Shop Peterbilt 362 DPF & Mufflers

A new Peterbilt 362 aftermarket muffler is the perfect way to customize your exhaust system. We carry a large inventory of custom, chrome, and aftermarket mufflers, all designed to fit your Peterbilt semi truck. Install a new muffler from 4 State Trucks into your exhaust system.

Peterbilt 362 DPF & Mufflers

Peterbilt 362 DPF & Mufflers is a comprehensive product lineup featuring a wide range of top-quality replacement mufflers, exhaust pipes, and related components for Peterbilt 362 semi-trucks. These products are designed to provide superior performance, improved airflow, and enhanced noise reduction for your Peterbilt. Whether you need a direct replacement or an upgrade, this product lineup offers a variety of options to keep your 362 running efficiently and quietly. Featuring durable aluminized steel construction, these mufflers and exhaust components are built to withstand the demands of heavy-duty use. With a focus on quality and value, this product lineup delivers the parts you need to keep your Peterbilt 362 in top shape.

Frequently Asked Questions About Peterbilt 362 DPF & Mufflers

What years and engine models are these DPF systems compatible with?

Our Peterbilt 362 DPF systems are designed for 2007 and newer models equipped with EPA-compliant engines, including Caterpillar C15 ACERT, Cummins ISX, and PACCAR MX engines. Pre-2007 models do not require DPF systems. Always verify your specific engine serial number and emission requirements before ordering, as some California-compliant models may have different specifications.

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

Installation typically takes 4-6 hours for experienced mechanics. You'll need standard shop tools including a reciprocating saw for removal of old components, torque wrenches (80-100 ft-lbs for clamp connections), and potentially a hoist or transmission jack to support the DPF during installation. Most units come with new gaskets and clamps, but you may need to purchase mounting brackets separately depending on your truck's configuration. Professional installation is recommended if you're not familiar with exhaust system work.

What's the difference between OEM and aftermarket DPF units in terms of performance and longevity?

OEM DPF units typically last 200,000-400,000 miles with proper maintenance and offer exact fit guarantee. Aftermarket options from reputable manufacturers can provide similar longevity at 30-40% less cost, though some may require minor bracket modifications. Both types must meet EPA standards. The main differences are warranty coverage (OEM usually 2-3 years, aftermarket 1-2 years) and core exchange availability. Avoid uncertified or "DPF delete" products as they're illegal for on-road use.

How do I know when my DPF needs replacement versus just cleaning?

Replace your DPF when: back pressure readings exceed 35-40 inHg at operating temperature, you experience frequent regeneration failures, or visual inspection shows melted substrate, cracks, or physical damage. Cleaning is suitable when you have excessive soot loading (typically every 150,000-200,000 miles) but the filter substrate is intact. A professional DPF cleaning service costs $300-500 versus $2,000-4,000 for replacement. If your truck requires regeneration more than once per week or fuel economy drops by more than 20%, have the system inspected immediately.

Are there different muffler options for noise reduction, and how do they affect performance?

We offer three main muffler types for the Peterbilt 362: straight-through designs (loudest, minimal restriction), chambered mufflers (moderate sound reduction, slight back pressure increase of 1-2 psi), and multi-chamber units (quietest option, 3-4 psi back pressure). Most drivers choose chambered mufflers for the best balance. All options maintain similar performance levels, with less than 2% difference in fuel economy. Consider local noise ordinances - some states require mufflers that keep exhaust noise below 95 dB at 50 feet.