1993 Sealine 400 Sports Cruiser – Twin Volvo Penta KAD 43 Diesels, Full 2025 Survey, Service History & Refreshed 6-Berth Layout. Just relaunched, all maintenance completed with fresh antifoul. Currently moored in Weymouth harbour. Just had canopy refurbished Oct 2025, including new windows.
Overview
combining timeless style with serious reliability and a large spacious interior with plenty of room for a family of 4 and friends for long term cruising or just weekends away. Each cabin offering ensuite bathrooms, and the aft cabin benefiting from a modification to a 6ft x 6ft bed. This 1993 Sealine 400 Sports Cruiser boasts twin Volvo Penta KAD 43PA diesels, approx with approx 460 hours, and has been well maintained and regularly lifted every year. In 2024 she had her major engine services including all valve clearances and water pump rebuilds, nothing left to chance. We had a full hull and machinery survey in August 2025 which confirmed the excellent condition of the hull with no defects or advisories whatsoever, unusual to find these days on an older craft. Modernised throughout, she offers comfort & renowned sea keeping & quality of the UK built Sealine of the 90’s. Long‑term owner of 12 years, which give keep comfort to the next owner she has been looked after, deep knowledge & pride of ownership, and full documentation to back it up, including regular service history.
Performance & Mechanical Excellence
Twin KAD 43 engines (~450 hrs)—recently serviced with full documentation
2024 major engine & leg service: valve clearances, legs stripped and pressure‑tested + invoices available
2025 hull survey— faultless result, full report upon request
Annual lifting & maintenance : antifouling, engine maintenance, decks, and more
Loads of spares will go with her. New Oil, turbo, belts & filters etc.
2 main fuel tanks + 1 extended range tank for long range cruising.
Accommodation & Interior
Large cockpit and helm, with fridge & sink. seats 10 to 12 guest on 2 levels. Large dining table with wrap around seating which drops down with filler cushions for sunbed or another double berth. Cavernous interior space: 6 berth
Forward: generous island berth, en‑suite, wardrobe and loads of storage throughout.
Aft: full‑size cabin with 6 ft × 6 ft bed, en‑suite, wardrobe and dressing table.
Galley: convertible sofa with drop‑in cushion.
Full galley kitchen with twin sinks and induction hob (no gas for safety).
Full size fridge.
Storage everywhere.
Bright, updated interior, flowery 90s fabrics have been removed to give a modern feel to the interior space, lights greys and light woods. Updated bowl sinks, linings and pads.
Electric sea toilet & macerator, with recent whale gulper holding tank & shower pump out.
Navigation & Electronics
Raymarine C80 chartplotter with charts, auto helm , log & depth, new trim guages.
New 2025 switch panel
Specifications at a Glance
Model: Sealine 400 Sports Cruiser (Ambassador styling) — GRP build, circa 1993–94
LOA: approx. 12 m; Beam: approx. 3.96 m
Displacement: ~8.2–8.3t
Berths: 6 (two en‑suite cabins + galley conversion)
Fuel Tanks: 2+1extended range tank.
Cruising Comfort: soft hull ride, deep V hull , high freeboard and brilliant seakeeping quality. Cavernous interior space & cockpit designed for relaxation and long range cruising.
service history & receipts—transparent, trustworthy upkeep
Invoices for 2024 major service and full survey report available
Modern conveniences: updated switchgear, reliable electronics, turnkey.
This isn’t just any ’90s Sealine—she’s a well cared-for example with regular documented maintenance, modern comforts, and genuine Sealine pedigree. With a new hull survey confirming her condition and service records to boost reassurance.
Ready to view? Full documentation, 2025 survey, and service history available. Serious buyers—contact me to arrange a viewing or request files. Sea trial only on deposit and agreed sale price.