HomeBelts and Cooling > Accessory Drive Belt System ComponentsDayco 5050745 Serpentine Belt - Main Drive
Part #: 5050745

Dayco 5050745 Serpentine Belt - Main Drive

Main Drive
⚙️ 14 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$33.52Free 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
🚗Fitment: Chevrolet, GMC, and Saturn, Colorado, Canyon, SC, and SL2
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Durable Serpentine Belt for Chevrolet, GMC, and Saturn Vehicles

The Dayco 5050745 serpentine belt is engineered to provide reliable performance for select Chevrolet, GMC, and Saturn models. Designed with durable EPDM material reinforced with aramid fibers, this belt ensures long-lasting operation under various temperature conditions.

Key Features of Dayco 5050745 Serpentine Belt

  • Material: EPDM with aramid reinforcement for enhanced strength and flexibility
  • Top Width: 0.68 inches for precise fitment
  • Effective Length: Approximately 74.5 inches (1892.30 mm)
  • Outside Circumference: Approximately 75.16 inches (1909.07 mm)
  • Rib Quantity: 5 ribs with a straight rib profile
  • Cross Section: K-section design for optimal power transmission
  • Operating Temperature Range: -45°C to 212°F (-42.7°C to 100°C)
  • Meets SAE J1459 and SAE J2432 standards for quality and performance

Detailed Description of Dayco 5050745 Serpentine Belt

This serpentine belt is specifically designed for accessory drive belt systems in Chevrolet Canyon, Colorado, GMC Canyon, and Saturn SC and SL2 models. The EPDM (ethylene propylene diene monomer) rubber compound combined with aramid reinforcement provides resistance to heat, wear, and cracking. The 5-rib K-section profile ensures efficient power transfer to engine accessories such as the alternator, power steering pump, and air conditioning compressor. Its black color and standard rib depth maintain consistent engagement with pulleys, reducing slippage and noise.

Common Applications and Issues Addressed

  • Replacement for worn or cracked serpentine belts in Chevrolet Canyon and Colorado models
  • Restores proper accessory drive function in GMC Canyon vehicles
  • Eliminates belt squeal and slipping in Saturn SC and SL2 models
  • Prevents overheating and accessory failure due to belt degradation
  • Maintains engine performance by ensuring consistent belt tension and alignment

Installation Notes and Tips

  • Verify compatibility with your vehicle’s make, model, and year before installation
  • Inspect pulleys and tensioners for wear or damage during belt replacement
  • Use proper belt routing diagrams specific to Chevrolet, GMC, or Saturn models
  • Ensure correct tension to avoid premature belt wear or noise
  • Consult vehicle service manual for torque specifications and installation procedures

Quality Assurance and Warranty Information

The Dayco 5050745 serpentine belt is manufactured to meet SAE J1459 and SAE J2432 standards, ensuring reliable performance and durability. Dayco products undergo rigorous quality control to maintain consistent material properties and dimensional accuracy. While specific warranty terms may vary, Dayco typically offers coverage against manufacturing defects. Refer to the product documentation or manufacturer for detailed warranty information.

BrandDayco
Part Number5050745
ColorBlack
Cross SectionK-Section
Effective Length74.50
Effective Length1892.30
MaterialEPDM, Aramid Reinforced
Maximum Operating Temperature100
Maximum Operating Temperature212
Minimum Operating Temperature-45
Minimum Operating Temperature-42.7
Outside Circumference75.16
Outside Circumference1909.07
Rib DepthStandard
Rib ProfileStraight Rib
Rib Quantity5
StandardsSAE J1459, SAE J2432
Top Width.68

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2022ChevroletColorado3.6LV6Main Drive
2022GMCCanyon3.6LV6Main Drive
2021ChevroletColorado3.6LV6Main Drive
2021GMCCanyon3.6LV6Main Drive
2020ChevroletColorado3.6LV6Main Drive
2020GMCCanyon3.6LV6Main Drive
2019ChevroletColorado3.6LV6Main Drive
2019GMCCanyon3.6LV6Main Drive
2018ChevroletColorado3.6LV6Main Drive
2018GMCCanyon3.6LV6Main Drive
2017ChevroletColorado3.6LV6Main Drive
2017GMCCanyon3.6LV6Main Drive
1991SaturnSCMain DriveCompatible with vehicles containing air conditioning.
1991SaturnSL2Main DriveCompatible with vehicles containing air conditioning.

* 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:

745K5

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