Description
Stock radiator caps are engineered to factory minimums—which means they can’t handle the sustained heat loads of aggressive riding, track sessions, or extended high-RPM operation. The Twin Air 1.8 Bar Radiator Pressure Cap raises your coolant’s boiling point, giving your engine the thermal headroom it needs to stay in the safe zone when temperatures spike. This is a straightforward, bolt-on upgrade that delivers measurable cooling system performance without fabrication or modification.
Compatible with Honda, Kawasaki, Suzuki, and Yamaha motorcycles, this cap is a direct OEM replacement that installs in seconds and requires no special tools or expertise.
- Pressure rating: 1.8 Bar
- Raises coolant boiling point
- Direct OEM replacement
- Bolt-on installation
- No modifications required
- High-quality construction
- Reduces coolant loss
- Honda compatible
- Kawasaki compatible
- Suzuki compatible
- Yamaha compatible
- MPN: 177900






