Caliso 315K4 Poly V Serpentine Belt K-Section - 4-Rib 31.5

The Caliso 315K4 is a K-section Poly V serpentine belt (also known as a micro-rib or multi-rib belt) designed as a direct OEM-equivalent replacement for automotive accessory drive systems. With 4 ribs and a 31.5-inch pitch length (32.25-inch outside circumference), this belt delivers reliable power transfer to alternators, air conditioning compressors, power steering pumps, and other engine-driven accessories.

Key Specifications:

• Belt Type: K-Section Poly V / Micro-Rib Serpentine Belt
• Rib Count: 4 ribs
• Pitch Length: 31.5 inches (800 mm)
• Outside Circumference: 32.25 inches (819 mm)
• Belt Width: 0.56 inches (14.20 mm)
• Industry Part Number: 315K4 / 4PK800

Key Features:

• Constructed with heat and ozone resistant EPDM rubber compound for extended service life
• Fiber-reinforced rib stock reduces noise from worn or misaligned pulleys and improves belt stability
• Meets SAE J1459, SAE J2432, and SAE J1596 industry standards
• Engineered to match OEM form, fit, and function for a direct drop-in replacement

Cross-Reference Part Numbers: Gates K040315, Dayco 5040315, Goodyear 4040315, Bando 4PK0800, Napa 25-040315

The Caliso 315K4 serpentine belt is a proven replacement belt built to handle the demanding requirements of modern automotive accessory drive systems, providing quiet, long-lasting performance.