2021 Mercury Verado 400 L6 Twin Pair — 610 Hours, Standard + Counter, Platinum Warranty

Condition report

A running twin set of 2021 Mercury Verado 400s — the supercharged L6 generation — in standard and counter rotation on 20-inch shafts, photographed on rolling stands. The white cowlings carry the MERCURY lettering and “400 / VERADO” rear markings with Ultra-Low Emission stickers, the AMS midsections and silver lower units present cleanly, and both supercharged L6 powerheads are photographed with the cowlings off.

Two honest notes. First, the underside/transom-bracket views show salt and barnacle residue and surface corrosion under the mounts — photographed deliberately; judge them in the gallery. Second, hours: 610 hours on the pair, as supplied by the owner. What is owner-stated and carried here: great compression across all cylinders, well maintained, trim and tilt fully functional and inspected, lower units shifting smoothly through forward, neutral and reverse, and transferable Mercury Factory Platinum warranty until 07/31/2029. The pair is sold as engines only — no rigging, no steering, no props (the exposed prop shafts in the photos match that) — and the owner is happy to split the set, with individual pricing on inquiry.

Overview

The L6 Verado 400 is the supercharged inline-six that defined Mercury’s offshore line before the V10 arrived: 400 HP with the refinement and midrange surge only a boosted six delivers, on the AMS midsection. A matched standard-plus-counter pair with Platinum warranty running to mid-2029 is the complete repower core for a twin-engine centre console.

If you are comparing pairs, note what this listing is and is not: it is engines only, priced accordingly, with the warranty as the headline. Also in this batch is a 2021 Mercury Racing 400R pair with complete controls at 370 hours — the right pair depends on whether your boat already has Verado rigging.

What’s included

• Twin engines only — standard + counter rotation pair
• NOT included: rigging, steering and propellers (owner-stated)

Ideal for

Twin-engine centre consoles and offshore hulls on 20-inch transoms that already have (or are sourcing separately) Verado DTS rigging, and buyers who value factory Platinum warranty cover.

Compatibility notes

• Standard + counter rotation matched pair; the owner will split the set — individual pricing on inquiry.
• 20-inch shafts — match to your transom height.
• Rigging, steering and props are NOT included — factor them in, or ask us about the complete-controls 400R pair in this batch.

Delivery

Units ship crated and fully insured. Mainland US transit is 3–5 business days; international 7–14 business days (quoted per order). Transit estimates exclude processing, customs, and carrier delays. See shipping, returns & warranty for full terms.

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