Dorman 577-233 Fuel Tank Filler Neck

Name: Dorman 577-233 Fuel Tank Filler Neck
Brand: Dorman
SKU: BKKY-577-233
Price: 108.28 USD
Availability: InStock

⚙️ 168 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: Chevrolet and GMC, Express 1500, Express 2500, Express 3500, Savana 1500, Savana 2500, and Savana 3500

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Overview of the Dorman Fuel Tank Filler Neck 577-233

The Dorman 577-233 fuel tank filler neck is designed for reliable fuel delivery in Chevrolet Express and GMC Savana vans. Constructed from durable steel, this 17-inch filler neck ensures a secure and precise fit for your vehicle's fuel system.

Made from sturdy steel for long-lasting durability
Length of 17 inches to match OEM specifications
1-inch inside diameter fill pipe for proper fuel flow
Compatible with Chevrolet Express 1500, 2500, 3500 and GMC Savana 1500, 2500, 3500 models
Includes one fuel filler neck; fuel cap not included

Detailed Product Description

The Dorman 577-233 fuel tank filler neck is engineered to meet the exact requirements of Chevrolet Express and GMC Savana vans, including the 1500, 2500, and 3500 series. Its steel construction provides resistance to corrosion and wear, maintaining the integrity of the fuel system over time. The 17-inch length and 1-inch inside diameter fill pipe are designed to ensure proper fuel flow and a secure connection between the fuel tank and the filler opening. This part is essential for maintaining safe and efficient refueling operations.

Applications and Common Issues Addressed

Replacement for damaged or rusted fuel filler necks on Chevrolet Express and GMC Savana vans
Resolves fuel leaks caused by cracks or corrosion in the filler neck
Prevents fuel evaporation and contamination by ensuring a tight fuel system seal
Restores proper fuel flow during refueling to avoid spillage or slow fill times
Maintains compliance with vehicle fuel system specifications for emissions and safety

Installation Notes and Tips

When installing the Dorman 577-233 fuel tank filler neck, ensure the vehicle is parked on a level surface and the engine is cool. Remove the old filler neck carefully to avoid damaging surrounding components. Verify that the new filler neck matches the OEM length and diameter specifications. Tighten all clamps and connections securely to prevent leaks. Note that this part does not include a fuel cap, so reuse the existing cap or purchase separately if needed.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance for your Chevrolet Express and GMC Savana vehicles. The 577-233 fuel tank filler neck undergoes rigorous quality control to ensure durability and fitment accuracy. Please refer to Dorman's warranty policy for specific coverage details.

Brand	Dorman
Part Number	577-233
Material	Steel
Length	17
Fuel Cap Included	No
Fill Pipe Inside Diameter	1
Package Contents	1 fuel filler neck

This part fits 168 vehicles. Search below:

