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OE Quality
60-Day Returns
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DormanPart #: 577-948
Dorman 577-948 Fuel Tank Filler Neck - Upper
⚙️ 12 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$96.60Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet, GMC, and Oldsmobile, Blazer, Bravada, and Jimmy
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Fuel Tank Filler Neck options
Dorman 577-948 Fuel Tank Filler Neck - Upper
| Brand | Dorman |
| Part Number | 577-948 |
| Material | Steel |
| Length | 18.3 |
| Fuel Cap Included | No |
| Fill Pipe Inside Diameter | 2 |
| Package Contents | 1 fuel filler neck |
This part fits 12 vehicles. Search below:
| Year | Make | Model | # Doors | Position | Notes |
|---|---|---|---|---|---|
| 2000 | Chevrolet | Blazer | 4 Door | Upper | 1 Piece |
| 2000 | GMC | Jimmy | 4 Door | Upper | 1 Piece |
| 2000 | Oldsmobile | Bravada | Upper | 1 Piece | |
| 1999 | Chevrolet | Blazer | 4 Door | Upper | 1 Piece |
| 1999 | GMC | Jimmy | 4 Door | Upper | 1 Piece |
| 1999 | Oldsmobile | Bravada | Upper | 1 Piece | |
| 1998 | Chevrolet | Blazer | 4 Door | Upper | 1 Piece |
| 1998 | GMC | Jimmy | 4 Door | Upper | 1 Piece |
| 1998 | Oldsmobile | Bravada | Upper | 1 Piece | |
| 1997 | Chevrolet | Blazer | 4 Door | Upper | 1 Piece |
| 1997 | GMC | Jimmy | 4 Door | Upper | 1 Piece |
| 1997 | Oldsmobile | Bravada | Upper | 1 Piece |
* 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:
15725300FN855
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.