Dayco 5100733 Serpentine Belt - Fan To Alternator

Dayco 5100733 Serpentine Belt Overview

The Dayco 5100733 serpentine belt is a K-section accessory drive belt built with EPDM and aramid reinforcement for dependable belt drive performance. It measures 1.38 inches wide with 10 ribs, making it a direct-fit style replacement for applications that call for this exact belt profile.

Use this belt when servicing the accessory drive system on Volvo, Mack, or Navistar vehicles that specify Dayco 5100733 or an equivalent cross-reference part number.

Key Features

• Part number: 5100733
• EPDM construction with aramid reinforcement for added strength
• 10-rib K-section design with straight rib profile
• Top width: 1.38 inches
• Effective length: 73.25 inches; outside circumference: 73.91 inches
• Black finish
• Operating temperature range: -45°F to 212°F
• Built to SAE J1459 and SAE J2432 standards

Detailed Description

Dayco 5100733 is a serpentine belt for accessory drive belt system service where the original belt uses a 10-rib K-section layout. The EPDM rubber compound is paired with aramid reinforcement to support stable belt tracking and consistent power transfer across pulleys. This part number is commonly referenced for Volvo 20883512, Mack 88GB447-P732, and Navistar 1847677C1 applications, and it also cross-references Goodyear 4100732 and Dynacraft D1102-9832 for the same application. If you are searching for a Dayco 5100733 serpentine belt for Volvo or Mack truck belt replacement, verify the rib count, width, and length against the original belt before ordering.

What This Belt Helps Address

• Squealing from a worn or glazed accessory drive belt
• Cracking, fraying, or rib wear on the existing belt
• Loss of belt tension or inconsistent pulley engagement
• Accessory drive noise during engine operation
• Replacement needs for a belt matching the original 10-rib K-section specification

Installation Notes and Tips

Confirm the belt routing, rib count, top width, and effective length before installation. Inspect pulleys, tensioners, and idlers for wear or misalignment, since those conditions can shorten belt life. For fitment-based searches, this part is commonly referenced for Volvo, Mack, and Navistar belt replacement applications, including Volvo 20883512 and Mack 88GB447-P732 cross-reference needs.

Quality Assurance

This Dayco serpentine belt is manufactured to SAE J1459 and SAE J2432 standards. Its EPDM and aramid-reinforced construction is specified for a wide operating temperature range, from -45°F to 212°F, to support demanding accessory drive service.