Frequently Asked Questions About Hino 238-338 Truck Air Tanks, Wraps & Mounting

Will these air tanks fit my specific Hino 238 or 338 model year?

Our air tanks are designed to fit Hino 238 and 338 models from 2005 to present. However, there were minor frame variations between 2008-2011 models that may require different mounting brackets. We recommend checking your VIN or calling our tech support at 1-888-875-2425 to confirm exact fitment for your truck's year and configuration.

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

Aluminum tanks weigh approximately 40% less than steel equivalents and won't rust, making them ideal for weight-sensitive applications and coastal environments. Steel tanks cost about 30% less upfront and handle impact better, but require regular inspection for corrosion. Most Hino 238-338 owners choose aluminum for the weight savings and longevity, especially if running multiple tanks.

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

Basic installation requires standard hand tools, a drill with metal bits, and ideally an air ratchet. The mounting process typically takes 2-3 hours per tank. Critical factors include proper bracket alignment to avoid frame stress and ensuring air lines have adequate slack for suspension travel. While many operators handle installation themselves, improper mounting can cause dangerous air system failures, so professional installation is recommended if you're not experienced with air brake systems.

What size air tank should I choose for my Hino 238 or 338?

Standard Hino 238-338 trucks come with 20-gallon tanks, but many operators upgrade to 25 or 30-gallon units for better air capacity, especially when running air-hungry accessories like air seats or frequent trailer connections. Measure your available frame space first - the area between the cab and first cross-member typically accommodates up to 30-gallon round tanks. Remember that larger tanks add weight and may require relocating other components.

Are air tank wraps/covers necessary, and which material works best?

Tank wraps aren't required but significantly extend tank life by preventing road debris damage and reducing corrosion from salt and moisture. Stainless steel wraps offer the best protection and appearance but cost more. Aluminum wraps provide good protection at a lower price point. Plastic covers are the most affordable but may crack in extreme cold. For Hino trucks operating in northern climates or coastal areas, we strongly recommend stainless steel wraps for maximum longevity.