Perspective view of a rectangular, metallic-finish 115-gallon fuel tank designed for a 1990 Concept Marine 21' boat. The image showcases the tank's top surface with various fittings, including a prominent curved fill neck or vent towards one end and a cluster of smaller connections for fuel lines and sender unit at the other.
Product image of a Concept Marine 21' 1990 model fuel tank, presented as a white, rectangular unit with metallic fittings on its top surface. Text overlay on the image reads "Concept Marine 21' 1990 Fuel Tank 100gal". Dimensions are indicated with arrows: 63" (length), 29 1/2" (width), and 13" (height). A "WW" logo is visible in the lower right corner.
Auxiliary fuel tank with a 24-gallon capacity, designed for a Grady-White 25 Sailfish (1992 model). Typically, these are rectangular aluminum tanks with appropriate fuel fittings. (Note: The provided image shows a different item: a 'Concept Marine 21' 1990 Water Tank 15gal', which is labeled within the image with its own specifications including dimensions 29 1/2", 10", 13", and a 15-gallon capacity.)
A 3D render showcasing two separate, black rectangular tanks positioned against a dark background. One tank is significantly longer than the other, and both feature various metallic fittings on their top surfaces, characteristic of fluid storage containers.
Top-angle 3D render of two black rectangular tanks—one long and one shorter—positioned adjacently. This view clearly displays the arrangement of various metallic fittings on the top surfaces of both tanks, set against a plain black background.
Intended for a Combo Concept Marine 21' 1990 Fuel-Water Tank, model QBD91_3. This type of unit would typically be a custom-designed tank, likely made of marine-grade aluminum, featuring separate compartments and distinct fittings for holding both fuel and fresh water. (Note: The image previously associated with this item was completely black and did not display the actual tank system.)
Intended for a Combo Concept Marine 21' 1990 Fuel-Water Tank, model QBD91_4. This marine component would typically be a custom-designed unit, likely constructed from marine-grade aluminum, featuring separate integrated compartments and distinct fittings for holding both fuel and fresh water. (Note: The image provided for this item was completely black and did not display any visual details of the tank system.)
Intended for a Concept Marine 21' (1990 model) 15-gallon Water Tank, with the identifier ".net_QBD91_2". This type of marine water tank would typically be constructed from materials like FDA-approved polyethylene or marine-grade aluminum and include fittings for water fill, vent, and outlet lines. (Note: The image provided for this item was entirely black and did not display any visual details of the water tank.)
Perspective view of a rectangular, metallic-finish 115-gallon fuel tank designed for a 1990 Concept Marine 21' boat. The image showcases the tank's top surface with various fittings, including a prominent curved fill neck or vent towards one end and a cluster of smaller connections for fuel lines and sender unit at the other.
Product image of a Concept Marine 21' 1990 model fuel tank, presented as a white, rectangular unit with metallic fittings on its top surface. Text overlay on the image reads "Concept Marine 21' 1990 Fuel Tank 100gal". Dimensions are indicated with arrows: 63" (length), 29 1/2" (width), and 13" (height). A "WW" logo is visible in the lower right corner.
Auxiliary fuel tank with a 24-gallon capacity, designed for a Grady-White 25 Sailfish (1992 model). Typically, these are rectangular aluminum tanks with appropriate fuel fittings. (Note: The provided image shows a different item: a 'Concept Marine 21' 1990 Water Tank 15gal', which is labeled within the image with its own specifications including dimensions 29 1/2", 10", 13", and a 15-gallon capacity.)
A 3D model render of an OEM replacement fuel tank designed for a Proline 251 Walkaround (1999 model). The light-colored model features a rectangular base with a stepped-up section on its top surface where various fittings are depicted, viewed from a perspective angle against a black background.
A 3D render showcasing two separate, black rectangular tanks positioned against a dark background. One tank is significantly longer than the other, and both feature various metallic fittings on their top surfaces, characteristic of fluid storage containers.
Top-angle 3D render of two black rectangular tanks—one long and one shorter—positioned adjacently. This view clearly displays the arrangement of various metallic fittings on the top surfaces of both tanks, set against a plain black background.
Intended for a Combo Concept Marine 21' 1990 Fuel-Water Tank, model QBD91_3. This type of unit would typically be a custom-designed tank, likely made of marine-grade aluminum, featuring separate compartments and distinct fittings for holding both fuel and fresh water. (Note: The image previously associated with this item was completely black and did not display the actual tank system.)
Intended for a Combo Concept Marine 21' 1990 Fuel-Water Tank, model QBD91_4. This marine component would typically be a custom-designed unit, likely constructed from marine-grade aluminum, featuring separate integrated compartments and distinct fittings for holding both fuel and fresh water. (Note: The image provided for this item was completely black and did not display any visual details of the tank system.)
Intended for a Concept Marine 21' (1990 model) 15-gallon Water Tank, with the identifier ".net_QBD91_2". This type of marine water tank would typically be constructed from materials like FDA-approved polyethylene or marine-grade aluminum and include fittings for water fill, vent, and outlet lines. (Note: The image provided for this item was entirely black and did not display any visual details of the water tank.)

Concept Marine 21' 1990 Fuel Tank 115 gal

$ 2,100.00
/
  • Local pickup available
  • Over-sized & over-weight item.
  • Only Ships LTL Freight.
  • Call us Mon.-Fri. 8:30 a.m. to 4:40 p.m. if in any doubt.

  • IMPORTANT NOTE: The base price is for local pickup in our SW Miami Shop. Check options above for crating and shipping to the contiguous 48 States. All tanks are made to order and the fabrication lead time is 2 work weeks. The finished tank pickup window is also 2 work weeks, so make sure you will be able to take delivery of your finished tank within that timeframe.  

  • Buy with confidence. Shortly after your payment clears you'll be sent via e-mail a complete set of detailed drawings for you to check all dimensions and fittings positions. If there's any difference from your old tank we can make any reasonable modifications to accommodate your needs. Fabrication of your new tank won't start until you send us your specs confirmation.    

  • .190 thickness Alcoa® 5052 H32 Series aluminum construction. 

  • Hand welded GTAW (TIG) welded to exceed ASME / ASW D3.7:2004 standards.

  • Sherwin Williams® TarGard® Epoxy painted for the best marine environment protection. 

  • KUS® (ex-WEMA USA®) reed switch sender with NBR float fuel level.

 NOTE: Check your tank dimensions thoroughly! Once a tank is manufactured and/or shipped we can't be responsible for mismatches and refunds or returns won't be accepted. All sales are final!

Fabrication lead time (before shipping): 2 work weeks. 

Shipping: Only freight to the 48 contiguous states. Contact us for extra-cost shipping options for HI and AK. Orders for international shipping from US-based carriers are welcome but contact us first to coordinate details.



Due to this item's size and weight we can only ship it in an economical way via Less Than Truckload (LTL) consolidated land shipping, and only to the contiguous 48 States.

For shipping inquiries to AK, HI, PR, US-VI, and international shipping, please contact us first at sales@weldingworldinc.com.

All of the destinations above we can only serve as a Free Carrier (or FCA) modality, that requires the customer to contract and pay for their carrier service of choice. We can still ship the item, but only to a warehouse/receiving office within the 48-contiguous States.

In plain terms what this means is that if you want to ship your product to any non-contiguous US territory or internationally, you, the customer, has to provide us with the warehouse address of the carrier that serves your locality with an address within the contiguous 48-US States, as we do not ship overseas on our own.

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