Ajusa PK050644 Serpentine Belt 5-Rib 644mm Poly V-Ribbed Belt

The Ajusa PK050644 is a 5-rib poly V-ribbed serpentine belt engineered to OEM replacement standards. Identified by the industry-standard PK designation, this belt features 5 ribs (K section) and an effective length of 644mm (approximately 25.4 inches), making it a direct-fit replacement for the applications it serves.

Serpentine belts are a critical engine accessory drive component, transferring power from the crankshaft pulley to engine accessories including the alternator, power steering pump, air conditioning compressor, and water pump. A worn or failed belt can result in loss of charging, cooling, or power steering function.

Key Features:

• PK Industry Standard Size: 5-rib (5PK) profile with 644mm effective length
• Poly V-Ribbed Construction: Engineered rubber compound provides flexibility, grip, and resistance to heat, oil, and abrasion
• OEM-Quality Replacement: Manufactured to match original equipment specifications for proper fit and function
• Quiet Operation: Precision-molded ribs minimize noise and vibration during operation
• Cross-references with equivalent belts in the K050644 / 5PK644 size family

Replace your serpentine belt at the first signs of cracking, fraying, glazing, or squealing to prevent unexpected breakdowns. The Ajusa PK050644 delivers reliable performance as a quality aftermarket replacement.