Sea Ray 400 Sedan Bridge
Built 1996–2003 by Sea Ray Boats
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About the Sea Ray 400 Sedan Bridge
Researched from public sources for this model. Any individual boat may have been modified or repowered — confirm before relying on any figure.
- Built
- 1996–2003
- Builder
- Sea Ray Boats
- Length
- 44 ft
- Beam
- 14.25 ft
- Draft
- 3.33 ft
- Displacement
- 22,000 lb
- Hull
- fiberglass-cored
- Hull / keel
- planing
- Propulsion
- inboard
- Fuel
- 350 gal
- Water
- 120 gal
- Holding
- varies by year
- Water heater
- 8.5 gal · AC · standard
- Generator
- standard
- Bow thruster
- factory option
- Stern thruster
- not fitted
- Steering
- hydraulic
Tank capacities — where the figures come from
-
Fuel 350 gal
“FUEL CAPACITY 350 GAL 1,324.8 L” — brochure (2002), rnr-marine.com · “350 US Gallons / 1,325 Litres” — spec database (1998), everythingsearay.com · “335 gallons of fuel capacity” — search excerpt (2000), boattrader.comSea Ray's 2002 spec sheet (a PDF posted by a dealer) confirms 350 gal, and a factory-spec archive gives the same for 1998. Single listings of 335 and 320 are outliers.
-
Water 120 gal
“WATER CAPACITY 120 GAL 454.2 L” — brochure (2002), rnr-marine.com · “120 US Gallons / 454 Litres” — spec database (1998), everythingsearay.com
-
Holding varies by year
“HOLDING TANK 40 GAL 151.4 L” — brochure (2002), rnr-marine.com · “Holding Tank w/Dockside Pump-Out (40-Gallon)” — brochure (2003), rnr-marine.com · “Waste Water Holding Tank ~ 28 US Gallons / 106 Litres” — spec database (1998), everythingsearay.com · “a 28-gallon holding tank” — search excerpt (2000), boattrader.com · “a 40-gallon holding tank” — search excerpt (2000), boattrader.comBuilder spec sheets for 2002 and 2003 say 40 gal; a factory-spec archive for 1998 says 28, and 2000 listings split between 28 and 40. That points to a change around 2000-2001, but no early builder sheet was checked to confirm the 28.
-
Water heater 8.5 gal · AC · standard
“Water Heater, 120V (8.5-Gallon)” — builder (2002), rnr-marine.com · “Water Heater, 120V (8.5-Gallon)” — builder (2003), rnr-marine.comStandard equipment on the 2002 and 2003 sheets; only 120V heating is mentioned, with no engine heat exchanger listed. We haven't seen sheets for the earlier years (1996-2001).
Tanks are often replaced or added on older boats — check the tank labels or a survey for yours.
Thrusters and steering — where this comes from
-
Bow thruster factory option
“INDIVIDUAL OPTIONS: Bow Thruster” — brochure (2003), rnr-marine.com · “Features and Standard Equipment ... INDIVIDUAL OPTIONS (no thruster listed)” — brochure (2002), rnr-marine.comA bow thruster is a factory option on the 2003 builder spec sheet but is absent from the 2002 standard and option lists; earlier years not checked. Make and size not given.
-
Stern thruster not fitted
“Features and Standard Equipment ... INDIVIDUAL OPTIONS (no stern thruster listed)” — brochure (2002), rnr-marine.com · “INDIVIDUAL OPTIONS: Bow Thruster (no stern thruster listed)” — brochure (2003), rnr-marine.comNeither the 2002 nor the 2003 option list offers a stern thruster.
-
Steering hydraulic
“Steering, Hydraulic / Steering, Tilt Wheel” — brochure (2002), rnr-marine.com · “Steering, Hydraulic / Steering,Tilt Wheel” — brochure (2003), rnr-marine.comHydraulic steering with tilt wheel is standard equipment on the 2002 and 2003 builder spec sheets; brand not named.
Thrusters and steering are often replaced — check the units on your boat before ordering parts.
Hundreds built. Fully cored hull with prop pockets and underwater exhausts. Two-stateroom galley-down (most common) or three-stateroom galley-up layouts. Hull length 41.5 ft; LOA includes platform.
