I Swear 40' Carver 405 Aft Cabin Motor Yacht 1998

Stepping aboard “I Swear,” you immediately appreciate the design that has made the Carver 405 a favorite among Loopers and liveaboards. Wide side decks and a fully enclosed aft deck create a comfortable and functional outdoor living space, ideal for entertaining or relaxing at the end of a long cruising day.

Entering the salon, the updates are immediately evident. The space is bright, open, and inviting with updated flooring and modern touches throughout. Large windows flood the salon with natural light, creating a warm and comfortable environment that feels far newer than her vintage.

The galley-down layout opens the main salon and creates a natural flow between living and entertaining spaces. A serving counter connects the galley to the salon, making it both social and functional.

Below, the accommodations are well thought out, offering privacy and comfort for both owners and guests. The layout is ideal for extended cruising or liveaboard use, providing a balance of space and practicality.

Up top, the flybridge offers excellent visibility and a comfortable helm layout, making long cruising days enjoyable and docking stress-free.

“I Swear” features a two-stateroom layout that has made the 405 one of the most livable boats in her class.

The primary stateroom offers an offset queen berth, generous storage, and a private ensuite head with a separate stall shower.

The forward guest stateroom features an offset double berth with direct access to the day head, providing comfort and privacy for guests.

This layout works exceptionally well for couples cruising together, families, or liveaboard owners.

The salon aboard “I Swear” has been tastefully updated with modern finishes, including updated vinyl flooring and comfortable seating. The layout is both functional and inviting, offering ample space for relaxing or hosting guests.

A large entertainment area and bar create a natural gathering space, while the abundance of natural light enhances the open feel.

The galley is well-equipped for extended time aboard, featuring:

• Corian countertops
• Full-size refrigerator
• Ample storage and counter space
• Functional layout connected to the salon

This is a space designed for real use—not just weekends, but extended cruising and living aboard.

The aft deck is fully enclosed with wing doors and updated canvas and eisenglass, creating a versatile space that can be enjoyed in a wide range of conditions. A wet bar with ice maker makes this area perfect for entertaining.

Molded steps lead down to the integrated swim platform, providing easy water access and safe boarding.

The flybridge offers excellent sightlines and a comfortable helm position, making it ideal for both cruising and docking.

“I Swear” is powered by twin Cummins 6BTA 5.9L 330 HP diesel engines with approximately 2,474 hours.

These engines are widely regarded as one of the best choices ever installed in vessels of this size. The 6BTA is a mechanically governed, inline 6-cylinder diesel, known for its durability, simplicity, and long service life.

Unlike newer electronically controlled engines, these Cummins are straightforward and highly serviceable—making them a favorite among experienced cruisers and Great Loop veterans. Their mechanical design allows for easier troubleshooting, reduced reliance on electronics, and confidence when cruising in remote areas.

They deliver strong, reliable performance and cruise comfortably in the 18–20 knot range, while still offering excellent efficiency at displacement speeds.

This vessel has also seen significant recent mechanical investment, including:

• Aftercoolers cleaned (12/2024)
• Starboard heat exchanger replaced (2025)
• Port engine major service (head gasket, top cover gasket, head cleaned, repainted)
• Exhaust system updates (both engines)
• New exhaust clamps (2025)
• Props balanced and port shaft straightened
• New cutlass bearings (both shafts)

“I Swear” is outfitted for self-sufficient cruising with a strong electrical and systems package:

• Kohler 9kW generator (~1,450 hours)
• Victron MultiPlus II inverter/charger
• Victron display system
• Five 100W solar panels
• Starlink-ready installation
• Reverse-cycle air conditioning

This is a boat built to comfortably spend extended time off the dock. 

“I Swear” is equipped with an updated and well-integrated Garmin electronics package, including:

• Garmin GPSMAP 1243xsv
• Garmin GMR 18HD3 Radar
• Garmin Reactor 40 Autopilot
• Garmin GHC 50 Control Head
• Full NMEA 2000 Network
• AIS (Si-Tex MDA1)

Additional upgrades include Starlink integration and a modern onboard network—perfect for today’s connected cruising lifestyle. 

Engine and generator hours are as of the date of the original listing and are a representation of what the listing broker is told by the owner and/or actual reading of the engine hour meters. The broker cannot guarantee the true hours. It is the responsibility of the purchaser and/or his agent to verify engine hours, warranties implied or otherwise and major overhauls as well as all other representations noted on the listing brochure.

The company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change or withdrawal without notice.

Listing MLS by Yachtr.com