Also known as: Additive Pump
OEM & aftermarket dpf additive pump from top brands — compare prices, check fitment, order with free delivery
Shop 7 dpf additive pump from leading manufacturers. Compare prices, check vehicle compatibility, and get free delivery on orders over £99.
The DPF additive pump injects a cerium-based catalyst (commonly Eolys) into the diesel fuel to lower the soot ignition temperature inside the diesel particulate filter. It draws from a separate tank in the boot or under the vehicle and meters the additive in proportion to refuelling. A failed pump prevents regeneration and triggers a warning chain.
Pump replacement is usually triggered by fault codes or low additive level despite a recently topped-up tank. The pump is a simple electromechanical device with a typical service life of 100,000–150,000 miles (160,000–240,000 km).
Cerium additive systems are mostly used by PSA (Peugeot, Citroën) and some Ford and Mazda diesels. The pump must match the additive type and the tank fitting.
Failure modes are dominated by additive crystallisation and electrical faults.
The additive system feeds the DPF, so faults often spread along the chain.
Commonly searched OE numbers fitting DPF Additive Pump from the TecDoc catalogue.