Quick answer
Used or scrap DPFs are often purchased by metal recyclers because the filter casing may contain valuable metals. Prices vary widely by size and condition. Legitimate secondhand market exists for functioning DPFs, but it’s illegal to sell or install gutted units for road use.
Detailed answer
Diesel Particulate Filters (DPFs) contain precious metals (in some cases) and stainless steel that can be valuable to recyclers. Additionally, functioning used filters can interest refurbishers who clean and resell them. However, the market’s complicated by legal and ethical concerns about removing or tampering with DPFs for on-road vehicles. Here’s what you need to know:
1. Scrap Metal Value
– What’s in it: The external casing is often made of stainless steel, and the internal substrate can contain small amounts of valuable metal catalysts (though less commonly than in catalytic converters).
– Scrap Prices: Prices vary based on steel markets and whether the filter has any platinum-group metals. Typically, you might see anywhere from £10–£100, but it depends on model and the current scrap market. Large commercial vehicle DPFs might fetch more.
– Recyclers and Yards: Many scrap yards take DPFs alongside catalytic converters, checking brand or size. They often have a price list that changes monthly.
2. Refurbishment and Resale
– Working DPF: If your DPF is still in decent condition, some companies buy it to clean (ultrasonic or thermal) and resell to other owners looking for a cheaper alternative to new. This can yield higher returns than scrap prices.
– Illegal vs. Legal: It’s legal to sell a functional DPF to a refurbisher or as a used part if you’re replacing it for legitimate reasons. But selling a gutted DPF “shell” that won’t work is effectively enabling someone’s DPF delete—illegal on public roads.
3. Price Lists
– Fluctuations: Metal markets are volatile. One month, you might get £50 for a standard diesel DPF; next, it’s £30. Certain popular OEM filters from premium car brands can fetch more.
– Contacting Buyers: Shops specializing in exhaust recycling often publish approximate price charts online. However, final quotes can change based on visual inspection.
4. Cautions
– If you’re removing your DPF purely for scrap while continuing to drive your diesel, that’s illegal for road use. Expect MOT failures and possible fines.
– Many yards require ID or proof of ownership to curb stolen parts trafficking.
– Not all used DPFs are salvageable. If the substrate is damaged, even refurbishers might reject it.
5. Who Actually Buys?
1. Scrap Metal Recyclers: Focus on steel and any precious metal content.
2. Refurbishing Firms: Clean and test filters for resale.
3. Auto Shops: Occasionally buy used OEM DPFs if they have customers seeking cheaper replacements.
Conclusion
So, “Who buys DPF filters?” Typically, scrap dealers or refurbishers. Scrap prices vary by brand and metal content, while functioning filters may command better rates from reconditioners. Just remember, removing your DPF for road use is illegal if you keep driving that vehicle. Still, if you’ve replaced a worn filter and want to recoup some cost, contacting a reputable recycler or refurbishment firm can yield a modest return—and keep materials out of the landfill.
