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Dayco 5030440 Serpentine Belt - Water Pump To Air Conditioning
| Brand | Dayco 5030440 |
|---|---|
| Position | Water Pump To Air Conditioning |
| Color | Black |
| Cross Section | K-Section |
| Effective Length | 44.09 |
| Effective Length | 1119.89 |
| Material | EPDM, Aramid Reinforced |
| Maximum Operating Temperature | 100 |
| Maximum Operating Temperature | 212 |
| Minimum Operating Temperature | -45 |
| Minimum Operating Temperature | -42.7 |
| Outside Circumference | 44.75 |
| Outside Circumference | 1136.65 |
| Rib Depth | Standard |
| Rib Profile | Straight Rib |
| Rib Quantity | 3 |
| Standards | SAE J1459, SAE J2432 |
| Top Width | .40 |
| Fits | Toyota · 3 vehicles |
EPDM, aramid reinforced. Built for durable, dependable accessory drive performance.
Straight-rib design. Delivers consistent grip and smooth power transfer.
SAE J1459, SAE J2432. Meets recognized industry standards for belt construction.
Cross-references ACDelco 3K441, Bando 3PK1120 and CARQUEST K030441 for the same application. See all 10.
Dayco 5030440 Serpentine Belt for Prius
The Dayco 5030440 serpentine belt is built for accessory drive service on select Toyota Prius models. It uses EPDM rubber with aramid reinforcement for stable operation, consistent rib tracking, and durability in demanding underhood temperatures.
Compatible with 2001-2003 Toyota Prius, Water Pump To Air Conditioning, this belt is sized for the specified accessory drive path and supports reliable power transfer across the belt system.
Key Features
- EPDM, aramid reinforced construction for wear resistance and belt stability
- 3-rib K-section profile with straight rib design
- Black finish with standard rib depth
- Effective length: 1119.89 mm (44.09 in.)
- Outside circumference: 1136.65 mm (44.75 in.)
- Top width: 0.40 in.
- Operating temperature range: -45°F to 212°F
- Built to SAE J1459 and SAE J2432 standards
Detailed Description
Dayco 5030440 is a serpentine belt engineered for the accessory drive belt system on the Toyota Prius. The EPDM compound helps maintain flexibility and resistance to heat cycling, while aramid reinforcement adds tensile strength for consistent performance under load. With a 3-rib K-section profile and straight rib construction, this belt is specified for the Water Pump To Air Conditioning application on 2001-2003 Toyota Prius models. This part cross-references Gates K030441 and Toyota 99363-31120 for the same application.
Common Issues 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 during engine operation
- Reduced belt performance in heat-cycled conditions
Installation Notes and Tips
Verify belt routing against the vehicle’s accessory drive layout before installation. Confirm the belt matches the Water Pump To Air Conditioning position on 2001-2003 Toyota Prius models and inspect pulleys, tensioner operation, and belt alignment at the same time. Proper pulley condition helps the new belt seat correctly and maintain even rib contact.
Quality Assurance
Dayco manufactures accessory drive components to meet SAE J1459 and SAE J2432 standards, supporting consistent fit and material performance for service replacement use.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2003 | Toyota | Prius | Water Pump To Air Conditioning | — |
| 2002 | Toyota | Prius | Water Pump To Air Conditioning | — |
| 2001 | Toyota | Prius | Water Pump To Air Conditioning | — |
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