Dorman 577-341 Fuel Tank Filler Neck - Rear
Fuel Tank Filler Neck for Silverado and Sierra
This Dorman fuel tank filler neck is a direct replacement for leaking or damaged filler neck assemblies on select Chevrolet Silverado 3500 and GMC Sierra 3500 HD dual-tank applications. Built from steel and engineered to match the original shape and fit, Dorman 577-341 supports a reliable repair for rear fuel tank service.
- Steel construction for durable fuel system service
- 37-inch length for the specified rear tank application
- 1-inch inside diameter fill pipe
- No fuel cap included
- Includes the filler neck, hoses, and ground wire listed in the package contents
- Fits rear-position dual-tank configurations on select Silverado 3500 and Sierra 3500 HD trucks
Detailed Product Overview
Dorman 577-341 is a replacement fuel tank filler neck designed for specific Chevrolet Silverado 3500, Silverado 3500 HD, and GMC Sierra 3500 HD trucks with rear dual tanks. It is precision-engineered and tested to match the original filler neck dimensions and routing, helping restore proper fuel fill function where the factory neck has corroded, cracked, or begun leaking. This part cross-references OE-style numbers such as 20955282 and FN87 for the same application.
Common Repair Symptoms
- Fuel odor near the rear tank area
- Visible rust, cracking, or leakage at the filler neck
- Slow or difficult refueling
- Fuel splash-back during fill-up
- Corrosion-related failure at the neck or hose connections
Installation Notes
Verify rear dual-tank fitment before installation. Compare the original neck length, routing, and hose connections to the replacement part, and inspect the surrounding hoses and ground wire during service. Confirm that the fill pipe inside diameter matches the vehicle’s original specification before assembly. For 2011-2016 Chevrolet Silverado 3500 HD and 2011-2016 GMC Sierra 3500 HD rear dual-tank trucks, as well as 2011 and 2013-2016 Chevrolet Silverado 3500 rear dual-tank trucks, this part is the specified replacement.
Quality Assurance
Dorman tests this replacement filler neck to match the original part for the listed vehicle applications. The steel construction and application-specific design support a dependable repair for fuel storage service on Chevrolet Silverado 3500 and GMC Sierra 3500 HD models.
Dorman 577-341 Fuel Tank Filler Neck - Rear
Fuel Tank Filler Neck for Silverado and Sierra
This Dorman fuel tank filler neck is a direct replacement for leaking or damaged filler neck assemblies on select Chevrolet Silverado 3500 and GMC Sierra 3500 HD dual-tank applications. Built from steel and engineered to match the original shape and fit, Dorman 577-341 supports a reliable repair for rear fuel tank service.
- Steel construction for durable fuel system service
- 37-inch length for the specified rear tank application
- 1-inch inside diameter fill pipe
- No fuel cap included
- Includes the filler neck, hoses, and ground wire listed in the package contents
- Fits rear-position dual-tank configurations on select Silverado 3500 and Sierra 3500 HD trucks
Detailed Product Overview
Dorman 577-341 is a replacement fuel tank filler neck designed for specific Chevrolet Silverado 3500, Silverado 3500 HD, and GMC Sierra 3500 HD trucks with rear dual tanks. It is precision-engineered and tested to match the original filler neck dimensions and routing, helping restore proper fuel fill function where the factory neck has corroded, cracked, or begun leaking. This part cross-references OE-style numbers such as 20955282 and FN87 for the same application.
Common Repair Symptoms
- Fuel odor near the rear tank area
- Visible rust, cracking, or leakage at the filler neck
- Slow or difficult refueling
- Fuel splash-back during fill-up
- Corrosion-related failure at the neck or hose connections
Installation Notes
Verify rear dual-tank fitment before installation. Compare the original neck length, routing, and hose connections to the replacement part, and inspect the surrounding hoses and ground wire during service. Confirm that the fill pipe inside diameter matches the vehicle’s original specification before assembly. For 2011-2016 Chevrolet Silverado 3500 HD and 2011-2016 GMC Sierra 3500 HD rear dual-tank trucks, as well as 2011 and 2013-2016 Chevrolet Silverado 3500 rear dual-tank trucks, this part is the specified replacement.
Quality Assurance
Dorman tests this replacement filler neck to match the original part for the listed vehicle applications. The steel construction and application-specific design support a dependable repair for fuel storage service on Chevrolet Silverado 3500 and GMC Sierra 3500 HD models.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Fuel Tank Filler Neck for Silverado and Sierra
This Dorman fuel tank filler neck is a direct replacement for leaking or damaged filler neck assemblies on select Chevrolet Silverado 3500 and GMC Sierra 3500 HD dual-tank applications. Built from steel and engineered to match the original shape and fit, Dorman 577-341 supports a reliable repair for rear fuel tank service.
- Steel construction for durable fuel system service
- 37-inch length for the specified rear tank application
- 1-inch inside diameter fill pipe
- No fuel cap included
- Includes the filler neck, hoses, and ground wire listed in the package contents
- Fits rear-position dual-tank configurations on select Silverado 3500 and Sierra 3500 HD trucks
Detailed Product Overview
Dorman 577-341 is a replacement fuel tank filler neck designed for specific Chevrolet Silverado 3500, Silverado 3500 HD, and GMC Sierra 3500 HD trucks with rear dual tanks. It is precision-engineered and tested to match the original filler neck dimensions and routing, helping restore proper fuel fill function where the factory neck has corroded, cracked, or begun leaking. This part cross-references OE-style numbers such as 20955282 and FN87 for the same application.
Common Repair Symptoms
- Fuel odor near the rear tank area
- Visible rust, cracking, or leakage at the filler neck
- Slow or difficult refueling
- Fuel splash-back during fill-up
- Corrosion-related failure at the neck or hose connections
Installation Notes
Verify rear dual-tank fitment before installation. Compare the original neck length, routing, and hose connections to the replacement part, and inspect the surrounding hoses and ground wire during service. Confirm that the fill pipe inside diameter matches the vehicle’s original specification before assembly. For 2011-2016 Chevrolet Silverado 3500 HD and 2011-2016 GMC Sierra 3500 HD rear dual-tank trucks, as well as 2011 and 2013-2016 Chevrolet Silverado 3500 rear dual-tank trucks, this part is the specified replacement.
Quality Assurance
Dorman tests this replacement filler neck to match the original part for the listed vehicle applications. The steel construction and application-specific design support a dependable repair for fuel storage service on Chevrolet Silverado 3500 and GMC Sierra 3500 HD models.
