Dorman 577-233 Fuel Tank Filler Neck
Confirm Fitment Before You Buy
Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price
$86.93
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Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.
Product Description
Fuel filler neck leaking? This replacement fuel filler neck is precision-engineered and thoroughly tested to match the original filler neck for specific vehicle years, makes and models for a reliable repair.
- Direct replacement - this fuel filler neck is made to match the original equipment on specific vehicles
- Durable construction - made of corrosion-resistant materials to reduce future failure potential
- Regulatory compliant - built to meet emission and inspection standards
- Trustworthy value - backed by team of engineers and quality control experts in the United States
Detailed Applications
| Year | Make | Model | Configuration | Positions | Application Notes |
|---|---|---|---|---|---|
| 2019 | Chevrolet | Express 2500 | FLEX | ||
| 2019 | Chevrolet | Express 3500 | Extended Cargo Van; FLEX | ||
| 2019 | Chevrolet | Express 3500 | Extended Passenger Van; FLEX | ||
| 2019 | Chevrolet | Express 3500 | Standard Cargo Van; FLEX | ||
| 2019 | Chevrolet | Express 3500 | Standard Passenger Van; FLEX | ||
| 2019 | Chevrolet | Express Cargo (Mexico) | wo/Left Hand Side Rear Hinged Door | ||
| 2019 | Chevrolet | Express Pasajeros (Mexico) | wo/Left Hand Side Rear Hinged Door | ||
| 2019 | GMC | Savana 3500 | Extended Cargo Van; CNG | ||
| 2019 | GMC | Savana 3500 | Extended Cargo Van; FLEX | ||
| 2019 | GMC | Savana 3500 | Standard Cargo Van; CNG | ||
| 2019 | GMC | Savana 3500 | Standard Cargo Van; FLEX | ||
| 2019 | GMC | Savana 3500 | Standard Passenger Van; CNG | ||
| 2019 | GMC | Savana 3500 | Standard Passenger Van; FLEX | ||
| 2018 | Chevrolet | Express 2500 | FLEX | ||
| 2018 | Chevrolet | Express 3500 | Extended Cargo Van; FLEX | ||
| 2018 | Chevrolet | Express 3500 | Extended Passenger Van; FLEX | ||
| 2018 | Chevrolet | Express 3500 | Standard Cargo Van; FLEX | ||
| 2018 | Chevrolet | Express 3500 | Standard Passenger Van; FLEX | ||
| 2018 | Chevrolet | Express Cargo (Mexico) | wo/Left Hand Side Rear Hinged Door | ||
| 2018 | Chevrolet | Express Pasajeros (Mexico) | wo/Left Hand Side Rear Hinged Door | ||
| 2018 | GMC | Savana 3500 | Extended Cargo Van; CNG | ||
| 2018 | GMC | Savana 3500 | Extended Cargo Van; FLEX | ||
| 2018 | GMC | Savana 3500 | Extended Passenger Van; CNG | ||
| 2018 | GMC | Savana 3500 | Extended Passenger Van; FLEX | ||
| 2018 | GMC | Savana 3500 | Standard Cargo Van; CNG | ||
| 2018 | GMC | Savana 3500 | Standard Cargo Van; FLEX | ||
| 2018 | GMC | Savana 3500 | Standard Passenger Van; CNG | ||
| 2018 | GMC | Savana 3500 | Standard Passenger Van; FLEX | ||
| 2017 | Chevrolet | Express 2500 | FLEX | wo/Left Hand Side Rear Hinged Door | |
| 2017 | Chevrolet | Express 3500 | Extended Cargo Van; FLEX | wo/Left Hand Side Rear Hinged Door | |
| 2017 | Chevrolet | Express 3500 | Extended Passenger Van; FLEX | wo/Left Hand Side Rear Hinged Door | |
| 2017 | Chevrolet | Express 3500 | Standard Cargo Van; FLEX | wo/Left Hand Side Rear Hinged Door | |
| 2017 | Chevrolet | Express 3500 | Standard Passenger Van; FLEX | wo/Left Hand Side Rear Hinged Door | |
| 2017 | Chevrolet | Express Cargo (Mexico) | wo/Left Hand Side Rear Hinged Door | ||
| 2017 | Chevrolet | Express Pasajeros (Mexico) | wo/Left Hand Side Rear Hinged Door | ||
| 2017 | GMC | Savana 2500 | FLEX | wo/Left Hand Side Rear Hinged Door | |
| 2017 | GMC | Savana 3500 | Extended Cargo Van; FLEX | wo/Left Hand Side Rear Hinged Door | |
| 2017 | GMC | Savana 3500 | Extended Passenger Van; FLEX | wo/Left Hand Side Rear Hinged Door | |
| 2017 | GMC | Savana 3500 | Standard Cargo Van; FLEX | wo/Left Hand Side Rear Hinged Door | |
| 2017 | GMC | Savana 3500 | Standard Passenger Van; FLEX | wo/Left Hand Side Rear Hinged Door | |
| 2016 | Chevrolet | Express 2500 | FLEX | wo/Left Hand Side Rear Hinged Door | |
| 2016 | Chevrolet | Express 3500 | Extended Cargo Van; FLEX | wo/Left Hand Side Rear Hinged Door | |
| 2016 | Chevrolet | Express 3500 | Extended Passenger Van; FLEX | wo/Left Hand Side Rear Hinged Door | |
| 2016 | Chevrolet | Express 3500 | Standard Cargo Van; FLEX | wo/Left Hand Side Rear Hinged Door | |
| 2016 | Chevrolet | Express 3500 | Standard Passenger Van; FLEX | wo/Left Hand Side Rear Hinged Door | |
| 2016 | Chevrolet | Express Cargo (Mexico) | wo/Left Hand Side Rear Hinged Door | ||
| 2016 | Chevrolet | Express Pasajeros (Mexico) | wo/Left Hand Side Rear Hinged Door | ||
| 2016 | GMC | Savana 2500 | FLEX | wo/Left Hand Side Rear Hinged Door | |
| 2016 | GMC | Savana 3500 | Extended Cargo Van; FLEX | wo/Left Hand Side Rear Hinged Door | |
| 2016 | GMC | Savana 3500 | Extended Passenger Van; FLEX | wo/Left Hand Side Rear Hinged Door |
Product Specifications
| Fuel Cap Included: | No |
|---|---|
| Length: | 17 in |
| Material: | Steel |
| Outside Diameter: | 1 in |
| Package Contents: | 1 Fuel Filler Neck |
| Package Quantity: | 1 |
| Packaging Type: | Box |
OE Numbers
| DIRECT OE CROSS | |
|---|---|
| 20934914 | GENERAL MOTORS |
| 20979211 | GENERAL MOTORS |
| 25849110 | GENERAL MOTORS |
| 25957106 | GENERAL MOTORS |