Dayco 5040275 Serpentine Belt

Part Number
Serpentine BeltFits: 81-90 Ford Escort, 81-87 Mercury Lynx, 82-88 Ford EXP, 82-83 Mercury LN7, 87-89 Nissan Pulsar NX, 87-89 Nissan Stanza, 87-88 Subaru Justy, 95-98 Acura TL
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Designed for high mileage multiple-accessory drivesthe Dayco® “W” profile belt (patent pending) is the most innovative advancement in multi-rib belt design in over 25 years. Developed through extensive laboratory and actual road mileage testing, this unique rib profile has been specifically Dayco® engineered to conform to high mileage, worn or misaligned drives without a sacrifice in quiet, long-lasting performance. The "W" profile cut into the tip of each rib makes the tip more flexible and eliminates belt chirp when the belt enters a worn or misalligned pulley. Constructed with Aramid reinforced EPDM compounds, the Dayco® “W” profile belt delivers more than OE required delivers the solution to troublesome drive problems. Dayco® Poly-Rib® Belts meet or exceed SAE J1459 and SAE J2432 specifications.

BRAND: Dayco




Cross SectionK-Section
Effective Length27.56
Effective Length700.03
MaterialEPDM, Aramid Reinforced
Maximum Operating Temperature100
Maximum Operating Temperature212
Minimum Operating Temperature-42.7
Minimum Operating Temperature-45
Outside Circumference716.79
Outside Circumference28.22
Rib DepthStandard
Rib ProfileStraight Rib
StandardsSAE J1459, SAE J2432
Top Width.54



  • NAPA: 25-70699
  • Ford: E1EE-8620-JA
  • Autopar: FB84275
  • ACDelco: 4K275
  • Ford: E1FZ-8620-K
  • Ford: E2EE-8620-EA
  • Honda: 56992-P1R-004
  • Chrysler: MD185130
  • Duralast: 275K4
  • Bando: 4PK700
  • V&W: 275K4
  • Gates: K040275
  • Honda: 56992-PV3-J01
  • Subaru (cars): 80921-4010
  • Beck/Arnley: 141-1324
  • Motorcraft: JK4-282
  • ContiTech: PK040275
  • Chrysler: MD300587
  • Pirelli: 275K4
  • Datsun/Nissan: 11720-D4202
  • NAPA: 25-040275
  • Mitsubishi: MD186130
  • Freshstart: 275K4
  • Driveworks: 275K4
  • Atlas: 4275
  • AutoZone: MV474
  • AutoZone: K2754
  • CARQUEST: K040275
  • Honda: 56992-P1R-003
  • Atlas: 4K0275
  • Mighty: 4K275
  • Goodyear: 4040275


  • 1987-1989 Nissan Pulsar NX - Position: Air Conditioning To Alternator
  • 1987-1987 Nissan Stanza - Position: Air Conditioning and Alternator
  • 1987-1988 Subaru Justy - Position: Alternator
  • 1988-1989 Nissan Stanza - Position: Air Conditioning To Alternator
  • 1982-1983 Mercury LN7 - Position: Power Steering
  • 1981-1987 Mercury Lynx - Position: Power Steering
  • 1981-1990 Ford Escort - Position: Power Steering
  • 1982-1988 Ford EXP - Position: Power Steering
  • 1995-1998 Acura TL - Position: Power Steering
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