International 9900/i/ix DPF & Mufflers

Frequently Asked Questions About International 9900/i/ix DPF & Mufflers

Will this DPF or muffler fit my specific International 9900, 9900i, or 9900ix model year?

Fitment on these trucks can vary depending on engine option, chassis configuration, and production year, so it is important to confirm the part number and specifications against your truck's existing exhaust component before ordering. If you are unsure, have your VIN and engine details ready and reach out to our parts specialists to verify compatibility before purchase.

What is the difference between a DPF (diesel particulate filter) and a muffler in this category?

A DPF is an emissions component that captures soot and particulate matter from the exhaust stream and typically requires periodic cleaning or regeneration, while a muffler is designed primarily to reduce exhaust noise. Some listings in this category may be aftermarket exhaust housings or replacement shells rather than complete emissions-certified assemblies, so review each product description carefully to understand exactly what is included.

Are these parts new, used, or reconditioned?

We carry a mix of new aftermarket, used take-off, and reconditioned DPF and muffler components, and the condition is listed on each individual product page. Used and reconditioned units can be a cost-effective option, but we recommend reading the condition notes and asking about testing or cleaning history if that information matters for your application.

Do these parts meet emissions standards for road use?

Because emissions regulations vary by state and by whether a part affects a certified emissions system, it is the buyer's responsibility to confirm that any DPF or exhaust component meets applicable EPA and state regulations before installation. If you have questions about a specific part's emissions compliance, we encourage you to consult the product listing details or contact us directly for clarification.

Can I install a DPF or muffler myself, or should I have a professional handle it?

Muffler replacement is generally straightforward for anyone comfortable with basic exhaust work and hand tools, while DPF replacement or service can involve additional considerations such as sensor connections, mounting brackets, and proper sealing. If you are not experienced with diesel exhaust systems, we recommend having the installation performed by a qualified diesel technician to ensure proper fit and function.