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Dayco 5050402 Serpentine Belt - Air Conditioning or Alternator and Tensioner
| Brand | Dayco 5050402 |
|---|---|
| Position | Air Conditioning, Alternator and Tensioner |
| Color | Black |
| Cross Section | K-Section |
| Effective Length | 40.16 |
| Effective Length | 1020.07 |
| Material | EPDM, Aramid Reinforced |
| Maximum Operating Temperature | 100 |
| Maximum Operating Temperature | 212 |
| Minimum Operating Temperature | -45 |
| Minimum Operating Temperature | -42.7 |
| Outside Circumference | 40.72 |
| Outside Circumference | 1034.29 |
| Rib Depth | Standard |
| Rib Profile | Straight Rib |
| Rib Quantity | 5 |
| Standards | SAE J1459, SAE J2432 |
| Top Width | .68 |
| Fits | Chevrolet, Pontiac, and Saturn · 14 vehicles |
EPDM, aramid reinforced. Built for durable, dependable belt performance.
Straight rib profile. Helps maintain smooth, efficient power transfer.
SAE J1459, SAE J2432. Meets recognized industry standards for belt construction.
Cross-references ACDelco 5K402, CARQUEST K050402 and Driveworks 402K5 for the same application. See all 8.
Dayco 5050402 Serpentine Belt Overview
The Dayco 5050402 serpentine belt is built for accessory drive applications that power the air conditioning, alternator, and tensioner on select Chevrolet Malibu, Pontiac G6, and Saturn Aura models. This black EPDM belt uses aramid reinforcement for added strength and stable operation across a wide temperature range.
With a 5-rib K-section design and straight rib profile, the Dayco 5050402 is sized for consistent belt tracking and dependable accessory drive performance. It is a direct-fit serpentine belt for 2007-2012 Chevrolet Malibu, 2008-2010 Pontiac G6, and 2008-2009 Saturn Aura applications listed below.
Key Features
- EPDM construction with aramid reinforcement for durability
- 5-rib K-section serpentine belt design
- Black finish with straight rib profile
- Effective length: 1020.07 mm (40.16 in.)
- Outside circumference: 1034.29 mm (40.72 in.)
- Top width: 0.68 in.
- Operating temperature range: -45°F to 212°F
- Built to SAE J1459 and SAE J2432 standards
Detailed Description
Dayco 5050402 is a replacement serpentine belt for accessory drive systems that route power to the air conditioning compressor, alternator, and belt tensioner. Its EPDM rubber compound is paired with aramid reinforcement to support long-term belt stability, while the straight rib profile helps maintain smooth engagement with the pulley system. This part number is also referenced by cross numbers such as Gates K050402 and ACDelco 5K402 for the same application.
Fits 2007-2012 Chevrolet Malibu, Air Conditioning, Alternator and Tensioner. Fits 2008-2010 Pontiac G6, Air Conditioning, Alternator and Tensioner. Fits 2008-2009 Saturn Aura, Air Conditioning, Alternator and Tensioner. Fits 2007 Pontiac G6, Air Conditioning, Alternator and Tensioner, 2nd Design; 7 Bolts. The Dayco 5050402 is a practical match when replacing a worn serpentine belt on these vehicles.
What This Belt Helps Address
- Squealing or chirping from a worn accessory drive belt
- Cracking, glazing, or rib wear on the existing belt
- Loss of consistent drive to the alternator or A/C compressor
- Belt tracking issues caused by age-related stretch or wear
- Reduced tension stability in the accessory drive system
Installation Notes and Tips
Verify belt routing against the vehicle’s accessory drive diagram before installation. Inspect pulleys, tensioner operation, and pulley alignment at the same time, since worn components can shorten belt life. Confirm the application details for your Chevrolet Malibu, Pontiac G6, or Saturn Aura, including the 2007 Pontiac G6 2nd design with 7 bolts, before ordering.
Quality Assurance
This Dayco serpentine belt is manufactured to SAE J1459 and SAE J2432 standards for accessory drive belt applications. Dayco 5050402 is engineered for the specified fitments and operating conditions listed above.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2012 | Chevrolet | Malibu | 2.4L | L4 | — | Air Conditioning, Alternator and Tensioner | — |
| 2011 | Chevrolet | Malibu | 2.4L | L4 | — | Air Conditioning, Alternator and Tensioner | — |
| 2010 | Chevrolet | Malibu | 2.4L | L4 | GAS | Air Conditioning, Alternator and Tensioner | — |
| 2010 | Chevrolet | Malibu | 2.4L | L4 | FLEX | Air Conditioning, Alternator and Tensioner | — |
| 2010 | Pontiac | G6 | 2.4L | L4 | — | Air Conditioning, Alternator and Tensioner | — |
| 2009 | Chevrolet | Malibu | 2.4L | L4 | GAS | Air Conditioning, Alternator and Tensioner | — |
| 2009 | Pontiac | G6 | 2.4L | L4 | — | Air Conditioning, Alternator and Tensioner | — |
| 2009 | Saturn | Aura | 2.4L | L4 | GAS | Air Conditioning, Alternator and Tensioner | — |
| 2008 | Chevrolet | Malibu | 2.2L | L4 | — | Air Conditioning, Alternator and Tensioner | — |
| 2008 | Chevrolet | Malibu | 2.4L | L4 | GAS | Air Conditioning, Alternator and Tensioner | — |
| 2008 | Pontiac | G6 | 2.4L | L4 | — | Air Conditioning, Alternator and Tensioner | — |
| 2008 | Saturn | Aura | 2.4L | L4 | GAS | Air Conditioning, Alternator and Tensioner | — |
| 2007 | Chevrolet | Malibu | 2.2L | L4 | — | Air Conditioning, Alternator and Tensioner | — |
| 2007 | Pontiac | G6 | 2.4L | L4 | — | Air Conditioning, Alternator and Tensioner | 2nd Design; 7 Bolts |
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