Diesel Oxidation Catalyst (DOC) Diesel Oxidation Catalyst (DOC)
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Diesel Oxidation Catalyst (DOC)

Also known as a catalytic purifier, a Diesel Oxidation Catalyst or DOC is a flow-through filter containing precious metals to remove toxic emissions from exhaust gases, such as hydrocarbons, carbon monoxide and unburned fuel and oil.

Typical Analysis

Toxic elements are reduced by the below percentages:

  • Carbon Monoxide (CO): 90%+
  • Hydrocarbons (HC): 80%+
  • Nitrous Oxide: Small Amounts

Advantages:

  • Highly durable metallic core
  • Cost-effective
  • Low maintenance
  • Simple in operation
  • Can be added to existing exhaust systems, to suit bespoke OEM applications, or incorporated into a Flowtech muffler.
Stock Code Inlet/Outlet (ID)Body DiameterBody LengthNaturally AspiratedTurboTurbo Aftercooled
CSW3-15 1½" (38mm) - 2" (51mm) 72mm 200mm 0 - 1.3L 0 - 1.0L 0 - 0.76L
CSW4-1.5 1½" (38mm) - 2" (51mm) 98mm 218mm 1.3 - 2.5L 1.0 - 1.92L 0.76 - 1.47L
CSW4-2 2" (51mm) - 3" (76mm) 98mm 218mm 1.3 - 2.5L 1.0 - 1.92L 0.76 - 1.47L
CSW5-25 2½" (63mm) - 3" (76mm) 98mm 235mm 2.5 - 4.1L 1.92 - 3.15L 1.47 - 2.41L
CSW6-3 3" (76mm) - 4" (102mm) 135mm 235mm 4.1 - 6.5L 3.15 - 5.0L 2.41 - 3.82L
CSW7-3 3" (76mm) - 4" (102mm) 159mm 245mm 6.5 - 9.8L 5.0 - 7.54L 3.82 - 5.76L
CSW7-35 3½" (89mm) - 4" (102mm) 159mm 245mm 6.5 - 9.8L 5.0 - 7.54L 3.82 - 5.76L
CSW8-35 3½" (89mm) - 5" (127mm) 185mm 300mm 9.8 - 13.3L 7.54 - 10.2L 5.76 - 7.82L
CSW9-4 4" (102mm) - 6" (152mm) 210mm 340mm 13.3 - 16.4L 10.2 - 12.6L 7.82 - 9.65L
CSW9-5 5" (127mm) - 6" (152mm) 210mm 340mm 13.3 - 16.4L 10.2 - 12.6L 7.82 - 9.65L
CSW10-4 4" (102mm) - 6" (152mm) 224mm 452mm 16.4 - 19.7L 12.6 - 152.L 9.65 - 11.59L
CSW10-5 5" (127mm) - 6" (152mm) 224mm 452mm 16.4 - 19.7L 12.6 - 152.L 9.65 - 11.59L
CSW12-5 5" (127mm) - 6" (152mm) 301mm 452mm 19.7 - 23.2L 15.2 - 17.8L 11.59 - 13.75L
CSW12-6 6" (152mm) 301mm 452mm 19.7 - 23.2L 15.2 - 17.8L 11.59 - 13.75L