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Dayco 89665 Automatic Belt Tensioner Assembly

(2010-2014 Ford F-150; 2011-2016 Ford F-250 Super Duty; 2011-2016 Ford F-350 Super Duty)

Part of: Dayco Automatic Belt Tensioner Assembly

Other options in this family: Dayco 89710 Dayco 89397 Dayco 89380 Dayco 89287 Dayco 89390

Manufacturer

Picture for manufacturer Dayco

Part Number

89665
13 reviews
Sale Price

$94.20

3 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Dayco 89665 is a premium automatic accessory drive belt tensioner assembly designed to maintain constant tension on serpentine belt drives. This hydraulic tensioner features advanced engineering that ensures optimal belt performance and extends the service life of your vehicle's accessory drive system.

Key Features:

  • Flat wire spring construction allows internal tension to be concentric, providing constant and consistent tension throughout the belt's life
  • Heavy-duty cast aluminum spring case resists cracking and corrosion while delivering quieter performance
  • PTFE strip wound within the spring resists abrasion and the flat spring is coated to resist rust
  • Deflected arm plate design decreases rotational movement and extends tensioner life
  • Precision locator pin correctly positions the tensioner for accurate installation and withstands maximum drive demands
  • Reduces risk of premature accessory bearing failure from excessive tension and prevents belt noise, slippage, or poor accessory performance from low tension

This tensioner assembly replaces Ford OEM part numbers AL3Z6B209A, AL3Z6B209B, and AL3Z6B209C, as well as NAPA 39179. Engineered with Dayco's 100+ years of expertise in drive system technology, this tensioner is manufactured to outlast conventional aftermarket tensioners and restore quiet, reliable operation to your vehicle's accessory drive system.

Products specifications

Fits

2010-2014 Ford F-150; 2011-2016 Ford F-250 Super Duty; 2011-2016 Ford F-350 Super Duty

Good

This is my first time (but definitely not my last) to use Autoplicity. After doing several searches for the Air Lift helper springs Autoplicity beat everyone by at least 20 dollars. Another nice shock was they have very reasonable shipping rates.

very good so far. will no for sure when i get item

I like your prices on parts and ease of navigating on your site.

Good prices.

Grate

I'm a stickler for finding the best prices on my purchases, while also making sure that the products I buy are legit and not some cheapo knock-offs.<br>I did my homework on the Clutch Stage 2 kit I wanted for my Spec V and found that Autoplicity had the best price anywhere, even a spot where I had 10% off came out to be more expensive.<br><br>I received my Clutch Stage 2 clutch kit pretty quickly (about 1 week) and everything was as expected.<br><br>Overall I would rate Autoplicity a perfect 10, although I did not have to contact their customer service or initiate a return, so the '10' would be on product selection, communication, website experience, and overall feeling that I got the best deal out there.<br><br>Thanks!

great price

Had the part I needed at a reasonable price. Speedy shipping.

Easy on-line order..

I like the amazon checkout.

all went smooth with check out now to see how fast the shipping concludes..

Good so far. Will see on shipping and part. Thanks

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