Frequently Asked Questions About Peterbilt 362 Transmission Coolers

Will these transmission coolers fit my specific year Peterbilt 362?

Most aftermarket transmission coolers for the Peterbilt 362 are designed to fit models from 1980 to 1987. However, there can be variations based on your truck's original transmission type (manual vs. automatic) and whether it has factory air conditioning. We recommend checking your VIN and original equipment specs before ordering. If you're unsure, contact us with your truck's year and transmission model for verification.

What's the difference between tube-and-fin and plate-and-fin coolers for my 362?

Tube-and-fin coolers are typically more affordable and work well for standard highway driving conditions. Plate-and-fin coolers offer 20-30% better cooling efficiency and are recommended for heavy hauling, mountainous terrain, or if you're running higher horsepower. The plate-and-fin design also tends to be more compact, which can be beneficial if you have limited mounting space behind your grille.

Do I need special tools or professional installation for these coolers?

Basic installation typically requires standard hand tools, including wrenches, a drill for mounting brackets, and hose cutters. You'll also need transmission fluid for refilling. The most challenging part is usually routing the cooler lines and ensuring proper clearance from moving parts. Plan for 2-4 hours of installation time. Many drivers choose professional installation to ensure proper line routing and to avoid warranty issues.

How do I know what size transmission cooler I need for my Peterbilt 362?

Cooler sizing depends on your gross vehicle weight rating (GVWR) and typical load conditions. For standard highway use with loads under 60,000 lbs, a 20,000-24,000 GVW rated cooler is sufficient. For heavy hauling over 60,000 lbs or frequent mountain driving, opt for a 30,000+ GVW rated cooler. Oversizing by 20% provides extra protection and typically doesn't create any issues.

Are aluminum or steel transmission coolers better for the 362?

Aluminum coolers are lighter and offer excellent heat dissipation but can be more susceptible to road debris damage. Steel coolers are more durable and better suited for off-road or construction site use but add more weight. For most over-the-road applications, aluminum is preferred. Both materials will outlast your transmission if properly maintained. Consider your typical driving conditions when choosing.