Caliso 500K7 Micro-Rib Poly V-Belt K-Section 7-Rib Serpentine Belt

The Caliso 500K7 is a K-section Micro-Rib Poly V serpentine belt featuring 7 ribs and a 50.75-inch outside circumference. Designed as a direct OEM-replacement belt, it delivers reliable power transmission across a wide range of automotive, powersports, and light industrial applications.

Key Specifications:

• Part Number: 500K7
• Belt Type: Micro-Rib Poly V (K-Section)
• Number of Ribs: 7
• Outside Circumference: 50.75 in (1,289.05 mm)
• Top Width: 0.98 in (24.89 mm)
• Belt Depth: 0.17 in (4.32 mm)

Key Features:

• Manufactured to meet or exceed USA RMA published ratings for K-section poly V belts
• Constructed from abrasion-resistant and heat-resistant material for long service life
• Multi-rib design ensures even load distribution and consistent speed ratios
• Compact profile requires less drive space compared to traditional V-belt configurations
• Maintains proper tracking without the need for special guides, flanges, or deep grooves

The 500K7 serpentine belt is a widely cross-referenced part number compatible with pulleys and tensioner systems calling for a 7-rib K-section belt of this length. Also commonly referred to as a PK belt or ribbed belt, it is suitable for high-speed and high drive-ratio applications.