HomeBelts and Cooling > Accessory Drive Belt System ComponentsGates K080550 Serpentine Belt - Alternator and Air Conditioning, Fan or Fan and Alternator
Part #: K080550

Gates K080550 Serpentine Belt - Alternator and Air Conditioning, Fan or Fan and Alternator

Premium OE Micro-V Belt, Fan and Alternator, Fan, and Alternator and Air Conditioning
⚙️ 11 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Premium OE Micro-V Belt, Fan and Alternator, Fan, and Alternator and Air Conditioning
🚗Fitment: BMW, M2, M3, and M4
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Serpentine Belt for BMW M2, M3, and M4

The Gates Premium OE Micro-V Belt K080550 is engineered to meet the demanding requirements of BMW M2, M3, and M4 models. Designed as an automotive v-ribbed belt with a standard 8-rib configuration, this serpentine belt ensures consistent power transmission and durability.

  • Top width of 1.087 inches (28 mm) for precise fitment
  • Effective length of approximately 55.13 inches (1400 mm) for accurate replacement
  • Constructed with EPDM belt material for enhanced heat and wear resistance
  • Polyester cord material provides strength and flexibility
  • Cross section designation K, compatible with standard automotive v-ribbed belt systems
  • Outside circumference measures about 55.69 inches (1415 mm)

About the Gates Premium OE Micro-V Belt Line

The Premium OE Micro-V Belt line by Gates is designed to deliver original equipment performance and reliability. This product line focuses on meeting or exceeding OEM specifications, making it suitable for high-performance vehicles like the BMW M2, M3, and M4. The K080550 belt maintains consistent tension and reduces slippage, contributing to the efficient operation of accessory drive systems.

Technical Details and Construction

This serpentine belt features an 8-rib design that matches the original equipment profile for BMW accessory drive systems. The EPDM (ethylene propylene diene monomer) belt material offers resistance to heat, ozone, and wear, extending the belt's service life. Reinforced with polyester cords, the belt maintains flexibility while providing the tensile strength necessary for reliable power transmission. The K cross section ensures compatibility with pulleys designed for standard automotive v-ribbed belts.

Common Applications and Problem Solving

  • Replacement for worn or cracked serpentine belts on BMW M2, M3, and M4
  • Addresses belt slippage and squealing noises caused by stretched or damaged belts
  • Prevents accessory drive system failures due to belt degradation
  • Maintains proper operation of alternator, power steering, and air conditioning components
  • Helps avoid overheating issues related to cooling system belt drive

Installation Notes and Tips

When installing the Gates Premium OE Micro-V Belt K080550, ensure the belt routing matches the vehicle’s accessory drive diagram. Inspect pulleys and tensioners for wear or damage before installation. Proper tension adjustment is critical to prevent premature belt wear or slippage. Use appropriate tools to avoid damaging the belt during installation.

Quality Assurance and Warranty

Gates Premium OE Micro-V Belts are manufactured to meet strict quality standards and OE performance ratings. The K080550 part number is backed by Gates’ commitment to durability and reliability. While specific warranty details may vary, Gates products typically include coverage against manufacturing defects to provide confidence in long-term use.

BrandGates
Part NumberK080550
PositionPremium OE Micro-V Belt, Fan and Alternator, Fan, and Alternator and Air Conditioning
Top Width1.087
Top Width28
Cord MaterialPolyester
Cross Section DesignationK
Effective Length1400
Effective Length55.13
Outside Circumference1415
Outside Circumference55.694
TypeAutomotive v-ribbed belt (standard)
Rib Quantity8
Washer Pump IncludedEpdm
Belt MaterialEpdm
Cord MaterialPolyester
OE Comparison RatingOe performance
SectionK
TypeAutomotive v-ribbed belt (standard)

This part fits 11 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2020BMWM43.0LL6GASN/APremium OE Micro-V Belt
2019BMWM23.0LL6GASN/APremium OE Micro-V Belt
2019BMWM43.0LL6GASN/APremium OE Micro-V Belt
2018BMWM33.0LL6GASN/APremium OE Micro-V Belt
2018BMWM43.0LL6GASN/APremium OE Micro-V Belt
2017BMWM33.0LL6GASN/APremium OE Micro-V Belt
2017BMWM43.0LL6GASN/APremium OE Micro-V Belt
2016BMWM33.0LL6GASN/APremium OE Micro-V Belt
2016BMWM43.0LL6GASN/APremium OE Micro-V Belt
2015BMWM33.0LL6GASN/APremium OE Micro-V Belt
2015BMWM43.0LL6GASN/APremium OE 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:

112878486051230769H11257760H11257784H115065875201169202658202684202690202777203665204092204647102052632106473425-08055025-080550HD25-7805530966663288724328873538026213900535390309039039903908564391156039115863915910392175340805504080550X4080783422075150620007550805505080550DR550K8550K8MK877057378K14008K5508K550HDV8PK13958PK13978PK1400A-550K8D11084831F6HT 8620 ALBGT4080550J903090J908564J911560J911586K080550K080550HDN308133

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