Wellcraft 3400 Gran Sport (3400 Express)

• Fuel 270 gal
  “Fuel capacity 270 gal.” — brochure (1988), wellcraft.com · “Fuel Capacity 270 gallons” — brochure (1985), wellcraft.com · “Fuel Capacity 270 gallons” — brochure (1986), wellcraft.com · “Fuel capacity 270 gal.” — brochure (1987), wellcraft.com · “Fuel Capacity 270 gal” — brochure (1990), wellcraft.com · “Fuel Tank Capacity (gal): 270 gallons” — search excerpt, marinesource.com · “250 Gallons Fuel” — search excerpt (1987), boats-from-usa.com
  Wellcraft's own product-information sheets for 1985, 1986, 1987, 1988 and 1990 all give 270 gal. One private 1987 listing says 250, but the builder's figure outweighs it.
• Water 75 gal
  “Water capacity 75 gal.” — brochure (1988), wellcraft.com · “Water capacity 75 gal.” — brochure (1987), wellcraft.com · “Water 75 gal” — brochure (1990), wellcraft.com · “Water Capacity 62 gallons” — brochure (1985), wellcraft.com · “Water Capacity 62 gallons” — brochure (1986), wellcraft.com · “Water Tank Capacity (gal): 75 gallons” — search excerpt, marinesource.com · “40 Gallons Water” — search excerpt (1987), boats-from-usa.com
  The builder's sheets change with the year: 62 gal in 1985-86, then 75 gal from 1987 (the 1987, 1988 and 1990 sheets). We show 75 because it covers most model years; no builder sheets for 1984 or 1991-92 were found. One private 1987 listing says 40 gal, which the builder figures outweigh.
• Holding 25 gal
  Builder sheets list an electric head with holding tank as standard (1986-90) but give no size.
• Water heater size varies by year · AC + engine · factory option
  “Optional Equipment: Hot water heater w/exchanger 12 gal.” — builder (1987), wellcraft.com · “Optional Equipment: Hot water heater 120V 12 gal.; Hot water heater 120V 12 gal. w/exchanger” — builder (1988), wellcraft.com · “Standard Equipment: Water heater - 6 gal.” — builder (1990), wellcraft.com · “Optional Equipment: Water heater - 12 gallon; Water heater - 12 gal w/exchanger” — builder (1990), wellcraft.com
  The builder's product-information guides show a 12 gal heater (120 V, or 120 V with engine heat exchanger) as an option in 1987 and 1988, with none on the standard list; by 1990 a 6 gal heater was standard and the 12 gal (with or without exchanger) optional. The 1985 and 1986 guides list pressure water but no heater.

Tanks are often replaced or added on older boats — check the tank labels or a survey for yours.

• Bow thruster not fitted
  “Standard equipment and optional equipment lists (1987) contain no thruster” — builder (1987), wellcraft.com · “Standard equipment and optional equipment lists (1988) contain no thruster” — builder (1988), wellcraft.com · “Standard equipment and optional equipment lists (1990) contain no thruster” — builder (1990), wellcraft.com
  Wellcraft's product information guides for 1987, 1988 and 1990 give full standard and option lists; none offers a bow thruster.
• Stern thruster not fitted
  “Standard equipment and optional equipment lists (1987, 1988, 1990) contain no thruster” — builder (1987-1990), wellcraft.com
• Steering hydraulic
  “STANDARD EQUIPMENT: ... Hydraulic steering” — builder (1986), wellcraft.com · “STANDARD EQUIPMENT: ... Hydraulic steering” — builder (1987), wellcraft.com · “STANDARD EQUIPMENT: ... Hydraulic steering” — builder (1988), wellcraft.com
  Hydraulic steering is listed as standard in the 1986, 1987 and 1988 guides. The 1990 guide's shorter standard list doesn't mention steering at all, nor list it as an option, so 1990-92 is presumed unchanged but not confirmed. No steering maker is named.

Thrusters and steering are often replaced — check the units on your boat before ordering parts.