A-Premium Serpentine Belt 6-Rib 77.25 in — EPDM K-section with polyester cord reinforcement

This serpentine belt is built to match original-equipment dimensions and withstand modern under-hood conditions. Made from EPDM rubber with polyester cord reinforcement and a K-section cross profile, it targets precise tensioning, quiet operation, and resistance to oils, cracks, and contaminants. It fits a variety of late-model vehicles — from select Subaru and Cadillac models to school buses and classic Ford platforms — so verify fitment before ordering.

Will this belt fit my vehicle?

Fitment depends on your engine, model year, and accessory configuration (for example, whether the vehicle has air conditioning). The A-Premium belt covers specific applications listed by make and year. Always compare the belt length, rib count, and reference numbers to your OEM belt before purchase.

• Effective length: 77.25 inches; outside circumference: 77.815 inches
• 6 ribs with K cross-section and 0.807-inch top width
• Reference numbers include K060772, 6PK1965, 23780AA130, 4918084A80 and more
• Compatible examples: Subaru Forester (2014–2018 2.5L), Cadillac ATS (2013–2015 3.6L), Blue Bird Vision bus (2009–2010 6.7L)

How does the A-Premium belt resist wear and damage?

This belt uses EPDM compound and polyester cords to improve longevity under heat and chemical exposure. EPDM provides strong resistance to cracking, ozone, and common engine fluids, while the cord material preserves dimensional stability and tension retention.

• EPDM construction for enhanced temperature and chemical resistance
• Polyester cords for consistent tension and reduced stretch
• Precision molding to control alignment and reduce vibration
• Designed to limit noise and extend service intervals

What should I check before installation?

Inspect the accessory drive system to prevent premature belt failure. A worn tensioner, misaligned pulley, or damaged idler will shorten belt life, so replace or service those components when needed.

• Verify pulley alignment and free spin on idlers
• Check and, if necessary, replace the belt tensioner and pulleys
• Confirm proper belt routing and mock-fit for correct tension
• Reference vehicle-specific diagrams or OEM manuals for routing

Is there a warranty or guarantee?

A-Premium supports this serpentine belt with a one-year unlimited-mileage guarantee, offering coverage against manufacturing defects. Keep your receipt and product information to expedite any warranty inquiries.

• One-year unlimited-mileage workmanship guarantee
• Support across a wide range of automotive replacement categories
• Contact A-Premium customer service for warranty steps

Who is this for: This 6-rib, 77.25-inch A-Premium serpentine belt is for DIY mechanics, independent repair shops, and fleet managers replacing worn drive belts on compatible vehicles. Choose this belt if you need an OE-dimension replacement with EPDM durability and clear cross-reference numbers; if your system shows wear, or you’re refreshing pulleys and tensioners, this belt is engineered to match precise fitment and restore quiet, reliable accessory operation.