HomeBelts and Cooling > Accessory Drive Belt System ComponentsRoadmax 5K398AP Serpentine Belt - Alternator and Air Conditioning
Part #: 5K398AP

Roadmax 5K398AP Serpentine Belt - Alternator and Air Conditioning

Automotive V-Ribbed Belt (Standard), Alternator and Air Conditioning
⚙️ 7 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Automotive V-Ribbed Belt (Standard), Alternator and Air Conditioning
🚗Fitment: Mazda, 626 and Millenia
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Serpentine Belt for Mazda 626 and Millenia

The Roadmax 5K398AP Automotive V-Ribbed Belt (Standard) is designed to provide consistent performance for your Mazda 626 and Millenia models. Engineered with durable materials and precise dimensions, this serpentine belt ensures efficient accessory drive operation.

  • Constructed from EPDM material for enhanced durability and heat resistance
  • 5-rib design with a top width of 17 mm (.667 inches) for optimal grip and flexibility
  • Polyester cord material for strength and longevity
  • Cross section designation K, suitable for standard automotive applications
  • Effective length of 1013 mm (39.87 inches) and outside circumference of 1027 mm (40.43 inches)

About the Roadmax Automotive V-Ribbed Belt (Standard) Line

The Roadmax Automotive V-Ribbed Belt (Standard) product line focuses on delivering reliable serpentine belts that meet OEM specifications for various vehicle makes and models. This line emphasizes quality materials like EPDM rubber and polyester cords to maintain belt integrity under typical engine conditions. The 5K398AP part is a standard fitment within this line, tailored for specific Mazda vehicles requiring a 5-rib serpentine belt.

Product Details and Specifications

This serpentine belt features a 5-rib configuration with a top width of 17 mm (.667 inches), designed to fit accessory pulleys precisely. The EPDM rubber compound offers resistance to heat, ozone, and wear, extending belt life. Polyester cords embedded within the belt provide tensile strength and reduce stretch, maintaining proper tension during operation. The K cross section designation aligns with industry standards for automotive v-ribbed belts, ensuring compatibility with the accessory drive system of Mazda 626 and Millenia models. With an effective length of 1013 mm (39.87 inches) and an outside circumference of 1027 mm (40.43 inches), this belt matches the required dimensions for proper fit and function.

Compatible Applications and Common Issues Addressed

  • Replacement for worn or cracked serpentine belts on Mazda 626 and Millenia
  • Resolves belt slippage causing accessory noise or reduced performance
  • Prevents overheating by maintaining proper operation of cooling system components
  • Eliminates squealing sounds due to belt wear or misalignment
  • Restores power steering and alternator function affected by belt failure

Installation Notes and Tips

Ensure the engine is off and cool before beginning installation. Verify the belt routing matches the vehicle’s accessory drive diagram. Inspect pulleys and tensioners for wear or damage prior to installing the new belt. Use a proper tensioning tool to achieve manufacturer-recommended belt tension. After installation, start the engine and observe belt operation to confirm correct fit and alignment.

Quality Assurance and Warranty

The Roadmax 5K398AP serpentine belt is manufactured to meet industry standards for durability and performance. Made with EPDM rubber and reinforced polyester cords, it is engineered for consistent operation under normal driving conditions. While specific warranty details are not provided, Roadmax products typically adhere to quality control processes to ensure reliability in automotive applications.

BrandRoadmax
Part Number5K398AP
PositionAutomotive V-Ribbed Belt (Standard), Alternator and Air Conditioning
MaterialEpdm
Top Width.667
Top Width17
Cord MaterialPolyester
Cross Section DesignationK
Effective Length1013
Effective Length39.87
Outside Circumference1027
Outside Circumference40.43
TypeAutomotive v-ribbed belt (standard)
Rib Quantity5

This part fits 7 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2002Mazda6262.5LV6GASAlternator and Air ConditioningAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
2001Mazda6262.5LV6GASAlternator and Air ConditioningAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
2000Mazda6262.5LV6GASAlternator and Air ConditioningAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
2000MazdaMillenia2.5LV6GASAlternator and Air ConditioningAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1999Mazda6262.5LV6GASAlternator and Air ConditioningAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1999MazdaMillenia2.5LV6GASAlternator and Air ConditioningAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
1998Mazda6262.5LV6GASAlternator and Air ConditioningAvailable Until Stock Depleted; Automotive V-Ribbed Belt (Standard)

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

105039825-050398397K5MK398K5405039750503985050398DR5K10105K10155K3985PK10105PK10135PVK10109091602216K050398K3985KL0115908KL4715908AKL70159089UKLG415908

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.