Part #: 5040385

Dayco 5040385 Serpentine Belt

Air Conditioning and Idler
⚙️ 99 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Acura, Chrysler, Dodge, Mitsubishi, Eagle, Ford, Hyundai, Subaru, Mercury, Plymouth, Honda, and Mazda, NSX, Sebring, Stratus, Eclipse, Talon, Galant, Aspire, Elantra, Justy, Capri, Colt, Mirage, Vista, Prelude, Sonata, Summit, Tracer, 323, Cordia, and Tredia
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Durable Dayco Serpentine Belt for Multiple Vehicle Models

The Dayco 5040385 serpentine belt is engineered for reliable performance in a range of vehicles including Acura, Chrysler, Dodge, Ford, Honda, Hyundai, Mazda, Mercury, and Mitsubishi models. Designed with EPDM and aramid reinforcement, this belt offers durability and consistent operation under various temperature conditions.

  • Material: EPDM with aramid reinforcement for enhanced strength
  • Top Width: 0.54 inches
  • Effective Length: 38.58 inches (979.94 mm)
  • Outside Circumference: 39.24 inches (996.70 mm)
  • Rib Quantity: 4 ribs with a straight rib profile
  • Cross Section: K-section with deep rib depth
  • Operating Temperature Range: -45°C to 212°F (-42.7°C to 100°C)
  • Meets SAE J1459 and SAE J2432 standards

Technical Details and Construction

The Dayco 5040385 serpentine belt is constructed from EPDM rubber combined with aramid fibers, providing resistance to heat, wear, and stretching. Its 4-rib K-section design with a deep rib profile ensures optimal grip and power transmission to accessory components. The belt’s effective length of approximately 38.58 inches and outside circumference near 39.24 inches make it suitable for specific accessory drive belt systems. This belt maintains performance across a wide temperature range, from as low as -45°C to a maximum of 212°F, supporting reliable operation in diverse climates.

Compatible Vehicles and Applications

This serpentine belt is compatible with various models from Acura, Chrysler, Dodge, Ford, Honda, Hyundai, Mazda, Mercury, and Mitsubishi. Notable compatible models include the Acura NSX and Prelude, Chrysler Sebring and Stratus, Dodge Aspire and Colt, Ford Capri and Tracer, Honda Prelude, Hyundai Elantra and Sonata, Mazda MX-3, Mercury Capri, and Mitsubishi Eclipse and Galant. The Dayco 5040385 is designed to replace worn or damaged belts in these vehicles’ accessory drive systems.

  • Replaces worn or cracked serpentine belts
  • Prevents slipping and squealing noises
  • Restores proper accessory drive function
  • Helps maintain alternator, power steering, and AC performance
  • Reduces risk of belt failure under extreme temperatures

Installation Notes and Tips

When installing the Dayco 5040385 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 avoid premature belt wear or slippage. Use a belt tension gauge if available, and verify alignment of all pulleys. Replacement intervals should follow manufacturer recommendations or when visible signs of wear appear.

Quality Assurance and Standards

The Dayco 5040385 serpentine belt meets SAE J1459 and SAE J2432 standards, ensuring compliance with industry requirements for durability and performance. Manufactured with reinforced EPDM material, this belt is designed to withstand high temperatures and resist degradation. While specific warranty details are not provided, Dayco products typically adhere to strict quality control processes to support reliable operation in automotive accessory drive systems.

BrandDayco
Part Number5040385
ColorBlack
Cross SectionK-Section
Effective Length38.58
Effective Length979.94
MaterialEPDM, Aramid Reinforced
Maximum Operating Temperature100
Maximum Operating Temperature212
Minimum Operating Temperature-45
Minimum Operating Temperature-42.7
Outside Circumference39.24
Outside Circumference996.70
Rib DepthDeep
Rib ProfileStraight Rib
Rib Quantity4
StandardsSAE J1459, SAE J2432
Top Width.54

