Frequently Asked Questions About Kenworth T680 Air Tanks, Wraps & Mounting

Will these air tanks fit my specific year model Kenworth T680?

Our air tanks and mounting hardware are designed to fit Kenworth T680 models from 2013 to present. However, there can be slight variations between model years, particularly in mounting bracket positions. We recommend checking your existing tank dimensions and mounting point locations before ordering. Most standard T680 configurations use either 20" x 8" or 25" x 8" diameter tanks. If you're unsure about compatibility, our customer service team can help verify fitment with your VIN number.

What's the difference between aluminum and steel air tanks, and which should I choose?

Aluminum tanks are lighter (typically 40-50% less weight than steel), resist corrosion better, and help improve fuel economy. Steel tanks are more affordable upfront and highly durable against impacts but require regular inspection for rust. For most T680 applications, we recommend aluminum tanks due to their longevity and weight savings. Steel tanks remain a solid choice for severe-duty applications or budget-conscious buyers who maintain regular inspection schedules.

Do I need special tools or professional installation for air tank replacement?

Basic air tank replacement requires standard hand tools including wrenches, sockets, and potentially an impact driver. The most critical aspect is properly bleeding the air system before removal and testing for leaks after installation. Most experienced mechanics can complete the job in 2-3 hours. Key challenges include accessing mounting bolts in tight spaces and properly torquing fittings to prevent leaks. Always use new O-rings and thread sealant on connections. Professional installation is recommended if you're uncomfortable working with pressurized air systems.

What are tank wraps/covers and are they necessary for my T680?

Tank wraps are protective covers made from either heavy-duty vinyl or polished stainless steel that shield your air tanks from road debris, salt, and weather. While not mandatory, they significantly extend tank life and maintain appearance. Vinyl wraps offer basic protection at an affordable price point, while stainless steel covers provide maximum durability and a premium look. They're especially recommended for trucks operating in harsh winter conditions or those concerned with maintaining resale value.

How do I know when my air tanks need replacement?

Replace air tanks immediately if you notice visible corrosion, pitting, dents deeper than 1/16", or any signs of moisture/oil leaking from the tank body. During regular maintenance, drain tanks daily and listen for excessive moisture discharge, which indicates internal corrosion. Steel tanks typically last 5-7 years while aluminum tanks can exceed 10 years with proper maintenance. Annual professional inspections are recommended, and any tank over 10 years old should be carefully evaluated regardless of appearance.