Dorman 577-402 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
$136.98
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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 |
|---|---|---|---|---|---|
| 2018 | Chevrolet | Silverado 1500 | Crew Cab Pickup | Pipe | |
| 2018 | GMC | Sierra (Mexico) | Crew Cab Pickup | Pipe | |
| 2018 | GMC | Sierra 1500 | Crew Cab Pickup | Pipe | |
| 2017 | Chevrolet | Silverado 1500 | Crew Cab Pickup | Pipe | |
| 2017 | GMC | Sierra (Mexico) | Crew Cab Pickup | Pipe | |
| 2017 | GMC | Sierra 1500 | Crew Cab Pickup | Pipe |
Product Specifications
| Cap Type: | No Cap |
|---|---|
| Clamps Included: | Yes |
| Color: | Black; Silver |
| Compatible Fuel Type: | Gas |
| Fill Pipe Inside Diameter: | 33 mm |
| Fuel Cap Included: | No |
| Hose Included: | Yes |
| Length: | 33 in |
| Material: | Steel; Rubber |
| Mounting Hardware Included: | No |
| Outside Diameter: | 28 mm |
| Package Contents: | Fuel Filler Neck |
| Package Quantity: | 1 |
| Packaging Type: | Box |
| Vent 1 Inside Diameter: | 8 mm |
| Vent 1 Type: | Metal and Hose Combination |
| Vent Line Attached: | Yes |
| Vent Quantity: | 1 |
OE Numbers
| DIRECT OE CROSS | |
|---|---|
| 84766924 | GENERAL MOTORS |
| 84766925 | GENERAL MOTORS |