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UFO Black Chain Block for Yamaha YZ 125/250 03-08 & YZ 250F 03-08 & YZ 450F 03 & WR 250F/450F 03-06
In stock at our supplier. We dispatch this product within 2–5 working days.

Product description
The black UFO chain guide block is a heavy-duty replacement for the chain guide on Yamaha YZ and WR motorcycles from the 2003–2008 model years. A reliable component for riders seeking consistent chain tension and long-lasting performance.
- Color: Black
- Compatibility: Yamaha YZ125/250 (2003–2008), YZ250F (2003–2008), YZ450F (2003), WR250F/WR450F (2003–2006)
- Material: High-quality plastic for impact resistance and lightweight durability
- Fit: Precision-engineered to follow OEM specifications for easy installation
- Maintenance: Low maintenance requirements thanks to its durable, wear-resistant material
Its user-friendly design ensures reliable chain guiding without complicated adjustments. Ideal as a replacement during routine maintenance or when repairing worn components. MPN YA03870-001 / PL2.84525 guarantees the correct reference for your Yamaha motorcycle. UFO is known for practical, durable motorcycle parts focused on realistic performance in everyday racing conditions.
Specifications
Manufacturer and product safety
Manufacturer
UFO Plast Italy S.r.l.
Via Marco Polo 155
56031 Bientina (Pisa)
Italy
info@ufoplast.it
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