DealsBuying guidesBrandsStoresTermsPrivacydeal.ai apps

© Deal.ai Inc.

Deal.ai
Dorman
Dorman 576-121 Fuel Tank Compatible with Select Ford Models

Dorman 576-121 Fuel Tank Compatible with Select Ford Models

Best price now

$105.77at WalmartObserved at 5:15 PM

Compared across 6 stores. Prices are checked against each store and labelled with when.

Visit Walmart

Ask our shopping agent

Enter to send, Shift+Enter for a new line

Our take on the Dorman 576-121 Fuel Tank Compatible with Select Ford Models

The Dorman 576-121 is an 18-gallon steel replacement fuel tank for select Ford and Chevrolet trucks and cars, including 7.3L diesel applications. It is a bare tank: no sending unit, no mounting hardware, and no lock ring or gasket unless the specific application calls for them. It has internal baffles and a painted, rust-protected finish. At $105.77 at Walmart as of November 3, 2026, it sits at the low end of its recent range, well under typical dealer tank prices.

Best for
Owners of older Ford or Chevy trucks with a rusted or leaking tank
7.3L diesel owners replacing a tank after the rear axle
DIY mechanics who already have a good sending unit and hardware
Budget repairs where a dealer tank is too expensive
Pros
  • 18-gallon capacity matches many stock tanks
  • Steel construction with extra rust protection and painted finish
  • Internal baffles keep fuel pickup steady on turns and inclines
  • Low price: $105.77 at Walmart as of November 3, 2026
  • Reuses the existing sending unit, so no electrical work
Cons
  • No sending unit, lock ring, gasket or mounting hardware included
  • Fitment is application-specific; verify your year, model and engine first
  • Steel can rust again, especially in salt-belt states
  • Heavier than plastic alternatives
  • No capacity upgrade over a stock tank

Dorman 576-121 Fuel Tank Compatible with Select Ford Models prices at every store

  • WalmartNew

    In stock

    $105.77Free shippingObserved at 5:15 PM
    Visit store
  • eBayNew

    In stockSold by basalt-moto

    $110.90Free shippingObserved at 5:15 PM
    Visit store
  • Partsgeek.comNew

    In stock

    $103.11+ $15.95 shippingObserved at 5:15 PM
    Visit store
  • TRUCKiD.comNew

    In stock

    $109.58+ $12.65 shippingObserved at 5:15 PM
    Visit store
  • CarParts.comNew

    In stock

    $114.99+ $33.40 shippingObserved at 5:15 PM
    Visit store
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $105.77Free shippingObserved at 5:15 PM
    Visit store

Dorman 576-121 Fuel Tank Compatible with Select Ford Models price history

Lowest price we've seen: $103.11 on Nov 3 at Partsgeek.com. Tracked across 6 stores since Nov 3.

What reviewers say

Owner feedback on Dorman replacement tanks is mixed. Many report a direct fit and a trouble-free fix for a leaking or rusted tank, while others complain about fitment gaps, thin coating and hardware that had to be sourced separately.

Pros
  • Drops in with stock straps and lines on the listed applications
  • Noticeably cheaper than dealer or OEM tanks
  • Baffles and coating hold up well in normal use
Cons
  • Some units need bending or trimming to fit
  • Paint and coating can flake or rust within a few years
  • Missing gasket, lock ring and hardware add cost and trips

Specifications

Capacity
18 gallons
Material
Steel
Height
14.25 in
Length
34.75 in
Width
17 in
Sending Unit
No
Product Type
Replacement fuel tank
Compatible Fuel Type
Gasoline
Compatible Make
Specified vehicle makes, Chevrolet, Ford
Compatible Model
Specified vehicle models
Compatible Vehicle Type
Truck, Car, Vehicle
Compatible Vehicle Year
Specified vehicle years
Compatible Engine Type
7.3 liter desil
Compatible Other Parts
Lock ring (depending on application), Gasket (depending on application)
Corrosion Resistance
Equipped with extra protection against rust
Mounting Hardware Included
No
Baffles
Yes (Baffled Sump)
Mounting Type
After the rear axle
Finish
Paint

Questions and answers

Is the Dorman 576-121 worth it?
For a rusted or leaking stock tank on a listed Ford or Chevy application, yes. At $105.77 at Walmart as of November 3, 2026, it costs far less than a dealer tank, but budget for a gasket, lock ring and hardware if yours are worn.
Does it come with a fuel pump or sending unit?
No. It is a bare tank, so you reuse your existing sending unit and pump assembly. Check that your old unit is still good before installing.
Will it fit my truck?
Only if your year, model and engine are on Dorman's application list, including the 7.3L diesel fitments. Measure your old tank against the 34.75 x 17 x 14.25 in dimensions before ordering.
What else do I need to install it?
A lock ring and gasket for your application, plus mounting straps or hardware if yours are rusted. None are included, and the tank mounts after the rear axle.
Is it steel or plastic?
Steel, with a painted finish and extra rust protection. It is heavier than a plastic tank and can rust again in salty climates, so keep the coating intact.
When is it cheapest?
The $105.77 Walmart price as of November 3, 2026 is already near the bottom of its recent range. Compare the six stores listing it before buying, since shipping on a large tank can erase small savings.
Where is the Dorman 576-121 Fuel Tank Compatible with Select Ford Models cheapest?
At Walmart, for $105.77, as of our latest check.
Where can I buy the Dorman 576-121 Fuel Tank Compatible with Select Ford Models?
6 stores we checked sell it, including Partsgeek.com, Walmart, TRUCKiD.com, eBay, CarParts.com.