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!

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$12,876.25
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XN0615 - DOC for Cummins ISX
XN0615 - DOC for Cummins ISX - DPF Discounter
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Skyline Emissions

XN0615 - DOC for Cummins ISX

Price
$1,789.45$1,844.47
XN0610 - DOC for Cummins ISX
XN0610 - DOC for Cummins ISX - DPF Discounter
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Skyline Emissions

XN0610 - DOC for Cummins ISX

Price
$1,975.48$2,024.10
CJ0405 - DOC for Cummins ISC
Sale
CJ0405 - DOC for Cummins ISC - DPF Discounter
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Skyline Emissions

CJ0405 - DOC for Cummins ISC

Price
$1,278.20$1,327.20
CJ0403 - DOC for Cummins ISC
CJ0403 - DOC for Cummins ISC - DPF Discounter
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Skyline Emissions

CJ0403 - DOC for Cummins ISC

Price
$1,392.43$1,437.93
BG0406 - DOC for Cummins ISB 6.7, Paccar PX6
BG0406 - DOC for Cummins ISB 6.7, Paccar PX6 - DPF Discounter
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Skyline Emissions

BG0406 - DOC for Cummins ISB 6.7, Paccar PX6

Price
$2,088.89$2,180.88
BG0402 - DOC for Cummins ISB
BG0402 - DOC for Cummins ISB - DPF Discounter
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Skyline Emissions

BG0402 - DOC for Cummins ISB

Price
$2,036.26$2,081.43
DNT506 - DOC for Detroit Diesel and Mercedes Benz
DNT506 - DOC for Detroit Diesel and Mercedes Benz - DPF Discounter
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Skyline Emissions

DNT506 - DOC for Detroit Diesel and Mercedes Benz

Price
$2,364.26$2,498.90
DNT504 - DOC for Detroit Diesel and Mercedes Benz
DNT504 - DOC for Detroit Diesel and Mercedes Benz - DPF Discounter
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Skyline Emissions

DNT504 - DOC for Detroit Diesel and Mercedes Benz

Price
$2,364.26$2,498.90
DNT503 - DOC for Detroit Diesel and Mercedes Benz
DNT503 - DOC for Detroit Diesel and Mercedes Benz - DPF Discounter
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Skyline Emissions

DNT503 - DOC for Detroit Diesel and Mercedes Benz

Price
$2,364.26$2,498.90
DNT502 - DOC for Detroit Diesel and Mercedes Benz
DNT502 - DOC for Detroit Diesel and Mercedes Benz - DPF Discounter
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Skyline Emissions

DNT502 - DOC for Detroit Diesel and Mercedes Benz

Price
$2,364.26$2,498.90
DNT501 - DOC for Detroit Diesel and Mercedes Benz
DNT501 - DOC for Detroit Diesel and Mercedes Benz - DPF Discounter
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Skyline Emissions

DNT501 - DOC for Detroit Diesel and Mercedes Benz

Price
$2,364.26$2,498.90
VN0603 - DOC for Volvo/Mack
VN0603 - DOC for Volvo/Mack - DPF Discounter
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Skyline Emissions

VN0603 - DOC for Volvo/Mack

Price
$2,136.98$2,242.76
BG0401 - DOC for Cummins ISB
Sale
BG0401 - DOC for Cummins ISB - DPF Discounter
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Skyline Emissions

BG0401 - DOC for Cummins ISB

Price
$1,261.23$1,335.60
XN0509 - DOC for Cummins ISX
XN0509 - DOC for Cummins ISX - DPF Discounter
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Skyline Emissions

XN0509 - DOC for Cummins ISX

Price
$1,771.90$1,830.50
VN0401 - DOC for Volvo/Mack
VN0401 - DOC for Volvo/Mack - DPF Discounter
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Skyline Emissions

VN0401 - DOC for Volvo/Mack

Price
$1,746.23$1,819.64
CJ0401 - DOC for Cummins ISC
Sale
CJ0401 - DOC for Cummins ISC - DPF Discounter
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Skyline Emissions

CJ0401 - DOC for Cummins ISC

Price
$1,380.17$1,449.50
MN0402 - DOC for Cummins ISM/ISL
Sale
MN0402 - DOC for Cummins ISM/ISL - DPF Discounter
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Skyline Emissions

MN0402 - DOC for Cummins ISM/ISL

Price
$1,424.19$1,497.60
Replacement DOC & DPF, Hino - S1805E0270, S1805E0281
Replacement DOC & DPF, Hino - S1805E0270, S1805E0281 - DPF Discounter
Replacement DOC & DPF, Hino - S1805E0270, S1805E0281 - DPF Discounter
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Dinex

Replacement DOC & DPF, Hino - S1805E0270, S1805E0281

Price
$3,224.82
Replacement DOC, Cummins - 3103618, 3999660, Q619494, Q619723, 619724, 619495
Replacement DOC, Cummins - 3103618, 3999660, Q619494, Q619723, 619724, 619495 - DPF Discounter
Replacement DOC, Cummins - 3103618, 3999660, Q619494, Q619723, 619724, 619495 - DPF Discounter
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Dinex

Replacement DOC, Cummins - 3103618, 3999660, Q619494, Q619723, 619724, 619495

Price
$4,778.61
Replacement DOC, Cummins - 2880507
Replacement DOC, Cummins - 2880507 - DPF Discounter
Replacement DOC, Cummins - 2880507 - DPF Discounter
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Dinex

Replacement DOC, Cummins - 2880507

Price
$3,611.39
Replacement DOC, Cummins - 5304054
Replacement DOC, Cummins - 5304054 - DPF Discounter
Replacement DOC, Cummins - 5304054 - DPF Discounter
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Dinex

Replacement DOC, Cummins - 5304054

Price
$3,465.40
Replacement DOC, Cummins - 5295365
Replacement DOC, Cummins - 5295365 - DPF Discounter
Replacement DOC, Cummins - 5295365 - DPF Discounter
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Dinex

Replacement DOC, Cummins - 5295365

Price
$3,465.40
Replacement DOC, Cummins - 2871583
Replacement DOC, Cummins - 2871583 - DPF Discounter
Replacement DOC, Cummins - 2871583 - DPF Discounter
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Dinex

Replacement DOC, Cummins - 2871583

Price
$3,374.14
Replacement DOC, Cummins - 2880502, 2888257
Replacement DOC, Cummins - 2880502, 2888257 - DPF Discounter
Replacement DOC, Cummins - 2880502, 2888257 - DPF Discounter
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Dinex

Replacement DOC, Cummins - 2880502, 2888257

Price
$3,282.92