Frequently Asked Questions About Mack RD Truck Air Tanks, Wraps & Mounting

What size air tanks fit my Mack RD model, and how do I determine the correct capacity?

Mack RD trucks typically accommodate air tanks ranging from 11" to 13" in diameter, with common sizes being 11" x 37", 12" x 33", and 13" x 31". To determine the correct size for your truck, check the data plate on your existing tank or measure the mounting bracket spacing. Most RD models from 1988-2007 use standard 11" diameter tanks, while newer models may accommodate larger sizes. Always verify your truck's air system requirements and available mounting space before ordering.

Will these air tank mounting brackets work with my specific Mack RD year model?

Our mounting brackets are designed to fit Mack RD models from 1988 through 2007, including RD600, RD688, and RD690 series. The mounting hole patterns are standardized across these years, but slight variations may exist in frame rail spacing. For trucks with custom frames or modifications, measure your frame rail width and compare it to our bracket specifications. Pre-2000 models may require additional adapters for certain aftermarket tanks.

How difficult is it to install air tank wraps, and will they affect tank performance?

Air tank wraps are relatively straightforward to install and typically take 30-45 minutes per tank. Clean the tank surface thoroughly, then apply the wrap starting from one end, smoothing out air bubbles as you go. Quality wraps won't affect air tank performance or heat dissipation when properly installed. They actually help protect against corrosion and road debris. Most wraps are designed with ventilation patterns to ensure proper airflow around the tank.

What's the difference between aluminum and steel air tanks for my Mack RD?

Aluminum tanks weigh approximately 40% less than steel equivalents and won't rust, making them ideal for weight-conscious applications or harsh environments. Steel tanks are typically 20-30% less expensive and offer better impact resistance. Both materials meet DOT requirements when properly certified. Aluminum tanks require stainless steel mounting hardware to prevent galvanic corrosion, while steel tanks can use standard hardware.

Do I need special mounting hardware when replacing factory air tanks with aftermarket options?

Most aftermarket tanks use the same mounting configurations as OEM units, but you may need updated hardware depending on your selection. Check if your new tanks require specific bracket styles - some use strap-style mounts while others use cradle mounts. Always replace mounting bolts when installing new tanks, using Grade 8 hardware for steel tanks or stainless steel hardware for aluminum tanks. Include rubber isolators between the tank and brackets to reduce vibration and prevent wear.