Engines fitted
-
MerCruiser 8.1S Horizon gas inboard — 370 hp, gas, twin
standard
Sea Ray's 2003 spec sheet lists twin 8.1S Horizon 370 hp as standard; HMY also cites 370 hp MerCruiser inboards. Earlier-year gas engines (possibly 7.4L) not confirmed.Sources: rnr-marine.com · hmy.com
-
Caterpillar 3116 TA diesel — 340 hp, diesel, twin
factory option
HMY cites optional 340 hp Cats; owners report 3116s at 300 and 350 hp, and a yacht database lists twin 3116 TA. Owners also mention the Cat 3126TA (350 hp).Sources: hmy.com · clubsearay.com · yachtdatabase.com
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Cummins 6CTA 8.3M diesel — 417 hp, diesel, twin
factory option
Optional on the 2003 spec sheet at 417 hp; owners and listings also describe 2000-01 boats with 450 hp Cummins (C-series 8.3) as the preferred choice.Sources: rnr-marine.com · clubsearay.com
-
Volvo Penta TAMD74L EDC diesel — 411 hp, diesel, twin
factory option
Optional on the 2003 spec sheet.Sources: rnr-marine.com · yachtdatabase.com
Boats of the same model can differ — check which engines yours actually has before ordering parts.
Generator
standard
“Generator: Remote Start w/Muffler, Freshwater Cooling ... 120V 9.6 kW Westerbeke Gas (features and standard equipment)” — builder (2002), rnr-marine.com · “Generator ... 120V/60 Cycle 9.6 kW Gas (Generator manufacturer and size may vary due to product availability.)” — builder (2003), rnr-marine.com
Diesel-engine boats also had an oil-change system plumbed to the generator.
-
Westerbeke — 9.6 kW, gas
standard
The 2003 sheet gives a 9.6 kW gas set without naming the make and warns that make and size may vary.“120V 9.6 kW Westerbeke Gas” — builder (2002), rnr-marine.com
-
Westerbeke — 8 kW, diesel
factory option
Offered instead of the standard gas set; export boats listed 8.0 kW (2002) or 7.5 kW (2003) gas and 6.0 kW diesel sets.“Generator Options (in lieu of Std.): 120V/60 Cycle 8.0 kW Westerbeke Diesel” — builder (2002), rnr-marine.com
Generators are often replaced or added — check the unit's own plate before ordering parts.
Manuals and brochures online
- Document Sea Ray Documents & Manuals library (spec sheets and owner's manuals searchable by model and year) — searay.com
Hosted by the builder or an owners' association; they own the copyright.
Known problems for this model
-
Wet balsa core hull
Owners say the 400 was balsa cored through about 2002; water gets in via poorly sealed accessory holes, portlight seals and the hull-deck joint near the rubrail, so a thorough moisture survey is essential.clubsearay.com · yachtsurvey.com
-
Tight engine room engine
Engine room access is tight.hmy.com
Engines & parts
Caterpillar 3116 parts: limited
Factory optional engine — you entered “Caterpillar 3116 TA diesel”
Supported by Cat dealers by serial number; aftermarket rebuilders (e.g., Big Bear Engine) sell parts and address known problems. Some 3116s built in France ('soft block') were problematic and owners are told to check serial numbers with Cat.
