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GAEAF10
ATV City  |  SKU: 188.202
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Complete Top End Replacement Cylinder Kit For Yamaha Timberwolf 250 Bear Tracker 1992 2004

Regular price £160.00
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Diolch i'n Cwsmeriaid Gwerthfawr.

Upgrade or rebuild your Yamaha Timberwolf 250 or Bear Tracker 250 with this all-in-one Replacement Cylinder Kit. The kit includes the cylinder, piston, rings, wrist pin, circlips, and gaskets, delivering everything you need for a reliable top-end rebuild. Crafted from high-quality materials for durability and precision, this direct-fit replacement is built to OEM specifications, enabling installation with minimal downtime. Perfect for routine maintenance, performance restoration, or a full engine rebuild, this kit helps your Yamaha run smoothly and efficiently.

Comprehensive Vehicle Fitment

Based on verified aftermarket catalog data and OEM parts information, this cylinder kit fits the following Yamaha models 

Manufacturer Models / Series Years / Details Source
Yamaha Timberwolf 250 YFB250 (2x4) 1992–2000
Yamaha Timberwolf 250 YFB250FW (4x4) 1994–2000
Yamaha Bear Tracker 250 YFM250B 1999–2002
Yamaha Bear Tracker 250 YFM250X 1999–2004
Yamaha Bear Tracker 250 YFM250XH Hunter Edition 2001–2002
Yamaha Moto-4 250 YFM250 1989–1991
Yamaha Moto-4 200DX YFM200DX 1989

 

Detailed Fitment Notes

Years Compatible Models
1992–2000 Yamaha Timberwolf 250 (YFB250 / YFB250FW)
1994–2000 Yamaha Timberwolf 250 4x4 (YFB250FW)
1999–2004 Yamaha Bear Tracker 250 (YFM250B/X)
2001–2002 Yamaha Bear Tracker 250 Hunter Edition (YFM250XH)
1989–1991 Yamaha Moto-4 250 (YFM250)
1989 Yamaha Moto-4 200DX (YFM200DX)

OEM Cross-Reference Information

This aftermarket cylinder kit is designed as a direct replacement for the following Yamaha OEM part numbers 

OEM Part Number Component Source
4BD-11310-01-00 Cylinder Assembly
5VC-11351-01-00 Gasket Set (related)
4BD-11610-20-00 Piston Ring Set
4BD-11636-00-00 Piston (2nd O/S 0.50mm)
4BD-11631-00-Y0 Piston Assembly
29U-11633-00-00 Wrist Pin
93450-17044-00 Circlip

Product Specifications

Specification Details
OEM Reference Part Number 4BD-11310-01-00
Type Complete Cylinder / Top End Kit
Manufacturer Aftermarket
Bore Diameter 71mm (Standard)
Stroke 58mm
Displacement 249cc (standard bore)
Compression Ratio 8.7:1 (OEM specification)
Kit Includes Cylinder, Piston, Rings, Wrist Pin, Circlips, Head Gasket, Base Gasket
Cylinder Material Aluminum with cast iron sleeve
Application Yamaha Timberwolf 250 (1992-2000), Bear Tracker 250 (1999-2004), Moto-4 250 (1989-1991)
Condition New

OEM part numbers are provided for cross-reference purposes only. Always verify fitment using your vehicle's specific model, year, and serial number before ordering.

Restore your Yamaha 250 engine's performance with this premium aftermarket cylinder kit—order today!

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