Caliso 310K3 Poly V Serpentine Belt K-Section OC - 3-Rib 31.75in

The Caliso 310K3 is a 3-rib Poly V (K-section) serpentine belt engineered for reliable power transmission in automotive and light-duty accessory drive applications. With an outside circumference of 31.75 inches (806.45 mm) and a top width of 0.42 inches, this compact micro-rib belt is precision-sized to deliver consistent performance in demanding drive systems.

Key Features:

• Belt Type: Poly V / Micro Rib, K-Section (3/K)
• Outside Circumference: 31.75 in (806.45 mm)
• Pitch Length: 31.0 in
• Top Width: 0.42 in
• Belt Depth: 0.17 in (4.32 mm)
• Number of Ribs: 3
• Designed for high-speed and high drive-ratio applications
• Constructed from abrasion-resistant and heat-resistant materials for long service life
• Meets or exceeds USA RMA published ratings levels

Cross-Reference Part Numbers: Gates K040240, Dayco 5040240, Goodyear 4040240, NAPA 25-K040240, Bando 4PK605, ACDelco 3K310, Pirelli 310K3, Duralast 310K3, General Motors 12585310, Continental/ContiTech PK030309.

The 310K3 Poly V belt is a direct OEM-equivalent replacement, offering a dependable solution for maintaining proper tension and drive efficiency across accessory components such as alternators, power steering pumps, and air conditioning compressors.