Caliso 405K5 Poly V Serpentine Belt K-Section - 5-Rib 40.5in

The Caliso 405K5 is a K-section Poly V serpentine belt (also known as a micro-rib belt) designed as a direct-fit replacement for accessory drive systems. Built to meet or exceed OEM specifications, this belt delivers reliable power transfer to engine accessories including alternators, power steering pumps, and air conditioning compressors.

Key Specifications:

• Belt Type: K-Section Poly V / Micro-Rib Serpentine Belt
• Number of Ribs: 5
• Pitch Length: 40.5 inches (1,028 mm)
• Outside Length: 41.13 inches
• Thickness: 0.18 inches
• Metric Code: 5PK1029
• Material: Polyester cord reinforcement with rubber compound
• Color: Black

Key Features:

• Multi-rib design provides superior belt-to-pulley contact and power transfer efficiency
• Polyester cord construction resists stretch and maintains dimensional stability
• Engineered to handle the load-carrying demands of modern accessory drive systems
• Quiet operation under normal and high-temperature conditions
• Direct replacement for OEM and major aftermarket belt part numbers

Cross-Reference Part Numbers: K050405, 5050405, 5PK1028, 5PK1029, Dayco 5040524, Gates K0405254, Napa 25-K0405254, Goodyear 4040524, Bando 4PK1320

The 405K5 serpentine belt is a widely used accessory drive belt covering a broad range of automotive applications. Replace at the first signs of cracking, fraying, glazing, or rib wear to avoid unexpected accessory failure.