52.4mm Cylinder Gasket and Piston Ring Set for CRF125F/CRF125FB, 2014–2023
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Cylinder Works 21003-1 Big Bore Cylinder for Yamaha 450 Models
$573.50
In stock
✓ Free Shipping
Machined Cylinder Works big bore cylinder, part 21003-1, with 480 cc displacement and 3.00 mm over-standard sizing for select Yamaha 450 models.
Price shown is the online purchase price. Free shipping · 30-day return policy
Product Description
Cylinder Works big bore cylinder with a 480 cc displacement, 4-cycle engine design, and 3.00 mm over-standard sizing. Manufacturer part number 21003-1.
Product Specifications
exteriorMachined
BrandCylinder Works
Item Model Number21003-1
Item Weight3.5 pounds
Manufacturer Part Number21003-1
ModelBig Bore Cylinder
OEM Part Number21003-1
Product Dimensions9 x 8.5 x 7 inches
Cylinder kit typeBig Bore
Cylinder diameter98 mm; source also lists 91 mm
Displacement480 cc
Engine type4-Cycle
Size over standard3.00 mm
FinishMachined
Weight3.5 pounds
Motorcycle Compatibility
| Year | Make | Model | Power / Engine | Variant |
|---|---|---|---|---|
| 2006 | Yamaha | YZ 450 F | 4-Cycle | |
| 2007 | Yamaha | WR 450 F | 4-Cycle | |
| 2007 | Yamaha | YZ 450 F | 4-Cycle | |
| 2008 | Yamaha | WR 450 F | 4-Cycle | |
| 2008 | Yamaha | YZ 450 F | 4-Cycle | |
| 2009 | Yamaha | WR 450 F | 4-Cycle | |
| 2009 | Yamaha | YFZ 450 R | 4-Cycle | |
| 2009 | Yamaha | YFZ 450 R | 4-Cycle | SE |
| 2009 | Yamaha | YZ 450 F | 4-Cycle | |
| 2010 | Yamaha | WR 450 F | 4-Cycle | |
| 2010 | Yamaha | YFZ 450 R | 4-Cycle | |
| 2010 | Yamaha | YFZ 450 R | 4-Cycle | SE |
| 2010 | Yamaha | YFZ 450 X | 4-Cycle | |
| 2010 | Yamaha | YFZ 450 X | 4-Cycle | Bill Balance Edition |
| 2011 | Yamaha | WR 450 F | 4-Cycle | |
| 2011 | Yamaha | YFZ 450 R | 4-Cycle | |
| 2011 | Yamaha | YFZ 450 R | 4-Cycle | SE |
| 2011 | Yamaha | YFZ 450 X | 4-Cycle | |
| 2012 | Yamaha | WR 450 F | 4-Cycle | |
| 2012 | Yamaha | YFZ 450 R | 4-Cycle | |
| 2012 | Yamaha | YFZ 450 R | 4-Cycle | SE |
| 2013 | Yamaha | WR 450 F | 4-Cycle | |
| 2013 | Yamaha | YFZ 450 R | 4-Cycle | |
| 2013 | Yamaha | YFZ 450 R | 4-Cycle | SE |
| 2014 | Yamaha | WR 450 F | 4-Cycle | |
| 2014 | Yamaha | YFZ 450 R | 4-Cycle | |
| 2014 | Yamaha | YFZ 450 R | 4-Cycle | SE |
| 2015 | Yamaha | WR 450 F | 4-Cycle | |
| 2015 | Yamaha | YFZ 450 R | 4-Cycle | |
| 2015 | Yamaha | YFZ 450 R | 4-Cycle | SE |
| 2016 | Yamaha | YFZ 450 R | 4-Cycle | |
| 2016 | Yamaha | YFZ 450 R | 4-Cycle | SE |
| 2017 | Yamaha | YFZ 450 | 4-Cycle | |
| 2017 | Yamaha | YFZ 450 R | 4-Cycle | |
| 2017 | Yamaha | YFZ 450 R | 4-Cycle | SE |
| 2018 | Yamaha | YFZ 450 R | 4-Cycle | |
| 2018 | Yamaha | YFZ 450 R | 4-Cycle | SE |
| 2019 | Yamaha | YFZ 450 R | 4-Cycle | |
| 2019 | Yamaha | YFZ 450 R | 4-Cycle | SE |
| 2020 | Yamaha | YFZ 450 R | 4-Cycle | |
| 2020 | Yamaha | YFZ 450 R | 4-Cycle | SE |
| 2021 | Yamaha | YFZ 450 R | 4-Cycle | |
| 2021 | Yamaha | YFZ 450 R | 4-Cycle | SE |
| 2022 | Yamaha | YFZ 450 R | 4-Cycle | |
| 2022 | Yamaha | YFZ 450 R | 4-Cycle | SE |
| 2023 | Yamaha | YFZ 450 R | 4-Cycle | |
| 2023 | Yamaha | YFZ 450 R | 4-Cycle | SE |
| 2024 | Yamaha | YFZ 450 R | 4-Cycle | |
| 2024 | Yamaha | YFZ 450 R | 4-Cycle | SE |
| 2025 | Yamaha | YFZ 450 R | 4-Cycle | |
| 2025 | Yamaha | YFZ 450 R | 4-Cycle | SE |
Always compare the part number, dimensions, specifications, and compatibility details with your original part before ordering.
