HomeBelts and Cooling > Accessory Drive Belt System ComponentsDayco 5PK712EE Serpentine Belt - Air Conditioning
Part #: 5PK712EE

Dayco 5PK712EE Serpentine Belt - Air Conditioning

Supersedes E050274, Air Conditioning
⚙️ 9 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$21.08Free 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
📦Supersedes E050274, Air Conditioning
🚗Fitment: Mazda, 3 and 3 Sport
🔄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 Mazda 3 and 3 Sport

The Dayco 5PK712EE serpentine belt is engineered to meet the demands of Mazda 3 and 3 Sport vehicles. Designed with durable EPDM4 material and a 5-rib K-section profile, this belt ensures consistent performance under a wide range of operating temperatures.

  • Constructed from EPDM4 for enhanced durability and heat resistance
  • Top width of 0.68 inches with 5 straight ribs for optimal grip
  • Effective length of approximately 28.031 inches (711.99 mm)
  • Designed to operate between -45°C and 212°F (100°C) for reliable performance
  • Complies with SAE J1459 standards for quality and safety

Dayco Supersedes E050274 Product Line Details

This serpentine belt is part of Dayco's Supersedes E050274 line, which focuses on providing direct replacement components that meet or exceed original equipment specifications. The 5PK712EE belt maintains the precise dimensions and rib profile required for proper fit and function in compatible Mazda models, ensuring dependable accessory drive system operation.

Technical Description and Attributes

The 5PK712EE serpentine belt features a K-section cross section with five straight ribs, delivering consistent power transmission to accessory components. Its black EPDM4 material offers resistance to heat, ozone, and wear, supporting a maximum operating temperature of 100°C (212°F) and a minimum of -45°C (-42.7°F). The belt's effective length measures 28.031 inches (711.99 mm), with a free length of approximately 27.4 inches (695.96 mm), ensuring proper tension and fitment. The standard rib depth and straight rib profile contribute to smooth operation and reduced slippage.

Compatible Vehicles and Common Applications

  • Replacement serpentine belt for Mazda 3 models
  • Compatible with Mazda 3 Sport accessory drive systems
  • Addresses issues such as belt wear, cracking, and slipping
  • Suitable for resolving accessory drive noise and loss of power transmission
  • Helps maintain proper function of alternator, power steering, and air conditioning components

Installation Notes and Tips

When installing the Dayco 5PK712EE serpentine belt, ensure the belt routing matches the vehicle’s accessory drive diagram. Verify the belt tension is within manufacturer specifications to prevent premature wear or slippage. Inspect pulleys and tensioners for wear or damage before installation to maximize belt life. Proper alignment of the ribs with pulley grooves is essential for optimal performance.

Quality Assurance and Warranty

Dayco serpentine belts are manufactured to meet SAE J1459 standards, ensuring consistent quality and durability. The 5PK712EE belt undergoes rigorous testing to comply with temperature and material specifications. While specific warranty details are not provided, Dayco products typically come with manufacturer-backed quality assurance to support reliable operation in Mazda 3 and 3 Sport vehicles.

BrandDayco
Part Number5PK712EE
PositionSupersedes E050274, Air Conditioning
MaterialEpdm4
Top Width.68
ColorBlack
Effective Length28.031
Effective Length711.99
Outside Circumference0
Rib Quantity5
Cross SectionK-section
Free Length27.4
Free Length695.960
Maximum Operating Temperature100
Maximum Operating Temperature212
Minimum Operating Temperature-42.7
Minimum Operating Temperature-45
Rib DepthStandard
Rib ProfileStraight rib
StandardsSae j1459

This part fits 9 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2013Mazda32.0LL4Air ConditioningElastic self-tensioning belt; installation tool required.; Supersedes E050274
2013Mazda32.5LL4Air ConditioningElastic self-tensioning belt; installation tool required.; Supersedes E050274
2012Mazda32.0LL4Air ConditioningElastic self-tensioning belt; installation tool required.; Supersedes E050274
2012Mazda32.5LL4Air ConditioningElastic self-tensioning belt; installation tool required.; Supersedes E050274
2011Mazda32.0LL4Air ConditioningElastic self-tensioning belt; installation tool required.; Supersedes E050274
2011Mazda32.5LL4Air ConditioningElastic self-tensioning belt; installation tool required.; Supersedes E050274
2010Mazda32.0LL4Air ConditioningElastic self-tensioning belt; installation tool required.; Supersedes E050274
2010Mazda3 Sport2.0LL4Air ConditioningElastic self-tensioning belt; installation tool required.; Supersedes E050274
2009Mazda3 SportAir ConditioningElastic self-tensioning belt; installation tool required.; Supersedes E050274

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.