HomeBelts and Cooling > Accessory Drive Belt System ComponentsGates K121124 Serpentine Belt - Fan
Part #: K121124

Gates K121124 Serpentine Belt - Fan

Fan
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$88.62Free 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 Serpentine Belt for Automotive Applications

The Gates Premium OE Micro-V Belt K121124 is engineered to deliver consistent performance in accessory drive belt systems. Designed with durable materials and precise dimensions, this serpentine belt supports efficient engine operation in various vehicle makes and models.

  • Top width of 1.647 inches (42 mm) for optimal fit
  • Effective length of 112.4 inches (2855 mm) ensuring proper belt tension
  • 12 rib automotive v-ribbed belt design for smooth power transmission
  • Constructed with EPDM belt material and polyester cord for enhanced durability
  • Cross section designation K for compatibility with standard accessory drive systems

About the Gates Premium OE Micro-V Belt Line

The Premium OE Micro-V Belt line by Gates is designed to meet original equipment performance standards. This product line focuses on delivering reliable fit and function, using high-quality EPDM materials and polyester cords to resist wear and extend belt life. The K121124 serpentine belt is part of this line, ensuring it matches OE specifications for automotive v-ribbed belts.

Technical Details and Specifications

The K121124 serpentine belt features a top width of 1.647 inches (42 mm) and an effective length of 112.4 inches (2855 mm), with an outside circumference of 113 inches (2870 mm). Its 12-rib design provides consistent grip and power transfer to engine accessories. The belt’s EPDM construction offers resistance to heat, ozone, and wear, while the polyester cord enhances tensile strength and flexibility. This belt is classified under the K cross section, suitable for standard automotive v-ribbed belt systems.

Common Applications and Problem Solving

  • Replacement for worn or cracked serpentine belts in vehicles requiring a K-section belt
  • Addresses belt slippage and squealing issues caused by stretched or damaged belts
  • Helps restore proper operation of alternators, power steering pumps, and air conditioning compressors
  • Prevents premature belt failure due to heat and environmental exposure
  • Compatible with vehicles that specify a 12-rib, 1.647-inch wide serpentine belt

Installation Notes and Tips

Ensure the belt routing matches the vehicle’s accessory drive diagram before installation. Check pulleys and tensioners for wear or damage to avoid premature belt failure. Use proper tensioning tools to achieve manufacturer-recommended belt tension. Inspect the belt periodically for signs of wear, cracking, or glazing to maintain optimal performance.

Quality Assurance and Warranty

The Gates Premium OE Micro-V Belt K121124 is manufactured to meet OE performance standards, providing reliable durability and fit. Gates backs this product with quality assurance to ensure consistent performance in automotive accessory drive systems. Please refer to Gates’ official warranty policy for specific coverage details.

BrandGates
Part NumberK121124
Top Width1.647
Top Width42
Cord MaterialPolyester
Cross Section DesignationK
Effective Length112.4
Effective Length2855
Outside Circumference113
Outside Circumference2870
TypeAutomotive v-ribbed belt (standard)
Rib Quantity12
Washer Pump IncludedEpdm
Belt MaterialEpdm
Cord MaterialPolyester
OE Comparison RatingOe performance
SectionK
TypeAutomotive v-ribbed belt (standard)

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:

1126K12MK12K112425-12112425-121124HD3621193C241211265121128K121124HD

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