Dorman 576-306 Fuel Tank
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Dorman

Dorman 576-306 Fuel Tank

Brand Dorman 576-306
Material Steel
Capacity 20.5
Length 39.75
Color Silver
Width 26.5
Height 9.25
Lock Ring Included Yes
Filler Neck Length 17.5
Mounting Straps Included No
Sending Unit Included No
Filler Neck Attached Yes
Fuel Tank Coating Paint
Baffled Sump No
Attached Sump No
Package Contents Fuel tank ; lock ring; o ring
Fits Cadillac · 1 vehicle

OE direct replacement. Precision-engineered to match the fit and function of the original fuel tank.

Steel construction. Built from steel with a painted finish for durable fuel storage.

Lock ring included. Comes with an O-ring and attached filler neck for a complete tank assembly.

Cross-references Spectra Premium GM1213B and 25635148 for the same application. See all 2.

$255.42Free shipping
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Replacement Fuel Tank for Cadillac Fleetwood

This Dorman fuel tank is a steel replacement built to match the fit and function of the original tank on the specified vehicle. It is made for the 1986 Cadillac Fleetwood with a 20.5-gallon tank and attached filler neck, making it a direct option for restoring fuel storage on this application.

  • Brand: Dorman
  • Part number: 576-306
  • Steel construction with a silver painted coating
  • 20.5-gallon capacity
  • Filler neck attached; lock ring included
  • Package contents: fuel tank, lock ring, O-ring
  • Dimensions: 39.75 in. length, 26.5 in. width, 9.25 in. height

Fitment and Application Details

Fits 1986 Cadillac Fleetwood, N/A, 20.5 gallon tank; w/Filler Neck. This Dorman 576-306 fuel tank is specified for the 1986 Cadillac Fleetwood and is built around the original tank layout for that vehicle. If you are searching for a 1986 Cadillac Fleetwood fuel tank replacement or a Dorman 576-306 fuel tank for a 20.5-gallon application, this part matches the listed configuration.

This part cross-references Spectra Premium GM1213B and 25635148 for the same application.

What This Fuel Tank Helps Address

  • Corrosion or rust damage in the original steel tank
  • Fuel leaks caused by tank deterioration
  • Fuel storage issues from a damaged or missing filler neck
  • Fitment problems when replacing an OE-style tank on a 1986 Cadillac Fleetwood
  • Restoration needs for a vehicle with a 20.5-gallon fuel tank setup

Installation Notes and Tips

Verify the vehicle’s tank configuration before installation, including the 20.5-gallon capacity and filler neck arrangement. Mounting straps are not included, and the sending unit is not included, so transfer or source those components as needed for the repair. Confirm the lock ring and O-ring are properly seated during assembly, and inspect the fuel lines, vent connections, and surrounding hardware before reinstalling the tank.

Quality Assurance

Dorman manufactures this replacement fuel tank to match the fit and function of the original tank on the listed application. The steel construction, attached filler neck, and included lock ring support a direct replacement approach for the 1986 Cadillac Fleetwood fuel system.

Related reading

This part fits 1 vehicle
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypeNotes
1986CadillacFleetwoodRWD20.5 Gallon Tank; w/Filler Neck
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Spectra Premium — GM1213B25635148