Diesel Oxidation Catalyst (DOC)

Explore our latest high-quality aftermarket Diesel Oxiation Catalyst (DOC) from renowned manufacturers, backed by industry-leading warranties for long-lasting peace of mind. Enjoy free ground shipping on all DOCs for most U.S. states. Please note that we currently do not ship to California. Customers from California, Alaska, Hawaii, and Puerto Rico can contact us for a freight quote. Need assistance in finding the right part for your truck? Call us at (330)-573-5396 today, or chat with our team on this page!

311 products
Sort by:
Best selling
D2034-ID OEM Equivalent DOC for Caterpillar
D2034 - ID OEM Equivalent DOC for Caterpillar - DPF Discounter
Quick View

Roadwarrior

D2034-ID OEM Equivalent DOC for Caterpillar

$2,531.95
C0200-ID OEM Equivalent DOC for Cummins
C0200 - ID OEM Equivalent DOC for Cummins - DPF Discounter
Quick View

Roadwarrior

C0200-ID OEM Equivalent DOC for Cummins

$2,894.10
D2064-ID OEM Equivalent DOC for Deutz
D2064 - ID OEM Equivalent DOC for Deutz - DPF Discounter
Quick View

Roadwarrior

D2064-ID OEM Equivalent DOC for Deutz

$1,946.82
C0229-ID OEM Equivalent DOC for Cummins
C0229 - ID OEM Equivalent DOC for Cummins - DPF Discounter
Quick View

Roadwarrior

C0229-ID OEM Equivalent DOC for Cummins

$3,702.37
C0303-ID OEM Equivalent DOC for Paccar
C0303 - ID OEM Equivalent DOC for Paccar - DPF Discounter
Quick View

Roadwarrior

C0303-ID OEM Equivalent DOC for Paccar

$3,486.87
C0308-ID OEM Equivalent DOC for Isuzu
C0308 - ID OEM Equivalent DOC for Isuzu - DPF Discounter
Quick View

Roadwarrior

C0308-ID OEM Equivalent DOC for Isuzu

$2,265.74
C0224-ID OEM Equivalent DOC for Cummins
C0224 - ID OEM Equivalent DOC for Cummins - DPF Discounter
Quick View

Roadwarrior

C0224-ID OEM Equivalent DOC for Cummins

$2,616.46
C0309-SA OEM Equivalent DPF for Isuzu
C0309 - SA OEM Equivalent DPF for Isuzu - DPF Discounter
Quick View

Roadwarrior

C0309-SA OEM Equivalent DPF for Isuzu

$1,853.83
C0158-ID OEM Equivalent DOC for Cummins
C0158 - ID OEM Equivalent DOC for Cummins - DPF Discounter
Quick View

Roadwarrior

C0158-ID OEM Equivalent DOC for Cummins

$3,294.76
C0117-ID OEM Equivalent DOC for Cummins
C0117 - ID OEM Equivalent DOC for Cummins - DPF Discounter
Quick View

Roadwarrior

C0117-ID OEM Equivalent DOC for Cummins

$3,169.86
C0142-ID OEM Equivalent DOC for Cummins
C0142 - ID OEM Equivalent DOC for Cummins - DPF Discounter
Quick View

Roadwarrior

C0142-ID OEM Equivalent DOC for Cummins

$2,334.28
C0028-ID OEM Equivalent DOC for Cummins
C0028 - ID OEM Equivalent DOC for Cummins - DPF Discounter
Quick View

Roadwarrior

C0028-ID OEM Equivalent DOC for Cummins

$2,631.92
C0038-ID OEM Equivalent DOC for Cummins
C0038 - ID OEM Equivalent DOC for Cummins - DPF Discounter
Quick View

Roadwarrior

C0038-ID OEM Equivalent DOC for Cummins

$3,703.97
C0060-ID OEM Equivalent DOC for Cummins
C0060 - ID OEM Equivalent DOC for Cummins - DPF Discounter
Quick View

Roadwarrior

C0060-ID OEM Equivalent DOC for Cummins

$3,894.83
C0076-ID OEM Equivalent DOC for Cummins
C0076 - ID OEM Equivalent DOC for Cummins - DPF Discounter
Quick View

Roadwarrior

C0076-ID OEM Equivalent DOC for Cummins

$3,818.43
C0106-ID OEM Equivalent DOC for Cummins
C0106 - ID OEM Equivalent DOC for Cummins - DPF Discounter
Quick View

Roadwarrior

C0106-ID OEM Equivalent DOC for Cummins

$4,318.47
C0111-ID OEM Equivalent DOC for Cummins
C0111 - ID OEM Equivalent DOC for Cummins - DPF Discounter
Quick View

Roadwarrior

C0111-ID OEM Equivalent DOC for Cummins

$2,853.40
C0112-ID OEM Equivalent DOC for Cummins
C0112 - ID OEM Equivalent DOC for Cummins - DPF Discounter
Quick View

Roadwarrior

C0112-ID OEM Equivalent DOC for Cummins

$4,157.28
C0114-ID OEM Equivalent DOC for Cummins
C0114 - ID OEM Equivalent DOC for Cummins - DPF Discounter
Quick View

Roadwarrior

C0114-ID OEM Equivalent DOC for Cummins

$4,018.82
C0124-ID OEM Equivalent DOC for Cummins
C0124 - ID OEM Equivalent DOC for Cummins - DPF Discounter
Quick View

Roadwarrior

C0124-ID OEM Equivalent DOC for Cummins

$3,989.54
C0315-ID OEM Equivalent DOC for Volvo Mack
C0315 - ID OEM Equivalent DOC for Volvo Mack - DPF Discounter
Quick View

Roadwarrior

C0315-ID OEM Equivalent DOC for Volvo Mack

$4,522.73
C0180-ID OEM Equivalent DOC for Cummins
C0180 - ID OEM Equivalent DOC for Cummins - DPF Discounter
Quick View

Roadwarrior

C0180-ID OEM Equivalent DOC for Cummins

$2,244.02
C0184-ID OEM Equivalent DOC for Cummins
C0184 - ID OEM Equivalent DOC for Cummins - DPF Discounter
Quick View

Roadwarrior

C0184-ID OEM Equivalent DOC for Cummins

$2,425.77
C0226-ID OEM Equivalent DOC for Cummins
C0226 - ID OEM Equivalent DOC for Cummins - DPF Discounter
Quick View

Roadwarrior

C0226-ID OEM Equivalent DOC for Cummins

$2,295.61