Vertex Complete Engine Rebuild Kit WR101 - Kawasaki KX250F 2005-2016

Product Description

The Vertex WR101 Complete Engine Rebuild Kit lineup offers a total, single-box overhaul solution for the 4-stroke engine on your Kawasaki KX250F. Designed specifically for off-road and motocross racing, these complete packages eliminate the need to track down individual components by supplying the critical rotating assembly, precision valvetrain drive, sealing components, and transmission bearings needed for a thorough bottom-and-top-end rebuild.

Engineered to exact mechanical tolerances, each kit includes a complete crankshaft assembly matched with a standard compression piston kit. To ensure complete sealing and smooth operation, kits come equipped with a complete engine gasket kit with integrated oil seals, main bearings and seals, a water pump rebuild kit, transmission bearings, countershaft bushing and seal kit, and a cam chain (with counter balancer bearings where applicable).

Top Features: Vertex Engine Rebuild Kit

• Includes a complete crankshaft assembly engineered specifically for the 250 cc 4-stroke engine.
• Supplied with a precision-matched standard compression piston kit.
• Includes a complete engine gasket kit with oil seals, main bearings, and main seals for total fluid sealing.
• Comes with a water pump rebuild kit, transmission bearings, countershaft bushing/seal kit, and cam chain to restore all high-wear internal drive systems.

Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.

Fitment List

Frequently Asked Questions

Q: How do I know which Vertex part number to select for my Kawasaki KX250F?
A: Match your exact model year to the fitment table above. For example, choose WR101-040 for 2006-2008 models, WR101-043 for 2011-2013 models, or WR101-175 for 2014-2016 models.

Q: Are all necessary internal seals and gaskets included in the kit?
A: Yes, each kit comes with a complete engine gasket kit with oil seals, main crankshaft bearings and seals, countershaft bushing and seal kit, and water pump rebuild components.

Expert Pro-Tip: When performing a full 4-stroke bottom-end overhaul, make sure to thoroughly inspect and clean the oil pump cavity, pick-up strainers, and internal oil passageways before assembling the cases. Always apply a quality 4-stroke assembly lube to the rod bearings, main bearings, and transmission gears, and always use a dedicated crank puller tool to draw the crankshaft smoothly into the center cases without side-loading the main bearings.

Recommended Pairings:

• Kawasaki KX250F Performance Parts & Upgrades
• Kawasaki 4-Stroke Dirt Bikes Performance Parts
• Motorcycle Tools Performance Parts

At Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. We pride ourselves on great customer service, and every item ships FAST - straight to your door.

Moto-House MX - Choice of Champions - Your premier powersports source with great customer service and lightning-fast shipping straight to your door.