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DormanPart #: 577-341
Dorman 577-341 Fuel Tank Filler Neck - Rear
⚙️ 16 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$218.42Free 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 and GMC, Sierra 3500 HD, Silverado 3500, and Silverado 3500 HD
🔄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 577-341 Fuel Tank Filler Neck - Rear
| Brand | Dorman |
| Part Number | 577-341 |
| Material | Steel |
| Length | 37 |
| Fuel Cap Included | No |
| Fill Pipe Inside Diameter | 1 |
| Package Contents | 1 filler neck; 4 hoses; 1 ground wire |
This part fits 16 vehicles. Search below:
| Year | Make | Model | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2016 | Chevrolet | Silverado 3500 | Cab & Chassis | 6.0L | V8 | Rear | Dual Tanks |
| 2016 | Chevrolet | Silverado 3500 HD | Cab & Chassis | 6.0L | V8 | Rear | Dual Tanks |
| 2016 | GMC | Sierra 3500 HD | Cab & Chassis | 6.0L | V8 | Rear | Dual Tanks |
| 2015 | Chevrolet | Silverado 3500 | Cab & Chassis | 6.0L | V8 | Rear | Dual Tanks |
| 2015 | Chevrolet | Silverado 3500 HD | Cab & Chassis | 6.0L | V8 | Rear | Dual Tanks |
| 2015 | GMC | Sierra 3500 HD | Cab & Chassis | 6.0L | V8 | Rear | Dual Tanks |
| 2014 | Chevrolet | Silverado 3500 HD | Cab & Chassis | 6.0L | V8 | Rear | Dual Tanks |
| 2014 | GMC | Sierra 3500 HD | Cab & Chassis | 6.0L | V8 | Rear | Dual Tanks |
| 2013 | Chevrolet | Silverado 3500 | Cab & Chassis | 6.0L | V8 | Rear | Dual Tanks |
| 2013 | Chevrolet | Silverado 3500 HD | Cab & Chassis | 6.0L | V8 | Rear | Dual Tanks |
| 2013 | GMC | Sierra 3500 HD | Cab & Chassis | 6.0L | V8 | Rear | Dual Tanks |
| 2012 | Chevrolet | Silverado 3500 HD | Cab & Chassis | 6.0L | V8 | Rear | Dual Tanks |
| 2012 | GMC | Sierra 3500 HD | Cab & Chassis | 6.0L | V8 | Rear | Dual Tanks |
| 2011 | Chevrolet | Silverado 3500 | Cab & Chassis | 6.0L | V8 | Rear | Dual Tanks |
| 2011 | Chevrolet | Silverado 3500 HD | Cab & Chassis | 6.0L | V8 | Rear | Dual Tanks |
| 2011 | GMC | Sierra 3500 HD | Cab & Chassis | 6.0L | V8 | Rear | Dual Tanks |
* 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:
20955282FN87
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.