Dayco 5030365 Serpentine Belt - Power Steering

Dayco 5030365 Serpentine Belt Overview

The Dayco 5030365 serpentine belt is a K-section, 3-rib accessory drive belt built for power steering applications on select Nissan and INFINITI vehicles. It uses EPDM rubber with aramid reinforcement to support stable operation across a wide temperature range.

Compatible With 1990-1996 Nissan 300ZX, power steering, and select INFINITI J30 and Q45 power steering applications. This Dayco 5030365 belt is sized for direct replacement use where the original belt follows the same 3-rib K-section profile.

Key Features

• EPDM construction with aramid reinforcement for durability in accessory drive service
• 3-rib, straight-rib K-section profile
• Black finish
• Effective length: 36.50 in. (927.10 mm)
• Outside circumference: 37.16 in. (943.87 mm)
• Top width: 0.40 in.
• Operating temperature range: -45°F to 212°F
• Built to SAE J1459 and SAE J2432 standards

Detailed Description

Dayco 5030365 is a serpentine belt for accessory drive systems that require a 3-rib K-section belt with a 36.50-inch effective length. The EPDM compound is paired with aramid reinforcement to help maintain belt integrity under heat, cold, and continuous accessory loading. For fitment-specific searches, this part is commonly referenced for Nissan 300ZX power steering service and INFINITI J30 and Q45 power steering applications. The Dayco 5030365 part number is also cross-referenced to Gates K030365 for the same application.

Common Issues This Belt Can Address

• Squealing from a worn or glazed power steering belt
• Cracking, fraying, or rib wear on the original belt
• Loss of proper belt tension due to age-related stretch
• Accessory drive noise caused by an incorrect belt profile or length
• Reduced steering assist from a slipping power steering drive belt

Installation Notes and Tips

Verify the belt profile, rib count, and measured length against the original belt before installation. Confirm the routing on the accessory drive system and inspect pulleys, tensioners, and alignment for wear or contamination that could shorten belt life. This part is listed for power steering positions only on the vehicles shown in the fitment data.

Quality Assurance

Dayco manufactures accessory drive components to meet SAE J1459 and SAE J2432 standards. The 5030365 belt is specified with EPDM and aramid reinforcement for consistent service in demanding underhood temperatures.