Complete Top End Replacement Cylinder Kit For Yamaha Timberwolf 250 Bear Tracker 1992 2004
Complete Top End Replacement Cylinder Kit For Yamaha Timberwolf 250 Bear Tracker 1992 2004 is backordered and will ship as soon as it is back in stock.
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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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