A-Premium Serpentine Belt 6-Rib 86.64 in K-Section EPDM — Durable, Low-Noise Replacement

The A-Premium Serpentine Belt 6-Rib 86.64 In is a K‑section, EPDM multi‑rib drive belt engineered to replace worn factory belts and restore accessory drive performance.

This heavy‑duty 6‑rib belt measures 86.64 inches effective length (87.370" outside circumference) and is built from EPDM rubber with polyester cords for long wear. Designed to match numerous domestic and import fitments, it suits V6 and some L4 engine accessory drives where OEM references such as K060866, 1340A150, and 53013864AA apply. The belt emphasizes durability, reduced noise and vibration, and straightforward installation when paired with a properly functioning tensioner.

Which vehicles commonly use this 86.64" 6‑rib serpentine belt?

This belt covers a range of models from several manufacturers; compatibility depends on engine and model year. It fits many Dodge, Ford, Jeep, Mazda, Mercury and Mitsubishi applications — always confirm with your VIN or vehicle selector before purchase.

• Dodge Nitro 2007–2011 V6 4.0L
• Ford Explorer (2000–2001, 2004–2005) and Ranger (2001–2011) V6 4.0L
• Jeep Commander 2006 and Grand Cherokee 2004–2006 (3.7L, 4.7L options)
• Mazda B4000 2001–2010 V6 4.0L and various Mitsubishi Lancer/Outlander/RVR L4 models

How does the A‑Premium belt resist wear and environment exposure?

Manufactured from EPDM rubber, this belt offers improved resistance to cracking, heat aging and exposure to oils and contaminants compared with older rubber compounds. Internal polyester cords maintain tensile strength and dimensional stability under load.

• EPDM compound for heat and ozone resistance
• Polyester cord for consistent tension and stretch control
• Precision cross‑section (K) and 6 ribs for stable pulley contact
• Engineered to reduce vibration and operational noise

What should I check before installing this replacement belt?

Proper installation depends on pulleys and the tensioning system being in good condition. Inspect the belt routing, tensioner, idlers and pulleys, and replace any worn components to prevent premature belt failure and to ensure correct tension and alignment.

• Verify vehicle compatibility using VIN or vehicle selector
• Inspect tensioner and idler bearings for smooth operation
• Check pulley grooves and alignment for wear or damage
• Follow factory routing diagram and torque specifications

What performance and warranty assurances come with this belt?

A‑Premium supplies this serpentine belt with a one‑year unlimited‑mileage guarantee covering manufacturing defects. The belt is built to industrial tolerances to provide stable accessory drive operation under normal driving conditions when installed correctly.

• One‑year unlimited‑mileage warranty against defects
• Manufactured to match common OEM reference numbers
• Designed for consistent tension, reduced noise and long service life

Who is this for: The A‑Premium 6‑rib 86.64" serpentine belt is intended for DIY mechanics, professional technicians and fleet maintenance personnel replacing worn or damaged belts on compatible Dodge, Ford, Jeep, Mazda, Mercury and Mitsubishi vehicles. Buy this belt if you need a direct-fit K‑section replacement built from modern EPDM materials for improved durability, but remember to confirm fitment with your vehicle details and to inspect tensioners and pulleys before installation.