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(888) 312-8812 Login SignupAUTOMATIC BELT TENSIONER, HD, DAYCO
The Dayco Belt Tensioner manages serpentine-belt path control through an automatic spring-loaded arm and a 74 mm pulley that stays aligned with modern accessory-drive layouts. Its construction helps keep belt tracking smooth across fluctuating engine speeds, supporting alternators, pumps, and compressors without abrupt flutter or slack. The pivot mechanism is arranged to withstand repeated directional changes as the belt loads and unloads throughout each drive cycle. The pulley surface provides consistent rotation quality, allowing the belt ribs to move cleanly during long-duration operation. Installation is straightforward thanks to the Dayco 89482’s standard mounting footprint and accessible fastener layout.
| Type | Automatic |
| Direction | Counter Clock Wise |
| Belt Type | Serpentine |
| Number of Pulleys | 1 |
| Pulley 1 Diameter | 74 mm |
| Pulley 1 Flat | Y |
| Pulley 1 Width | 39.25 mm |
| Pulley 1 Diameter (mm) | 74 |
| Pulley 1 Width (mm) | 39.25 |
| Belt Type | Serpentine |
| Country of Origin (Primary) | US |
| Harmonized Tariff Code (Schedule B) | 8708998180 |
| UPC | 00036687813480 |
| Brand | Part Number |
|---|---|
| 4 SEASONS | 45828 |
| 4-SEASONS | 45828 |
| AC DELCO | 38513 |
| ACDELCO | 38513 |
| BANDO | 680071 |
| CARQUEST | 38513 |
| CASE NEW HOLLAND | 87326915 |
| CNH | 87326915 |
| CONTINENTAL AG | 49513, 49028 |
| CUMMINS | 3911621, 3922549, 3922901, 3925625, 3928748, 3934719, 3934820, 3934823, 3934824, 3936206, 3936207, 3936208, 3936209, 3937556, 3973824, 3973825, 3973826, 3976832, 4063950, 4063951, 5333478 |
| Continental Elite | 49513 |
| DYNACRAFT | D1186-2510 |
| Duralast | 89482 |
| FRESH START | 49513 |
| GATES | 38513, 38076 |
| GOODYEAR | 49513 |
| GOODYEAR BELTS | 55181 |
| KOMATSU | 6275-61-4500, 6275-61-450E, 6731-61-4141 |
| LITENS | 910513A |
| NAPA | 38513 |
| NAVISTAR | FLT689414 |
| SKF | VKM910513 |
| TENDECO | 910513 |
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