Perkins 4.99 Bowman Heat Exchanger

Combined Bowman exhaust manifold and heat exchanger that fits Perkins 4.99. This is a high quality original equipment part as supplied by Perkins in their later factory marinised versions and known as the 'Bowman' heat exchanger.

Direct cooling of the cylinders and heads by sea water is unsatisfactory, because the engine – which was probably originally designed for radiator cooling – will run too cold and the sea water will eventually ruin the cylinder block and heads.

Heat exchanger cooling is the most common method, the sea water being isolated in components which can be designed to withstand its corrosive affect. The closed fresh-water circuit can be thermostatically controlled so that the engine operates at its designed temperature.

Exhaust outlet is a 4 bolt pattern with pcd 76 mm x 62 mm

Supplied with a pair of cylinder head to heat exchanger gaskets.

UK, European and Worldwide shipping available.