HomeBelts and Cooling > Accessory Drive Belt System ComponentsGates K100557HD Serpentine Belt - Fan
Part #: K100557HD

Gates K100557HD Serpentine Belt - Fan

Fan
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$38.66Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Heavy Duty Serpentine Belt for Automotive Applications

The Gates FleetRunner Heavy Duty Micro-V Belt (Part Number K100557HD) is engineered to provide durable and consistent performance in demanding automotive accessory drive systems. Designed with a 10-rib configuration and constructed from high-quality EPDM material, this serpentine belt is suitable for vehicles requiring a robust and long-lasting belt solution.

  • Top width of 1.367 inches (35 mm) for precise fitment
  • Effective length options of 1416 mm (55.75 inches) and 1432 mm (56.375 inches) to match specific vehicle requirements
  • Constructed with polyester cord material for enhanced strength and flexibility
  • Heavy duty automotive V-ribbed belt design with 10 ribs for optimal power transmission
  • EPDM belt material and washer pump components for improved durability and resistance to heat and wear
  • OE improved rating ensures compatibility and performance exceeding original equipment standards

About the FleetRunner Heavy Duty Micro-V Belt Line

The FleetRunner Heavy Duty Micro-V Belt line by Gates is designed specifically for commercial and fleet vehicles that demand extended belt life and reliable operation under heavy loads. This product line focuses on delivering enhanced durability through advanced materials like EPDM and polyester cords, making it suitable for vehicles with high accessory loads and harsh operating conditions. The K100557HD part is a representative example, offering a balance of strength and flexibility for consistent accessory drive performance.

Technical Details and Specifications

This serpentine belt features a cross section designation of 'K' and a rib quantity of 10, which provides a stable grip on pulleys and reduces slippage. The belt's polyester cord material contributes to its tensile strength, while the EPDM rubber compound offers resistance to heat, ozone, and wear. The effective length measurements of 1416 mm and 1432 mm accommodate specific vehicle fitments requiring precise belt length. The belt's top width of 1.367 inches (35 mm) ensures compatibility with accessory drive pulleys designed for this size.

Common Applications and Problem Solving

  • Replacement for worn or cracked serpentine belts in heavy duty trucks and commercial vehicles
  • Addresses belt slippage and squealing caused by stretched or damaged belts
  • Prevents accessory drive failures due to belt breakage or degradation
  • Suitable for vehicles experiencing frequent belt wear under high load conditions
  • Helps maintain proper operation of alternators, power steering pumps, and air conditioning compressors

Installation Notes and Tips

Ensure the belt routing matches the vehicle manufacturer’s specifications before installation. Verify the belt length and rib count correspond to the original equipment to avoid fitment issues. Use proper tensioning tools to achieve the recommended belt tension, preventing premature wear or slippage. Inspect pulleys and tensioners for wear or damage during replacement to ensure optimal belt performance.

Quality Assurance and Warranty

The Gates FleetRunner Heavy Duty Micro-V Belt K100557HD meets or exceeds OE standards with an improved rating for durability and performance. Manufactured with high-quality EPDM and polyester materials, this belt is designed for extended service life in demanding environments. While specific warranty details are not provided, Gates products typically come with manufacturer-backed quality assurance to support reliable operation in fleet and commercial vehicle applications.

BrandGates
Part NumberK100557HD
Top Width1.367
Top Width35
Cord MaterialPolyester
Cross Section DesignationK
Effective Length1416
Effective Length55.75
Outside Circumference1432
Outside Circumference56.375
TypeAutomotive v-ribbed belt (heavy duty)
Rib Quantity10
Washer Pump IncludedEpdm
Belt MaterialEpdm
Cord MaterialPolyester
OE Comparison RatingOe improved
SectionK
TypeAutomotive v-ribbed belt (heavy duty)

This part fits 0 vehicles. Search below:

YearMakeModelPositionNotes

* 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:

013189341610PK142025-100557HDGT4100557K100557HD

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