2023 YAMAHA YZ250F - Complete Engine - A detailed invoice of the rebuild showing parts installed and services performed will be provided AFTER the sale is made to the buyer. Engine fits 2019-2025 YZ250F Chassis Professionally serviced by Dynamic Engine Factory (Parts listed are NEW!) Cylinder Head (Bone Stock): Spark Plug, Valve Train, Valves, Springs, Cams and Cam Chain OEM Cylinder JE 14.0 Compression Ratio Piston Crankshaft - Fitted w/ Wiseco Racer Elite Rod: (This is the CP CARRILLO Equivalent, we do not use OEM rods in any YZ250F due to failure risk) Cerakoted Engine Covers Vapor Blasted Cases and Cylinder Nickel-Plated Engine Hardware Bearings, Gaskets, Seals & Oil Filter Works Connection Engine Plugs Counter Sprocket OEM Clutch Pack Essentially, the used components on this engine are the cases and transmission, clutch basket, inner hub, pressure plate and few of the drivetrain components. The cases and a some of the components inside have approximately 3-5 hours. The is a very fresh and solid platform ready for hours and hours of abuse. Dyno Tested: This engine has been dyno tested on our test bike to guarantee proper assembly and performance. A detailed printout of the dyno chart will be provided to the buyer Warranty Information: While we do not offer an explicit warranty, we stand behind our work. Should you encounter any issues, please contact us first and immediately—we're here to help! Shipping Details: The engine will ship anywhere, and an engine shipping box is included in the sale for safe delivery. The buyer is responsible for shipping cost. Additional Information: If you have specific questions, please message us, and we will be happy to answer them!