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Dayco 89451 Automatic Serpentine Belt Tensioner

(2005-2006 Mercedes-Benz E320; 2003-2006 Dodge Sprinter 2500; 2003-2006 Dodge Sprinter 3500; 2002-2006 Freightliner Sprinter 2500 + 1 more model)

Part of: Dayco Automatic Serpentine Belt Tensioner Assembly

Other options in this family: Dayco 89362 Dayco 89384 Dayco 89688 Dayco 89654 Dayco 89319

Manufacturer

Picture for manufacturer Dayco

Part Number

89451
10 reviews
Sale Price

$81.31

In Stock (10)

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Dayco 89451 Automatic Belt Tensioner is engineered to maintain consistent tension on serpentine belt drive systems, ensuring optimal accessory performance and extended belt life. This premium tensioner features a patented flat spring design that minimizes operating range variations in tension, reducing the risk of premature accessory bearing failure while preventing belt squeal and slippage.

Key Features:

  • Patented flat spring design with Teflon strip wound within for superior abrasion resistance
  • Heavy-duty cast aluminum arm provides exceptional strength and minimal distortion under load
  • Aluminum retainer ring locks spring case and arm together while sealing against corrosion
  • Thermoplastic rubber spring slot plug prevents contamination from dust and debris
  • Rubber O-ring seal protects internal components from dust and grime
  • Lubricated nylon pivot tube bushing and spring bushing ensure quieter operation
  • Zinc-coated mounting bolt resists rust and provides concentric mounting for even tension distribution
  • OE replacement quality for direct fit installation

This tensioner is designed for van applications and is sold individually. Backed by Dayco's limited warranty for reliable performance and peace of mind.

Products specifications

Fits

2005-2006 Mercedes-Benz E320; 2003-2006 Dodge Sprinter 2500; 2003-2006 Dodge Sprinter 3500; 2002-2006 Freightliner Sprinter 2500; 2002-2006 Freightliner Sprinter 3500

Quantity

Sold individually.

Tensioner Pulley Type

Smooth pulley

Part was only available at Autoplicity, shipping was super quick will do business with them again.

Out of all the websites I've used to find my item, this was the lowest cost, and I'm so happy that I found them! Keep up the great work guys!

I was a first time customer, but will definitely visit Autoplicity.com again! Great prices, and fast shipping! Thanks!!

Great Price for the struts i ordered!

Great price

Awesome so far! Hope they ship fast!

Fantastic service and fast shipping! Lowest price on the net for the CAI that I bought!<br><br>This is my new "Go To" website for parts.<br><br>Thanks!

By the time you add in shipping, even the "Rock" can't compare! Thanks!

Looked everywhere for a good price on Warn locking hubs, they were the best price around. Shipped right away.

Best price on a holley carburetor online. I unusually use summit but even the shipping price is less, no handling fees either. I am hearing great things about the shipping so I am hopeful the 69 javelin is back on the road this week! If it works out I will tell all my motor head friends about this site!

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