Caterpillar Marine Power Systems' new C6.4 marine diesel engine platform was designed specifically for the pleasure craft industry. Featuring a 3400 rpm rated engine speed, the V8 C6.4 is a four-stroke engine with a 98.2-mm (3.86-in) bore and 105-mm (4.13-in) stroke. The C6.4 offers four “E” level ratings, including the highest rating, which is 505 mhp (377 kW) at 3400 rpm. Additional ratings available include 450 mhp (336 kW) at 3400 rpm, 380 mhp (283 kW) at 3400 mhp, and 335 mhp (250 kW) at 3400 rpm. Production is targeted for the first half of 2012 at the Wimborne Marine Power Center, located in Wimborne, U.K. Reduced engine noise is achieved through the two-piece CGI cylinder block, combining the bed plate and block casting to provide additional stiffness and subsequently lower operating noise. The high-pressure common rail fuel system also provides quieter performance through the pilot injection of fuel and integration of piezo technology to eliminate electro-mechanical control solenoids. Standard equipment on the C6.4 includes a built-in oil cooler, centrifugal water pump, self-priming sea water pump, low-profile oil pan, top access to service oil level and oil fill locations, and a single Cat heavy-duty spin-on high-efficiency oil filter. The engine is equipped with an automatic fuel priming pump, 12-V dc electric accessories, and a solid-mounted Cat 70-pin electric plug-in connector for yacht control harness.