Motor Age Tech Tip - Litens Aftermarket Belt Drive System Components

March 10, 2025

Scott Brown explains how OAPs and OADs reduce noise, vibration and harshness, while explaining the necessity to replace like with like.

Scott Brown

In this Tech Tip, sponsored by Litens Aftermarket, Scott Brown traces the evolution of automotive belt drive systems. From the basic single belt setups to today's complex serpentine systems, Brown discusses how these systems have advanced over the years to become more efficient and durable.

Discover how innovations like overrunning alternator pulleys (OAPs) and overrunning alternator decouplers (OADs) have significantly reduced noise, vibration, and harshness (NVH), enhancing both performance and passenger comfort. Brown also explores the role of automatic tensioners in maintaining optimal belt tension, which prevents premature wear and extends the life of the entire system. This video will equip you with the knowledge to service these systems more effectively, ensuring your customers benefit from quieter, smoother, and longer-lasting vehicle operation. Stay tuned for a deep dive into the advancements that have made modern drive belt systems a marvel of automotive engineering.

About the Author

Scott Brown | Founder - Diagnostic Network

Scott is an ASE Master Certified Automobile Technician with L1, L3, & L4 credentials and has over 39 years of professional service industry experience. As an independent shop owner in Southern California and with his engagement at various levels of within our industry, he continuously strives to move the industry forward through networking, education, communications, and training. Scott is a founder of the Diagnostic Network (https://diag.net/) which was born in 2018 after he retired after 22 years at iATN, where he served as company president.

Brown is also the host of Professional Tool and Equipment News (PTEN) and VehicleServicePros.com podcast, Torque Factor. The podcast addresses the latest automotive service technologies while focusing on expanding knowledge and awareness around tools, equipment, education, and industry trends.