Part #: 5040437

Dayco 5040437 Serpentine Belt

Air Conditioning, Power Steering, Air Conditioning and Power Steering, and Water Pump and Air Conditioning
⚙️ 39 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
🚗Fitment: Chevrolet, Jeep, Ram, and Toyota, 1500, 4Runner, Caprice, Paseo, SS, T100, Tacoma, Tercel, and Wrangler
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Durable Serpentine Belt for Chevrolet, Jeep, Ram, and Toyota Vehicles

The Dayco 5040437 serpentine belt is engineered to provide reliable performance for a range of vehicles including Chevrolet Caprice, Jeep Wrangler, Ram 1500, and Toyota Tacoma models. Constructed with EPDM and aramid reinforcement, this belt offers enhanced durability and resistance to wear under various operating conditions.

  • Material: EPDM with aramid fiber reinforcement for strength and longevity
  • Top Width: 0.54 inches ensuring proper fit and tension
  • Effective Length: Approximately 1109.98 mm (43.7 inches) for precise compatibility
  • Outside Circumference: 1126.75 mm (44.36 inches) matching OEM specifications
  • Rib Quantity: 4 ribs with a straight rib profile for efficient power transmission
  • Cross Section: K-section design for optimal belt seating and flexibility
  • Operating Temperature Range: -45°C to 100°C (-49°F to 212°F) suitable for diverse climates
  • Meets SAE J1459 and SAE J2432 standards for quality and performance

Technical Overview of Dayco 5040437 Serpentine Belt

This serpentine belt features a K-section cross section with four straight ribs, designed to deliver consistent power transfer to accessory drive components. The EPDM material combined with aramid reinforcement enhances resistance to heat, ozone, and wear, extending belt life. The belt’s dimensions, including a top width of 0.54 inches and an outside circumference of approximately 44.36 inches, ensure compatibility with specific Chevrolet, Jeep, Ram, and Toyota models. Its operating temperature range from -45°C to 100°C allows it to perform reliably in both cold and hot environments.

Compatible Vehicles and Applications

  • Chevrolet Caprice and SS models requiring a 4-rib serpentine belt
  • Jeep Wrangler and Tercel models with accessory drive belt system needs
  • Ram 1500 trucks with K-section serpentine belt requirements
  • Toyota 4Runner, Tacoma, Paseo, and T100 models compatible with this belt

Installation Notes and Tips

  • Verify belt length and rib count against vehicle specifications before installation
  • Inspect pulleys and tensioners for wear to ensure proper belt tension and alignment
  • Use appropriate tools to relieve tension on the belt tensioner during replacement
  • Ensure the belt ribs align correctly with pulley grooves to prevent premature wear

Quality Assurance and Standards Compliance

The Dayco 5040437 serpentine belt complies with SAE J1459 and SAE J2432 standards, confirming its adherence to industry requirements for accessory drive belts. Manufactured with EPDM and aramid reinforcement, it is designed to withstand temperature extremes and resist degradation. While specific warranty details are not provided, Dayco products typically meet rigorous quality control measures to support reliable vehicle operation.

BrandDayco
Part Number5040437
MaterialEpdm, aramid reinforced
Top Width.54
ColorBlack
Effective Length1109.98
Effective Length43.70
Outside Circumference1126.75
Outside Circumference44.36
Rib Quantity4
Cross SectionK-section
Maximum Operating Temperature100
Maximum Operating Temperature212
Minimum Operating Temperature-42.7
Minimum Operating Temperature-45
Rib DepthStandard
Rib ProfileStraight rib
StandardsSae j1459, sae j2432

This part fits 39 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2023JeepWrangler3.6LV6MILD HYBRID EV-GAS (MHEV)Water Pump and Air Conditioning
2022JeepWrangler3.6LV6MILD HYBRID EV-GAS (MHEV)Water Pump and Air Conditioning
2021JeepWrangler3.6LV6MILD HYBRID EV-GAS (MHEV)Water Pump and Air Conditioning
2021Ram15003.6LV6Water Pump and Air Conditioning
2020JeepWrangler3.6LV6MILD HYBRID EV-GAS (MHEV)Water Pump and Air Conditioning
2020Ram15003.6LV6Water Pump and Air Conditioning
2019Ram15003.6LV6Water Pump and Air Conditioning
2017ChevroletCaprice6.0LV8Air Conditioning
2017ChevroletSSAir Conditioning
2016ChevroletCaprice6.0LV8Air Conditioning
2016ChevroletSSAir Conditioning
2015ChevroletCaprice6.0LV8Air Conditioning
2014ChevroletCaprice6.0LV8Air Conditioning
2013ChevroletCaprice6.0LV8Air Conditioning
2012ChevroletCaprice6.0LV8Air Conditioning
2011ChevroletCapriceAir Conditioning
2004ToyotaTacoma2.7LL4Power Steering
2003ToyotaTacoma2.7LL4Power Steering
2002ToyotaTacoma2.7LL4Power Steering
2001ToyotaTacoma2.7LL4Power Steering
2000Toyota4Runner2.7LL4Power Steering
2000ToyotaTacoma2.7LL4Power Steering
1999Toyota4Runner2.7LL4Power Steering
1999ToyotaTacoma2.7LL4Power Steering
1998Toyota4Runner2.7LL4Power Steering
1998ToyotaT1002.7LL4Power Steering
1998ToyotaTacoma2.7LL4Power Steering
1997Toyota4Runner2.7LL4Power Steering
1997ToyotaT1002.7LL4Power Steering
1997ToyotaTacoma2.7LL4Power Steering
1996Toyota4Runner2.7LL4Power Steering
1996ToyotaT1002.7LL4Power Steering
1996ToyotaTacoma2.7LL4Power Steering
1995ToyotaPaseoAir Conditioning and Power Steering
1995ToyotaT1002.7LL4Power Steering
1995ToyotaTacoma2.7LL4Power Steering
1994ToyotaPaseoAir Conditioning and Power Steering
1994ToyotaT1002.7LL4Power Steering
1994ToyotaTercelAir Conditioning and Power Steering

* 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:

4K438

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