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Staff Pick Pai 680331 Detroit Diesel A4722001670 New Belt Tensioner (dd13 / Dd15) Save 85% Now [8LHDold0]

$45.99 $147.99 -69%

PAI 680331 Detroit Diesel Belt Tensioner Introducing the PAI 680331 Detroit Diesel Belt Tensioner, a top-of-the-line replacement part designed specifically for Series DD13 and DD15 engines. This new belt tensioner, with OEM reference Detroit Diesel A

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Staff Pick Pai 680331 Detroit Diesel A4722001670 New Belt Tensioner (dd13 / Dd15) Save 85% Now [8LHDold0]

PAI 680331 Detroit Diesel Belt Tensioner

Introducing the PAI 680331 Detroit Diesel Belt Tensioner, a top-of-the-line replacement part designed specifically for Series DD13 and DD15 engines. This new belt tensioner, with OEM reference Detroit Diesel A4722001670 and its counterparts, is crafted to ensure optimal performance and reliability for your vehicle. Engineered for easy installation, this Dayco tensioner boasts a 2-piece design, significantly reducing installation time compared to the OEM design. Don't miss out on the convenience and efficiency this product brings to your vehicle maintenance routine.

Product Details and Benefits

The PAI 680331 Belt Tensioner is a premium aftermarket part, proudly manufactured in the U.S.A. to meet the highest quality standards. As an ISO9001 certified manufacturer, PAI Industries is committed to providing customers with a product that they can trust. This belt tensioner is also available in a remanufactured version as 680331EX, offering a cost-effective solution without compromising on quality. Here are some key benefits:
  • Enhanced Performance: The Dayco tensioner design ensures optimal belt tension, leading to smoother engine operation and reduced wear and tear.
  • Easy Installation: The 2-piece design allows for a much faster and easier installation process, saving you time and effort.
For any inquiries or to confirm compatibility with your vehicle and engine, please feel free to contact us.

Warranty and Assurance

PAI Industries stands behind the quality of its products with a range of warranty options. Depending on the category, customers can enjoy either a 1-Year, 2-Year, or 3-Year Unlimited Mileage Warranty. This assurance is part of our commitment to customer satisfaction and product reliability. When you choose the PAI 680331 Belt Tensioner, you are selecting a part that is backed by our industry-leading warranty. For more information on our warranty categories and the corresponding logos, please refer to the warranty section. Rest assured, your investment in this high-quality belt tensioner is protected.

What Our Customers Say

January 24, 2026

Absolutely no complaints!

A great product that is well worth having around for sure.

- Lludd E..

January 24, 2026

Absolutely no complaints!

This is a very well-made, and a very, very fine tool.

- Hafgan F..

January 24, 2026

Absolutely no complaints!

I'm very satisfied with my final choice and my decision for it.

- Lludd N..

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