The replacement Bowman rubber moulded end cap is designed for keel cooled heat exchanger manifolds. You should find that your current Bowman end caps have their part number embossed on them to easily identify the replacement you need. This is Bowman part number 3419NP, which is a blanking end cap.

This heat exchanger end cap is suitable to be used with the following Bowman heat exchangers: BL180, BL250, BL380, BL570, FM160, FM162, FM180, FM240, FM242, FM300, FM400, FM450, FM452, FM600, FM602, FM660, FM662, GM370, GM550, LR250, MB180, MB220, MB300, MB380, MB570, MK130, MK140, ML120, ML130, MS130, MS140, PE180, PE250, PE390, PE580, VW150, VW160 and VW240.

Replaces Thornycroft 54382778.