The Volvo Penta D9-500 is a robust 9-litre diesel engine with new engine electronics and an innovative turbo. With its 500 hp, compact design and high torque even at low engine speeds it is perfectly adapted for patrol boats, fast fishing boats and other demanding marine applications where fast acceleration, high speed and good comfort are deciding factors. The D9-500 is an inline-six marine diesel engine with a cylinder volume of 9.4 litres. The engine will be introduced at the SMM marine trade fair in Hamburg when it opens on 28 September 2004. The new engine is type-approved by leading classification societies and replaces Volvo Penta’s 10-litre engine. The engines are intended for use in high speed coastal applications.