Frequently Asked Questions About Peterbilt 362 Engine & Performance Parts

What years of Peterbilt 362 trucks are these engine parts compatible with?

Most of our Peterbilt 362 engine and performance parts are designed to fit models from 1980 through 1986, which covers the entire production run of the 362. However, compatibility can vary based on your specific engine model (CAT 3406B, Cummins Big Cam, Detroit Series 60, etc.). Always check the product description for your exact engine serial number range, or contact our tech support team with your VIN for verification before ordering.

Will aftermarket performance parts void my truck's warranty or affect emissions compliance?

If your Peterbilt 362 is still under any form of warranty (unlikely given the model years), performance modifications may affect coverage. More importantly for most owners, certain performance parts like straight pipes, EGR deletes, or modified air intakes may not be street legal in all states. Check your local and state regulations before installing any emissions-related components. For off-road or agricultural use trucks, these restrictions typically don't apply.

How difficult is it to install performance exhaust systems and air filters on a 362?

Basic bolt-on components like performance air filters and mufflers can typically be installed in 1-2 hours with standard hand tools. Complete exhaust systems usually require 3-4 hours and may need cutting/welding depending on your current setup. Turbo upgrades and internal engine modifications should be performed by experienced diesel mechanics. We include detailed instructions with most parts, and our tech line can walk you through any installation questions.

What performance gains can I realistically expect from bolt-on upgrades?

Typical gains from our bolt-on performance packages include: High-flow air filters (5-15 HP), performance exhaust systems (10-25 HP and 30-50 lb-ft torque), and programmer/chip combinations (50-100 HP depending on base engine). Fuel economy improvements of 0.5-1.5 MPG are common with proper tuning. Remember that older engines may need baseline maintenance (injectors, valve adjustments) before seeing maximum gains from performance parts.

Are stainless steel exhaust components worth the extra cost over aluminized steel?

For Peterbilt 362s that see regular use or operate in harsh conditions (salt, moisture), stainless steel exhaust components typically last 3-5 times longer than aluminized steel. The initial cost is usually 40-60% higher, but you'll avoid replacement costs down the road. Aluminized steel works fine for trucks in dry climates or limited use. Chrome stacks are primarily aesthetic and offer similar longevity to stainless when properly maintained.