Parts sources: Big Bear Engine Company, Diesel Pro Power
Common problems (4)
-
Failures in high-load use engine
3116s generally do fine in trawlers but problems show up in fast boats run near full power for long periods; poor propping that overloads the engine ages it quickly.trawlerforum.com
-
'Soft block' engines engine
A batch of French-built blocks had a reputation for early failure, sometimes within a few hundred hours.trawlerforum.com
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Injectors, fuel rack and heads fuel
Owners and rebuilders report injector/injector-cup, fuel rack and cylinder head problems; good maintenance history matters when buying.4btengines.com · facebook.com
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Low turbo/exhaust mixer height exhaust
The low-mounted turbo and exhaust mixer make it harder to get adequate exhaust riser height, so the exhaust installation needs care to avoid water backflow.trawlerforum.com
Maker’s service schedule (18)
| Engine oil & filter change | 250 hrs or 1 yr | “Every 7500 L (2000 US gal) of Fuel or 250 Service Hours or 1 Year ... Engine Oil and Filter - Change” — manufacturer, oxfordyachtagency.com |
| Fuel filters & water separator | 250 hrs or 1 yr | “Every 7500 L (2000 US gal) of Fuel or 250 Service Hours or 1 Year ... Fuel System Primary Filter/Water Separator Element” — manufacturer, oxfordyachtagency.com |
| Raw-water pump impeller | 250 hrs or 1 yr | “Every 7500 L (2000 US gal) of Fuel or 250 Service Hours or 1 Year ... Auxiliary Water Pump - Inspect” — manufacturer, oxfordyachtagency.com |
| Engine pencil zincs | 50 hrs | “Every 1500 L (400 US gal) of Fuel or 50 Service Hours ... Zinc Rods - Inspect/Replace” — manufacturer, oxfordyachtagency.com |
| Valve clearance check / adjust | 2,000 hrs | “First 7500 L (2000 US gal) of Fuel or 250 Service Hours ... Engine Valve Lash - Inspect/Adjust” — manufacturer, oxfordyachtagency.com |
| Coolant replacement & freeze-point test Cat DEAC / conventional coolant | 1,000 hrs or 2 yrs | “Every 30 000 L (8000 US gal) of Fuel or 1000 Service Hours or 2 Years ... Cooling System Coolant (DEAC) - Change” — manufacturer, oxfordyachtagency.com |
| Coolant replacement & freeze-point test Cat ELC (extended life coolant) | 6,000 hrs or 4 yrs | “Every 182 000 L (48 000 US gal) of Fuel or 6000 Service Hours or 4 Years ... Cooling System Coolant (ELC) - Change” — manufacturer, oxfordyachtagency.com |
| Turbocharger inspection | 1,000 hrs or 2 yrs | “Every 30 000 L (8000 US gal) of Fuel or 1000 Service Hours or 2 Years ... Aftercooler Core - Clean/Test” — manufacturer, oxfordyachtagency.com |
| Turbocharger inspect | 1,000 hrs or 2 yrs | “Every 30 000 L (8000 US gal) of Fuel or 1000 Service Hours or 2 Years ... Turbocharger - Inspect” — manufacturer, oxfordyachtagency.com |
| Heat exchanger & oil cooler cleaning | 2,000 hrs | “Every 60 000 L (16 000 US gal) of Fuel or 2000 Service Hours ... Heat Exchanger - Inspect” — manufacturer, oxfordyachtagency.com |
| Drive belts inspect / replace | 250 hrs or 1 yr | “Every 7500 L (2000 US gal) of Fuel or 250 Service Hours or 1 Year ... Belt - Inspect” — manufacturer, oxfordyachtagency.com |
| Fuel injection timing check | 2,000 hrs | “First 7500 L (2000 US gal) of Fuel or 250 Service Hours ... Fuel Injection Timing - Check” — manufacturer, oxfordyachtagency.com |
| Thermostat (coolant temperature regulator) replace | 3,000 hrs or 2 yrs | “Every 91 000 L (24 000 US gal) of Fuel or 3000 Service Hours or 2 Years ... Cooling System Water Temperature Regulator -” — manufacturer, oxfordyachtagency.com |
| Sea water strainer clean/inspect | 250 hrs or 1 yr | “Every 7500 L (2000 US gal) of Fuel or 250 Service Hours or 1 Year ... Sea Water Strainer - Clean/Inspect” — manufacturer, oxfordyachtagency.com |
