Dorman 577-801 Fuel Filler Neck
OE Quality 60-Day Returns
Dorman

Dorman 577-801 Fuel Filler Neck

Brand Dorman 577-801
Fill Pipe Inside Diameter 1.75
Fuel Cap Included No
Length 19.9
Material Steel
Package Contents 1 Fuel Filler Neck
Fits Dodge · 17 vehicles

OE-style replacement. Precision-engineered and thoroughly tested for a reliable repair.

Steel construction. Built for durable fuel system service.

Fuel filler neck. Restores the original fuel fill path.

Cross-references Spectra Premium FN530 and 52018518 for the same application. See all 2.

$91.56Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $91.56
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Fuel Filler Neck options

Dorman 577-801 Fuel Tank Filler Neck

Restore proper fuel filling with this Dorman fuel tank filler neck for select Dodge Ram applications. Built from steel and engineered to match the original filler neck design, Dorman 577-801 is a direct replacement for vehicles with confirmed fitment, including Dodge Ram 2500 and Dodge Ram 3500 models.

Key Features

  • Steel construction for durable fuel system service
  • 19.9 in. overall length
  • 1.75 in. inside diameter fill pipe
  • Fuel cap not included
  • Designed as a replacement fuel filler neck for specific Dodge Ram 2500 and Dodge Ram 3500 applications

Product Details

This fuel filler neck is precision-engineered and tested to match the original part geometry for the listed vehicle applications. It is intended for fuel storage system repair on 1994-1997 Dodge Ram 2500 and Dodge Ram 3500 models with Single Rear Wheel (SRW), plus 1998 Dodge Ram 2500 applications built to 1/12/98, including Crew Cab Pickup coverage where noted. The Dorman 577-801 helps restore the connection between the fuel door area and the tank inlet when the original neck is corroded, damaged, or leaking. This part cross-references 52018518 and Spectra Premium FN530 for the same application.

What It Helps Fix

  • Fuel filler neck leaks
  • Corrosion at the filler tube
  • Cracked or damaged fuel inlet piping
  • Fueling difficulty caused by a worn neck assembly
  • Fuel odor from a compromised filler neck seal area

Installation Notes and Tips

Verify vehicle build date and configuration before ordering. Fits 1998 Dodge Ram 2500, N/A, to 1/12/98; Fits 1998 Dodge Ram 2500, N/A, to 1/12/98; Crew Cab Pickup; Fits 1994-1997 Dodge Ram 2500, N/A, with Single Rear Wheel (SRW); Fits 1994-1997 Dodge Ram 3500, N/A, with Single Rear Wheel (SRW). Compare the original filler neck length, diameter, and mounting points before installation. Fuel cap is not included.

Quality Assurance

Dorman designs this replacement filler neck to match the original part for the listed vehicle years, makes, and models, and each application is thoroughly tested for fit and function.

Related reading

This part fits 17 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypeLitersCylindersFuel TypePositionNotes
1998DodgeRam 2500Standard Cab Pickup5.9LL6DIESELN/ATo 1/12/98
1998DodgeRam 2500Extended Cab Pickup5.9LL6DIESELN/ATo 1/12/98
1998DodgeRam 2500—5.9LL6DIESELN/ATo 1/12/98; Crew Cab Pickup
1997DodgeRam 2500Standard Cab Pickup5.9LL6DIESELN/AFits vehicles with Single Rear Wheel (SRW)
1997DodgeRam 2500Extended Cab Pickup5.9LL6DIESELN/AFits vehicles with Single Rear Wheel (SRW)
1997DodgeRam 3500Standard Cab Pickup5.9LL6DIESELN/AFits vehicles with Single Rear Wheel (SRW)
1997DodgeRam 3500Extended Cab Pickup5.9LL6DIESELN/AFits vehicles with Single Rear Wheel (SRW)
1996DodgeRam 2500Standard Cab Pickup5.9LL6DIESELN/AFits vehicles with Single Rear Wheel (SRW)
1996DodgeRam 2500Extended Cab Pickup5.9LL6DIESELN/AFits vehicles with Single Rear Wheel (SRW)
1996DodgeRam 3500Standard Cab Pickup5.9LL6DIESELN/AFits vehicles with Single Rear Wheel (SRW)
1996DodgeRam 3500Extended Cab Pickup5.9LL6DIESELN/AFits vehicles with Single Rear Wheel (SRW)
1995DodgeRam 2500Standard Cab Pickup5.9LL6DIESELN/AFits vehicles with Single Rear Wheel (SRW)
1995DodgeRam 2500Extended Cab Pickup5.9LL6DIESELN/AFits vehicles with Single Rear Wheel (SRW)
1995DodgeRam 3500Standard Cab Pickup5.9LL6DIESELN/AFits vehicles with Single Rear Wheel (SRW)
1995DodgeRam 3500Extended Cab Pickup5.9LL6DIESELN/AFits vehicles with Single Rear Wheel (SRW)
1994DodgeRam 2500Standard Cab Pickup5.9LL6DIESELN/AFits vehicles with Single Rear Wheel (SRW)
1994DodgeRam 3500Standard Cab Pickup5.9LL6DIESELN/AFits vehicles with Single Rear Wheel (SRW)
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Spectra Premium — FN53052018518