HomeBelts and Cooling > Accessory Drive Belt System ComponentsDayco 3PK773EE Serpentine Belt - Vacuum Pump
Part #: 3PK773EE

Dayco 3PK773EE Serpentine Belt - Vacuum Pump

Supersedes E030296, Vacuum Pump
79 vehicles fit this part
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Supersedes E030296, Vacuum Pump
Fitment: Cadillac, Chevrolet, and GMC, Escalade, Suburban, Tahoe, Yukon, Yukon XL, Escalade ESV, Silverado 1500, and Sierra 1500
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Overview of Dayco 3PK773EE Serpentine Belt

The Dayco 3PK773EE serpentine belt is engineered for reliable performance in select Cadillac, Chevrolet, and GMC vehicles. Designed with durable EPDM material and a K-section cross profile, this belt supports accessory drive systems in models like the Escalade, Sierra 1500, and Yukon.

  • Constructed from EPDM4 material for enhanced durability
  • Top width of 0.40 inches with 3 ribs for optimal grip
  • Effective length options: 30.433 inches (773 mm) and free length 29.6 inches (751.840 mm)
  • Designed to operate within a temperature range of -45°F to 212°F
  • Standard rib depth with a straight rib profile for consistent performance
  • Meets SAE J1459 standards for quality and reliability

Detailed Product Description

The Dayco 3PK773EE serpentine belt is part of the Supersedes E030296 product line, which ensures compatibility and performance improvements over previous belt designs. This belt features a K-section cross section with three ribs, providing a balance of flexibility and strength necessary for accessory drive belt systems. The EPDM4 material composition offers resistance to heat, ozone, and wear, making it suitable for the demanding environments found in Cadillac Escalade, Chevrolet Silverado 1500, and GMC Yukon models. Its effective length of approximately 30.433 inches (773 mm) and free length near 29.6 inches (751.840 mm) allow for precise fitment in specified vehicles.

Compatible Vehicles and Applications

  • Cadillac Escalade and Escalade ESV
  • Chevrolet Sierra 1500, Sierra 1500 Limited, Silverado 1500, Silverado 1500 LD, and Tahoe
  • GMC Sierra 1500, Yukon, and Yukon XL

This serpentine belt is designed to replace worn or damaged belts in the accessory drive system, ensuring proper operation of components such as the alternator, power steering pump, and air conditioning compressor.

Common Issues Addressed by This Serpentine Belt

  • Slipping or squealing belts causing accessory malfunction
  • Cracked or frayed belt surfaces reducing drive efficiency
  • Loss of tension leading to accessory drive failure
  • Heat-related belt degradation in high-temperature engine environments
  • Wear from ozone exposure and mechanical stress over time

Installation Notes and Tips

When installing the Dayco 3PK773EE serpentine belt, ensure the belt routing matches the vehicle’s accessory drive diagram. Inspect pulleys and tensioners for wear or damage before installation. Proper tensioning is critical to prevent premature belt wear or slippage. Use a belt tension gauge if available, and verify alignment of all pulleys to maintain optimal belt life.

Quality Assurance and Warranty

Dayco serpentine belts comply with SAE J1459 standards, reflecting adherence to industry quality and performance benchmarks. The 3PK773EE belt is manufactured to meet or exceed OEM specifications for the listed Cadillac, Chevrolet, and GMC models. Warranty coverage details should be confirmed with the original equipment manufacturer or distributor.

BrandDayco
Part Number3PK773EE
PositionSupersedes E030296, Vacuum Pump
ColorBlack
Cross SectionK-Section
Effective Length30.433
Effective Length773
Free Length29.6
Free Length751.840
MaterialEPDM4
Maximum Operating Temperature100
Maximum Operating Temperature212
Minimum Operating Temperature-45
Minimum Operating Temperature-42.7
Outside Circumference0
Rib DepthStandard
Rib ProfileStraight Rib
Rib Quantity3
StandardsSAE J1459
Top Width.40

This part fits 79 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2020CadillacEscaladeFLEXVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2020CadillacEscalade ESVVacuum PumpZip Tie required for belt installation. See instructions on belt package.; Supersedes E030296
2020ChevroletTahoe5.3LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2020ChevroletTahoe6.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2020GMCYukon5.3LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2020GMCYukon6.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2020GMCYukon XL5.3LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2020GMCYukon XL6.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2019CadillacEscaladeFLEXVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2019CadillacEscalade ESVVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2019ChevroletSilverado 1500 LDVacuum PumpZip Tie required for belt installation. See instructions on belt package.; Supersedes E030296
2019ChevroletTahoe5.3LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2019ChevroletTahoe6.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2019GMCSierra 1500 LimitedVacuum PumpZip Tie required for belt installation. See instructions on belt package.; Supersedes E030296
2019GMCYukon5.3LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2019GMCYukon6.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2019GMCYukon XL5.3LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2019GMCYukon XL6.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2018CadillacEscaladeFLEXVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2018CadillacEscalade ESVFLEXVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2018ChevroletSilverado 15005.3LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2018ChevroletSilverado 15006.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2018ChevroletSilverado 15004.3LV6Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2018ChevroletTahoe5.3LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2018ChevroletTahoe6.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2018GMCSierra 15005.3LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2018GMCSierra 15006.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2018GMCSierra 15004.3LV6Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2018GMCYukon5.3LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2018GMCYukon6.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2018GMCYukon XL5.3LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2018GMCYukon XL6.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2017CadillacEscaladeFLEXVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2017CadillacEscalade ESVFLEXVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2017ChevroletSilverado 15005.3LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2017ChevroletSilverado 15006.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2017ChevroletSilverado 15004.3LV6Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2017ChevroletTahoeVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2017GMCSierra 15005.3LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2017GMCSierra 15006.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2017GMCSierra 15004.3LV6Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2017GMCYukon5.3LV8FLEXVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2017GMCYukon6.2LV8FLEXVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2017GMCYukon XL5.3LV8FLEXVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2017GMCYukon XL6.2LV8FLEXVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2016CadillacEscaladeFLEXVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2016CadillacEscalade ESVVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2016ChevroletSilverado 15005.3LV8GASVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2016ChevroletSilverado 15005.3LV8FLEXVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2016ChevroletSilverado 15006.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2016ChevroletSilverado 15004.3LV6Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2016ChevroletTahoeVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2016GMCSierra 15005.3LV8GASVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2016GMCSierra 15005.3LV8FLEXVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2016GMCSierra 15006.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2016GMCSierra 15004.3LV6Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2016GMCYukon5.3LV8FLEXVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2016GMCYukon6.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2016GMCYukon XL5.3LV8FLEXVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2016GMCYukon XL6.2LV8FLEXVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2015CadillacEscaladeFLEXVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2015CadillacEscalade ESVFLEXVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2015ChevroletSilverado 15005.3LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2015ChevroletSilverado 15006.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2015ChevroletSilverado 15004.3LV6Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2015ChevroletTahoeVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2015GMCSierra 15005.3LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2015GMCSierra 15006.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2015GMCSierra 15004.3LV6Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2015GMCYukon5.3LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2015GMCYukon6.2LV8FLEXVacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2015GMCYukon XL5.3LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2015GMCYukon XL6.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2014ChevroletSilverado 15005.3LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2014ChevroletSilverado 15006.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2014ChevroletSilverado 15004.3LV6Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2014GMCSierra 15005.3LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2014GMCSierra 15006.2LV8Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296
2014GMCSierra 15004.3LV6Vacuum PumpSelf-tensioning serpentine belt; zip tie needed for installation, refer to package instructions.; Supersedes E030296

* 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:

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