| Jacket water pump inspect | 250 hrs or 1 yr | “Every 7500 L (2000 US gal) of Fuel or 250 Service Hours or 1 Year ... Water Pump - Inspect” — manufacturer, oxfordyachtagency.com |
| Coolant SCA test/add | 250 hrs or 1 yr | “Every 7500 L (2000 US gal) of Fuel or 250 Service Hours or 1 Year ... Cooling System Supplemental Coolant Additive (SCA)” — manufacturer, oxfordyachtagency.com |
| Hoses and clamps inspect/replace | 250 hrs or 1 yr | “Every 7500 L (2000 US gal) of Fuel or 250 Service Hours or 1 Year ... Hoses and Clamps - Inspect/Replace” — manufacturer, oxfordyachtagency.com |
| Crankcase breather clean | 250 hrs or 1 yr | “Every 7500 L (2000 US gal) of Fuel or 250 Service Hours or 1 Year ... Engine Crankcase Breather - Clean” — manufacturer, oxfordyachtagency.com |
Service part numbers (3)
| Oil filter | Sources disagree: 1R-0658 / 324-2598 | “**Oil Filter** **CAT 1R-0658** | 3126B C7 3306 3304 3116 C4.2 3046 3066” — dealer, marineenergy.com.au · “Caterpillar 324-2598 Advanced Efficiency 3116 and 3126 Diesel Engine Oil Filter” — dealer, marineengineparts.com |
| Fuel filter | Caterpillar 1R-0751 Also: Baldwin BF7632, Fleetguard FF5324, WIX 33626 |
“Caterpillar 1R-0751 Advanced Efficiency 3116 and 3126 Diesel Engine Fuel Filter” — dealer, marineengineparts.com · “the secondary fuel filter Cat specifies for the 3114, 3116, 3126/B/E, C7, and C9 family” — dealer, allprodiesel.net |
| Raw-water impeller keyway-shaft Sherwood seawater pump |
Sherwood 17000K | “| **Impeller** | 17000K KEY WAY |” — dealer, marineenergy.com.au · “Caterpillar Marine Engines ... Common applications include: ... CAT 3116” — dealer, marisolmarine.com |
| Zinc / anode | Caterpillar 6L-2283 × 3 | “**Anode kit CAT3116** | 3 x 6L2283 2 x 6L2281 1 x 6L3104” — dealer, marineenergy.com.au · “Zinc Anode for Caterpillar Marine Engines 6L2283 NPT: 1/4”” — dealer, dieselpro.com |
From the engine maker’s parts lists, or two independent parts dealers. Numbers change with serial number and get superseded — check yours before ordering.
Cummins 6CTA 8.3 parts: good
Factory optional engine — you entered “Cummins 6CTA 8.3M diesel”
Mechanical 8.3 L C-series engine widely used in trawlers and sportfish boats; base parts are plentiful and rebuildable. Seaboard Marine sells an upgraded (SMX) raw water pump, aftercooler kits and parts.
Parts sources: Seaboard Marine, Diesel Pro Power
Common problems (2)
-
Aftercooler corrosion and core failure cooling
Corroded aftercooler cores can crack and let seawater into the intake, which is usually fatal to the engine; cores should be serviced and pressure tested regularly.trawlerforum.com · sbmar.com
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Raw water pump seal leaks cooling
The gear-driven raw water pump can leak oil or water at its seals; owners often replace the factory pump with an upgraded aftermarket pump.sbmar.com · trawlerforum.com
Maker’s service schedule (15)
| Engine oil & filter change | 300 hrs or 1 yr | “Maintenance Procedures at 300 Hours or 1 Year ... Lubricating Oil and Filters - Change” — manufacturer, dealers.doosanportablepower.com |
| Fuel filters & water separator | 300 hrs or 1 yr | “Maintenance Procedures at 300 Hours or 1 Year ... Fuel Filter (Spin-On Type) - Change ... Fuel-Water Separator Element -” — manufacturer, dealers.doosanportablepower.com |
| Raw-water pump impeller | 300 hrs or 1 yr | “Maintenance Procedures at 300 Hours or 1 Year ... Sea Water Pump - Replace” — manufacturer, dealers.doosanportablepower.com |
| Engine pencil zincs | 75 hrs or 3 mo | “Maintenance Procedures at 75 Hours or 3 Months” — manufacturer, dealers.doosanportablepower.com |
| Coolant replacement & freeze-point test | 600 hrs or 2 yrs | “Maintenance Procedures at 600 Hours or 2 Years ... Cooling System - Flush” — manufacturer, dealers.doosanportablepower.com |
| Valve clearance check / adjust | 600 hrs or 2 yrs | “Maintenance Procedures at 600 Hours or 2 Years ... Overhead Set - Adjust” — manufacturer, dealers.doosanportablepower.com |
