CRANKSHAFT ASSY 06-13 YFZ450, HOTROD 4073 YAMAHA ATV

Fits Yamaha YFZ450 models from 2004 to 2013, excluding fuel-injected R or X models. The crankshaft assembly features a heavy-duty design, with a +1.4mm stroke for 2004-2005 models to achieve a true 450cc displacement. For 2006-2008 models, the standard stroke design is retained. The crankshaft uses a stock piston for straightforward installation. When paired with Cylinder Works #21001-K01, the engine's displacement increases to 478cc.

Features:

• Heavy-duty crankshaft design with precise engineering.
• Factory-assembled and trued to meet or exceed OEM specifications.
• Includes Hot Rods connecting rod and inner crankshaft webs.
• Fully rebuildable for long-term reliability.
• Compatible with stock pistons for quick installation.
• Increases engine stroke by 1.4mm (04-05 models) to achieve 450cc displacement.
• Provides 478cc displacement when used with Cylinder Works #21001-K01.
• Not compatible with fuel-injected R or X models.

Specifications:

• Final displacement: 450cc (04-05 models, with +1.4mm stroke).
• Stroke: 63.400mm.
• Increased engine stroke: 1.400mm.
• Engine type: 4-cycle.
• Heavy-duty: Yes.
• Connecting rod side clearance: 0.2-0.55mm.
• Completely bolt-in and ready for use.

Cross-reference OEM Part Numbers:

• Yamaha: 5TG-11400-10-00
• Yamaha: 5TG-11400-30-00
• Yamaha: 5TG-11400-31-00
• Yamaha: 5TG-11412-10-00
• Yamaha: 5TG-11412-30-00
• Yamaha: 5TG-11422-10-00
• Yamaha: 5TG-11422-30-00

Vehicle Compatibility:

• 2004-2013 Yamaha YFZ450
• 2006 Yamaha YFZ450SP 50th Anniversary Edition
• 2006-2007 Yamaha YFZ450BB Bill Ballance Edition
• 2007 Yamaha YFZ450SE Special Edition
• 2007 Yamaha YFZ450SE2 Special Edition 2
• 2008 Yamaha YFZ450SP Special Edition
• 2008 Yamaha YFZ450SP2 Special Edition 2

Part Number: 56-281

Dispatch Times

Local Stock: Dispatches in < 24 hours

Parts showing as available at our Warehouse in Gorey ship the same business day if ordered before 1pm. 

Supplier Stock: Dispatches in 2-4 Days

Parts showing as available at our Supplier Warehouse are ordered from our supplier and delivered to us before we can dispatch. More info is available on this page under "Stock Availability".

OEM Special Order: Dispatches in 3-10 Days

This website does not have access to live stock levels from our OEM Suppliers. In most cases the parts will be available but in the case of backordered parts we will notify you. We receive parts from Yamaha in 3-4 days, All others including Honda, Suzuki, Kawasaki, Polaris please allow 7-10 days for us to receive the parts. 

Delivery Times

Ireland & Northern Ireland:

1-2 Days using GLS/An Post

Germany, France, Netherlands, Belgium:

3-5 Days using GLS/Fedex

Italy, Spain & Other EU Countries:

4-7 Days using GLS/Fedex