Name: Piston Kit 74.00 CR 9.5:1 YFM250RX 08-13, XT250 13-19, Wiseco 4951M07400 Yamaha ATV
Brand: Wiseco
SKU: 56-W4951.7400.WI

Piston Kit 74.00 CR 9.5:1 YFM250RX 08-13, XT250 13-19, Wiseco 4951M07400 Yamaha ATV

Wiseco
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Description

The Wiseco forged piston kit with a 74.00mm bore is designed as a direct replacement for Yamaha YFM250R Raptor (2008–2013), YFM250RX (2008–2013), and XT250 (2013–2019) models. Built in the USA, this high-performance piston is forged for strength and durability, with a moly skirt coating to reduce friction and wear.

Features

Forged piston designed for high strength and resistance to impact and fatigue
Moly skirt coating for reduced friction and improved wear resistance
Manufactured in-house with full control over the forging and machining process
Direct OEM replacement
Made in the USA

Specifications

Displacement: 249 cc
Bore (Standard): 74.00 mm
Actual Bore Diameter: 73.95 mm
Stroke: 58.00 mm
Compression Ratio (Actual): 9.5:1
Skirt Coating: Moly
Bore Oversize: STD

Cross-Reference OEM Part Numbers

Piston: 4951M07400
Part No.: 56-W4951.WI
Ring Set: 2913XA
Locks: CW17 (17mm Round Wire Locks - Set of Two)
Pin: S688 (17 x 42 mm Non-Chromed TW)

Vehicle Fitments

Yamaha YFM250R Raptor 2008–2013
Yamaha YFM250RX 2008–2013
Yamaha XT250 2013–2019

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YFM RAPTOR 250	2008-2013
YAMAHA	XT 250	2013-2020
YAMAHA	XT 250	2013-2019

Piston Kit 74.00 CR 9.5:1 YFM250RX 08-13, XT250 13-19, Wiseco 4951M07400 Yamaha ATV

Wiseco
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The Wiseco forged piston kit with a 74.00mm bore is designed as a direct replacement for Yamaha YFM250R Raptor (2008–2013),... Read more

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SKU: 56-W4951.7400.WI

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Description

The Wiseco forged piston kit with a 74.00mm bore is designed as a direct replacement for Yamaha YFM250R Raptor (2008–2013), YFM250RX (2008–2013), and XT250 (2013–2019) models. Built in the USA, this high-performance piston is forged for strength and durability, with a moly skirt coating to reduce friction and wear.

Features

Forged piston designed for high strength and resistance to impact and fatigue
Moly skirt coating for reduced friction and improved wear resistance
Manufactured in-house with full control over the forging and machining process
Direct OEM replacement
Made in the USA

Specifications

Displacement: 249 cc
Bore (Standard): 74.00 mm
Actual Bore Diameter: 73.95 mm
Stroke: 58.00 mm
Compression Ratio (Actual): 9.5:1
Skirt Coating: Moly
Bore Oversize: STD

Cross-Reference OEM Part Numbers

Piston: 4951M07400
Part No.: 56-W4951.WI
Ring Set: 2913XA
Locks: CW17 (17mm Round Wire Locks - Set of Two)
Pin: S688 (17 x 42 mm Non-Chromed TW)

Vehicle Fitments

Yamaha YFM250R Raptor 2008–2013
Yamaha YFM250RX 2008–2013
Yamaha XT250 2013–2019

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YFM RAPTOR 250	2008-2013
YAMAHA	XT 250	2013-2020
YAMAHA	XT 250	2013-2019

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.