Caliso 510K4 FVP Poly V Serpentine Belt K-Section Pitch - 4-Rib 51

The Caliso 510K4 is a K-section Poly V serpentine belt (also known as a multi-rib or micro-rib belt) engineered as a direct OEM-replacement drive belt. Featuring a 51.0-inch pitch length (approximately 51.75 inches outside circumference) and 4 ribs, this belt is precision-sized to restore proper tension and performance to the engine's accessory drive system.

Key Features:

• K-Section Poly V profile — 4-rib micro-rib construction for smooth, quiet operation
• EPDM compound — resists cracking, glazing, and wear for extended service life
• Polyester fiber tensile members — maintain consistent belt length under load
• Abrasion, oil, and chemical resistant — built to withstand harsh underhood environments
• Temperature stable from -30°F to 140°F — reliable performance in extreme conditions
• OEM replacement design — restores factory drive belt system function

The 510K4 Poly V belt drives critical engine accessories such as the alternator, power steering pump, water pump, and air conditioning compressor via a single continuous belt routed around multiple pulleys. Cross-reference part number: 510K4 (K040510 equivalent in alternate numbering formats).