Perkins manufactured various marinised versions of Perkins 6.354 engines over the years, each with different options for the header tank used.
- 'Early' engines may have a combined header tank/heat exchanger at the front of the engine and were fitted with a 60 mm diameter winged cap - for these engines choose our 'short reach' cap.
- Later engines with Bowman heat exchanger on the exhaust side of the engine and were fitted with a larger 70 mm diameter round cap- choose our 'large' cap.
All of our caps are made in England from high quality components, comprising zinc plated steel caps, stainless steel springs and brass internals.
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