| Heat exchanger & oil cooler cleaning | 300 hrs or 1 yr | “Maintenance Procedures at 300 Hours or 1 Year ... Heat Exchanger - Flush” — manufacturer, dealers.doosanportablepower.com |
| Turbocharger inspection | 300 hrs or 1 yr | “Maintenance Procedures at 300 Hours or 1 Year ... Aftercooler Assembly (Sea Water) - Flush” — manufacturer, dealers.doosanportablepower.com |
| Air filter / intake silencer | 300 hrs or 1 yr | “Maintenance Procedures at 300 Hours or 1 Year ... Air Cleaner Assembly (Engine-Mounted) - Check” — manufacturer, dealers.doosanportablepower.com |
| Drive belts inspect / replace | 600 hrs or 2 yrs | “Maintenance Procedures at 600 Hours or 2 Years ... Cooling Fan Belt Tensioner- Check” — manufacturer, dealers.doosanportablepower.com |
| Marine gear oil cooler flush | 300 hrs or 1 yr | “Maintenance Procedures at 300 Hours or 1 Year ... Marine Gear Oil Cooler - Flush” — manufacturer, dealers.doosanportablepower.com |
| Coolant filter change (if equipped) | 300 hrs or 1 yr | “Maintenance Procedures at 300 Hours or 1 Year ... Coolant Filter, if equipped - Change” — manufacturer, dealers.doosanportablepower.com |
| SCA and antifreeze concentration check | 300 hrs or 1 yr | “Maintenance Procedures at 300 Hours or 1 Year ... Supplemental Coolant Additive (SCA) and Antifreeze Concentration - Che” — manufacturer, dealers.doosanportablepower.com |
| Vibration damper inspect | 600 hrs or 2 yrs | “Maintenance Procedures at 600 Hours or 2 Years ... Vibration Damper, Viscous - Inspect for Reuse” — manufacturer, dealers.doosanportablepower.com |
| Sea water and cooling system hoses check | 75 hrs or 3 mo | “Maintenance Procedures at 75 Hours or 3 Months” — manufacturer, dealers.doosanportablepower.com |
Service part numbers (5)
| Oil filter | Cummins 3401544 | “Cummins Oil Filter 3401544 Spin-on type, 4.65" diameter, 11.69" height, thread size: 2 1/4" - 12 UN” — dealer, dieselpro.com · “Cummins Oil Filter 4906635 Cummins 4906635 3401544, 3318853 / Fleetguard LF9039 ... Cummins 6CT8.3” — dealer, marineenergy.com.au |
| Fuel filter late 6CTA 8.3-M |
Cummins 3890017 Also: Fleetguard FF5285 |
“Cummins 6BTA Fuel Filter 3890017 FF5285 ... suits late model Cummins 6BTA's, 6CTA8.3-M” — dealer, marineenergy.com.au · “Cummins Fuel Filter 3890017 3.7" diameter, 5.46" height” — dealer, dieselpro.com |
| Fuel filter fits some 6CTA 8.3 builds; dealers do not say which (different thread from 3890017) |
Cummins 3959612 | “Cummins 3959612 Replacement Fuel Filter Fleet Guard FF5488 ... for Cummins 6C8.3, 6CT8.3, 6CTA8.3” — dealer, marineenergy.com.au · “Cummins Fuel Filter 3959612 3.68" diameter, 6.92" height” — dealer, dieselpro.com |
| Raw-water impeller keyway-shaft Sherwood pump (e.g. P1730C, 11° offset flange) |
Sherwood 17000K | “Cummins Impeller for Key Shaft 17000K” — dealer, dieselpro.com · “Sherwood 17000K Impeller” — dealer, portdiesel.com |
| Drive belt | Cummins 5690194 | “Cummins Serpentine Belt for 6CTA 8.3 Engines 5690194, 3288812, 3290007 (BLUE)” — dealer, sbmar.com · “V-Ribbed Belt - 5690194” — dealer, portdiesel.com |
From the engine maker’s parts lists, or two independent parts dealers. Numbers change with serial number and get superseded — check yours before ordering.
Model sources (8)
hmy.com · clubsearay.com · yachtsurvey.com · rnr-marine.com · clubsearay.com · yachtdatabase.com · rnr-marine.com · everythingsearay.com
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Other Sea Ray models
- Sea Ray 270 Sundancer (1994-97, 1999) 1994–1999
- Sea Ray 300 Sundancer (1994-97) 1994–1997
- Sea Ray 330 Sundancer (1995-99) 1995–1999
- Sea Ray 340 Sundancer (1999-2002) 1999–2002
- Sea Ray 370 Sedan Bridge 1991–1997
- Sea Ray 380 Sundancer (1999-2003) 1999–2003
Researched from public sources. Spotted an error? The sources are listed above — tell us what they got wrong.