O.S.SPEED Minicars Marine 3.5cc Water Cooling Head Black
Discontinued! - The original O.S. black marine cooling is replaced with our M-Works M21-H marine cooling head with larger chamber for the cooling water, it's lower and it's lighter.
Specs:
- Fits most O.S. 3.5cc/.21 engines
- Anodizing: Black
- Laser Engravement: No
- Diameter: 39.6mm
- Height: 12.5mm
- Weight: 29g
- Nipple thread: M5x0.8mm
- Max dia on the combustion chamber: 38mm
