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OEM Price: USD 4,123

USD 1,900

Save: $2,223

Roadwarrior Part #


Engine Manufacturer

OEM Part Number:


In stock

Direct Fit Replacement DPF for Navistar Maxxforce

OEM Price: USD 4,123

USD 1,900

Save: $2,223

Free ground shipping
Brand new! No core charge
Coated with Platinum
In stock and ready to ship
OEM direct fit
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Roadwarrior is proud to offer the largest aftertreatment catalogue. Roadwarrior believes in making life easier for customers and mechanics alike, while creating parts you can trust. All our aftermarket parts are designed as direct fit replacements for the OEM parts, with equal or greater quality and efficiency. This ensures that installation is quick and easy, getting you back on the road and keeping your heavy equipment running longer.

Roadwarrior specializes in the construction of aftermarket Diesel Particulate Filters (DPF), Diesel Oxidation Catalysts (DOC) and Selective Catalytic Reduction (SCR). Each part is expertly designed with all the necessary ports and sensor attachments, allowing your new part to operate in the same way as the original OEM part. The new aftermarket parts are tested against OEM parts to ensure they match or exceed the standard of the part theyre replacing. In the case of DPFs, this includes ensuring that backpressure, temperature, and regeneration performance are of the highest standard.

Restore Fuel Efficiency

A high performance aftertreatment system enables your engine to be tuned for maximum efficiency at all times. The Diesel Oxidation Catalyst (DOC), Diesel Particulate Filters (DPF), and Selective Catalytic Reduction catalyst (SCR), along with sensors and dosers, treat the emissions from the engine.

Without these devices your engine would need to run much higher EGR ratesharming engine healthand would produce less power as well. When your aftertreatment components wear out or become compromised by upstream malfunctions, the ECU automatically compensates resulting in increased fuel and DEF consumption over time. Roadwarrior offers direct fit components with high performance coatings to restore your fuel efficiency and reduce regeneration frequency.

How Does Regeneration Affect You?

Roadwarriors Metalcor catalyst technology improves your engines efficiency by maximizing passive regeneration during more of your drive cycle. With maximum passive regeneration your engine will getter better mileage due to lower backpressure at high load (when it matters) and reduced consumption of both fuel for active regeneration and Diesel Exhaust Fluid (DEF) used by the SCR system.

How to Maximize Passive Regeneration?

Roadwarrior can help you achieve maximum passive regeneration by restoring or even improving upon the original factory performance. We do this in three ways:

  1. The activity level of the catalyst coating on the DPF is critical to maximize passive regeneration. With a coating that is degraded due to many cleanings, or even absent when new, the ECU will compensate by using more fuel to perform more frequent active regenerations.
  2. A severely degraded DOC will consume extra fuel as it is slowly ramps up to temperature during an active regeneration event. But long before this happens the DOC has failed at its main job which is to enhance passive regeneration.
  3. Engines produce more pollution at higher power settings and at higher efficiency. With a properly functioning SCR catalyst the engine is allowed to run as it should without the ECU intervening to reduce power or harm fuel efficiency.

Why Diagnostic Experts Trust Roadwarrior

If youre looking to improve the aftertreatment options you offer your customers, youve come to the right place. Roadwarrior carries the largest catalogue of aftermarket Diesel Particulate Filters (DPFs), Diesel Oxidization Catalysts (DOCs) and Selective Catalytic Reduction catalysts (SCRs). Roadwarrior parts are designed to be direct fit replacements for a wide range of heavy equipment manufacturers, including Caterpillar, Cummins, Detroit Diesel, Navistar and Volvo. If your regular client base includes construction companies, you may also like to broaden your offering with replacement emissions control devices for heavy machinery. Thats why Roadwarrior parts are already trusted by over 2,000 distributors across North America

Roadwarrior Has You Covered

  • Roadwarrior has the largest catalogue of aftermarket emissions control parts for trucks and buses.
  • Roadwarrior is the only aftermarket manufacturer of DOCs and DPFs for construction machinery.
  • Authorized distributors enjoy bulk order rates and stock discounts.
  • Distributors have access to Roadwarrior experts who offer free product training and webinars.
  • With 12 warehouses across North America, your new part can be shipped to your site in 1-2 days.
  • Our most popular parts are always available for free same-day pickup or next-day delivery.

Scan The Problems Out Of Your Aftertreatment

Save a trip to the dealer with Roadwarrior Diesel Decoder. Use this pocket diagnostic tool to reset your DPF ash accumulator and more!

Read’s DTC’s and Access Instant Repair Help

Detects all true fault codes and provides instant access to the Diesel Laptops® repair library.

VIN Information

Detects and stores comprehensive truck specifications.

Total Vehicle Data

Use vital trip distance, engine operating hours and more to help plan maintenance intervals.

Driver Productivity and Trip Reports

View instant and average fuel economy, hard braking events and more, and generate trip reports that can be viewed, printed and shared.


Weight 60 kg
Part Type

part type
rw part number



1 Customer Review

  1. Dave
    9 July 2018
    great price and quick delivery!
    0 0
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Better Coating, Better Performance.

Roadwarrior is the only manufacturer to use Metalcor® catalyst technology across its entire range of Diesel Oxidation Catalysts (DOCs) and Selective Catalytic Reduction catalysts (SCRs). Metalcor® catalysts feature high activity catalyst coatings fused to thinner, stronger, catalyst substrates to guarantee maximum performance under the harshest conditions.

Metalcor® catalyst coatings are designed and produced in our own labs. We then inspect each unit to ensure you get more fuel efficiency, lower consumption of DEF, and long term performance from your heavy duty engine!


Roadwarrior Has You Covered!

All Roadwarrior emissions parts carry a full value 12 month warranty.

LightningVolt lithium batteries carry a full value 30 month warranty.

To make the process hassle-free, our parts have a metal nameplate with the serial number, so even after 500,000 miles of service, it’s still easy to identify. This avoids the common problem of serial numbers printed on stickers that burn off after the first start-up, making them impossible to return. Our failsafe system allows us to work in your interests, honouring claims for on-road and off-road replacements, and giving you peace of mind.

And since Roadwarrior parts are designed to meet or exceed OEM specifications, you can rest easy knowing our direct fit parts will take the problems out of your aftertreatment without interfering with your OEM warranty.

Next Day Is Nice, Same Day is Better!​

A faulty emissions control system can cost you thousands in wasted man-hours as your heavy equipment sits in the shop awaiting a new part. Whether it’s a truck behind on orders, a bus that can’t take passengers, or heavy machinery delaying construction deadlines, Roadwarrior can get you moving again! 

Roadwarrior has twelve warehouses across the U.S.A. and Canada, which can deliver the most popular aftertreatment parts in 1-2 days. With over 1,000 DPFs, DOCs and SCRs on offer, Roadwarrior offers the largest aftertreatment catalogue.

*LightningVolt lithium batteries ship directly from Roadwarrior in Ontario, to ALL 50 states, including Alaska and Hawaii within 2-4 days.