Caliso 385K4 Poly V Serpentine Belt K-Section OC - 4-Rib 39.25in

The Caliso 385K4 is a K-Section Micro Rib Poly V serpentine belt featuring 4 ribs and a 39.25-inch outside circumference. Also known as a Poly V belt or multi-rib belt, it is a direct OEM-equivalent replacement designed for use in automotive, small engine, and industrial power transmission applications.

Key Specifications:

• Belt Section: K (Micro Rib / Poly V)
• Number of Ribs: 4
• Outside Circumference: 39.25 in (996.95 mm)
• Pitch Length: 38.5 in (978 mm)
• Top Width: 0.56 in (14.22 mm)
• Belt Depth: 0.17 in (4.32 mm)
• OEM Part Number: 385K4

Key Features:

• Constructed with heat and ozone resistant EPDM rubber for long service life
• Reinforced rib stock with fiber added to reduce noise from worn or misaligned pulleys
• Treated polyester tensile cord minimizes belt stretch under load
• Engineered to meet or exceed USA RMA published rating levels
• Designed for high-speed and high drive ratio applications

The 385K4 Poly V belt delivers reliable, long-lasting performance in demanding drive systems, making it a trusted choice for both OEM replacement and aftermarket applications.