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DAYCO® POLY RIB® W-Profile Serpentine Belts are the most innovative advancement in serpentine belt design in more than 30 years. Developed through extensive laboratory and actual road mileage testing, this unique rib profile EPDM belt has been engineered to conform to high mileage, worn or misaligned drives and help eliminate noisy belt conditions.

Constructed with aramid-reinforced EPDM compounds, the Dayco W Poly Rib serpentine belt delivers more than just OE-required quality. It delivers the solution to troublesome drive problems.

POLY RIB W-Profile Benefits Video:

Rib Quantity4
Top Width (in).54
Effective Length (in)34.50
Effective Length (mm)876.30
Outside Circumference (in)35.16
Outside Circumference (mm)893.07
Rib ProfileW Profile
MaterialEPDM, Aramid Reinforced
Cross SectionK-Section
Rib DepthStandard
StandardsSAE J1459, SAE J2432
Minimum Operating Temperature (C)-42.7
Maximum Operating Temperature (C)100
Minimum Operating Temperature (F)-45
Maximum Operating Temperature (F)212
Alternate/OEM Part Number(s): 04668380AA, 04668380AC, 04668380AD, 04668380AE, 04668380AF, 1172059S, 11720B4800, 11720V3701, 11720V7300, 12553260, 2521223000, 2521223021, 38920PM30032, 38920PM30040, 4298083, 4612229C, 56992P300030, 7700709398, 7700729330, 9008091093, 900809109300, 9008091093A, 9008091212, 9091602268, 9091602269, 9091602365, 9091602386, 90916A2009, 9184008703, 9184008709, 9936430080, 99919218750, B36615908, B3C718381, B3C718381B, B63015907A, E7GZ8620A

Warranty Information:
12 Months/12,000 Miles