Caliso 650K5 Poly V Serpentine Belt - 5-Rib 65 Inch

The Caliso 650K5 is a 5-rib Poly V serpentine belt (also known as a micro-rib or V-ribbed belt) designed as a direct OE-quality replacement for automotive accessory drive systems. With an effective length of approximately 65 inches (1,653 mm) and an outside circumference of 65.7 inches (1,669 mm), this belt is engineered for precise pulley engagement and reliable power transfer.

Key Features:

• 5-Rib (K5) Poly V design for smooth, efficient power transmission
• EPDM rubber construction resists heat, ozone, and cracking for extended service life
• Polyester tensile cord reinforcement minimizes stretch and maintains proper belt tension
• Precision-molded ribs and grooves ensure correct pulley alignment and reduce slippage
• Fiber-reinforced rib stock helps reduce noise from worn or misaligned pulleys
• Meets or exceeds OEM specifications for a reliable factory-quality fit

The 650K5 belt is a widely cross-referenced part number compatible with many leading brands. Cross-reference numbers include: Gates K050650, Dayco 5050650, ACDelco 5K650, Bando 5PK1650, ContiTech PK050650, Goodyear 4050650, NAPA 25-050650, GM 30021607, and others.

This serpentine belt drives critical engine accessories including the alternator, power steering pump, air conditioning compressor, and water pump. Replacing a worn or cracked belt promptly helps prevent accessory failure and keeps your vehicle operating at peak performance.