Sea Ray 340 Sundancer (1999-2002)
Built 1999–2002 by Sea Ray Boats
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About the Sea Ray 340 Sundancer (1999-2002)
Researched from public sources for this model. Any individual boat may have been modified or repowered — confirm before relying on any figure.
- Built
- 1999–2002
- Builder
- Sea Ray Boats
- Length
- 33.5 ft
- Beam
- 11.42 ft
- Draft
- 3 ft
- Displacement
- 13,000 lb
- Hull / keel
- planing
- Propulsion
- inboard
- Fuel
- 225 gal
- Water
- 40 gal
- Holding
- 28 gal
- Water heater
- 6 gal · AC + engine · standard
- Generator
- factory option
- Bow thruster
- not fitted
- Stern thruster
- not fitted
- Steering
- hydraulic
Tank capacities — where the figures come from
-
Fuel 225 gal
“Fuel capacity 225 gal 851.6 L” — brochure (2000), rnr-marine.com · “a 225-gallon aluminum fuel tank” — review (1999-2002), boatreviewbank.comSea Ray's 2000 spec sheet (a PDF posted by a dealer) confirms 225 gal; the review also gives 214 gal usable.
-
Water 40 gal
“Water capacity 40 gal 151.4 L” — brochure (2000), rnr-marine.com · “a 40-gallon plastic freshwater tank” — review (1999-2002), boatreviewbank.com
-
Holding 28 gal
“Holding tank 28 gal 106 L” — brochure (2000), rnr-marine.com · “a 28-gallon plastic holding tank” — review (1999-2002), boatreviewbank.com
-
Water heater 6 gal · AC + engine · standard
“Pressure Water System & 6-Gallon Water Heater w/Exchanger” — builder (2000), rnr-marine.comIn the Technical part of the 2000 standard-equipment list.
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 not fitted
“Technical (standard) list ... Options/Accessories ... Individual Options (no thruster listed)” — brochure (2000), rnr-marine.comThe 2000 builder spec sheet's standard and option lists include no bow thruster.
-
Stern thruster not fitted
“Technical (standard) list ... Options/Accessories ... Individual Options (no thruster listed)” — brochure (2000), rnr-marine.comNo stern thruster in the 2000 standard or option lists.
-
Steering hydraulic
“Hydraulic Steering w/Tilt Wheel (V-Drives Only)” — brochure (2000), rnr-marine.com · “Heavy-Duty Mechanical Steering” — brochure (2000), rnr-marine.com · “Standard engine VD-T-7.4L MPI MerCruiser” — brochure (2000), rnr-marine.comThe 2000 builder spec gives twin V-drives as standard power, with hydraulic steering and a tilt wheel standard on V-drive boats. The same standard list also carries heavy-duty mechanical steering, which applies to the optional sterndrive versions. Other years weren't checked.
Thrusters and steering are often replaced — check the units on your boat before ordering parts.
Sources disagree on hp / drive of 7.4L MPI sterndrive option — left blank rather than guessed.
Best-selling 34-ft express per HMY. LOA 33.5 ft (about 36.2 ft with swim platform per the 2000 spec sheet). Replaced by a restyled 340 in 2003. Narrow side decks. Engine list is from the 2000 model-year factory spec sheet.
Engines fitted
-
MerCruiser 7.4L MPI V-drive — 310 hp, gas, twin
standard
Sea Ray's 2000 spec sheet lists twin 7.4L MPI V-drives as 'new base power' (310 hp each).Sources: rnr-marine.com
-
MerCruiser 5.7L V-drive — 260 hp, gas, twin
standard
1999 model year base power per boatreviewbank's option table; replaced by the 7.4L MPI as base for 2000.Sources: boatreviewbank.com · rnr-marine.com
-
MerCruiser 350 Magnum MPI V-drive — 300 hp, gas, twin
factory option
Listed as a 1999 option by boatreviewbank.Sources: boatreviewbank.com
-
MerCruiser 454 Mag MPI Horizon V-drive — 380 hp, gas, twin
factory option
Optional twin gas V-drive with freshwater cooling on the 2000 spec sheet.Sources: rnr-marine.com · boatreviewbank.com
-
MerCruiser 7.4L MPI Bravo II / Bravo III sterndrive — 310 hp, gas, twin
factory option
2000 spec sheet lists both Bravo II and Bravo III 7.4L MPI sterndrives at 310 hp. boatreviewbank lists a 7.4L MPI Bravo I at 320 hp for 1999.Sources: rnr-marine.com · boatreviewbank.com
-
MerCruiser D4.2L D-Tronic (V-drive or Bravo III sterndrive) — 225 hp, diesel, twin
factory option
Twin diesel option offered both as V-drive inboards and Bravo III sterndrives.Sources: rnr-marine.com · boatreviewbank.com
Boats of the same model can differ — check which engines yours actually has before ordering parts.
Generator
factory option
“Generators - Remote Start w/Muffler, Freshwater Cooling, Fuel Filter & ... (Options/Accessories)” — builder (2000), rnr-marine.com
A generator sound box was a separate individual option on the 2000 sheet.
