LLC * 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.) DO YOU NEED TO HAVE THIS ITEM INSTALLED ON YOUR VEHICLE? WE HAVE YOU COVERED! CONTACT US FOR DETAILSWe are BPRATV, offering you the best in parts and service for over 20 years. If you need your vehicle repaired, parts, or you just have technical questions call, email, or come see us at our Upland, CA location Mon to Fri 7 am to 4 pm, PST. We accept payment via credit card, PayPal, Venmo, Cash App, and in person via cash or check (once cleared).PRICES AND LISTINGS ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE.REPAIR SHOPS AND DEALERS CONTACT US TO SET UP AN ACCOUNT AND GET A DISCOUNT ON ALL YOUR ORDERSWE SHIP WORLDWIDE AND WE PROCESS ORDERS 7 DAYS A WEEK. TAMBIEN HABLAMOS ESPANOL!*Interchangeable part: We stock the same parts from different manufacturers so that when back orders occur, we have a part that is equal in quality and cost to send, preventing what can sometimes be long waits. This would be the only reason your order might vary slightly from the description, and the part that is subbed will always be comparable quality. If you only want a specific brand, just ask and we will let you know if it is out of stock and for how long.**Returns: We accept returns for part or all of your order within the first 30 days. Refunds are only granted for parts that are returned 100% complete, brand new, in the original packaging. Once a part has been installed or prepped for installation it is no longer eligible for return.**Warranty: This product is NOT DIY. Over 99% of people in the world are not qualified to build an engine, and it is the responsibility of the person assembling and tuning the engine to make sure all the parts are correct and work properly. We ALWAYS STRONGLY recommend work be done by a qualified, experienced mechanic. For any warranty to be considered the part(s) in question must be sent back to us for inspection, NO EXCEPTIONS. We cannot warranty anything based on photos, emails, phone calls, what you read online alone, or what another mechanic says the problem is alone. Warranty does not cover any failure that is a result of improper installation, tuning, break-in, lack of maintenance, or misuse.Feedback: Positive feedback is greatly appreciated. We work very hard to maintain a high feedback rating, and we want all of our customers to be happy. Receiving positive feedback when an order goes the way it is supposed to is a huge help. If you do not feel we deserve positive feedback PLEASE contact us prior to leaving feedback and we will do what is needed to help you feel as "positive" as possible about your experience. Please work with us and we will ALWAYS work with you.Cub cylinder warranty: All CP Industries Yamaha Banshee Monoblock cylinders purchased from BPRATV come with a LIFETIME WARRANTY. If the cylinder you purchased from us fails for any reason that is not related to improper installation, tuning, break-in, lack of maintenance, or abuse we will either have it REPAIRED OR REPLACED FREE OF CHARGE. The cylinder must be sent back with proof of purchase for inspection by us and Millennium Technologies (NO EXCEPTIONS). The warranty is for the cylinder only. No other parts nor any labor are included. The warranty cannot be converted to a discount or refund, nor will a reparable cylinder be exchanged for a new one. The warranty applies to the original owner of the cylinder only. The warranty does not cover any failure that is a result of improper installation, tuning, break-in, maintenance, or misuse. For any warranty to be considered the part(s) in question must first be sent back to us for inspection, NO EXCEPTIONS. We do not warranty parts based on phone calls, photos, emails, what you read online, or another mechanic's assessment alone.We are BPRATV, and we offer a huge selection of Titanium fasteners. Call, email, or visit us at our Upland, CA location Monday to Friday, 7 am to 4 pm, PST.Returns: We accept returns within 30 days. You can return all or part of your order, as long as any items for which a refund is requested are returned to us brand new, never used, in the original packaging. Once an item has been used (or prepped for use with lubricants, sealant, etc.) it is not eligible for return.*If a Ti fastener purchased from us fails for any reason during use it will be replaced with a new one. The warranty cannot be converted to a refund or discount of any kind, and the warranty does not cover any failure that is a result of improper installation or misuse. For any fastener to be covered by warranty it must first be sent to us for inspection. We do not warranty parts based on phone calls, photos, emails, what you read online, or what another seller, mechanic, or technician claims the issue is.