Wiseco Crank Piston BPRATV Cylinder Kit Yamaha YFZ450 Carb Engine Rebuild WPC231

Yamaha YFZ450 Stock Bore Engine Rebuild Kit – Wiseco Crank, Piston & Cylinder

Complete Bottom End & Top End Rebuild Solution

Restore factory power and long-term reliability with the BPRATV / Wiseco / Cometic Yamaha YFZ450 Engine Rebuild Kit, featuring premium components from Wiseco, Cometic, NTN, Koyo, and BPRATV. This kit is engineered for riders who demand OEM-level fitment with race-proven durability.

🔥 Key Features & Benefits

Designed for serious riders and builders, this kit includes everything needed for a full engine rebuild using direct bolt-on components—no guesswork, no shortcuts.

• Stock bore design maintains OEM compression and reliability
• Wiseco forged internals for maximum strength and longevity
• Nikasil plated cylinder for superior heat transfer and wear resistance
• Complete gasket and seal coverage for top and bottom end rebuild
• Backed by a full 1-year manufacturer warranty

📦 Complete List of Included Parts

This kit includes all critical components required to rebuild your Yamaha YFZ450 engine from the crankshaft up.

• BPRATV 95mm stock bore Nikasil plated cylinder (1-year warranty)
• Wiseco 12:1 compression 95mm stock bore forged piston
• Wiseco piston ring set
• Wiseco piston circlips
• Wiseco heavy duty complete assembled crankshaft with connecting rod
• Wiseco heavy duty main bearings (Koyo or NTN – Made in Japan)
• Cometic complete top end gasket kit
• Viton valve stem seals
• Wiseco complete bottom end gasket kit (manufactured by Cometic or Athena)
• Wiseco complete bottom end engine seal kit (manufactured by Cometic or Athena)
• BPRATV Talon heavy duty OEM replacement cam timing chain

✅ Compatibility

Designed specifically for carbureted Yamaha YFZ450 models, ensuring precise fitment and reliable performance.

• Yamaha YFZ450 Carbureted Models
• Model Years: 2004
• Model Years: 2005
• Model Years: 2006–2009
• Model Years: 2012–2013

❓ Frequently Asked Questions (FAQ)

• Q: Does this kit require machine work?

  A: No. This is a stock bore, direct bolt-on rebuild kit.

• Q: Is the crankshaft fully assembled?

  A: Yes. The Wiseco crank comes fully assembled and ready to install.

• Q: Are all gaskets and seals included?

  A: Yes. Complete top end and bottom end gasket and seal kits are included.

• Q: What warranty is included?

  A: Includes a 1-year manufacturer warranty for peace of mind.

🌟 Why Buy from BPRATV? Trusted Performance Experts 🌟

At BPRATV, our promise is unwavering: The Best Parts. The Best Performance. The Best Price. Every rebuild kit is assembled with industry-leading components and real-world riding experience. Trust BPRATV to keep your Yamaha YFZ450 running at its best, every single time.

Rebuild with confidence — order your BPRATV YFZ450 engine kit today!

BPRATV - The Best Parts. The Best Performance. The Best Price.

BRAPPPPPPPPPP!

© BPRATV LLC 1-year limited warranty from the manufacturer for material or workmanship defects.*

Due to the nature of high performance and racing applications, BPRATV LLC components are sold without express warranty or any implied warranty of merchantability or fitness for a specific purpose. BPRATV LLC shall not be liable for incidental or consequential damages. Installation may void manufacturer warranty and may be illegal in some locations. This product is sold for closed-course competition use only and is exempt from EPA emission standards under applicable regulations.