Dayco 5050370 Serpentine Belt

Brand Dayco 5050370
Position Water Pump
Color Black
Cross Section K-Section
Effective Length 37.01
Effective Length 940.06
Material EPDM, Aramid Reinforced
Maximum Operating Temperature 100
Maximum Operating Temperature 212
Minimum Operating Temperature -45
Minimum Operating Temperature -42.7
Outside Circumference 37.67
Outside Circumference 956.82
Rib Depth Standard
Rib Profile Straight Rib
Rib Quantity 5
Standards SAE J1459, SAE J2432
Top Width .68
Fits Honda, Chrysler, Dodge, Mitsubishi, Eagle, Plymouth, Toyota, Mazda, Ford, and Mercury · 39 vehicles

Aramid-reinforced EPDM. Built for dependable strength and long-lasting belt performance.

Straight-rib profile. Helps maintain smooth, efficient power transfer.

SAE J1459, J2432. Meets recognized industry standards for accessory drive belts.

Cross-references ACDelco 5K370, AutoZone 370K5 and Bando 5PK940 for the same application. See all 38.

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Dayco 5050370 Serpentine Belt Overview

The Dayco 5050370 serpentine belt is built for accessory drive applications that demand stable grip, consistent tracking, and dependable operation across a wide temperature range. Made from EPDM with aramid reinforcement, it is a practical replacement for vehicles that need a 5-rib K-section belt for systems such as the alternator, water pump, power steering, or air conditioning.

This part cross-references Gates 6703 and Continental-ContiTech PK050370 for the same application.

Key Features

  • EPDM construction with aramid reinforcement for durability and belt stability
  • 5-rib K-section profile with straight rib design
  • Black finish with a .68 top width
  • Effective length: 37.01 in. (940.06 mm)
  • Outside circumference: 37.67 in. (956.82 mm)
  • Operating temperature range from -45°F to 212°F
  • Built to SAE J1459 and SAE J2432 standards

Product Details

Dayco 5050370 is a serpentine belt for accessory drive belt system service, with fitments spanning Honda Insight, Chrysler Sebring, Dodge Stratus, Mitsubishi Eclipse, Mitsubishi Galant, Honda Prelude, and other listed applications. It is specified for vehicles without air conditioning in several cases, including 2000-2006 Honda Insight water pump applications and 1992-1996 Honda Prelude alternator applications. The belt’s EPDM compound and aramid reinforcement support consistent performance in everyday engine bay heat and cold cycling.

Use Dayco 5050370 when replacing a worn accessory drive belt on vehicles calling for a 5-rib, K-section belt with the listed dimensions. The part number 5050370 is also referenced in interchange listings for multiple OE and aftermarket numbers, making it easier to match the correct belt for the application.

Common Problems This Belt Can Address

  • Squealing or chirping from a worn serpentine belt
  • Cracking, glazing, or rib wear on the existing belt
  • Loss of accessory drive performance at the alternator, water pump, or power steering system
  • Belt tracking issues caused by age or heat exposure
  • Replacement needs for listed Honda, Chrysler, Dodge, Mitsubishi, Mazda, Toyota, and Ford applications

Installation Notes and Tips

Verify rib count, effective length, and outside circumference before installation. Confirm the vehicle’s accessory drive layout and note application details such as “without air conditioning,” “without power steering,” or “dealer Air-Sankyo comp.” where listed. Inspect pulleys, tensioners, and idlers for wear before installing the new belt, and compare the old belt routing to the service diagram for the exact engine configuration.

Compatible With 2000-2006 Honda Insight, Water Pump; 2005 and 2001 Chrysler Sebring, Alternator and Water Pump; 2005 and 2001 Dodge Stratus, Alternator and Water Pump; 2005 and 2000-2002 Mitsubishi Eclipse, Alternator and Water Pump; 1999-2003 Mitsubishi Galant, Alternator and Water Pump; 1997 and 1994-1996 Mitsubishi Mirage, Power Steering; 1994 Dodge Colt, Power Steering; 1990 Toyota Tercel, Power Steering; 1986-1987 Mazda 626, Air Conditioning; 1985 Honda Accord, Alternator and Water Pump; 1981-1982 Ford Escort, Air Conditioning; 1982 Mercury LN7, Air Conditioning; and 1981-1982 Mercury Lynx, Air Conditioning.

