HomeBelts and Cooling > Accessory Drive Belt System ComponentsGates K100578HD Serpentine Belt - Fan, Fan and Water Pump or Hub To Fan
Part #: K100578HD

Gates K100578HD Serpentine Belt - Fan, Fan and Water Pump or Hub To Fan

Fan, Fan and Water Pump, and Hub To Fan
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$42.39Free 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

Overview of Gates FleetRunner Heavy Duty Micro-V Belt K100578HD

The Gates FleetRunner Heavy Duty Micro-V Belt K100578HD is engineered for reliable performance in demanding automotive applications. Designed as a serpentine belt with a heavy-duty automotive v-ribbed belt construction, it supports accessory drive systems in various vehicle makes and models requiring durable belt solutions.

  • Top width: 1.367 inches (35 mm)
  • Effective length: 57.81 inches (1468 mm)
  • Outside circumference: 58.375 inches (1482 mm)
  • Rib quantity: 10 ribs for optimal grip and power transmission
  • Belt material: EPDM for enhanced durability and heat resistance
  • Cord material: Polyester for strength and flexibility
  • Cross section designation: K section
  • OE comparison rating: OE improved for reliable replacement

Detailed Product Description

The Gates FleetRunner Heavy Duty Micro-V Belt K100578HD features a 10-rib design that ensures consistent power delivery to engine accessories such as alternators, water pumps, and air conditioning compressors. Constructed with EPDM (ethylene propylene diene monomer) rubber, this belt offers resistance to heat, ozone, and wear, extending service life under heavy-duty conditions. The polyester cord material provides tensile strength and flexibility, maintaining belt integrity during operation. With a top width of 1.367 inches and an effective length of 57.81 inches, this serpentine belt fits applications requiring a K-section belt with a 10-rib profile. The OE improved rating indicates it meets or exceeds original equipment specifications for performance and durability.

FleetRunner Heavy Duty Micro-V Belt Product Line

The FleetRunner Heavy Duty Micro-V Belt line by Gates is designed specifically for commercial and fleet vehicles that demand robust accessory drive components. This product line focuses on delivering enhanced durability and resistance to harsh operating environments, making it suitable for heavy-duty trucks, vans, and other commercial vehicles. The K100578HD part is part of this line, providing a reliable replacement option for vehicles requiring a heavy-duty serpentine belt with a 10-rib configuration.

Common Applications and Problem Solving

  • Replacement for worn or cracked serpentine belts in commercial trucks and fleet vehicles
  • Addresses belt slippage and loss of accessory function due to stretched or damaged belts
  • Prevents premature belt failure caused by heat and ozone exposure
  • Improves accessory drive system reliability in vehicles with high mileage or heavy load conditions
  • Compatible with vehicles requiring a K-section, 10-rib heavy-duty serpentine belt

Installation Notes and Tips

Ensure proper belt routing according to the vehicle’s service manual before installation. Inspect pulleys and tensioners for wear or damage to avoid premature belt failure. Use a belt tension gauge or follow manufacturer torque specifications to achieve correct tension. Avoid twisting or forcing the belt during installation to maintain cord integrity. The Gates FleetRunner Heavy Duty Micro-V Belt K100578HD is designed for direct replacement in compatible vehicles requiring a 10-rib K-section belt.

Quality Assurance and Warranty

Gates manufactures the FleetRunner Heavy Duty Micro-V Belt K100578HD to meet stringent quality standards. The belt is constructed with durable EPDM material and reinforced polyester cords to ensure long service life under heavy-duty conditions. This part carries an OE improved rating, indicating it meets or exceeds original equipment specifications. Warranty coverage details should be confirmed with the product supplier or manufacturer documentation.

BrandGates
Part NumberK100578HD
Top Width1.367
Top Width35
Cord MaterialPolyester
Cross Section DesignationK
Effective Length1468
Effective Length57.81
Outside Circumference1482
Outside Circumference58.375
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:

20430385208827792106473325-100578HDK100578HD

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