Caliso 347K4 Poly-V Serpentine Belt K-Section - 4-Rib 34.7in

The Caliso 347K4 is a 4-rib Poly-V (K-section) serpentine belt engineered for reliable accessory drive performance. With an outside circumference of 35.45 inches (900 mm) and a standard K-section rib profile, this belt is a direct-fit replacement for vehicles requiring a 347K4 / 4PK880 belt. Also sold under the FVP Poly V Belt designation, the 347K4 is a widely cross-referenced part number used by multiple manufacturers.

Key Features:

• 4-rib Poly-V K-section construction for smooth, efficient power transfer
• Outside circumference: 35.45 in (900.43 mm)
• EPDM compound construction for excellent abrasion, oil, and chemical resistance
• Polyester fiber tensile members for superior strength and stretch resistance
• Temperature-stable performance from -30°F to 140°F
• Straight ribbed belt design ensures high-speed, high drive-ratio capability
• Meets or exceeds SAE standards including SAE J1459, SAE J2432, and SAE J1596
• Cross-reference: 4PK880 (metric designation)

The 347K4 serpentine belt delivers consistent power to engine accessories such as the alternator, power steering pump, and water pump. Its durable compound construction is proven to withstand the heat and load demands of modern accessory drive systems.