Isolators | Grommets
Proper charge air cooler isolators and grommets are vital to keeping your heavy-duty cooling system secure and efficient. These components act as vibration dampeners, absorbing engine movement and preventing costly damage to your charge air cooler (CAC). At American Radiator, we stock a full line of isolators, bushings, rubber grommets, and mounting kits designed to fit leading truck brands including Freightliner, Kenworth, Peterbilt, Mack, Volvo, and Western Star.
By using the correct CAC grommets and isolators, you improve airflow stability, protect against boost leaks, and extend the life of your intercooler system. Whether you’re replacing worn-out rubber supports or installing a brand-new aftermarket charge air cooler, our direct-fit parts deliver OEM-quality performance at competitive prices.
American Radiator is your trusted source for heavy-duty truck cooling parts, offering Famous Same Day Shipping, expert technical support, and repair services for added value. If you’re asking, “What are charge air cooler isolators and why do they matter?” — they are the essential link that keeps your CAC securely mounted and operating at peak performance.
Call 877-203-4572 to find the right isolators and grommets for your truck application today.
What are isolators and grommets used for in charge air cooler systems?
Isolators and grommets help mount the cooler securely while absorbing vibration, movement, and thermal expansion to protect connections from stress and fatigue.
What materials are isolators and grommets made from?
They’re commonly made from rubber, silicone, EPDM, or hybrid elastomers — materials that resist heat, ozone, oil, and mechanical wear to maintain integrity over time.
How do I choose the correct isolator or grommet for my setup?
Match the diameter of the mounting post, the thickness needed, the hardness (durometer), and the expected travel or compression. Use OEM specs or measure the existing parts for best fit.
Can I use any isolator or grommet from a catalog, or do I need an exact match?
While some universal types exist, selecting one that matches or closely approximates the OEM dimensions and material characteristics is best to ensure vibration control and longevity.
How often should I inspect or replace isolators and grommets?
Inspect them during regular maintenance intervals or when disassembling front-end or cooling components. Replace if you see cracking, hardening, deformation, or loss of elasticity to prevent future damage.