OE Quality
60-Day Returns

Dayco 5050315 Serpentine Belt - Air Conditioning, Air Conditioning and Idler or Alternator
Reliable Serpentine Belt for Ford, Mercury, Nissan, and Toyota Vehicles
The Dayco 5050315 serpentine belt is engineered to provide consistent performance and durability for select Ford, Mercury, Nissan, and Toyota models. Designed with EPDM and aramid reinforcement, this belt offers enhanced strength and resistance to wear under various operating conditions.
- Material: EPDM with aramid reinforcement for durability
- Top Width: 0.68 inches
- Effective Length: 31.50 inches (800.10 mm)
- Outside Circumference: 32.16 inches (816.87 mm)
- Rib Quantity: 5 ribs with a straight rib profile
- Cross Section: K-section for optimal fit and performance
- Operating Temperature Range: -45°C to 100°C (-49°F to 212°F)
- Meets SAE J1459 and SAE J2432 standards
Durable Construction and Precise Specifications
The Dayco 5050315 serpentine belt is constructed from EPDM rubber combined with aramid fibers, which enhances tensile strength and resistance to heat and abrasion. Its 5-rib K-section design ensures proper engagement with pulleys, reducing slippage and noise. The belt’s effective length of 31.50 inches and outside circumference of 32.16 inches make it suitable for accessory drive systems requiring these exact dimensions. The straight rib profile and standard rib depth contribute to smooth operation and longevity under typical engine conditions.
Compatible Vehicles and Applications
This serpentine belt is compatible with various models including the Ford Escort, Mercury Lynx, Nissan Frontier and Xterra, as well as the Toyota Corolla and LN7. It is designed to replace worn or damaged belts in accessory drive belt systems, ensuring reliable power transmission to alternators, power steering pumps, and air conditioning compressors.
- Replaces worn or cracked serpentine belts
- Prevents belt slippage and squealing noises
- Maintains proper tension in accessory drive systems
- Supports efficient operation of engine accessories
Installation Notes and Tips
When installing the Dayco 5050315 serpentine belt, verify the belt routing diagram specific to your vehicle model. Ensure pulleys are clean and free of debris to prevent premature wear. Use a belt tensioner tool if applicable to achieve correct tension. Inspect other belt system components such as tensioners and idler pulleys during replacement to maintain system integrity.
Quality Assurance and Standards Compliance
Dayco 5050315 serpentine belt meets SAE J1459 and SAE J2432 standards, ensuring it adheres to industry requirements for performance and durability. The EPDM and aramid reinforced construction supports reliable operation across a wide temperature range from -45°C to 100°C (-49°F to 212°F). While no specific warranty information is provided, Dayco products are manufactured to meet OEM quality specifications for the listed vehicle applications.
| Brand | Dayco |
| Part Number | 5050315 |
| Material | Epdm, aramid reinforced |
| Top Width | .68 |
| Color | Black |
| Effective Length | 31.50 |
| Effective Length | 800.10 |
| Outside Circumference | 32.16 |
| Outside Circumference | 816.87 |
| Rib Quantity | 5 |
| Cross Section | K-section |
| Maximum Operating Temperature | 100 |
| Maximum Operating Temperature | 212 |
| Minimum Operating Temperature | -42.7 |
| Minimum Operating Temperature | -45 |
| Rib Depth | Standard |
| Rib Profile | Straight rib |
| Standards | Sae j1459, sae j2432 |
This part fits 20 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2004 | Nissan | Frontier | 3.3L | V6 | Alternator | |
| 2004 | Nissan | Xterra | 3.3L | V6 | Alternator | |
| 2003 | Nissan | Frontier | 3.3L | V6 | Alternator | |
| 2003 | Nissan | Xterra | 3.3L | V6 | Alternator | |
| 2002 | Nissan | Frontier | 3.3L | V6 | Alternator | |
| 2002 | Nissan | Xterra | 3.3L | V6 | Alternator | |
| 2001 | Nissan | Frontier | 3.3L | V6 | Alternator | |
| 2001 | Nissan | Xterra | 3.3L | V6 | Alternator | |
| 2000 | Nissan | Frontier | 3.3L | V6 | Alternator | |
| 2000 | Nissan | Xterra | 3.3L | V6 | Alternator | |
| 1999 | Nissan | Frontier | 3.3L | V6 | Alternator | |
| 1987 | Toyota | Corolla | Air Conditioning | without power steering | ||
| 1986 | Toyota | Corolla | Air Conditioning | without power steering | ||
| 1985 | Toyota | Corolla | 1.6L | L4 | Air Conditioning | without power steering |
| 1983 | Ford | Escort | Alternator | Fitment: Without air conditioning, 2 1/8 inch pulley. | ||
| 1983 | Mercury | LN7 | Alternator | Fitment: Without air conditioning, 2 1/8 inch pulley. | ||
| 1983 | Mercury | Lynx | Alternator | Fitment: Without air conditioning, 2 1/8 inch pulley. | ||
| 1982 | Ford | Escort | Alternator | Fitment: Without A.C., with 2 1/8 In. Pulley, compatible with 32 1/2 In. Belt | ||
| 1982 | Mercury | LN7 | Alternator | Fitment: Without A.C., with 2 1/8 In. Pulley, compatible with 32 1/2 In. Belt | ||
| 1982 | Mercury | Lynx | Alternator | Fitment: Without A.C., with 2 1/8 In. Pulley, compatible with 32 1/2 In. Belt |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.