Volvo Penta KAD 42-a, KAMD 42-a Heat Exchanger. Great condition insert in good shape comes with expansion tank and hose. Retail for both is over $3700. Part # 860411. We have been a certified Volvo dealer for over 25 years. We have many other Volvo Penta and Mercruiser parts in stock. If you do not see what you need in my store feel free to contact me at 949 394 1357 and mention this eBay add.