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Dayco 89259 No Slack Automatic Belt Tensioner

(Chevrolet Silverado 2500 HD 2002-16, Silverado 3500 HD 2007-16, Express 3500 2006-16, Express 2500 2006-16, Silverado 2500 2002-12 + 10 more models)

Part of: Dayco No Slack Automatic Belt Tensioner Assembly

Other options in this family: Dayco 89372 Dayco 89374 Dayco 89369 Dayco 89321 Dayco 89251

Manufacturer

Picture for manufacturer Dayco

Part Number

89259
8 reviews
Sale Price

$72.48

2 left at this price

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Usually delivered within 2 days

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Product Details

The Dayco 89259 No Slack Automatic Belt Tensioner is engineered to maintain optimal belt tension throughout the life of your accessory drive system. Designed specifically for Chevrolet and GMC vehicles equipped with 6.6L Duramax diesel engines, this precision-manufactured tensioner eliminates belt slack and ensures consistent performance under demanding conditions.

Key Features:

  • No Slack technology maintains constant belt tension for reliable accessory drive operation
  • Automatic tensioning design compensates for belt wear and stretch over time
  • Direct-fit replacement for Chevrolet and GMC 6.6L diesel applications
  • Heavy-duty construction built to withstand high-torque diesel engine demands
  • OE-quality engineering ensures proper fit and long service life
  • Reduces belt noise, slippage, and premature wear

This automatic belt tensioner is a critical component for maintaining proper serpentine belt operation, ensuring that alternators, water pumps, power steering pumps, and air conditioning compressors receive consistent power. Dayco's proven No Slack design provides superior performance in both everyday driving and heavy-duty towing conditions.

Products specifications

Fits

Chevrolet Silverado 2500 HD 2002-16, Silverado 3500 HD 2007-16, Express 3500 2006-16, Express 2500 2006-16, Silverado 2500 2002-12, Silverado 3500 2002-12, Express 4500 2009-13; GMC Sierra 2500 HD 2002-16, Sierra 3500 HD 2007-16 + 6 more models

Quantity

Sold individually.

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