- Designed exclusively for highly-efficient premium cooling the Zenoah G290PUM engine.
- Increased water volume over stock Zenoah water jacket.
- CNC machined fins create greater surface for increased heat dissipation.
- 2 inlets and 2 outlets increase cooling water flow.
- Includes stainless steel cap screws (for mounting) and brass water fittings.
- Everything you need to install onto your engine.

Increased volume - provides more efficient cooling and better under-hatch fit.

Standard on our BONZI' BZx4 Ultra engine modification.

Available in SILVER ONLY

2" wide x 2" long x 1 1/2" high