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Dayco No Slack Automatic Belt Tensioners

4.33 out of 5 stars 33 Customer Reviews

Dayco No Slack automatic belt tensioners can resolve belt squeal, improper tracking, or an accessory that has stopped working completely. Featuring "flat spring" technology, these tensioners allow for an increase in torque to be transmitted to the belt when needed, compensating for stretch and wear, while maintaining constant tension throughout the life of your belt. They are built with tough, long-lasting cast aluminum housings and arms, steel locator pins, and arm plates. Engineered to outperform and outlast OEM parts, take up the slack with Dayco No Slack automatic belt tensioners.

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Results 1 - 7 of 7

HD TENSIONER, AUTOMATIC BELT TENSIONER, HD, DAYCO

Part Number: DAC-89947

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

BELT TENSIONER HD

Part Number: DAC-89489

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

AUTOMATIC BELT TENSIONER, HD, DAYCO

Part Number: DAC-89499

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Drive Belt Tensioner Assembly, Bluebird, Freightliner, Ford, Thomas,Each

Part Number: DAC-89444

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Accessory Belt Tensioners, No Slack Automatic Belt Tensioners, Serpentine, 12-rib, Fan Belt Tensioner, International, 15.2L Diesel, Each

Part Number: DAC-89468

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Drive Belt Tensioner Assembly

Part Number: DAC-89450

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Drive Belt Tensioner Assembly

Part Number: DAC-89459

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

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