A-Premium Serpentine Belt 6-Rib 39.69 in (K-Series) — EPDM, Polyester Cord, Alternator Fit for Hyundai & Kia

The A-Premium 6-rib serpentine belt is a direct-fit replacement belt (39.69 in effective length) engineered to restore accessory drive performance on compatible Hyundai and Kia gas engines.

This replacement serpentine belt from A-Premium is built with EPDM rubber and polyester cords to match OE cross-section K specification and fitment references like 252122GGA1. It is sized for applications that use a 6-rib K-series belt and is intended for alternator locations on select Hyundai Sonata, Santa Fe, Tucson and Kia Optima, Sorento, and Sportage models. The design focuses on durability, heat and oil resistance, accurate tensioning, and reduced noise and vibration when installed correctly.

Which vehicles does this A-Premium belt fit?

This belt fits many Hyundai and Kia 4-cylinder gas models when used at the alternator location. Fitment covers model years and engine sizes listed by A-Premium; always cross-check with your OEM part numbers before purchase.

• Hyundai Sonata: 2015–2019 L4 2.0L & 2.4L (alternator)
• Hyundai Santa Fe / Santa Fe Sport: 2016–2020 L4 2.0L & 2.4L (select years/locations)
• Hyundai Tucson: 2018–2021 L4 2.4L (alternator)
• Kia Optima, Sorento, Sportage: select 2016–2022 L4 2.0L and 2.4L alternator applications

What are the critical specifications and materials?

The belt follows the K cross-section standard with six ribs and polyester cord reinforcement. Its EPDM compound resists cracking, oil and environmental contaminants better than older rubber compounds, which helps longevity under engine heat and load.

• Effective length: 39.69 inches; outside circumference: 40.25 inches
• Rib quantity: 6; top width: 0.807 in; cross-section: K
• Cord material: polyester; belt material: EPDM
• Reference numbers include K060396A, 252122GGA1, 5750T2 and OEM cross-refs

How does this belt help performance and reliability?

A-Premium designs this serpentine belt to hold stable tension, minimize vibration, and run quietly when the accessory drive system is in good condition. The EPDM compound and precision dimensions reduce wear and extend service life compared with older belts, but correct installation and tensioner condition are essential.

• Improved resistance to oil, heat, and cracking for longer life
• Precision rib profile for correct pulley engagement and less noise
• Polyester cords for consistent strength and reduced stretch
• Tool-free-fit guidance when belt path and tensioner are verified

Any installation tips or maintenance notes?

Before fitting the belt, inspect the tensioner, idlers, and pulleys for wear, roughness, or play—these components greatly affect belt life. Replace worn tensioners or pulleys to avoid rapid belt wear, misalignment, or squeal after installation.

• Verify OEM reference numbers and belt routing diagram for your model
• Check pulleys and tensioner for smooth rotation and correct tension
• Replace any frayed or glazed components prior to belt installation
• After installation, run the engine and re-check alignment and noise

Who is this for? If you own a compatible Hyundai or Kia gas-powered 4-cylinder vehicle and need a reliable alternator-location serpentine belt, this A-Premium 6-rib replacement offers an OEM-sized EPDM option built for longer life and lower noise. It’s aimed at DIYers, independent shops, and fleet managers who want a direct-fit, cost-effective replacement that matches common OEM cross references. Always confirm model-year fit and inspect accessory drive components before installing to achieve the promised performance and durability.