Vertex Engine Rebuild Kit WR101-147 — Yamaha YFZ450R / YFZ450X 2009-2013

Vertex Engine Rebuild Kit WR101-147 — Yamaha YFZ450R / YFZ450X 2009-2013

Product Description

The Vertex Engine Rebuild Kit WR101-147 is the ultimate total-restoration solution for your Yamaha YFZ450R and YFZ450X. Built to support high-performance racing and demanding off-road use, this all-inclusive kit provides the necessary components to bring your 450cc engine back to factory-fresh reliability.

Vertex simplifies your rebuild process by bundling high-quality, matched components into one convenient package. By replacing your crank, piston, bearings, and gaskets simultaneously, you ensure that every part of your engine is synchronized for maximum durability and consistent power delivery.

Top Features: Vertex Engine Rebuild Kit

• All-In-One Restoration: Contains crankshaft, piston kit, complete engine gasket kit, oil seals, main bearings, and transmission bearings.
• Engine Longevity: Includes vital maintenance components like the water pump rebuild kit, countershaft bushing/seal kit, and cam chain.
• Factory-Grade Precision: Each part is manufactured to meet or exceed OEM specifications for flawless fitment.
• Standard Compression: Piston kit designed to restore original power output and engine characteristics.
• Comprehensive Reliability: Includes counter-balancer bearings (where applicable) to ensure vibration-free, smooth operation.

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

Fitment List

Year Range	Vehicle Brand	Vehicle Model & Sub-Model
2009-2013	Yamaha	YFZ450R
2010-2011	Yamaha	YFZ450X

Frequently Asked Questions

Q: Does this kit include the seals required for the transmission and crankshaft?
A: Yes, this kit is a complete engine rebuild set, including all necessary main bearings, transmission bearings, and oil seals for a full bottom-and-top-end service.

Q: Is this kit suitable for high-revving racing applications?
A: Yes, the Vertex WR101-147 kit uses high-quality materials designed for performance and reliability under demanding race conditions, making it an excellent choice for YFZ450 owners.

Expert Pro-Tip: Before assembling, ensure the engine cases and all oil passages are completely free of debris or old gasket material. We highly recommend using a high-quality engine assembly lube on all bearings and the piston skirt during the break-in process to prevent premature wear and ensure a long, healthy engine life.

Recommended Pairings:

• Essential Off-Road ATV Tools
• Premium ATV Maintenance Chemicals

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