2012-2020 Mercedes-Benz Drive Belt Pulley Mount / Bracket 2782340039
OEM Part #: 278-234-00-39 (2782340039)
Actual photo
The exact part you’ll receive — not a stock photo.
$22.11
Used
Donor2013 Mercedes-Benz GL450 · 4.7L
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Genuine OEM Used
SKU: 662494
Donor Vehicle: 2013 Mercedes-Benz GL450 · 4.7L
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$22.11
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The genuine Mercedes-Benz drive belt pulley mount/bracket (OEM 2782340039) is a used component taken from a donor vehicle. This bracket secures the drive belt pulley system and can cause belt misalignment, squealing, or accessory drive failure if cracked or worn. Found on many Mercedes models with M278, M157, and M273 engines—including turbocharged 4.0L V8 and naturally aspirated 5.5L V8 variants—it ensures proper belt tension and smooth accessory operation. Inspect for deformation or broken mounting ears before reuse.
Specifications
| Fits Vehicle Model | CLS550, CLS63 AMG, CLS63 AMG S, E550, E63 AMG, E63 AMG S, GL450, S550, S63 AMG, SL550 |
| Fits Vehicle Make | Mercedes-Benz |
| OEM Part No | 278-234-00-39 (2782340039) |
| Category | Mount / Bracket |
Compatible Vehicles
Fits 73 vehicle configurations across 1 make, 2012-2020.
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 73 vehicle configurations — 23 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2012 | Mercedes-Benz | CLS550 | Sedan | 4.7L V8 Turbo | 4.7 LITER |
| 2015 | Mercedes-Benz | CLS550 | Sedan | 4.7L V8 Turbo | 4.7 LITER |
| 2014 | Mercedes-Benz | CLS550 | Sedan | 4.7L V8 Turbo | 4.7 LITER |
| 2013 | Mercedes-Benz | CLS550 | Sedan | 4.7L V8 Turbo | 4.7 LITER |
| 2016 | Mercedes-Benz | CLS550 | Sedan | 4.7L V8 Turbo | 4.7 LITER |
| 2020 | Mercedes-Benz | SL550 | Convertible | 4.7L V8 Turbo | 4.6 LITER-V8 |
| 2019 | Mercedes-Benz | SL550 | Convertible | 4.7L V8 Turbo | 4.6 LITER-V8 |
| 2018 | Mercedes-Benz | SL550 | Convertible | 4.7L V8 Turbo | 4.6 LITER-V8 |
| 2017 | Mercedes-Benz | SL550 | Convertible | 4.7L V8 Turbo | 4.6 LITER-V8 |
| 2016 | Mercedes-Benz | SL550 | Convertible | 4.7L V8 Turbo | 4.6 LITER-V8 |
| 2015 | Mercedes-Benz | SL550 | Convertible | 4.7L V8 Turbo | 4.6 LITER-V8 |
| 2017 | Mercedes-Benz | S550 | Sedan | 4.7L V8 Turbo | 4.6 liter |
| 2017 | Mercedes-Benz | S550 | Convertible | 4.7L V8 Turbo | 4.6 liter |
| 2016 | Mercedes-Benz | S550 | Sedan | 4.7L V8 Turbo | 4.6 liter |
| 2015 | Mercedes-Benz | S550 | Sedan | 4.7L V8 Turbo | 4.6 liter |
| 2014 | Mercedes-Benz | S550 | Sedan | 4.7L V8 Turbo | 4.6 liter |
| 2017 | Mercedes-Benz | S550 | Coupe | 4.7L V8 Turbo | 4.6 liter |
| 2017 | Mercedes-Benz | CLS550 | Sedan | 4.7L V8 Turbo | 4.7 LITER |
| 2016 | Mercedes-Benz | S550 | Coupe | 4.7L V8 Turbo | 4.6 liter |
| 2015 | Mercedes-Benz | S550 | Coupe | 4.7L V8 Turbo | 4.6 liter |
| 2014 | Mercedes-Benz | SL550 | Convertible | 4.7L V8 Turbo | 4.6 LITER-V8 |
| 2013 | Mercedes-Benz | SL550 | Convertible | 4.7L V8 Turbo | 4.6 LITER-V8 |
| 2018 | Mercedes-Benz | CLS550 | Sedan | 4.7L V8 Turbo | 4.7 LITER |
