Frequently Asked Questions About International S1700-S1900 DPF & Mufflers

Will these DPF and muffler systems fit my specific International S-Series truck model and year?

Our DPF and muffler systems are designed for International S1700, S1800, and S1900 models typically manufactured from 2008-2017. However, compatibility can vary based on your specific engine configuration (MaxxForce DT, 9, or 10) and chassis specifications. We recommend checking your truck's VIN and engine serial number before ordering. If you're unsure, contact our support team with your truck's details, and we'll verify the correct fit for your application.

How difficult is the installation process, and what tools or expertise do I need?

Installation typically requires 3-5 hours for experienced mechanics and involves basic hand tools, including socket sets, wrenches, and potentially a cutting tool for exhaust modifications. Most installations require lifting the truck and working underneath, so proper safety equipment and jack stands are essential. While many fleet mechanics handle this installation in-house, we recommend professional installation if you're not experienced with exhaust systems, as proper alignment and sealing are critical for emissions compliance and performance.

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

OEM DPF units typically last 200,000-400,000 miles with proper maintenance, while quality aftermarket options can achieve similar lifespans at a lower cost. The key differences include core material (cordierite vs. silicon carbide), cell density, and warranty coverage. Our aftermarket options use high-grade substrates that meet or exceed EPA standards. Many customers report comparable performance to OEM when paired with regular maintenance, including proper regeneration cycles and annual cleaning services.

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

Signs your DPF needs replacement include frequent regeneration failures, check engine lights with codes P2002 or P244A, excessive backpressure readings above 35 psi, or visible damage like melting or cracking. If your DPF has been cleaned 2-3 times and still shows poor performance, or if it's exceeded 250,000 miles, replacement is often more cost-effective than repeated cleanings. A professional inspection can measure ash loading and flow rates to determine if cleaning will restore function.

Are these DPF and muffler systems compliant with current emissions regulations?

Yes, all DPF and muffler systems we carry for International S-Series trucks are EPA-compliant and meet federal emissions standards. They include proper certification documentation and carry CARB approval where applicable. When installing replacement emissions equipment, retain all documentation for DOT inspections. Note that removing or tampering with DPF systems is illegal and can result in significant fines. Our systems maintain your truck's legal compliance while restoring proper exhaust function.