This part fits 99 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005AcuraNSX3.0LV6Air Conditioning and Idler
2005AcuraNSX3.2LV6Air Conditioning and Idler
2004AcuraNSX3.0LV6Air Conditioning and Idler
2004AcuraNSX3.2LV6Air Conditioning and Idler
2003AcuraNSX3.0LV6Air Conditioning and Idler
2003AcuraNSX3.2LV6Air Conditioning and Idler
2003ChryslerSebring2.7LV6Power Steering
2003DodgeStratus2.7LV6Power Steering
2002AcuraNSX3.0LV6Air Conditioning and Idler
2002AcuraNSX3.2LV6Air Conditioning and Idler
2002ChryslerSebring2.7LV6Power Steering
2002DodgeStratus2.7LV6Power Steering
2001AcuraNSX3.0LV6Air Conditioning and Idler
2001AcuraNSX3.2LV6Air Conditioning and Idler
2001ChryslerSebring2.7LV6Power Steering
2001DodgeStratus2.7LV6Power Steering
2000AcuraNSX3.0LV6Air Conditioning and Idler
2000AcuraNSX3.2LV6Air Conditioning and Idler
1999AcuraNSX3.0LV6Air Conditioning and Idler
1999AcuraNSX3.2LV6Air Conditioning and Idler
1999MitsubishiEclipse2.4LL4Alternator and Water Pump
1999MitsubishiEclipse2.0LL4Alternator and Water Pump
1998AcuraNSX3.0LV6Air Conditioning and Idler
1998AcuraNSX3.2LV6Air Conditioning and Idler
1998MitsubishiEclipse2.4LL4Alternator and Water Pump
1998MitsubishiEclipse2.0LL4Alternator and Water Pump
1998MitsubishiGalantAlternator and Water Pump
1997AcuraNSX3.0LV6Air Conditioning and Idler
1997AcuraNSX3.2LV6Air Conditioning and Idler
1997FordAspireAir Conditioning and Idlerw/P.S., Dealer Air
1997MitsubishiEclipse2.0LL4Alternator and Water Pump
1997MitsubishiGalantAlternator and Water Pump
1996AcuraNSXPower Steering
1996AcuraNSXAir Conditioning and Idler
1996FordAspireAir Conditioning and Idlerw/P.S., Dealer Air
1995AcuraNSXAir Conditioning and Idler
1995FordAspireAir Conditioning and Idlerw/P.S., Dealer Air
1995HyundaiElantra1.6LL4Alternator and Water Pump
1994AcuraNSXPower Steering
1994AcuraNSXAir Conditioning and Idler
1994FordAspireAir Conditioning and Idlerw/P.S., Dealer Air
1994HyundaiElantra1.6LL4Alternator and Water Pump
1994MercuryCapriAir Conditioning and Power SteeringFits dealer air vehicles only
1994MercuryCapriAir Conditioning and Power SteeringSerpentine Belt for vehicles with Factory Air
1993AcuraNSXAir Conditioning and Idler
1993HyundaiElantra1.6LL4Alternator and Water Pump
1993MercuryCapriAir Conditioning and Power Steering
1992AcuraNSXAir Conditioning and Idler
1992HyundaiElantraAlternator and Water Pump
1992MercuryCapriAir Conditioning and Power Steering
1992MitsubishiMirage1.6LL4Alternator and Water Pump
1991AcuraNSXAir Conditioning and Idler
1991DodgeColt2.0LL4Alternator and Water Pump
1991HondaPrelude2.0LL4Power Steering
1991HondaPrelude2.1LL4Power Steering
1991HyundaiSonata2.4LL4Alternator and Water Pump
1991MercuryCapriAir Conditioning and Power Steering
1991MitsubishiMirage1.6LL4Alternator and Water Pump
1990DodgeColt1.6LL4Alternator and Water Pump
1990DodgeColt2.0LL4Alternator and Water Pump
1990HondaPrelude2.0LL4Power Steering
1990HondaPrelude2.1LL4Power Steering
1990HyundaiSonata2.4LL4Alternator and Water Pump
1990MercuryTracerAir Conditioning and Power Steering
1989DodgeColt2.0LL4Alternator and Water Pump
1989DodgeColt1.6LL4Alternator and Water Pump
1989HondaPreludePower Steering, Air Conditioning and Idler
1989HyundaiSonataAlternator and Water Pump
1989Mazda323Air Conditioning and Power Steering
1989MercuryTracerAir Conditioning and Power Steering
1989MitsubishiMirage1.6LL4Alternator and Water Pump
1988DodgeColt2.0LL4Alternator and Water Pump
1988HondaPreludePower Steering
1988Mazda323Air Conditioning and Power Steering
1988MercuryTracerAir Conditioning and Power Steering
1988MitsubishiCordia2.0LL4Alternator and Water Pump
1988MitsubishiCordia1.8LL4Alternator and Water Pump
1988MitsubishiTredia2.0LL4Alternator and Water Pump
1988MitsubishiTredia1.8LL4Alternator and Water Pump
1987DodgeColt2.0LL4Alternator and Water Pump
1987Mazda323Air Conditioning and Power Steering
1987MercuryTracerAir Conditioning and Power Steering
1987MitsubishiCordia2.0LL4Alternator and Water Pump
1987MitsubishiCordia1.8LL4Alternator and Water Pump
1987MitsubishiGalantAlternator and Water Pump
1987MitsubishiTredia2.0LL4Alternator and Water Pump
1987MitsubishiTredia1.8LL4Alternator and Water Pump
1986DodgeColt2.0LL4Alternator and Water Pump
1986MitsubishiCordia2.0LL4Alternator and Water Pump
1986MitsubishiCordia1.8LL4Alternator and Water Pump
1986MitsubishiGalantAlternator and Water Pump
1986MitsubishiTredia2.0LL4Alternator and Water Pump
1986MitsubishiTredia1.8LL4Alternator and Water Pump
1985DodgeColt2.0LL4Alternator and Water Pump
1985MitsubishiCordia2.0LL4Alternator and Water Pump
1985MitsubishiCordia1.8LL4Alternator and Water Pump
1985MitsubishiGalantAlternator and Water Pump
1985MitsubishiTredia2.0LL4Alternator and Water Pump
1985MitsubishiTredia1.8LL4Alternator and Water Pump

* 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:

4K3844K385

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