Dorman 577-403 Fuel Tank Filler Neck
Fuel Filler Neck for Silverado and Sierra
Dorman 577-403 is a replacement fuel tank filler neck for select 2017-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 applications. It is built to match the original neck’s fit and function for a direct repair when the factory filler neck is leaking or corroded.
Key Features
- Steel and rubber construction for fuel system service
- Black and silver finish
- Fuel filler neck with hose included
- Clamps included
- Vent line attached with one vent line assembly
- No fuel cap included
- Compatible with gas fuel systems
- Part number: 577-403
Detailed Description
This Dorman fuel tank filler neck is engineered and tested to match the original filler neck on specific Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. The assembly measures 43 in length, with a 34 mm fill pipe inside diameter, 32 mm outside diameter, and an 8 mm vent line inside diameter. It uses a metal-and-hose vent design and is supplied in a no-cap configuration for vehicles that retain the original cap arrangement elsewhere in the fuel system. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. Part number 577-403 is a practical replacement when the original neck has rust, cracking, or fuel seepage at the hose connection.
What It Helps Fix
- Fuel odor caused by a leaking filler neck
- Visible corrosion or rust on the fuel inlet tube
- Cracked rubber sections or damaged hose connections
- Vent line leaks or restricted venting at the neck assembly
- Refueling issues caused by a worn or distorted filler neck
Installation Notes
Fits 2017-2018 Chevrolet Silverado 1500, N/A. Fits 2017-2018 GMC Sierra 1500, N/A. Fits 2017-2018 GMC Sierra, N/A. Compare the original neck, hose routing, vent connection, and diameter measurements before installation. Transfer any vehicle-specific components not supplied with the assembly, and verify secure clamp placement and leak-free connections after installation.
Quality Assurance
Dorman manufactures this replacement filler neck to match original equipment dimensions and application requirements for the listed Silverado and Sierra trucks. The part is thoroughly tested for fit and function as part of Dorman’s replacement component lineup.
Original: $186.54
-65%$186.54
$65.29Dorman 577-403 Fuel Tank Filler Neck
Fuel Filler Neck for Silverado and Sierra
Dorman 577-403 is a replacement fuel tank filler neck for select 2017-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 applications. It is built to match the original neck’s fit and function for a direct repair when the factory filler neck is leaking or corroded.
Key Features
- Steel and rubber construction for fuel system service
- Black and silver finish
- Fuel filler neck with hose included
- Clamps included
- Vent line attached with one vent line assembly
- No fuel cap included
- Compatible with gas fuel systems
- Part number: 577-403
Detailed Description
This Dorman fuel tank filler neck is engineered and tested to match the original filler neck on specific Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. The assembly measures 43 in length, with a 34 mm fill pipe inside diameter, 32 mm outside diameter, and an 8 mm vent line inside diameter. It uses a metal-and-hose vent design and is supplied in a no-cap configuration for vehicles that retain the original cap arrangement elsewhere in the fuel system. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. Part number 577-403 is a practical replacement when the original neck has rust, cracking, or fuel seepage at the hose connection.
What It Helps Fix
- Fuel odor caused by a leaking filler neck
- Visible corrosion or rust on the fuel inlet tube
- Cracked rubber sections or damaged hose connections
- Vent line leaks or restricted venting at the neck assembly
- Refueling issues caused by a worn or distorted filler neck
Installation Notes
Fits 2017-2018 Chevrolet Silverado 1500, N/A. Fits 2017-2018 GMC Sierra 1500, N/A. Fits 2017-2018 GMC Sierra, N/A. Compare the original neck, hose routing, vent connection, and diameter measurements before installation. Transfer any vehicle-specific components not supplied with the assembly, and verify secure clamp placement and leak-free connections after installation.
Quality Assurance
Dorman manufactures this replacement filler neck to match original equipment dimensions and application requirements for the listed Silverado and Sierra trucks. The part is thoroughly tested for fit and function as part of Dorman’s replacement component lineup.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Fuel Filler Neck for Silverado and Sierra
Dorman 577-403 is a replacement fuel tank filler neck for select 2017-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 applications. It is built to match the original neck’s fit and function for a direct repair when the factory filler neck is leaking or corroded.
Key Features
- Steel and rubber construction for fuel system service
- Black and silver finish
- Fuel filler neck with hose included
- Clamps included
- Vent line attached with one vent line assembly
- No fuel cap included
- Compatible with gas fuel systems
- Part number: 577-403
Detailed Description
This Dorman fuel tank filler neck is engineered and tested to match the original filler neck on specific Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. The assembly measures 43 in length, with a 34 mm fill pipe inside diameter, 32 mm outside diameter, and an 8 mm vent line inside diameter. It uses a metal-and-hose vent design and is supplied in a no-cap configuration for vehicles that retain the original cap arrangement elsewhere in the fuel system. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. Part number 577-403 is a practical replacement when the original neck has rust, cracking, or fuel seepage at the hose connection.
What It Helps Fix
- Fuel odor caused by a leaking filler neck
- Visible corrosion or rust on the fuel inlet tube
- Cracked rubber sections or damaged hose connections
- Vent line leaks or restricted venting at the neck assembly
- Refueling issues caused by a worn or distorted filler neck
Installation Notes
Fits 2017-2018 Chevrolet Silverado 1500, N/A. Fits 2017-2018 GMC Sierra 1500, N/A. Fits 2017-2018 GMC Sierra, N/A. Compare the original neck, hose routing, vent connection, and diameter measurements before installation. Transfer any vehicle-specific components not supplied with the assembly, and verify secure clamp placement and leak-free connections after installation.
Quality Assurance
Dorman manufactures this replacement filler neck to match original equipment dimensions and application requirements for the listed Silverado and Sierra trucks. The part is thoroughly tested for fit and function as part of Dorman’s replacement component lineup.
