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Dayco 5070855 Serpentine Belt - Main Drive
| Brand | Dayco 5070855 |
|---|---|
| Position | Main Drive |
| Color | Black |
| Cross Section | K-Section |
| Effective Length | 85.50 |
| Effective Length | 2171.70 |
| Material | EPDM, Aramid Reinforced |
| Maximum Operating Temperature | 100 |
| Maximum Operating Temperature | 212 |
| Minimum Operating Temperature | -45 |
| Minimum Operating Temperature | -42.7 |
| Outside Circumference | 86.16 |
| Outside Circumference | 2188.47 |
| Rib Depth | Standard |
| Rib Profile | Straight Rib |
| Rib Quantity | 7 |
| Standards | SAE J1459, SAE J2432 |
| Top Width | .96 |
| Fits | Ford, Lincoln, and Mercury · 4 vehicles |
Aramid reinforced. EPDM construction helps resist wear and heat in demanding accessory drive systems.
Seven-rib design. Delivers dependable grip and smooth power transfer for accessory drive operation.
SAE standards. Built to meet SAE J1459 and SAE J2432 requirements.
Cross-references ACDelco 7K855, Atlas 7K0855 and Bando 7PK2170 for the same application. See all 25.
Dayco 5070855 Serpentine Belt Overview
The Dayco 5070855 serpentine belt is a K-section accessory drive belt built for consistent power transfer in the engine drive system. It uses EPDM with aramid reinforcement for durability, with a 7-rib straight-rib profile and black finish for OE-style service replacement.
Compatible With 1991-1992 Ford Crown Victoria, Main Drive; 1991-1992 Lincoln Town Car, Main Drive; and 1992 Mercury Grand Marquis, Main Drive. This Dayco 5070855 belt also cross-references Gates K070855 for the same application.
Key Features
- EPDM construction with aramid reinforcement for strength and wear resistance
- 7-rib K-section design for accessory drive applications
- Top width of .96 in. and effective length of 85.50 in. for OE-style sizing
- Outside circumference of 86.16 in. for application matching
- Straight-rib profile with standard rib depth
- Built to SAE J1459 and SAE J2432 standards
- Operating temperature range from -45°F to 212°F
Detailed Description
Dayco 5070855 is a serpentine belt for main drive use in select Ford, Lincoln, and Mercury vehicles. It is specified for 1991-1992 Ford Crown Victoria, 1991-1992 Lincoln Town Car with factory air, and 1992 Mercury Grand Marquis, making it a direct-fit option for owners searching for a 7-rib serpentine belt for these applications. The belt’s EPDM compound and aramid reinforcement support stable operation in accessory drive systems, while the K-section profile and OE-style dimensions help maintain proper belt tracking and fitment.
Common Problems This Belt Can Address
- Squealing or chirping from a worn accessory drive belt
- Cracking, glazing, or fraying on the existing serpentine belt
- Loss of proper belt tension or tracking on the drive system
- Accessory drive noise caused by belt wear
- Replacement needs for factory-air-equipped Town Car applications
Installation Notes and Tips
Verify belt routing, rib count, and effective length before installation. Inspect pulleys, tensioner operation, and accessory alignment at the same time, since worn components can shorten belt life. Confirm the vehicle application by year, make, model, and main drive configuration before ordering.
Quality Assurance
This Dayco serpentine belt is manufactured to SAE J1459 and SAE J2432 standards for accessory drive belt performance. It is a direct replacement part for the listed Ford, Lincoln, and Mercury applications, including 1991-1992 Ford Crown Victoria, 1991-1992 Lincoln Town Car, and 1992 Mercury Grand Marquis.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1992 | Ford | Crown Victoria | Main Drive | 86 In. Belt |
| 1992 | Lincoln | Town Car | Main Drive | 7 Rib Belt, w/Factory Air |
| 1992 | Mercury | Grand Marquis | Main Drive | 86 In. Belt |
| 1991 | Lincoln | Town Car | Main Drive | Serpentine Belt for vehicles with Factory Air |
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