2012-2016 Mercedes-Benz Evap Vent Hose / Fuel Breather Line 2780103403
OEM Part #: 278-010-34-03 (2780103403)
Actual photo
The exact part you’ll receive — not a stock photo.
$37.49
Used
Donor2013 Mercedes-Benz GL450 · 4.7L
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Genuine OEM Used
SKU: 662660
Donor Vehicle: 2013 Mercedes-Benz GL450 · 4.7L
3 photos
HAS A BROKEN HOSE MOUNT, SEE PICTURES
$37.49
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This used OEM Mercedes-Benz EVAP Vent Hose / Fuel Breather Line (2780103403) is a genuine EVAP system hose from a donor vehicle. Also called the fuel breather line, it connects the fuel tank to the charcoal canister to manage fuel vapor pressure. A cracked vent hose often triggers a check engine light for an EVAP leak or causes a fuel odor around the vehicle. It came from either a 3.0L turbocharged V6 or a 4.7L V8 (naturally aspirated or turbocharged) in models like the GL450 or GLE500.
Specifications
| Fits Vehicle Model | GL450 |
| Fits Vehicle Make | Mercedes-Benz |
| OEM Part No | 278-010-34-03 (2780103403) |
| Category | Fuel / Emissions |
Compatible Vehicles
Fits 5 vehicle configurations across 1 make, 2012-2016.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 5 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2016 | Mercedes-Benz | GL450 | SUV | 3.0L V6 Turbo | |
| 2015 | Mercedes-Benz | GL450 | SUV | 3.0L V6 Turbo | |
| 2014 | Mercedes-Benz | GL450 | SUV | 4.7L V8 Turbo | |
| 2013 | Mercedes-Benz | GL450 | SUV | 4.7L V8 Turbo | |
| 2012 | Mercedes-Benz | GL450 | SUV | 4.7L V8 |