Name: Piston Kit 14-15 YZF250 77.02, Forged Wossner 8893DC
Brand: Wossner
SKU: 56-W4961.C.WO

Piston Kit 14-15 YZF250 77.02, Forged Wossner 8893DC

Wossner
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Description

This Wossner forged piston kit, part number 8893DC, features a 77.02mm bore with an actual piston size of 76.98mm (+0.02mm oversize). Designed for TM MX-F450 (2009–2010), MX-Fi450 (2011), and EN-Fi450 (2011), this German-made piston is engineered for performance with high strength, efficient heat transfer, and balanced load distribution through its elliptical profile, offering a compression increase over OEM specifications.

Features

Forged construction for strength and durability in performance applications
Elliptical design supports even thermal expansion and thrust load distribution
Optimized for efficient combustion heat transfer
Made in Germany
Direct OEM replacement
Easy to install; professional installation recommended if unsure

Specifications

Bore Size: 77.02mm
Actual Piston Size: 76.98mm
Displacement: 249cm³
Stroke: 53.60mm
Clearance: 0.05mm
Dome Volume: -3.00cm³
Wossner Compression Ratio: 13.70:1
OEM Compression Ratio: 13.50:1
Compression Height: 20.20mm

Cross-Reference OEM Part Numbers

40116M07700
CW16 (Lock)
WP087 (Pin)
770XAS-2 (Ring Set)

Vehicle Fitments

TM MX-F450 (2009–2010)
TM MX-Fi450 (2011)
TM EN-Fi450 (2011)

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YZF X 250	2015-2019
YAMAHA	WRF 250	2015-2018
YAMAHA	WR F 250	2015-2017
YAMAHA	YZ FX 250	2015-2016
YAMAHA	YZ F 250	2014-2015
YAMAHA	YZF X 250	2015-2016
YAMAHA	WRF 250	2015-2017
YAMAHA	YZF 250	2014-2015
YAMAHA	YZF X 250	2014-2015
YAMAHA	WRF 250	2014-2017

Piston Kit 14-15 YZF250 77.02, Forged Wossner 8893DC

Wossner
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This Wossner forged piston kit, part number 8893DC, features a 77.02mm bore with an actual piston size of 76.98mm (+0.02mm... Read more

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SKU: 56-W4961.C.WO

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Description

This Wossner forged piston kit, part number 8893DC, features a 77.02mm bore with an actual piston size of 76.98mm (+0.02mm oversize). Designed for TM MX-F450 (2009–2010), MX-Fi450 (2011), and EN-Fi450 (2011), this German-made piston is engineered for performance with high strength, efficient heat transfer, and balanced load distribution through its elliptical profile, offering a compression increase over OEM specifications.

Features

Forged construction for strength and durability in performance applications
Elliptical design supports even thermal expansion and thrust load distribution
Optimized for efficient combustion heat transfer
Made in Germany
Direct OEM replacement
Easy to install; professional installation recommended if unsure

Specifications

Bore Size: 77.02mm
Actual Piston Size: 76.98mm
Displacement: 249cm³
Stroke: 53.60mm
Clearance: 0.05mm
Dome Volume: -3.00cm³
Wossner Compression Ratio: 13.70:1
OEM Compression Ratio: 13.50:1
Compression Height: 20.20mm

Cross-Reference OEM Part Numbers

40116M07700
CW16 (Lock)
WP087 (Pin)
770XAS-2 (Ring Set)

Vehicle Fitments

TM MX-F450 (2009–2010)
TM MX-Fi450 (2011)
TM EN-Fi450 (2011)

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YZF X 250	2015-2019
YAMAHA	WRF 250	2015-2018
YAMAHA	WR F 250	2015-2017
YAMAHA	YZ FX 250	2015-2016
YAMAHA	YZ F 250	2014-2015
YAMAHA	YZF X 250	2015-2016
YAMAHA	WRF 250	2015-2017
YAMAHA	YZF 250	2014-2015
YAMAHA	YZF X 250	2014-2015
YAMAHA	WRF 250	2014-2017

Shipping & Delivery

How long will my item take to arrive?

Orders are typically dispatched within 1 working day and are shipped on a 24hour (non-guaranteed) service.

Where do you ship to?

We currently only ship orders within the UK.

How can I track my order?

Once your order has been dispatched, you will receive a tracking code. Tracking information is emailed to the email address that was provided when placing the order.

Can I collect my order?

Unfortunately we do not offer order collections from our fulfilment centre.