-
Westerbeke — 4.5 kW, gas
factory option
US 120V/60 Hz; export boats listed a 3.75 kW Westerbeke gas set.“120V/60 Cycle 4.5 kW Westerbeke Gas” — builder (2000), rnr-marine.com
-
Westerbeke — 5 kW, diesel
factory option
US 120V/60 Hz; export boats listed a 4.0 kW Westerbeke diesel.“120V/60 Cycle 5.0 kW Westerbeke Diesel” — builder (2000), 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
-
Cramped engine compartment engine
Twin V-drive gas engines sit close together under a power hatch, making plugs, raw-water pumps, strainers, starters and the generator hard to reach; V-drive packing service may require pulling exhaust risers.hmy.com · boatered.com
Engines & parts
MerCruiser 7.4 (454) V8 gas parts: good
Factory standard engine — you entered “MerCruiser 7.4L MPI V-drive”
GM big-block base; Marine Engine Depot and others sell 7.4 L engines and parts, and cast-iron riser kits run a few hundred dollars. Manifold and riser replacement is the main recurring expense.
Parts sources: Marine Engine Depot, Power Boat Supply
Common problems (2)
-
Manifold and riser corrosion exhaust
As with other gas marine V8s, internally rusted manifolds and risers can let water into the engine; periodic replacement is standard practice.powerandmotoryacht.com
-
Rough running and won't rev under load fuel
Common troubleshooting threads trace this to fuel delivery (filters, pump, carburetor) or ignition timing problems.justanswer.com · youtube.com
Maker’s service schedule (8)
| Engine oil & filter change | 100 hrs or 1 yr | “Most four-stroke outboards and sterndrive engines require an oil change either annually or every 100 hours of operation.” — manufacturer, mercurymarine.com |
| Fuel filters & water separator | 100 hrs or 1 yr | “The fuel filter on your engine should be inspected or replaced per the maintenance schedule in your owner's manual, usua” — manufacturer, mercurymarine.com |
| Raw-water pump impeller | 300 hrs or 3 yrs | “How often should my seawater pump impeller be serviced? Every 300 hours or 3 years, whichever comes first.” — manufacturer, mercurymarine.com |
| Spark plugs inspect / replace | 300 hrs or 3 yrs | “How often should spark plugs be changed? Every 300 hours or 3 years, whichever comes first.” — manufacturer, mercurymarine.com |
| Coolant replacement & freeze-point test closed (freshwater) cooling only | 5 yrs | “How often should coolant be changed on engines with closed cooling? Every 5 years.” — manufacturer, mercurymarine.com |
| Transmission fluid change sterndrive gear lube | 1 yr | “Gearcase lubricant in outboard and sterndrive lower units should also be changed annually or at the service interval spe” — manufacturer, mercurymarine.com |
| Lubricate steering linkage and check power-steering fluid sterndrive | 100 hrs or 1 yr | “Mercury Marine recommends lubricating the steering linkage and checking the power steering fluid level in ... MerCruiser” — manufacturer, mercurymarine.com |
| Check power trim fluid level sterndrive | 100 hrs or 1 yr | “Power trim and tilt fluid level should be checked annually or every 100 hours.” — manufacturer, mercurymarine.com |
Service part numbers (4)
| Oil filter | Mercury Quicksilver 35-866340Q03 | “Part number: 866340Q03 ... for MerCruiser sterndrive and inboard engines except V6 engines with the oil filter mounted o” — manufacturer, mercurymarine.com · “14957 FILTER, Oil (1 required per assembly) ... 35-866340Q03 - Oil Filter” — dealer, marineengine.com |
| Fuel filter carbureted engines (Rochester 4-barrel): filter inside carburetor fuel inlet |
Mercury 53336T | “For use on MerCruiser 3.0L, 4.3L, 5.0L , 5.7L and 7.4L engines with Rochester 2- and 4-barrel and MerCarb” — manufacturer, mercurymarine.com |
| Raw-water impeller Bravo sterndrive / inboard with pre-2000 engine-mounted plastic sea water pump |
Mercury Quicksilver 47-59362Q01 Also: Sierra 18-3087 |
“For MerCruiser engines with engine mounted, 2-piece, plastic sea water pumps.” — manufacturer, mercurymarine.com · “Included water Pump Impeller 59362Q01 fits Pre-2000 plastic seawater sea pumps. WILL NOT work on newer (2000+)” — dealer, midnightmarine.net |
| Thermostat standard cooling, 160 F |
Mercury Quicksilver 807252Q5 | “Thermostat 807252Q5 is for V6 and V8 MerCruiser engines ... made by General Motors (model year 1987-2016)” — manufacturer, mercurymarine.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.
MerCruiser 5.0 (305) / 5.7 (350) V8 gas parts: good
Factory standard engine — you entered “MerCruiser 5.7L V-drive”
GM small-block Chevrolet base engines, so internal parts are everywhere. Marine exhaust manifolds and risers for 1983–2002 small blocks are sold by many aftermarket makers (Sierra, Barr, Osco and others) through Power Boat Supply, Hardin Marine, Basic Power Industries and similar stores; Mercury sells genuine parts through dealers.
