Shop International 4700 - 4900 DPF & Mufflers

Browse our selection of International 4700-4900 aftermarket and custom mufflers. We have all the mufflers and related parts you need to help you reduce the noise your International engine makes. Shop aftermarket muffler inserts, exhaust dumps, and more at 4 State Trucks.

International 4700-4900 DPF & Mufflers

A hardworking truck deserves a high-performing exhaust system. Whether you're replacing a worn-out unit or upgrading for better airflow and quieter operation, our International 4700-4900 DPF & Mufflers category delivers the quality and performance you need mile after mile. These aftermarket mufflers are built to handle the demands of commercial trucking while keeping noise levels low and fuel efficiency high.

Why Upgrade Your International 4700/4900 Muffler or DPF?

Improved Exhaust Flow: High-flow mufflers reduce backpressure, helping your engine breathe easier and run more efficiently. Lower Noise, Higher Comfort: Quiet performance mufflers reduce cabin noise and vibration ideal for long hauls or city deliveries. Long-Lasting Materials: Made from durable aluminized or stainless steel to resist corrosion, rust, and extreme heat. Easy Fitment: Choose from multiple inlet/outlet sizes and lengths to match your existing setup with minimal modification. Better Fuel Economy: Optimizing your exhaust flow can improve combustion efficiency and reduce overall fuel consumption.

Best Parts & Features

- 6" to 10" Performance Mufflers: Choose from standard and high-flow options designed for power and quiet operation. - Internal Muffler Pipes & Extensions: Great for custom setups or replacing specific sections of your exhaust. - DPF-Compatible Components: Keep your emissions system compliant with replacement parts that fit seamlessly into your existing exhaust layout. These mufflers and DPF parts are engineered for heavy-duty daily use. Whether you re hauling, towing, or just running deliveries, they re built to keep up with your schedule and your truck s workload.

Order Today and Breathe Easy Tomorrow

A new muffler or DPF component isn't just an upgrade it s a performance boost, a sound reduction, and a step toward longer engine life. Shop our International 4700-4900 mufflers and diesel particulate filter parts today and find the perfect fit for your commercial work truck.

Frequently Asked Questions About International 4700-4900 DPF & Mufflers

Will these DPF and muffler systems fit my specific International 4700 or 4900 model year?

DPF systems are typically compatible with 2007 and newer International 4700-4900 trucks due to EPA emissions requirements that began that year. Earlier models (pre-2007) use standard mufflers without DPF technology. Always verify your truck's exact model year and engine type (DT466, MaxxForce DT, etc.) before ordering, as mounting brackets and inlet/outlet sizes can vary between years. Check your VIN or existing part numbers to ensure proper fitment.

How difficult is it to install a replacement DPF or muffler on my International 4700-4900?

Installation typically takes 2-4 hours for experienced mechanics. Most systems are direct bolt-on replacements using existing mounting points and clamps. Common challenges include dealing with rusted bolts on older trucks and ensuring proper gasket alignment. You'll need basic tools including socket sets, penetrating oil for stubborn bolts, and new gaskets. Professional installation is recommended for DPF systems due to potential sensor connections and calibration requirements.

What's the difference between OEM and aftermarket DPF systems for my truck?

OEM DPF systems offer exact factory specifications and typically last 200,000-400,000 miles with proper maintenance. Aftermarket options can save 30-50% on cost while meeting EPA standards, though lifespan may be slightly shorter (150,000-300,000 miles). Quality aftermarket brands use similar substrate materials and precious metal catalysts. Key differences include warranty coverage (OEM usually longer) and potential minor variations in backpressure specifications.

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

Replace your DPF when: differential pressure readings exceed 4.5 psi at idle, you experience frequent regeneration failures, or visual inspection shows melted substrate or physical damage. Cleaning is viable when pressure readings are moderately elevated (2.5-4.0 psi) and no physical damage exists. Most DPFs can be professionally cleaned 2-3 times before replacement is necessary. Warning signs include excessive black smoke, reduced fuel economy, and frequent check engine lights with DPF-related codes.

Are there different styles or configurations available for International 4700-4900 exhaust systems?

Yes, common configurations include horizontal canister-style DPFs, vertical stack-mounted systems, and combination DPF-muffler units. Horizontal systems are standard for most applications, while vertical options work better for trucks with limited frame space. Inlet/outlet orientations vary (center-center, offset-offset, center-offset) based on your specific chassis configuration. Some systems include integrated flex pipes for vibration reduction. Choose based on your mounting space, existing exhaust routing, and whether you need a quiet muffler section integrated with the DPF.