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Dayco 5070680 Serpentine Belt - Main Drive
| Brand | Dayco 5070680 |
|---|---|
| Position | Main Drive |
| Color | Black |
| Cross Section | K-Section |
| Effective Length | 68.00 |
| Effective Length | 1727.20 |
| Material | EPDM, Aramid Reinforced |
| Maximum Operating Temperature | 100 |
| Maximum Operating Temperature | 212 |
| Minimum Operating Temperature | -45 |
| Minimum Operating Temperature | -42.7 |
| Outside Circumference | 68.66 |
| Outside Circumference | 1743.97 |
| Rib Depth | Standard |
| Rib Profile | Straight Rib |
| Rib Quantity | 7 |
| Standards | SAE J1459, SAE J2432 |
| Top Width | .96 |
| Fits | Acura · 15 vehicles |
EPDM, aramid reinforced. Built for durable, dependable power transfer.
Seven-rib design. Helps maintain strong grip and smooth operation.
SAE J1459, SAE J2432. Meets recognized standards for belt performance.
Cross-references ACDelco 7K680, Bando 7PK1730 and CARQUEST K070680 for the same application. See all 12.
Dayco 5070680 Serpentine Belt Overview
The Dayco 5070680 serpentine belt is a K-section accessory drive belt built for consistent power transfer in the engine accessory drive system. It uses EPDM with aramid reinforcement, a 7-rib design, and a straight rib profile to support stable operation across a wide temperature range.
Compatible with select Acura RDX, Acura TLX, and Acura RSX applications, this belt is a direct-fit option for vehicles that require a 68.00-inch effective length serpentine belt. Dayco 5070680 is built to SAE J1459 and SAE J2432 standards.
Key Features
- EPDM construction with aramid reinforcement for durability in accessory drive service
- 7-rib K-section profile for proper belt tracking
- 68.00-inch effective length and 68.66-inch outside circumference
- Straight rib design with standard rib depth
- Black finish
- Meets SAE J1459 and SAE J2432 standards
- Fits 2022-2026 Acura RDX, N/A
- Fits 2021-2025 Acura TLX, N/A
- Fits 2002-2006 Acura RSX, Main Drive
Detailed Description
Dayco 5070680 is a serpentine belt for the accessory drive belt system, engineered to maintain reliable engagement with pulleys in the engine drive path. The EPDM rubber compound is paired with aramid reinforcement to help the belt handle heat, flexing, and continuous operation. With a top width of .96 inch and a 7-rib configuration, it is sized for applications that call for a K-section belt with a 68.00-inch effective length.
This part number is commonly referenced for Acura RDX, Acura TLX, and Acura RSX fitments, making it a practical replacement choice when servicing the main drive or accessory drive system. This part cross-references Gates K070680 and Honda 38920-PND-004 for the same application.
Common Problems This Belt Can Address
- Squealing or chirping from a worn accessory drive belt
- Cracking, glazing, or rib wear on the existing belt
- Loss of proper belt tension or tracking
- Accessory drive noise caused by belt deterioration
- Reduced belt performance in high-heat engine environments
Installation Notes and Tips
Verify belt routing against the vehicle’s accessory drive diagram before installation. Confirm the required rib count, effective length, and K-section profile match the original belt specification for the Acura RDX, Acura TLX, or Acura RSX application. Inspect pulleys, tensioners, and idlers for wear before installing the new belt, since damaged components can shorten belt life and affect tracking.
Quality Assurance
Dayco manufactures this belt to SAE J1459 and SAE J2432 standards, supporting consistent fit and performance in the specified applications. The EPDM and aramid-reinforced construction is selected for durability in normal accessory drive service.
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2026 | Acura | RDX | — | — | — | N/A | — |
| 2025 | Acura | RDX | — | — | — | N/A | — |
| 2025 | Acura | TLX | — | 2.0L | L4 | N/A | — |
| 2024 | Acura | RDX | — | — | — | N/A | — |
| 2024 | Acura | TLX | — | 2.0L | L4 | N/A | — |
| 2023 | Acura | RDX | — | — | — | N/A | — |
| 2023 | Acura | TLX | — | 2.0L | L4 | N/A | — |
| 2022 | Acura | RDX | — | — | — | N/A | — |
| 2022 | Acura | TLX | — | 2.0L | L4 | N/A | — |
| 2021 | Acura | TLX | — | 2.0L | L4 | N/A | — |
| 2006 | Acura | RSX | Base | — | — | Main Drive | — |
| 2005 | Acura | RSX | Base | — | — | Main Drive | — |
| 2004 | Acura | RSX | Base | — | — | Main Drive | — |
| 2003 | Acura | RSX | Base | — | — | Main Drive | — |
| 2002 | Acura | RSX | Base | — | — | Main Drive | — |
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