Frequently Asked Questions About Peterbilt 362 Charge Air Coolers

What years and engine models are these charge air coolers compatible with?

Our Peterbilt 362 charge air coolers are designed to fit models from 1980 to 1987. They're compatible with CAT 3406B, Cummins NTC, and Detroit Diesel 60 Series engines. Before ordering, verify your specific engine model and serial number, as some mid-year production changes may affect fitment. The cooler dimensions and inlet/outlet configurations can vary between engine manufacturers.

How difficult is the installation process, and what tools are required?

Installation typically takes 3-4 hours for experienced mechanics and requires basic hand tools including socket sets, wrenches, and hose clamp pliers. The most challenging aspects are accessing the mounting brackets behind the grille and properly aligning the inlet/outlet connections. You'll need to drain the coolant system and may need to temporarily remove the grille assembly for better access. We recommend having new coolant hoses and clamps on hand, as the originals often need replacement during installation.

What's the difference between aluminum and copper/brass construction?

Aluminum charge air coolers are lighter weight (typically 15-20 lbs less) and offer better heat dissipation, making them ideal for heavy-duty applications. Copper/brass units are more resistant to road salt corrosion but are heavier and more expensive. Both materials provide similar cooling efficiency when properly maintained. Aluminum cores require using aluminum-safe coolant to prevent corrosion, while copper/brass units are compatible with all coolant types.

How can I tell if my charge air cooler needs replacement?

Common signs include loss of boost pressure (typically 3-5 PSI drop), increased black smoke from exhaust, higher engine temperatures, and visible oil residue at the cooler connections. A pressure test at 30 PSI should hold for at least 15 seconds without dropping more than 2 PSI. Physical damage like bent fins reducing airflow by more than 25% or internal leaks detected during pressure testing indicate immediate replacement is needed.

What warranty coverage is provided, and what voids it?

Our charge air coolers come with a 2-year unlimited mileage warranty covering manufacturing defects and premature failure under normal use. The warranty excludes damage from improper installation, running without adequate coolant, physical impact, or using incorrect coolant types with aluminum cores. To maintain warranty coverage, perform pressure tests every 50,000 miles and document regular cooling system maintenance including annual coolant changes.