HomeBelts and Cooling > Accessory Drive Belt System ComponentsDayco 5070923 Serpentine Belt - Main Drive
Part #: 5070923

Dayco 5070923 Serpentine Belt - Main Drive

Main Drive
⚙️ 26 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Land Rover, Dodge, Jaguar, and Mercedes-Benz, Discovery, Ram 2500, Ram 3500, Vanden Plas, XJ8, XJR, XK8, XKR, and CL600
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Durable Dayco Serpentine Belt for Select Dodge and Mercedes Models

The Dayco 5070923 serpentine belt is engineered to provide reliable accessory drive performance for vehicles including Dodge Ram 2500, Ram 3500, Jaguar XJ8, and Mercedes-Benz CL600. Constructed with EPDM and aramid reinforcement, this belt offers enhanced durability and resistance to wear under a wide range of operating temperatures.

  • Material: EPDM with aramid fiber reinforcement for strength and longevity
  • Top Width: 0.96 inches ensuring proper fit and tension
  • Effective Length: Approximately 92.32 inches (2344.93 mm) for precise compatibility
  • Rib Quantity: 7 ribs with a straight rib profile for smooth power transmission
  • Cross Section: K-section design optimized for accessory drive systems
  • Operating Temperature Range: -45°C to 212°F (-42.7°C to 100°C) suitable for diverse climates
  • Meets SAE J1459 and SAE J2432 standards for quality and performance

Technical Overview of Dayco 5070923 Serpentine Belt

This serpentine belt features a black EPDM rubber compound reinforced with aramid fibers, which enhances tensile strength and resistance to heat and abrasion. The 7-rib K-section design ensures efficient power transfer to engine accessories such as the alternator, power steering pump, and air conditioning compressor. With an outside circumference of approximately 92.98 inches (2361.70 mm), it is specifically designed to fit accessory drive systems on select Dodge, Jaguar, Land Rover, and Mercedes-Benz models.

Compatible Vehicles and Applications

The Dayco 5070923 serpentine belt is compatible with the following makes and models:

  • Dodge Ram 2500 and Ram 3500
  • Jaguar XJ8, XJR, XK8, and XKR
  • Land Rover Discovery
  • Mercedes-Benz CL600 and Vanden Plas

This belt is intended for use in accessory drive belt systems, replacing worn or damaged belts to maintain proper engine accessory function.

Common Issues Addressed by This Serpentine Belt

  • Eliminates slipping or squealing noises caused by worn belts
  • Prevents accessory drive failure due to belt breakage
  • Reduces risk of overheating by maintaining proper alternator and water pump operation
  • Improves power steering responsiveness by ensuring consistent belt tension
  • Maintains air conditioning compressor function for climate control

Installation Notes and Tips

When installing the Dayco 5070923 serpentine belt, ensure the belt routing matches the vehicle’s accessory drive diagram. Inspect pulleys and tensioners for wear or damage before installation. Proper tensioning is critical to avoid premature belt wear or slippage. It is recommended to replace the belt tensioner and idler pulleys if they show signs of wear during belt replacement.

Quality Assurance and Warranty

Dayco serpentine belts comply with SAE J1459 and SAE J2432 standards, ensuring consistent quality and performance. The EPDM and aramid reinforced construction provides durability under a wide temperature range from -45°C to 212°F. While specific warranty details may vary, Dayco products typically come with manufacturer-backed warranties covering defects in materials and workmanship.

BrandDayco
Part Number5070923
ColorBlack
Cross SectionK-Section
Effective Length92.32
Effective Length2344.93
MaterialEPDM, Aramid Reinforced
Maximum Operating Temperature100
Maximum Operating Temperature212
Minimum Operating Temperature-45
Minimum Operating Temperature-42.7
Outside Circumference92.98
Outside Circumference2361.70
Rib DepthStandard
Rib ProfileStraight Rib
Rib Quantity7
StandardsSAE J1459, SAE J2432
Top Width.96

This part fits 26 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2004Land RoverDiscoveryMain Drivew/A.C., w/o Active Cornering Enhancement
2003DodgeRam 25008.0LV10Main DriveCompatible with vehicles containing air conditioning.
2003DodgeRam 35008.0LV10Main DriveCompatible with vehicles containing air conditioning.
2003JaguarVanden PlasMain Drive
2003JaguarXJ8Main Drive
2003JaguarXJRMain Drive
2003Land RoverDiscoveryMain Drivew/A.C., w/o Active Cornering Enhancement
2002JaguarVanden PlasMain Drive
2002JaguarXJ8Main Drive
2002JaguarXJRMain Drive
2002JaguarXK8Main Drive
2002JaguarXKRMain Drive
2002Land RoverDiscoveryMain Drivew/A.C., w/o Active Cornering Enhancement
2002Mercedes-BenzCL600Main Drive1st Design
2001JaguarVanden PlasMain Drive
2001JaguarXJ8Main Drive
2001JaguarXJRMain Drive
2001JaguarXK8Main Drive
2001JaguarXKRMain Drive
2001Land RoverDiscoveryMain Drivew/A.C., w/o Active Cornering Enhancement
2000JaguarVanden PlasMain Drive
2000JaguarXJ8Main Drive
2000JaguarXJRMain Drive
2000JaguarXKRMain Drive
2000Land RoverDiscoveryMain Drivew/A.C., w/o Active Cornering Enhancement
1999Land RoverDiscoveryMain Drivew/A.C., w/o Active Cornering Enhancement

* 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:

7K9227K924

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.