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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27
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Description
Dayco Automatic Serpentine Belt Tensioner Main Drive Belt 08-10 Ford 6.4L PowerstrokeKeep your 20082010 Ford 6. 4L Powerstroke running strong with the Dayco Automatic Serpentine Belt Tensioner for the main drive belt is engineered for durability, quiet performance, and lasting reliability. Daycos patented flat spring design minimizes tension fluctuations, reducing the risk of premature accessory bearing failure from over tension and eliminating belt noise, slippage, or poor performance from a lack of tension. Inside the spring, a PTFE
Keep your 2008–2010 Ford 6.4L Powerstroke running strong with the Dayco Automatic Serpentine Belt Tensioner for the main drive belt is engineered for durability, quiet performance, and lasting reliability.
Dayco’s patented flat spring design minimizes tension fluctuations, reducing the risk of premature accessory bearing failure from over-tension and eliminating belt noise, slippage, or poor performance from a lack of tension. Inside the spring, a PTFE string helps dampen vibration and resists abrasion for quieter operation. Constructed with a rugged cast aluminum case and arm, this tensioner resists fatigue and cracking even under tough conditions. Features like a steel pivot tube, thermoplastic rubber spring slot plugs, rubber O-ring seals, and zinc-coated mounting bolts all help resist wear and corrosion.
Built to outperform OE specs, this tensioner is an ideal replacement for maintaining your truck's performance and reliability.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
protection plan is easy.
The protection plan worked on my coffee pot. It was just over 14 months and started to leak. I first called amazon and they sent me a link to the protection plan. It was very easy to use. I received a Amazon gift card instead of a replacement. The price of the coffee pot had increased so you will receive the lower option. I did receive the total cost of the pot at the time I purchased it.
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Reviewed in the United States on January 18, 2026
★★★★★ 5
Great price & works fast.
Compact and fast - I love it! Could not beat the price and it's faster than my Food Saver!
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Reviewed in the United States on April 17, 2026
★★★★★ 5
Protection Plan
The process was easy and flawless
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Reviewed in the United States on June 1, 2026
★★★★★ 5
It is worth purchasing a Protection Plan on an unfamiliar item
Bought a 3-year protection plan for a nut milk maker machine for $5.99. It was a fairly new kitchen item in our household and we were not familiar with the brand. So, I bought the plan for a piece (peace) of mind. The machine worked nicely for about 18-20 months with daily use until it tripped the circuit outlet.
My initial chat with Asurion did not go as I expected due to discrepancy on their end as they see a protection plan for the nut milk maker as a sporting goods valued between $100-$199, not as a kitchen item valued between $30-$39.99. ( I had bought 3 different protection plan on th same day for multiple items purchased on Prime Days). They were looking at a different plan and I was unable to get them to "scroll over" to the appropriate protection plan.
I tried again on a different day during the first hour of their contact hours and had a cheerful Asurion agent who was able to find the appropriate kitchen item protection plan. It was a simple and thorough conversation and transaction. I was refunded within hours after I packed up and dropped off the damaged item out to UPS.
Moral of the story: Asurion Protection Plan is worth it and contact them at the start of their first day shift, not at the end of their evening shift.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Warranty Plan
Hop I won’t have to use the warranty but it was reasonably priced.
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Reviewed in the United States on April 21, 2026