Peterbilt 362 Exhaust Parts

Frequently Asked Questions About Peterbilt 362 Exhaust Parts

Will these exhaust parts fit my specific year Peterbilt 362, and are there differences between COE and conventional models?

Most aftermarket exhaust components for the Peterbilt 362 are designed to fit models from 1980-1986, covering both COE (Cab Over Engine) and conventional configurations. However, the routing and stack placement differ significantly between these two styles. COE models typically require shorter stacks and different mounting brackets due to the cab position. Always verify your truck's specific configuration before ordering, as some parts are model-specific. We recommend checking your OEM or contacting us with your truck's year and cab style for confirmation.

What's the difference between aluminized and chrome stacks, and which lasts longer in harsh conditions?

Chrome stacks offer superior corrosion resistance and maintain their mirror finish longer, typically lasting 5-7 years with proper care. They're ideal for show trucks or drivers in salt-heavy regions. Aluminized steel stacks cost about 40% less and provide good durability (3-5 years) but will develop a matte gray patina over time. For daily drivers in moderate climates, aluminized is often the practical choice. Chrome requires regular polishing to maintain appearance, while aluminized needs minimal maintenance beyond cleaning.

Can I install these exhaust components myself, or do I need special tools and expertise?

Basic exhaust stack and tip installations can be completed with standard hand tools including wrenches, a socket set, and pipe hangers. Most drivers can handle these in 2-3 hours. However, complete system overhauls involving manifolds, turbo pipes, or custom routing typically require cutting tools, welding equipment, and exhaust shop expertise. Common DIY challenges include aligning clamps properly to prevent leaks and ensuring adequate clearance from cab components. Professional installation runs $100-300 per hour for complex jobs.

What size exhaust stack should I choose, and how does it affect performance?

The Peterbilt 362 typically uses 5-inch diameter exhaust systems from the factory. Upgrading to 6-inch stacks is popular for appearance but requires step-up adapters. Contrary to common belief, larger diameter alone won't improve performance - proper sizing depends on your engine specs. Over-sizing can actually reduce exhaust velocity and hurt low-end torque. Most Cat 3406 and Cummins Big Cam engines in these trucks perform best with 5-inch systems. Choose 6-inch primarily for looks or if you've significantly increased horsepower beyond stock.

How do I prevent exhaust leaks at joints, and what are the signs of failing exhaust clamps?

Exhaust leaks commonly occur at clamp connections due to thermal expansion and vibration. Use high-quality band clamps rated for diesel exhaust temperatures (1000?F+) and apply anti-seize compound to threads. Tighten clamps to manufacturer specs - over-tightening can deform pipes. Signs of failing components include black soot streaks at joints, increased cab noise, and exhaust smell during operation. Inspect clamps every 6 months for cracks or stretched bands. Replace any clamp showing rust-through or inability to maintain proper tension.