Caliso 373K4S FVP Poly V Serpentine Belt K-Section Pitch - 4-Rib 37.3

The Caliso 373K4S is an FVP-branded K-section Poly V serpentine belt featuring a 4-rib configuration and a 37.3-inch pitch length (approximately 38.05-inch outside circumference). Designed as a direct OEM replacement, this belt restores proper operation of the vehicle's accessory drive belt system with a precise fit and reliable performance.

Key Features:

• Belt Type: K-Section Micro-Rib Poly V (Serpentine)
• Pitch Length: 37.3 inches
• Outside Circumference: Approximately 38.05 inches (966.47 mm)
• Number of Ribs: 4
• Construction: EPDM compound with polyester fiber tensile members for reduced stretch
• Straight ribbed belt design for maximum belt-to-pulley contact
• Abrasion, oil, and chemical resistant materials for long service life
• Temperature stable from -30°F to 140°F
• Meets or exceeds USA RMA published ratings levels

The "S" suffix in the part number designates a specialty or silenced construction variant within the FVP Poly V belt lineup. This belt is engineered for high-speed and high drive ratio accessory drive applications, delivering dependable, quiet operation over an extended service life.