2005 Sea Ray 420 Sundancer

2005 Sea Ray 420 Sundancer "NaviGator" | Twin Cummins Diesels | 1,903 Hours | Simrad Electronics | Fully Documented Service | FLIR Infrared M232 Pan, Zoom & Tilt Camera

NaviGator is a 420 Sundancer with the paperwork to back up her condition. Since 2023 her owners have put more than $38,000 into documented service, systems, and electronics. Invoices from Southeastern Marine Power, Suncoast Marine Electronics, and Absolute Tank Cleaning are on file and available to serious buyers.

Power and Mechanical. Twin Cummins 8.3L diesels show 1,903 hours. At 1,601 hours both engines and the Onan diesel generator received a full extended service by Southeastern Marine Power. That service included new raw water impellers, belts, fuel and oil filters, zincs, marine gear oil, and a new generator raw water pump. Oil analysis on both engines, both transmissions, and the generator came back normal. Work since then includes a new port alternator and belt tensioner, a resealed starboard front seal and raw water pump, and a professional cleaning and treatment of both aluminum diesel tanks in December 2024, with no water, corrosion, or seepage found. Seven new batteries were installed in November 2024.

2026

• Sierra 30 micron fuel/water separating filters installed (September)
• Oil changes for engine, lube filters (Fleetguard LF9009), coolant filters (WF2071), and Onan oil and filters (February)

2025

• Fusion Apollo MS RA770 touchscreen stereo and ERX400 wired helm remote installed and networked. Suncoast Marine Electronics, $2,112.04 (May)
• New ignition switches. Siren Marine monitoring installed with 2 bilge sensors, a high water sensor, a 110VAC sensor, and 2 battery sensors. Suncoast, $1,123.50 (April)
• Siren System Monitoring - Batteries, FWD & AFT Bilges, High Water, Refrigerator, Cabin Temp & Shore Power.

2024

• Both diesel tanks cleaned and treated with Sentry Diesel Plus. Fuel rated good, microbial sediment removed, no free water, corrosion, or seepage found, sending units good. Absolute Tank Cleaning, $2,335 (December)
• Seven new batteries from NAPA (5 x 7237 and 2 x 8301), $1,398.84 (November)
• Owner purchased Fleetguard FF5285 fuel filters, Sierra fuel/water separators, and lube filters (October)
• Owner purchased Cummins fuel filters, Racor 2040N30 elements, Onan LF3536 filters, and Onan oil (April and May)
• RO 18605, both engines at 1,750 hrs: starboard raw water pump resealed with new gasket and O rings, engine room cleaned. $2,065.98 (February)
• Jabsco pressurized water accumulator purchased (January)
• RO 18512, port at 1,738 hrs, starboard at 1,739 hrs, generator at 1,325 hrs: new port alternator and belt tensioner, defective replacement alternator swapped under warranty, starboard front crank seal and cover resealed. $4,884.51 (January)
• 2023Suncoast Invoice 404377: Simrad NSS12 evo3S installed in a custom acrylic dash panel with gauges. Radar remounted on a Seaview mount with a FLIR thermal camera and joystick control. Owner supplied Icom VHF black box installed. LED searchlight, Seaview light bar with LED masthead light, C-MAP REVEAL chart, and LED lighting in the salon and forward berth. Labor and materials $4,327, hardware supplied separately (September)
• RO 17974, engines at 1,601 hrs: extended service on both engines (oil, oil and fuel filters, Walker air separators, zincs, marine gear oil, impellers, coolant filters, belts, heat exchanger anodes). Onan MDKBL service with new raw water pump, impeller, and belt. Generator shutdown (code 36) traced to fuel restriction, all three Racor assemblies pulled for rebuild. Sea trial. $10,477.97 (August)
• Ring Power fluid analysis on both engines, both transmissions, and the generator, all normal (August)
• Suncoast electronics estimate, superseded by the September invoice (July)
• 2022Generator oil analysis normal at 1,062 hrs (August)

2021

• Generator oil analysis normal at 975 hrs (August)