HomeAir and Fuel Delivery > Fuel StorageDorman 577-156 Fuel Tank Filler Neck
Part #: 577-156

Dorman 577-156 Fuel Tank Filler Neck

⚙️ 6 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford and Mercury, Escape and Mariner
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Fuel Tank Filler Neck for Ford Escape and Mercury Mariner

The Dorman 577-156 fuel tank filler neck is designed to provide a durable and precise fit for Ford Escape and Mercury Mariner models. Constructed from steel with a black finish, this fuel filler neck ensures long-lasting performance and compatibility with gasoline fuel systems.

Key Features of Dorman 577-156 Fuel Filler Neck

  • Material: Heavy-duty steel construction for strength and corrosion resistance
  • Length: 28 inches, designed to fit specific vehicle fuel systems
  • Color: Black finish for corrosion protection and aesthetic consistency
  • Vent Line: Includes one metal vent line attached for proper fuel tank ventilation
  • Fill Pipe Inside Diameter: 2 inches, compatible with standard fuel caps
  • Cap Type: Twist style cap compatibility (cap not included)
  • Compatible Fuel Type: Gasoline
  • Package Contents: One fuel filler neck

Detailed Product Description

The Dorman 577-156 fuel tank filler neck is engineered to meet the specifications of Ford Escape and Mercury Mariner vehicles. Its steel construction provides durability against wear and environmental factors, while the black coating helps prevent rust and corrosion. The 28-inch length and 2-inch inside diameter fill pipe ensure a proper fit and secure fuel flow. This part includes a metal vent line to maintain proper tank pressure and prevent fuel vapor buildup. Note that the fuel cap and mounting hardware are not included with this part.

Common Applications and Problem Resolution

  • Replacement for damaged or corroded fuel filler necks on Ford Escape and Mercury Mariner
  • Solves fuel leakage issues caused by cracked or worn filler necks
  • Restores proper venting to prevent fuel tank pressure problems
  • Addresses fuel odor or vapor leaks around the filler area
  • Ensures secure fuel fill and prevents contamination

Installation Notes and Tips

Installation requires removal of the old filler neck and proper alignment of the vent line. Since mounting hardware and fuel cap are not included, retain or replace these components as needed. Verify the 2-inch fill pipe diameter matches your vehicle’s fuel cap specifications. Professional installation is recommended to ensure a secure and leak-free fit.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 577-156 fuel tank filler neck undergoes quality checks to ensure durability and compatibility with Ford Escape and Mercury Mariner models. Warranty coverage details should be confirmed with the product documentation or manufacturer.

BrandDorman
Part Number577-156
MaterialSteel
Length28.
Hose IncludedNo
ColorBlack
Mounting Hardware IncludedNo
Fuel Cap IncludedNo
Vent Line AttachedYes
Vent Quantity1
Fill Pipe Inside Diameter2
Compatible Fuel TypeGas
Vent 1 TypeMetal
Cap TypeTwist
Package Contents1 fuel filler neck

This part fits 6 vehicles. Search below:

YearMakeModelFuel TypePositionNotes
2007FordEscapeGASN/A
2007MercuryMarinerGASN/A
2006FordEscapeGASN/A
2006MercuryMarinerGASN/A
2005FordEscapeGASN/A
2005MercuryMarinerGASN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

5L8Z9034A

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.