Mercury 350XXL Verado FourStroke Cold Fusion

Cold Fusion White covers this used Mercury 350XXL Verado FourStroke, a standard-turning 350 hp inline-6 built on the 30-inch shaft, the longer of two lengths Mercury offers for this non-counter-rotation Verado.

Picking the right shaft length

Go with this 30-inch model over its shorter sibling only if your transom sits deeper; the shaft length cannot be swapped after purchase. Like the rest of the family, it carries no counter-rotation gearing, so it is not meant to be paired as a counter-turning twin, and rigging is otherwise identical to the shorter version.

Engine and charging

At 2.6 liters, this supercharged inline-6 cools its intake air before compression and holds boost electronically, reaching a 5800-6400 rpm full-throttle band. Electro-hydraulic power steering is standard, the alternator is belt-driven at 70 amps, and dry weight lands at 668 lbs.

What color is this engine? Cold Fusion White.

Is this a counter-rotation unit? No, it is standard rotation.

A standard-rotation engine like this one does not need a matching counter-rotation partner, so it works alone or as either side of a twin-engine pair, unlike the CXXL models in this same lineup.

Check this used engine's hours and service records before buying. Total Mercury coverage reaches 5 years: 3 years standard, with 2 more added under Product Protection Gold.