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Dayco Automatic Belt Tensioner

(23 reviews)
Part # 89257
1 year warranty
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Product Information

Product Details
Part No. 89257
Warranty Details (1 Year Warranty)
The Dayco automatic belt tensioner features Dayco's original, patented flat spring design to provide less operating range variation. It reduces the risk of premature accessory bearing failure due to high tension and lessens the risk of belt noise and slippage – or poor performance caused by low tension. A PTFE string wound within the spring resists abrasion and dampens noise. Dayco's tensioner is also designed with a heavy-duty cast aluminum spring case and arm, which helps resist cracking and fatigue and offers additional strength, lessening the risk of distortion. Additional premium thermoplastic rubber spring slot plugs and rubber O-ring seals help keep contaminants out and zinc coated mounting bolts resist rust.

Product Features:
  • Endures the toughest conditions while promoting quieter performance and longer life
  • Features a steel pivot tube on specific designs for enhanced stability
  • Built to outperform and outlast competitive OE parts
Specifications
Belt Type:
Serpentine

Mounting Type:
Automatic

Pulley Diameter:
76 in

Pulley Material:
Steel

Pulley Type:
Grooved

Pulley Width:
38.1 in
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4.65 out of 5
23 Customer Reviews
100% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
18
4 Stars
4
3 Stars
0
2 Stars
0
1 Star
1
Pros
8
Easy To Install
4
Durable
3
Lightweight
Cons
1
No Improvement In Performance
1
none
Best Uses
6
Replacement
5
Everyday Driving
1
Performance Driving
1
Restoration
Car & Truck
2
Truck Enthusiast
1
Mechanic
Describe Yourself
2
Mechanic
2
Truck Enthusiast
1
Auto Enthusiast
1
Casual Driver
Most Liked Positive Review
Fit well on my F-250 7.3 powestroke
I would have easy given it 5 stars but I don't know how longs its going to last. IT does look well built and was very straight forward to change and it fit perfectly on my f-250 powerstroke
Most Liked Negative Review
Not happy
Poor Quality Parts
Reviewed by 23 Customers
Would buy agaim
Verified Buyer -
Perfect fitment
Not happy
Verified Buyer -
Poor Quality Parts
Would buy again
Verified Buyer -
Works great.
So far so good.
Verified Buyer -
Easy to put on, just have about 800 miles on it so far.
Fits perfectly
Verified Buyer -
Correct part
Displaying Reviews 1 - 5Back to Top
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