Caliso 370K4 Poly V Serpentine Belt Pitch Length - 4-Rib 37

The Caliso 370K4 is a K-series Poly V serpentine belt designed for reliable accessory drive performance. With a 37-inch pitch length, 37.75-inch outside circumference, and 4 ribs, this belt delivers consistent power transmission to engine-driven accessories such as the alternator, power steering pump, and air conditioning compressor.

Key Features:

• Belt Type: Poly V / Micro V (K-Series)
• Number of Ribs: 4
• Pitch Length: 37.0 inches (940 mm)
• Outside Circumference: 37.75 inches (959 mm)
• Belt Width: 0.56 inches (14.20 mm)
• Thickness: 0.177 inches
• Constructed with heat and ozone resistant EPDM rubber for extended service life
• Fiber-reinforced rib stock reduces noise from worn or misaligned pulleys
• High-temperature polymer compound formulated to handle maximum load requirements
• Meets SAE standards for demanding automotive accessory drive applications

Cross-Reference Part Numbers: Gates K040370, Dayco 5040370, Bando 4PK940, Goodyear 4040370, NAPA 25-040370, ACDelco 4K370, Metric code 4PK940

The 370K4 serpentine belt is a direct-fit replacement engineered to meet or exceed OEM specifications, ensuring quiet, dependable operation throughout its service life.