Year	Make	Model	Body Type	Liters	Cylinders	Fuel Type	Position	Notes
2019	Chevrolet	Express 2500				FLEX	N/A
2019	Chevrolet	Express 3500	Standard Passenger Van			FLEX	N/A
2019	Chevrolet	Express 3500	Standard Cargo Van			FLEX	N/A
2019	Chevrolet	Express 3500	Extended Cargo Van			FLEX	N/A
2019	Chevrolet	Express 3500	Extended Passenger Van			FLEX	N/A
2019	GMC	Savana 3500	Standard Passenger Van			FLEX	N/A
2019	GMC	Savana 3500	Standard Cargo Van			FLEX	N/A
2019	GMC	Savana 3500	Extended Cargo Van			FLEX	N/A
2019	GMC	Savana 3500	Standard Passenger Van			CNG	N/A
2019	GMC	Savana 3500	Standard Cargo Van			CNG	N/A
2019	GMC	Savana 3500	Extended Cargo Van			CNG	N/A
2018	Chevrolet	Express 2500				FLEX	N/A
2018	Chevrolet	Express 3500	Standard Passenger Van			FLEX	N/A
2018	Chevrolet	Express 3500	Standard Cargo Van			FLEX	N/A
2018	Chevrolet	Express 3500	Extended Cargo Van			FLEX	N/A
2018	Chevrolet	Express 3500	Extended Passenger Van			FLEX	N/A
2018	GMC	Savana 3500	Standard Passenger Van			FLEX	N/A
2018	GMC	Savana 3500	Standard Cargo Van			FLEX	N/A
2018	GMC	Savana 3500	Extended Cargo Van			FLEX	N/A
2018	GMC	Savana 3500	Extended Passenger Van			FLEX	N/A
2018	GMC	Savana 3500	Standard Passenger Van			CNG	N/A
2018	GMC	Savana 3500	Standard Cargo Van			CNG	N/A
2018	GMC	Savana 3500	Extended Cargo Van			CNG	N/A
2018	GMC	Savana 3500	Extended Passenger Van			CNG	N/A
2017	Chevrolet	Express 2500				FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2017	Chevrolet	Express 3500	Standard Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2017	Chevrolet	Express 3500	Standard Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2017	Chevrolet	Express 3500	Extended Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2017	Chevrolet	Express 3500	Extended Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2017	GMC	Savana 2500				FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2017	GMC	Savana 3500	Standard Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2017	GMC	Savana 3500	Standard Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2017	GMC	Savana 3500	Extended Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2017	GMC	Savana 3500	Extended Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2016	Chevrolet	Express 2500				FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2016	Chevrolet	Express 3500	Standard Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2016	Chevrolet	Express 3500	Standard Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2016	Chevrolet	Express 3500	Extended Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2016	Chevrolet	Express 3500	Extended Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2016	GMC	Savana 2500				FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2016	GMC	Savana 3500	Standard Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2016	GMC	Savana 3500	Standard Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2016	GMC	Savana 3500	Extended Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2016	GMC	Savana 3500	Extended Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2015	Chevrolet	Express 2500				GAS	N/A	wo/Left Hand Side Rear Hinged Door
2015	Chevrolet	Express 2500				FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2015	Chevrolet	Express 3500	Standard Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2015	Chevrolet	Express 3500	Standard Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2015	Chevrolet	Express 3500	Extended Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2015	Chevrolet	Express 3500	Extended Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2015	GMC	Savana 2500				FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2015	GMC	Savana 3500	Standard Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2015	GMC	Savana 3500	Standard Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2015	GMC	Savana 3500	Extended Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2015	GMC	Savana 3500	Extended Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2014	Chevrolet	Express 1500					N/A	wo/Left Hand Side Rear Hinged Door
2014	Chevrolet	Express 2500				FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2014	Chevrolet	Express 3500	Standard Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2014	Chevrolet	Express 3500	Standard Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2014	Chevrolet	Express 3500	Extended Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2014	Chevrolet	Express 3500	Extended Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2014	GMC	Savana 1500					N/A	wo/Left Hand Side Rear Hinged Door
2014	GMC	Savana 2500				FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2014	GMC	Savana 3500	Standard Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2014	GMC	Savana 3500	Standard Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2014	GMC	Savana 3500	Extended Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2014	GMC	Savana 3500	Extended Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2013	Chevrolet	Express 1500					N/A	wo/Left Hand Side Rear Hinged Door
2013	Chevrolet	Express 2500				FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2013	Chevrolet	Express 3500	Standard Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2013	Chevrolet	Express 3500	Standard Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2013	Chevrolet	Express 3500	Extended Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2013	Chevrolet	Express 3500	Extended Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2013	GMC	Savana 1500					N/A	wo/Left Hand Side Rear Hinged Door
2013	GMC	Savana 2500				FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2013	GMC	Savana 3500	Standard Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2013	GMC	Savana 3500	Standard Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2013	GMC	Savana 3500	Extended Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2013	GMC	Savana 3500	Extended Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2012	Chevrolet	Express 1500					N/A	wo/Left Hand Side Rear Hinged Door
2012	Chevrolet	Express 2500				FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2012	Chevrolet	Express 3500	Standard Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2012	Chevrolet	Express 3500	Standard Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2012	Chevrolet	Express 3500	Extended Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2012	Chevrolet	Express 3500	Extended Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2012	GMC	Savana 1500					N/A	wo/Left Hand Side Rear Hinged Door
2012	GMC	Savana 2500				FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2012	GMC	Savana 3500	Standard Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2012	GMC	Savana 3500	Standard Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2012	GMC	Savana 3500	Extended Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2012	GMC	Savana 3500	Extended Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2011	Chevrolet	Express 1500					N/A	wo/Left Hand Side Rear Hinged Door