Quality Assurance

Dayco manufactures this belt to SAE J1459 and SAE J2432 standards, with EPDM and aramid reinforcement selected for accessory drive service. The Dayco 5050370 part number is a direct reference for ordering and fitment verification.

This part fits 39 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
2006HondaInsightWater PumpFits vehicles without air conditioning.
2005ChryslerSebring2.4LL4Alternator and Water Pump
2005DodgeStratus2.4LL4Alternator and Water Pump
2005HondaInsightWater PumpFits vehicles without air conditioning.
2005MitsubishiEclipse2.4LL4Alternator and Water Pump
2004HondaInsightWater PumpFits vehicles without air conditioning.
2003HondaInsightWater PumpFits vehicles without air conditioning.
2003MitsubishiGalant2.4LL4Alternator and Water Pump
2002HondaInsightWater PumpFits vehicles without air conditioning.
2002MitsubishiEclipse2.4LL4Alternator and Water Pump
2002MitsubishiGalant2.4LL4Alternator and Water Pump
2001ChryslerSebring2.4LL4Alternator and Water Pump
2001DodgeStratus2.4LL4Alternator and Water Pump
2001HondaInsightWater PumpFits vehicles without air conditioning.
2001MitsubishiEclipse2.4LL4Alternator and Water Pump
2001MitsubishiGalant2.4LL4Alternator and Water Pump
2000HondaInsightWater PumpFits vehicles without air conditioning.
2000MitsubishiEclipse2.4LL4Alternator and Water Pump
2000MitsubishiGalant2.4LL4Alternator and Water Pump
1999MitsubishiGalant2.4LL4Alternator and Water Pump
1996HondaPreludeS2.2LL4AlternatorFits vehicles without air conditioning.
1996MitsubishiMirage1.8LL4Power SteeringFits vehicles without air conditioning.
1995HondaPreludeS2.2LL4AlternatorFits vehicles without air conditioning.
1995MitsubishiMirage1.8LL4Power SteeringFits vehicles without air conditioning.
1994DodgeColt1.8LL4Power SteeringFits vehicles without air conditioning.
1994HondaPreludeS2.2LL4AlternatorFits vehicles without air conditioning.
1994MitsubishiMirage1.8LL4Power SteeringFits vehicles without air conditioning.
1993HondaPreludeS2.2LL4AlternatorFits vehicles without air conditioning.
1992HondaPrelude2.2LL4AlternatorFits vehicles without air conditioning.
1992HondaPrelude2.3LL4AlternatorFits vehicles without air conditioning.
1990ToyotaTercelPower SteeringFits vehicles without air conditioning.
1987Mazda626Air Conditioningwithout power steering
1986Mazda626Air Conditioningwithout power steering
1985HondaAccord1.8LL4Alternator and Water Pump
1982FordEscortAir ConditioningDealer Air-Sankyo Comp.
1982MercuryLN7Air ConditioningDealer Air-Sankyo Comp.
1982MercuryLynxAir ConditioningDealer Air-Sankyo Comp.
1981FordEscortAir ConditioningDealer Air-Sankyo Comp.
1981MercuryLynxAir ConditioningDealer Air-Sankyo Comp.
Directly replaces or cross-references 38 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 5K370AutoZone — 370K5Bando — 5PK940Beck/Arnley — 141-1353Beck/Arnley — 146-050945CARQUEST — K050370Chrysler — 1340A005Continental-ContiTech — PK050370Cummins — 206996Driveworks — 370K5Duralast — 370K5Dynacraft — D1102-6319Freightliner — GT4050370Freshstart — 370K5Gates — 6703Gates — K050370Goodyear — 42453Goodyear — 4050370Honda — 19230-PHM-004Honda — 31110-P12-A020Honda — 31110-PD6-0030Honda — 31110-PY3-0030Honda — 31110P12A020M2Mazda — D593-04-8860-199Mazda — F807-15-908AMighty Distributing System — 5K370Mitsubishi — MD192806Mitsubishi — MD192809Mitsubishi — MD349465Mitsubishi — MD367429NAPA — 25-050370NAPA — 25-70936Pirelli — 370K5Toyota — 99365-50940V&W — 370K5VME — M12003983White — V1090161White — V1090923