| 2014 | Mercedes-Benz | E550 | Convertible | 4.7L V8 Turbo | |
| 2015 | Mercedes-Benz | E550 | Convertible | 4.7L V8 Turbo | |
| 2015 | Mercedes-Benz | E550 | Coupe | 4.7L V8 Turbo | |
| 2016 | Mercedes-Benz | E550 | Convertible | 4.7L V8 Turbo | |
| 2016 | Mercedes-Benz | E550 | Coupe | 4.7L V8 Turbo | |
| 2017 | Mercedes-Benz | E550 | Convertible | 4.7L V8 Turbo | |
| 2017 | Mercedes-Benz | E550 | Coupe | 4.7L V8 Turbo | |
| 2012 | Mercedes-Benz | GL450 | SUV | 4.7L V8 | |
| 2014 | Mercedes-Benz | E550 | Coupe | 4.7L V8 Turbo | |
| 2014 | Mercedes-Benz | E550 | Sedan | 4.7L V8 Turbo | |
| 2012 | Mercedes-Benz | E550 | Sedan | 4.7L V8 Turbo | |
| 2012 | Mercedes-Benz | E550 | Convertible | 4.7L V8 Turbo | |
| 2012 | Mercedes-Benz | E550 | Coupe | 4.7L V8 Turbo | |
| 2013 | Mercedes-Benz | E550 | Sedan | 4.7L V8 Turbo | |
| 2013 | Mercedes-Benz | E550 | Convertible | 4.7L V8 Turbo | |
| 2013 | Mercedes-Benz | E550 | Coupe | 4.7L V8 Turbo | |
| 2014 | Mercedes-Benz | GL450 | SUV | 4.7L V8 Turbo | |
| 2015 | Mercedes-Benz | GL450 | SUV | 3.0L V6 Turbo | |
| 2015 | Mercedes-Benz | E63 AMG | Sedan | 5.5L V8 Turbo | |
| 2015 | Mercedes-Benz | E63 AMG S | Sedan | 5.5L V8 Turbo | |
| 2015 | Mercedes-Benz | E63 AMG S | Wagon | 5.5L V8 Turbo | |
| 2016 | Mercedes-Benz | CLS63 AMG S | Sedan | 5.5L V8 Turbo | |
| 2016 | Mercedes-Benz | E63 AMG S | Sedan | 5.5L V8 Turbo | |
| 2016 | Mercedes-Benz | E63 AMG S | Wagon | 5.5L V8 Turbo | |
| 2017 | Mercedes-Benz | CLS63 AMG S | Sedan | 5.5L V8 Turbo | |
| 2018 | Mercedes-Benz | CLS63 AMG S | Sedan | 5.5L V8 Turbo | |
| 2018 | Mercedes-Benz | E63 AMG S | Sedan | 4.0L V8 Turbo | |
| 2018 | Mercedes-Benz | E63 AMG S | Wagon | 4.0L V8 Turbo | |
| 2015 | Mercedes-Benz | CLS63 AMG S | Sedan | 5.5L V8 Turbo | |
| 2014 | Mercedes-Benz | E63 AMG S | Wagon | 5.5L V8 Turbo | |
| 2014 | Mercedes-Benz | E63 AMG S | Sedan | 5.5L V8 Turbo | |
| 2017 | Mercedes-Benz | S63 AMG | Coupe | 5.5L V8 Turbo | |
| 2016 | Mercedes-Benz | GL450 | SUV | 3.0L V6 Turbo | |
| 2014 | Mercedes-Benz | S63 AMG | Sedan | 5.5L V8 Turbo | |
| 2015 | Mercedes-Benz | S63 AMG | Coupe | 5.5L V8 Turbo | |
| 2015 | Mercedes-Benz | S63 AMG | Sedan | 5.5L V8 Turbo | |
| 2016 | Mercedes-Benz | S63 AMG | Coupe | 5.5L V8 Turbo | |
| 2016 | Mercedes-Benz | S63 AMG | Sedan | 5.5L V8 Turbo | |
| 2017 | Mercedes-Benz | S63 AMG | Convertible | 5.5L V8 Turbo | |
| 2017 | Mercedes-Benz | S63 AMG | Sedan | 5.5L V8 Turbo | |
| 2012 | Mercedes-Benz | CLS63 AMG | Sedan | 5.5L V8 Turbo | |
| 2012 | Mercedes-Benz | E63 AMG | Sedan | 5.5L V8 Turbo | |
| 2012 | Mercedes-Benz | E63 AMG | Wagon | 5.5L V8 Turbo | |
| 2013 | Mercedes-Benz | CLS63 AMG | Sedan | 5.5L V8 Turbo | |
| 2013 | Mercedes-Benz | E63 AMG | Sedan | 5.5L V8 Turbo | |
| 2013 | Mercedes-Benz | E63 AMG | Wagon | 5.5L V8 Turbo | |
| 2014 | Mercedes-Benz | CLS63 AMG | Sedan | 5.5L V8 Turbo | |
| 2014 | Mercedes-Benz | CLS63 AMG S | Sedan | 5.5L V8 Turbo | |
| 2014 | Mercedes-Benz | E63 AMG | Sedan | 5.5L V8 Turbo | |
| 2013 | Mercedes-Benz | GL450 | SUV | 4.7L V8 Turbo |