Dayco 5070788 serpentine belt for the 2017 Mercedes-Benz GLS350d and other vehicles runs the fan, alternator and air conditioning off the engine. This Dayco serpentine belt is the main drive belt and loops around the engine's accessory pulleys.
- EPDM belt body with aramid reinforcement
- K-section cross section with a straight rib profile and standard rib depth
- Meets SAE J1459 and SAE J2432 standards
- Operating temperature range of -45 °F to 212 °F (-42.7 °C to 100 °C)
Quick facts
- Part: Dayco 5070788 serpentine belt
- Fits: 2017 Mercedes-Benz GLS350d and other vehicles
- Position: Fan, alternator and air conditioning, main drive
- Material: EPDM, aramid reinforced
- Condition: New
Cracks, fraying or missing chunks of rib on the belt, or a squeal from the front of the engine, can mean the belt is worn, though a weak belt tensioner or a seized idler pulley can be behind the same signs.
Fits
The vehicles it fits include the 2017 Mercedes-Benz GLS350d, the 2012-2014 Mercedes-Benz ML350 V6 3.0L and the 2003-2005 GMC C7500 Topkick 6-cylinder 7.8L, and each takes one belt. If your vehicle is not named here, look up your year, make and model in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: Fan, alternator and air conditioning, main drive
- Quantity per vehicle: 1
- Cross section: K-section
- Rib profile: Straight rib
- Rib depth: Standard
Build and materials
- Material: EPDM, aramid reinforced
- Standards: SAE J1459, SAE J2432
- Operating temperature: -45 °F to 212 °F (-42.7 °C to 100 °C)
- Condition: New
Interchange: 25-070786 · 25-070786HD
7K786 · K070786HD · 7PK2000 · K070786 · 4070785
This part cross-references / interchanges with the following part numbers:
7K786, K070786HD, 7PK2000, K070786, 4070785, 25-070786, 25-070786HD, 12622598, 15020893, 002.993.50.96, A002.993.50.96
Frequently Asked Questions
Is this the right serpentine belt for a 2012-2014 Mercedes-Benz ML350 V6 3.0L?
Yes. Dayco 5070788 is listed for the 2012-2014 Mercedes-Benz ML350 V6 3.0L, and that engine takes one belt.
Does this Dayco fan belt also drive the alternator and air conditioning?
Yes. Dayco 5070788 is the main drive belt for the fan, alternator and air conditioning on the vehicles it fits.
What is this Dayco drive belt made of?
Dayco 5070788 is made of EPDM with aramid reinforcement. It has a K-section cross section, a straight rib profile and standard rib depth.
How do I look over a worn serpentine belt with the engine off?
With the engine off and cool, look along the ribbed side for cracks, fraying or missing pieces of rib. A squeal from the front of the engine can also be a sign of a worn belt.
Does Dayco 5070788 replace 7PK2000?
Yes. 7PK2000 is one of the interchange numbers listed for Dayco 5070788.
