Caliso 665K5 Poly V Serpentine Belt K-Section - 5-Rib 66.5in

The Caliso 665K5 is a K-section Poly V (Multi-Rib) serpentine belt featuring 5 ribs and an outside circumference of 67.25 inches. This drive belt is engineered to deliver reliable power transmission across a vehicle's accessory drive system, including the alternator, power steering pump, air conditioning compressor, and water pump.

Key Features:

• Belt Type: K-Section Poly V / Multi-Rib Serpentine Belt
• Number of Ribs: 5
• Outside Circumference: 67.25 in (1,708 mm)
• Rib Width: 0.14 in per rib
• Constructed from abrasion and heat-resistant compound for long service life
• Meets or exceeds RMA, SAE J1459, SAE J2432, and SAE J1596 specifications
• Designed for high-speed and high drive-ratio applications
• Cross-references with Dayco 665K5 / 5050665, Gates K050665, ACDelco 5K665, Continental 4050665, Carquest K050665, Bando 5PK1690, and GM OEM part numbers 55587929 / 21008370

The 665K5 serpentine belt is a direct OEM-equivalent replacement built to restore proper accessory drive function. Its multi-rib K-section profile ensures smooth, quiet operation and consistent grip across all driven pulleys.