405 CONQUEST
Posted: Wed Oct 01, 2025 12:52 pm
I have always been in love with the newer Boston Whaler CONQUEST models, particularly the 345 CONQUEST that I first saw back in 2007. It was Boston Whaler's first really big express cruiser design, and I thought it was beautiful. Even at its then price of about $400,000, it sold very well.
The top-of-line CONQUEST is now the 405 model. There is a used 2024 model year 405 CONQUEST listed for sale at $1.2-million. For propulsion it has four 400-HP VERADO engines. With a dry hull weight of 22,400-lbs, you won't be trailering this boat to a distant rendezvous, but you can travel at 58-MPH on the water with that 1,600-HP. At wide-open throttle those four engines will be consuming a total of 134-gallons of fuel every hour. At marina fuel dock prices of $5.50 (or more), one hour of fun at top speed is going to cost $740.
As for integrated design to use Mercury engines, look at Figure 1 below. I don't think that the close clearance of the tilted-up engines to the aft cockpit bulkhead was just a fortunate coincidence.
The 405 is nice, but I still like the original c.2007 345 CONQUEST, as its style and design was just superb. I thought the helm being located on-centerline was a great feature. I see a used 2009 345 CONQUEST is about $290,000. Still too much for me.
The top-of-line CONQUEST is now the 405 model. There is a used 2024 model year 405 CONQUEST listed for sale at $1.2-million. For propulsion it has four 400-HP VERADO engines. With a dry hull weight of 22,400-lbs, you won't be trailering this boat to a distant rendezvous, but you can travel at 58-MPH on the water with that 1,600-HP. At wide-open throttle those four engines will be consuming a total of 134-gallons of fuel every hour. At marina fuel dock prices of $5.50 (or more), one hour of fun at top speed is going to cost $740.
As for integrated design to use Mercury engines, look at Figure 1 below. I don't think that the close clearance of the tilted-up engines to the aft cockpit bulkhead was just a fortunate coincidence.
The 405 is nice, but I still like the original c.2007 345 CONQUEST, as its style and design was just superb. I thought the helm being located on-centerline was a great feature. I see a used 2009 345 CONQUEST is about $290,000. Still too much for me.