High-grade complete replacement engine cylinder assembly engineered to restore or upgrade worn, scored, or damaged top-ends back to factory specifications. Manufactured from high-tensile cast aluminum with a precision-machined bore and durable electro-plated nickel silicon carbide composite coating, providing superior wear resistance, excellent heat transfer properties, and long-lasting durability under severe high-RPM two-stroke thermal loads.
Specs & Details
- Manufacturer Part Number: 190-40000 (Supplier Part # CX-40000)
- Application Type: Off-Road / Motocross Engine Internal Component (Complete Cylinder)
- Bore Size: 64.00 mm (Standard Stock Bore)
- Material: Cast aluminum with nickel silicon carbide plated bore
Vehicle Fitment
| Make | Model | Engine Type | Year Range |
| Yamaha | YZ125 | Two-Stroke Motocross | 1997–2004 |
TSO Garage Note: Namura Part #190-40000 (CX-40000) provides a drop-in replacement cylinder featuring a standard 64.00mm bore for late-90s to early-2000s Yamaha YZ125 powerplants. It bypasses the turnaround time and expense of stripping and re-plating damaged legacy bores, getting the bike back on the track with correct OEM port timing and geometry.
Compatibility
Fetching compatibility details...
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