Clean Diesel Specialists
When it comes to Diesel Particulate Filters (DPFs), the question of whether remanufactured (reman) units are a bargain or a risky gamble often arises. While the lower price of reman DPFs may seem appealing, it's essential to understand the potential consequences of using these filters, particularly in states with stringent regulations like California. This blog provides a detailed perspective on DPF reman units, addressing whether they truly offer value or if they come with hidden risks.
Insights from California ARB Diesel Enforcement
Heather Quiros, Chief of the California ARB Diesel Programs Enforcement Branch, has shared critical insights regarding the growing use of reman DPFs. According to Quiros:
“You have no idea the condition of the filter – and if it’s compatible with your engine. If it isn’t compatible, it could damage a truck’s engine, as well as increase air pollution. DPFs need to be matched to an engine’s duty cycle to work properly. Inferior replacements, while less expensive, may not work. If a deal seems too good to be true, it probably is.”
California is currently the only state that prohibits the sale and installation of used DPFs. This regulation stems from the state’s long-standing commitment to reducing diesel emissions and protecting air quality. Diesel particulates are classified as toxic air contaminants, contributing to cancer and other health risks.
As a result, California enforces strict penalties for the use of non-compliant DPFs:
Illegal to sell or install reman DPFs or uncertified aftermarket replacements.
Fines starting at $35,000 for violations, with penalties increasing based on the number of trucks involved.
Mandatory replacement with OEM equipment for vehicles requiring service in California.
For fleets operating outside California, the risks may still outweigh the savings when opting for reman DPFs.
Key Questions to Ask Before Choosing a DPF Reman
Before deciding on a remanufactured DPF, consider the following critical questions, adapted from Diesel Emission Strategies:
What vehicle was the filter removed from, and why?
Has the filter had multiple owners or been used in more than one vehicle?
When was the filter first placed into service, and how many miles has it accumulated?
What engine codes were triggered during its lifecycle?
Have any upstream component failures (e.g., turbocharger or EGR system) affected the filter's condition?
Has the filter been contaminated with coolant or oil?
Am I trading a low-mileage filter for one nearing the end of its lifecycle?
These questions highlight the uncertainty and potential risks associated with remanufactured DPFs.
Why Choose Certified DPF Solutions?
Remanufactured or uncertified aftermarket DPFs may seem like a cost-effective choice initially, but they often lead to increased maintenance costs, reduced efficiency, or even engine damage over time. In states like California, they can also result in severe legal penalties.
At Clean Diesel Specialists, we recommend investing in OEM-certified DPFs and adhering to proper maintenance schedules to ensure long-term performance and compliance with emissions standards. A properly maintained OEM DPF can last up to 10 years, supporting cleaner emissions and reducing downtime.
Learn More
For professional guidance on DPF maintenance, cleaning, and replacement, contact one of the experts in the CDS Network today.