Driveworks 345K4 Serpentine Belt 34.5" 4-Rib Poly Rib Drive Belt

The Driveworks 345K4 is a 4-rib poly rib serpentine belt measuring 34.5 inches in length, engineered to meet the demanding requirements of modern automotive accessory drive systems. This belt delivers reliable power transmission to engine accessories such as the alternator, water pump, power steering pump, and air conditioning compressor.

Designed for superior belt-to-pulley contact, the 345K4 uses a specialized high-temperature polymer rubber compound that maximizes load-carrying capacity and extends belt service life. Heat and ozone resistant EPDM rubber construction ensures durability under extreme underhood conditions.

Key Features:

• 4-Rib Poly V (K-Series) profile — 34.5" effective length
• Heat and ozone resistant EPDM rubber construction
• Fiber-reinforced rib stock reduces noise from worn or misaligned pulleys
• Treated polyester cord minimizes belt stretch for consistent tension
• High-temperature polymer compound maximizes load capacity and belt life
• Engineered to meet stringent OEM drive system requirements

Cross-Reference Part Numbers: Dayco 5040345, Gates K040345, Goodyear 4040345, Bando 4PK0876, CARQUEST K040345, Motorcraft JK4-342, Nissan 11720-59S, Mazda B3C7-18-381

The Driveworks 345K4 serpentine belt is a quality aftermarket replacement that provides long-lasting, dependable performance for a wide range of passenger car and light truck applications.