Dayco 5040437 Serpentine Belt

Part Number
Serpentine Belt

Fits: 94-95 Toyota Paseo, 94-98 Toyota T100, 94 Toyota Tercel, 95-04 Toyota Tacoma, 96-00 Toyota 4Runner, 11-17 Chevrolet Caprice, 16-17 Chevrolet SS

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Estimated Ship Date: 1 Business Day or Less
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 Length1109.98
Effective Length43.70
MaterialEPDM, Aramid Reinforced
Maximum Operating Temperature100
Maximum Operating Temperature212
Minimum Operating Temperature-45
Minimum Operating Temperature-42.7
Outside Circumference1126.75
Outside Circumference44.36
Rib DepthStandard
Rib ProfileStraight Rib
StandardsSAE J1459, SAE J2432
Top Width.54



  • ACDelco: 4K438
  • Toyota: 99364-81110
  • Gates: K040438
  • Toyota: 99364-21110
  • Duralast: 437K4
  • Driveworks: 437K4
  • Toyota: 90080-91125
  • General Motors: 92244381
  • CARQUEST: K040438
  • Bando: 4PK1110
  • Freshstart: 435K4
  • Goodyear: 4040435
  • NAPA: 25-040438


  • 1996-2000 Toyota 4Runner - Position: Power Steering
  • 1994-1994 Toyota Tercel - Position: Air Conditioning and Power Steering
  • 2016-2017 Chevrolet SS - Position: Air Conditioning
  • 1994-1995 Toyota Paseo - Position: Air Conditioning and Power Steering
  • 1994-1998 Toyota T100 - Position: Power Steering
  • 2011-2017 Chevrolet Caprice - Position: Air Conditioning
  • 1995-2004 Toyota Tacoma - Position: Power Steering
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