Caliso 405K4 K-Series Poly V Serpentine Belt 4-Rib 40.5" Pitch

The Caliso 405K4 is a K-Series Poly V serpentine belt (also known as a Micro-V or Micro-Rib belt) engineered as a direct OEM-style replacement for a wide range of passenger car and light truck applications. Built to meet or exceed original equipment specifications, this belt delivers reliable power transfer to engine-driven accessories including the alternator, power steering pump, water pump, and air conditioning compressor.

Key Specifications:

• Belt Type: K-Section Poly V / Serpentine (Micro-V)
• Number of Ribs: 4
• Pitch Length: 40.5 in (1,029 mm)
• Outside Circumference: 41.25 in (1,048 mm)
• Belt Width: 0.56 in (14.20 mm)

Cross-Reference Part Numbers:

• Dayco: 5040405
• Gates: K040405
• Goodyear: 4040405
• NAPA: 25-040405
• Bando: 4PK1028
• ACDelco: 4K405
• Motorcraft: JK4-412

The 405K4 serpentine belt features a precision-molded rib profile for smooth, quiet operation and reduced vibration. Its construction is designed to resist heat, oil, and ozone degradation for long service life in demanding engine bay environments.