Caliso 425K6 Serpentine Belt Poly-V K-Section - 6-Rib 42.5

The Caliso 425K6 is a 6-rib Poly-V serpentine belt (also known as a Micro-V or Multi-rib belt) built to K-section industry standards. Designed as a direct OEM-equivalent replacement, this belt delivers reliable power transmission for engine-driven accessories including the alternator, power steering pump, air conditioning compressor, and water pump.

Key Specifications:

• Belt Type: Poly-V / Micro-V (K-Section, 3.56mm rib pitch)
• Number of Ribs: 6
• Outside Circumference: 43-1/4" (1099mm)
• Pitch Length: 42-1/2" (1080mm)
• Belt Width: 0.84" (21.3mm)
• Cross-Reference Part Numbers: 6PK1080, 425K6, MCRV13475

Construction & Performance:

• Single, endless belt design with longitudinal V-shaped ribs for precise sheave engagement
• Combines the flexibility of a flat belt with the gripping traction of multiple V-belts
• Engineered for quiet, vibration-free operation at OEM performance levels
• Resistant to heat, oil, and wear for extended service life

The 425K6 is a widely cross-referenced belt number used by multiple manufacturers including Dayco, Bando, Gates, and Goodyear, making the Caliso 425K6 a proven, interchangeable replacement option for a broad range of automotive applications.