2011	Chevrolet	Express 2500				FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2011	Chevrolet	Express 3500	Standard Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2011	Chevrolet	Express 3500	Standard Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2011	Chevrolet	Express 3500	Extended Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2011	Chevrolet	Express 3500	Extended Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2011	GMC	Savana 1500					N/A	wo/Left Hand Side Rear Hinged Door
2011	GMC	Savana 2500				FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2011	GMC	Savana 3500	Standard Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2011	GMC	Savana 3500	Standard Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2011	GMC	Savana 3500	Extended Cargo Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2011	GMC	Savana 3500	Extended Passenger Van			FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2010	Chevrolet	Express 1500					N/A	wo/Left Hand Side Rear Hinged Door
2010	Chevrolet	Express 2500				FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2010	Chevrolet	Express 3500	Standard Passenger Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2010	Chevrolet	Express 3500	Standard Cargo Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2010	Chevrolet	Express 3500	Extended Cargo Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2010	Chevrolet	Express 3500	Extended Passenger Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2010	GMC	Savana 1500					N/A	wo/Left Hand Side Rear Hinged Door
2010	GMC	Savana 2500				FLEX	N/A	wo/Left Hand Side Rear Hinged Door
2010	GMC	Savana 3500	Standard Passenger Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2010	GMC	Savana 3500	Standard Cargo Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2010	GMC	Savana 3500	Extended Cargo Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2010	GMC	Savana 3500	Extended Passenger Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2009	Chevrolet	Express 1500					N/A	wo/Left Hand Side Rear Hinged Door
2009	Chevrolet	Express 2500				GAS	N/A	wo/Left Hand Side Rear Hinged Door
2009	Chevrolet	Express 3500	Standard Passenger Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2009	Chevrolet	Express 3500	Standard Cargo Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2009	Chevrolet	Express 3500	Extended Cargo Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2009	Chevrolet	Express 3500	Extended Passenger Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2009	GMC	Savana 1500					N/A	wo/Left Hand Side Rear Hinged Door
2009	GMC	Savana 2500				GAS	N/A	wo/Left Hand Side Rear Hinged Door
2009	GMC	Savana 3500	Standard Passenger Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2009	GMC	Savana 3500	Standard Cargo Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2009	GMC	Savana 3500	Extended Cargo Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2009	GMC	Savana 3500	Extended Passenger Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2008	Chevrolet	Express 1500					N/A	wo/Left Hand Side Rear Hinged Door
2008	Chevrolet	Express 2500				GAS	N/A	wo/Left Hand Side Rear Hinged Door
2008	Chevrolet	Express 3500	Standard Passenger Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2008	Chevrolet	Express 3500	Standard Cargo Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2008	Chevrolet	Express 3500	Extended Cargo Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2008	Chevrolet	Express 3500	Extended Passenger Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2008	GMC	Savana 1500		4.3L	V6	GAS	N/A	wo/Left Hand Side Rear Hinged Door
2008	GMC	Savana 2500				GAS	N/A	wo/Left Hand Side Rear Hinged Door
2008	GMC	Savana 3500	Standard Passenger Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2008	GMC	Savana 3500	Standard Cargo Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2008	GMC	Savana 3500	Extended Cargo Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2008	GMC	Savana 3500	Extended Passenger Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2007	Chevrolet	Express 1500					N/A	wo/Left Hand Side Rear Hinged Door
2007	Chevrolet	Express 2500				GAS	N/A	wo/Left Hand Side Rear Hinged Door
2007	Chevrolet	Express 3500	Standard Passenger Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2007	Chevrolet	Express 3500	Standard Cargo Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2007	Chevrolet	Express 3500	Extended Cargo Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2007	Chevrolet	Express 3500	Extended Passenger Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2007	GMC	Savana 1500		5.3L	V8	GAS	N/A	wo/Left Hand Side Rear Hinged Door
2007	GMC	Savana 1500		4.3L	V6		N/A	wo/Left Hand Side Rear Hinged Door
2007	GMC	Savana 2500				GAS	N/A	wo/Left Hand Side Rear Hinged Door
2007	GMC	Savana 3500	Standard Passenger Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2007	GMC	Savana 3500	Standard Cargo Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2007	GMC	Savana 3500	Extended Cargo Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2007	GMC	Savana 3500	Extended Passenger Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2006	Chevrolet	Express 1500					N/A	wo/Left Hand Side Rear Hinged Door
2006	Chevrolet	Express 2500				GAS	N/A	wo/Left Hand Side Rear Hinged Door
2006	Chevrolet	Express 3500	Standard Passenger Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2006	Chevrolet	Express 3500	Standard Cargo Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2006	Chevrolet	Express 3500	Extended Cargo Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2006	Chevrolet	Express 3500	Extended Passenger Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2006	Chevrolet	Express 3500	Standard Cargo Van	4.8L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2006	Chevrolet	Express 3500	Extended Cargo Van	4.8L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2006	GMC	Savana 1500					N/A	wo/Left Hand Side Rear Hinged Door
2006	GMC	Savana 2500				GAS	N/A	wo/Left Hand Side Rear Hinged Door
2006	GMC	Savana 3500	Standard Cargo Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2006	GMC	Savana 3500	Extended Cargo Van	6.0L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2006	GMC	Savana 3500	Standard Cargo Van	4.8L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2006	GMC	Savana 3500	Extended Cargo Van	4.8L	V8		N/A	wo/Left Hand Side Rear Hinged Door
2005	Chevrolet	Express 2500				GAS	N/A	wo/Left Hand Side Rear Hinged Door
2005	GMC	Savana 2500				GAS	N/A	wo/Left Hand Side Rear Hinged Door

* 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:

20934914FN1198

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