Yamaha YZ 450 F (CJ 03) [2003] - WÖSSNER Pro Series forged pistons
![Yamaha YZ 450 F (CJ 03) [2003] - WÖSSNER Pro Series forged pistons](http://motorize.uk/cdn/shop/files/1093775001-1_27460a67-bee9-49f3-9e59-1bd2a5373cb3.jpg?v=1788438590&width=900)
![Yamaha YZ 450 F (CJ 03) [2003] - WÖSSNER Pro Series forged pistons](http://motorize.uk/cdn/shop/files/1093775001-2_54c1917e-e9f9-4730-8958-9b1fc744faf4.jpg?v=1788438590&width=900)
![Yamaha YZ 450 F (CJ 03) [2003] - WÖSSNER Pro Series forged pistons](http://motorize.uk/cdn/shop/files/1093775001-3_3220be85-2e40-4e71-a007-5d9d17296c88.jpg?v=1788438590&width=900)
![Yamaha YZ 450 F (CJ 03) [2003] - WÖSSNER Pro Series forged pistons](http://motorize.uk/cdn/shop/files/1093775001-4_131a3913-7f17-4c8f-898d-ee6e01a9a9a6.jpg?v=1788438590&width=900)
![Yamaha YZ 450 F (CJ 03) [2003] - WÖSSNER Pro Series forged pistons](http://motorize.uk/cdn/shop/files/1093775001-5_74476142-f90b-456a-bcc8-b5b8166f4c38.jpg?v=1788438590&width=900)
![Yamaha YZ 450 F (CJ 03) [2003] - WÖSSNER Pro Series forged pistons](http://motorize.uk/cdn/shop/files/1093775001-6_189499e6-fe40-4ff1-9e96-0e09c24fc727.jpg?v=1788438590&width=900)
![Yamaha YZ 450 F (CJ 03) [2003] - WÖSSNER Pro Series forged pistons](http://motorize.uk/cdn/shop/files/1093775001-7_a692dee9-6398-4908-8046-8b85df676562.jpg?v=1788438590&width=900)
![Yamaha YZ 450 F (CJ 03) [2003] - WÖSSNER Pro Series forged pistons](http://motorize.uk/cdn/shop/files/1093775001-8_523697d4-4be1-450c-bf97-9bab02fcfbc2.jpg?v=1788438590&width=900)
Description
WÖSSNER Pro Series forged pistons for Yamaha YZ 450 F (CJ 03)
The WÖSSNER Pro Series forged piston is designed for the Yamaha YZ 450 F (CJ 03), built in 2003. It therefore offers a clearly defined selection for repairing or building the right engine within this model and year of construction.
![Yamaha YZ 450 F (CJ 03) [2003] - WÖSSNER Pro Series forged pistons – product view](https://cdn.shopify.com/s/files/1/0871/4616/8646/files/1093775001-1_27460a67-bee9-49f3-9e59-1bd2a5373cb3.jpg?v=1788438590)
Design and technical features
- Piston Type: Forged
- Material: aluminum
- Piston compression: high compression
- Diameter Ø: 94.96 mm
- Bore diameter: 95.00 mm
- Compression ratio: 13.5:1
- Letter oversize: A
- Oversize: STD
- Rings Quantity: 2
- Stroke: 2T
Suitable for this vehicle
The vehicle assignment is Yamaha YZ 450 F (CJ 03), built in 2003. The dimensions and markings provided help with the selection: The piston is shown with a diameter of 94.96 mm, a bore diameter of 95.00 mm, the letter A as oversize and the information STD for oversize.
Technical selection
The compression ratio of 13.5:1 and the design as a high-compression, forged aluminum piston characterize the technical configuration of this component. The specification of 2 rings and “Stroke: 2T” supplements the product specification and makes it easier to compare it with the intended engine application.
![Yamaha YZ 450 F (CJ 03) [2003] - WÖSSNER Pro Series forged pistons – detailed view](https://cdn.shopify.com/s/files/1/0871/4616/8646/files/1093775001-2_54c1917e-e9f9-4730-8958-9b1fc744faf4.jpg?v=1788438590)
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