Parts sources: Power Boat Supply, Hardin Marine, Basic Power Industries
Common problems (2)
-
Manifold/riser failure and water in cylinders exhaust
Cast-iron manifolds and risers rust internally or their gaskets fail, letting water back into the cylinders; small amounts cause hard starting and rough running, large amounts hydrolock and wreck the engine. Service roughly every 7 years in fresh water and about 5 in salt.powerandmotoryacht.com · forums.iboats.com · justanswer.com
-
Overheating from scaled manifolds cooling
Rust and scale inside the manifolds restrict cooling flow and cause overheating under load.powerandmotoryacht.com
Maker’s service schedule (8)
| Engine oil & filter change | 100 hrs or 1 yr | “Most four-stroke outboards and sterndrive engines require an oil change either annually or every 100 hours of operation.” — manufacturer, mercurymarine.com |
| Fuel filters & water separator | 100 hrs or 1 yr | “The fuel filter on your engine should be inspected or replaced per the maintenance schedule in your owner's manual, usua” — manufacturer, mercurymarine.com |
| Raw-water pump impeller | 300 hrs or 3 yrs | “How often should my seawater pump impeller be serviced? Every 300 hours or 3 years, whichever comes first.” — manufacturer, mercurymarine.com |
| Spark plugs inspect / replace | 300 hrs or 3 yrs | “How often should spark plugs be changed? Every 300 hours or 3 years, whichever comes first.” — manufacturer, mercurymarine.com |
| Coolant replacement & freeze-point test closed (freshwater) cooling only | 5 yrs | “How often should coolant be changed on engines with closed cooling? Every 5 years.” — manufacturer, mercurymarine.com |
| Transmission fluid change sterndrive gear lube | 1 yr | “Gearcase lubricant in outboard and sterndrive lower units should also be changed annually or at the service interval spe” — manufacturer, mercurymarine.com |
| Lubricate steering linkage and check power-steering fluid sterndrive | 100 hrs or 1 yr | “Mercury Marine recommends lubricating the steering linkage and checking the power steering fluid level in ... MerCruiser” — manufacturer, mercurymarine.com |
| Check power trim fluid level sterndrive | 100 hrs or 1 yr | “Power trim and tilt fluid level should be checked annually or every 100 hours.” — manufacturer, mercurymarine.com |
Service part numbers (6)
| Oil filter | Mercury Quicksilver 35-866340Q03 | “Part number: 866340Q03 ... for MerCruiser sterndrive and inboard engines except V6 engines with the oil filter mounted o” — manufacturer, mercurymarine.com · “Includes: Oil Filter Oil Filter 866340Q03 Fuel Filter 802893Q01 ...” — dealer, midnightmarine.net |
| Fuel filter carbureted engines (Rochester 2-/4-barrel, MerCarb 2-barrel): filter inside carburetor fuel inlet |
Mercury 53336T | “For use on MerCruiser 3.0L, 4.3L, 5.0L , 5.7L and 7.4L engines with Rochester 2- and 4-barrel and MerCarb” — manufacturer, mercurymarine.com |
| Fuel filter MPI engines with Gen III cool fuel module (filter page: 2004 and newer; kit page: 2002 and newer) |
Mercury Quicksilver 35-8M0093688 | “Fits 2004 and newer Mercury/MerCruiser sterndrive and inboard engines with Gen III (3) fuel cooler” — manufacturer, mercurymarine.com |
| Raw-water impeller Bravo sterndrive and inboard engines with engine-mounted sea water pump (2-piece plastic pump per Mercury) |
Mercury Quicksilver 47-59362Q01 Also: Sierra 18-3087 |
“For MerCruiser engines with engine mounted, 2-piece, plastic sea water pumps.” — manufacturer, mercurymarine.com · “Water Pump Impeller 59362Q01” — dealer, midnightmarine.net |
| Thermostat standard cooling, 160 F |
Mercury Quicksilver 807252Q5 | “Thermostat 807252Q5 is for V6 and V8 MerCruiser engines ... made by General Motors (model year 1987-2016)” — manufacturer, mercurymarine.com |
| 100-hour maintenance kit (oil filter, fuel filter, drive seals) MPI engines with Gen III cool fuel module (2002 and newer) |
Mercury 8M0147053 | “Mercury 8M0147053 MerCruiser 5.0L, 5.7L, 6.2L, 8.1L and 8.2L V8 MPI ... 100 Hour Maintenance Kit” — manufacturer, mercurymarine.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 (4)
hmy.com · boatered.com · rnr-marine.com · boatreviewbank.com
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 370 Sedan Bridge 1991–1997
- Sea Ray 380 Sundancer (1999-2003) 1999–2003
- Sea Ray 400 Sedan Bridge 1996–2003
Researched from public sources. Spotted an error? The sources are listed above — tell us what they got wrong.