Caliso 355K4 Poly V Serpentine Belt 4-Rib 35.5in K-Section Micro Rib

The Caliso 355K4 is a K-section Poly V (serpentine) belt designed as a direct-fit replacement for automotive and light-duty accessory drive systems. Also known as a micro rib belt, this 4-rib design delivers smooth, efficient power transfer to accessories such as the power steering pump, air conditioning compressor, and alternator.

Key Specifications:

• Belt Type: K-Section Poly V / Micro Rib Serpentine Belt
• Number of Ribs: 4
• Pitch Length: 35.5 inches
• Outside Circumference: 36.25 inches
• Top Width: 0.56 inches
• Belt Depth: 0.17 inches
• Metric Code: 4PK901
• Construction: Polyester cord reinforced rubber compound

Cross-Reference Part Numbers:

• Gates K040355
• Dayco 5040355
• Napa 25-K040355
• Goodyear 4040355
• Bando 4PK900

The polyester cord tensile members provide excellent resistance to stretching and fatigue, while the rubber compound offers durability against heat and oil exposure common in engine bay environments. This belt is sold individually.