HomeBelts and Cooling > Accessory Drive Belt System ComponentsGates K040315SF Serpentine Belt - Air Conditioning
Part #: K040315SF

Gates K040315SF Serpentine Belt - Air Conditioning

Premium OE Stretch Fit Micro-V Belt, Air Conditioning
⚙️ 9 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Premium OE Stretch Fit Micro-V Belt, Air Conditioning
🚗Fitment: Ford, Mustang
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Gates Premium OE Stretch Fit Micro-V Belt K040315SF

The Gates Premium OE Stretch Fit Micro-V Belt K040315SF is engineered for reliable performance in Ford Mustang vehicles. Designed as a serpentine belt with a stretch fit design, it ensures precise fitment and durability for accessory drive belt systems.

  • Top width options: 0.56 inch and 14 mm
  • Cord material constructed from durable nylon
  • Cross section designation: K
  • Effective length: 31.52 inches (801 mm)
  • Outside circumference: 31.13 inches (816 mm)
  • 4 rib automotive V-ribbed belt design
  • Belt material made from EPDM for enhanced wear resistance
  • Requires special installation tool
  • Includes installation instruction sheet
  • OE exact and OE performance rated

Product Line Details: Premium OE Stretch Fit Micro-V Belt

The Premium OE Stretch Fit Micro-V Belt line by Gates focuses on delivering original equipment quality with a stretch fit design that eliminates the need for belt tensioners in certain applications. This product line is engineered to meet or exceed OEM specifications, providing consistent performance and fit. The K040315SF part number is part of this line, offering a precise fit and reliable operation for Ford Mustang accessory drive systems.

Detailed Product Description

The Gates K040315SF serpentine belt features a 4-rib design with a K cross section, optimized for automotive accessory drive systems. Its nylon cord material provides strength and flexibility, while the EPDM belt compound offers resistance to heat, ozone, and wear. The belt’s effective length of 31.52 inches (801 mm) and outside circumference of 31.13 inches (816 mm) ensure compatibility with specified Ford Mustang models. This stretch fit belt requires a special installation tool and comes with an instruction sheet to facilitate proper installation.

Applications and Problem Solving

  • Replacement for worn or cracked serpentine belts in Ford Mustang vehicles
  • Addresses belt slippage and noise issues caused by stretched or damaged belts
  • Helps maintain proper operation of accessory components such as alternator, power steering pump, and air conditioning compressor
  • Prevents premature belt failure due to heat and wear
  • Ensures consistent engine accessory drive performance

Installation Notes and Tips

  • Requires a special installation tool for proper stretch fit installation
  • Follow the included instruction sheet carefully to avoid improper tensioning
  • Inspect pulleys and accessory components for wear before installation
  • Ensure belt routing matches OEM specifications for Ford Mustang

Quality Assurance and Warranty

The Gates Premium OE Stretch Fit Micro-V Belt K040315SF is manufactured to meet original equipment standards, ensuring reliable performance and durability. It carries OE exact and OE performance ratings, confirming its suitability for Ford Mustang accessory drive systems. Warranty details are provided by Gates and typically cover defects in materials and workmanship under normal use.

BrandGates
Part NumberK040315SF
PositionPremium OE Stretch Fit Micro-V Belt, Air Conditioning
Belt MaterialEPDM
Cord MaterialNylon
Cord MaterialNylon
Cross Section DesignationK
Effective Length31.52
Effective Length801
Installation InstructionsSheet N
Installation Tools RequirementsSpecial Installation Tool
Instruction Manual IncludedSheet N
OE Comparison RatingOE Exact
OE Comparison RatingOE Performance
Outside Circumference31.13
Outside Circumference816
Rib Quantity4
SectionK
Top Width.56
Top Width14
TypeAutomotive V-Ribbed Belt (Stretch Fit)
TypeAutomotive V-Ribbed Belt (Stretch Fit)
Washer Pump IncludedEPDM

This part fits 9 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2023FordMustang2.3LL4GASAir Conditioning3mm Zip Tie Required for Installation; Premium OE Stretch Fit Micro-V Belt
2022FordMustang2.3LL4GASAir Conditioning3mm Zip Tie Required for Installation; Premium OE Stretch Fit Micro-V Belt
2021FordMustang2.3LL4GASAir Conditioning3mm Zip Tie Required for Installation; Premium OE Stretch Fit Micro-V Belt
2020FordMustang2.3LL4GASAir Conditioning3mm Zip Tie Required for Installation; Premium OE Stretch Fit Micro-V Belt
2019FordMustang2.3LL4GASAir Conditioning3mm Zip Tie Required for Installation; Premium OE Stretch Fit Micro-V Belt
2018FordMustang2.3LL4GASAir Conditioning3mm Zip Tie Required for Installation; Premium OE Stretch Fit Micro-V Belt
2017FordMustang2.3LL4GASAir Conditioning3mm Zip Tie Required for Installation; Premium OE Stretch Fit Micro-V Belt
2016FordMustang2.3LL4GASAir Conditioning3mm Zip Tie Required for Installation; Premium OE Stretch Fit Micro-V Belt
2015FordMustang2.3LL4GASAir Conditioning3mm Zip Tie Required for Installation; Premium OE Stretch Fit Micro-V Belt

* 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:

25-040315SF4K315SFFR3Z 8620 A

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