A-Premium Serpentine Belt 6-Rib 87.57 in — K-Section EPDM with Polyester Cords for Durable, Low-Noise Operation

The A-Premium serpentine belt 6-rib 87.57 in is a high-durability replacement drive belt engineered from EPDM rubber with polyester cords for stable tension, reduced noise, and resistance to oils and cracks.

This 6-rib serpentine belt from A-Premium measures an effective length of 87.57 inches and an outside circumference of 88.135 inches, built to fit a range of passenger and light-truck engines. Designed with a K cross-section and premium materials, it’s intended as a one-for-one replacement for a variety of vehicles where an 87.57-inch belt is specified. The belt balances flexibility and tensile strength to drive accessories like alternators, power steering pumps, A/C compressors, and water pumps while minimizing vibration and wear.

Which vehicles will accept this 87.57-inch, 6-rib A-Premium belt?

This belt fits selected Chevrolet, GMC, Jeep, Mercedes-Benz, Mitsubishi, and other models that require a 6-rib K-section belt with the stated length. Always verify the OEM reference number or the belt length on your current belt before purchase to ensure compatibility.

• Chevrolet P30 1996 V8 5.7L (without A/C; with 124A alternator)
• GMC P3500 1996 V8 5.7L (without A/C; with 124A alternator)
• Jeep Wrangler JK series 2012–2018
• Mercedes-Benz W202 C280 (1994–1995, Engine No. 034967+), plus select W163/W164 models and GLK/ GLE variants
• Mitsubishi Raider 2006–2007

What are the material and dimension specifications of this belt?

The A-Premium serpentine belt uses EPDM rubber for long-term resistance to heat, ozone and automotive fluids, combined with polyester cords for consistent tensile strength. Dimensions are engineered to K-section standards for correct pulley contact and tensioner alignment.

• Effective length: 87.57 in; outside circumference: 88.135 in
• Rib count: 6; top width: 0.807 in
• Material: EPDM rubber; cord material: polyester
• Cross section designation: K; reference numbers include K060876 and others

How does this belt improve durability and noise control compared to economy belts?

EPDM construction resists cracking, abrasion, and chemical attack better than older rubber formulations, while polyester cords hold tension across temperature cycles. The combined design reduces belt slippage, vibration, and squeal when installed with a properly functioning tensioner and aligned pulleys.

• EPDM resists oils, ozone and high temperatures for longer service life
• Precision dimensions promote even rib contact and lower vibration
• Polyester cords maintain consistent tension under load
• Engineered to minimize noise when pulleys and tensioner are in good condition

What should I check before fitting this serpentine belt?

Inspect the belt routing, confirm the required length and rib count, and examine the tensioner and pulleys for wear. Replacing an old belt without checking associated components can shorten the new belt’s life or cause abnormal noise and misalignment.

• Verify belt length (87.57 in effective) and 6-rib profile against the old belt or OEM spec
• Check tensioner and idler pulleys for smooth rotation and play
• Inspect accessory pulleys for damage, grooves, or wobble
• Follow the vehicle-specific routing diagram during installation

Who this is for: This A-Premium 6-rib, 87.57-inch serpentine belt is aimed at DIY mechanics, fleet maintenance teams, and professional technicians who need a reliable replacement belt for compatible Chevrolet, GMC, Jeep, Mercedes-Benz, and Mitsubishi models. It’s suitable for vehicles where improved resistance to heat, oils, and cracking is desired and where longevity, quiet operation, and precise fitment matter. If you plan to extend belt life, replace or inspect tensioners and pulleys at the same time.

A-Premium backs this serpentine belt with a one-year, unlimited-mileage guarantee and supplies a range of replacement automotive accessories to support safe, long-term operation.