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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MC0504 - DOC for Navistar MaxxForce
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MC0504 - DOC for Navistar MaxxForce - DPF Discounter
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Skyline Emissions

MC0504 - DOC for Navistar MaxxForce

Price
$1,471.60$1,484.60
MC0503 - DOC for Navistar MaxxForce
MC0503 - DOC for Navistar MaxxForce - DPF Discounter
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Skyline Emissions

MC0503 - DOC for Navistar MaxxForce

Price
$1,343.42$1,356.42
XN0635 - DOC for Cummins ISX
XN0635 - DOC for Cummins ISX - DPF Discounter
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Skyline Emissions

XN0635 - DOC for Cummins ISX

Price
$2,346.29$2,392.62
XN0634 - DOC for Cummins ISX
XN0634 - DOC for Cummins ISX - DPF Discounter
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Skyline Emissions

XN0634 - DOC for Cummins ISX

Price
$2,346.29$2,392.62
XN0633 - DOC for Cummins ISX
XN0633 - DOC for Cummins ISX - DPF Discounter
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Skyline Emissions

XN0633 - DOC for Cummins ISX

Price
$2,496.35$2,533.70
XN0632 - DOC for Cummins ISX, Navistar N13
XN0632 - DOC for Cummins ISX, Navistar N13 - DPF Discounter
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Skyline Emissions

XN0632 - DOC for Cummins ISX, Navistar N13

Price
$2,106.35$2,143.70
CJ0421 - DOC for Cummins ISC/ISL
CJ0421 - DOC for Cummins ISC/ISL - DPF Discounter
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Skyline Emissions

CJ0421 - DOC for Cummins ISC/ISL

Price
$1,586.49$1,630.88
CJ0420 - DOC for Cummins ISC/ISL
CJ0420 - DOC for Cummins ISC/ISL - DPF Discounter
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Skyline Emissions

CJ0420 - DOC for Cummins ISC/ISL

Price
$1,586.49$1,630.88
XN0525 - DOC for Cummins ISX
XN0525 - DOC for Cummins ISX - DPF Discounter
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Skyline Emissions

XN0525 - DOC for Cummins ISX

Price
$1,822.93$1,868.10
MC0506 - DOC for Navistar MaxxForce
MC0506 - DOC for Navistar MaxxForce - DPF Discounter
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Skyline Emissions

MC0506 - DOC for Navistar MaxxForce

Price
$1,477.84$1,490.58
MC0502 - DOC for Navistar MaxxForce
MC0502 - DOC for Navistar MaxxForce - DPF Discounter
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Skyline Emissions

MC0502 - DOC for Navistar MaxxForce

Price
$1,331.73$1,368.48
MC0501 - DOC for Navistar MaxxForce
MC0501 - DOC for Navistar MaxxForce - DPF Discounter
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Skyline Emissions

MC0501 - DOC for Navistar MaxxForce

Price
$1,306.07$1,342.82
CJ0407 - DOC for Cummins ISC/ISL
CJ0407 - DOC for Cummins ISC/ISL - DPF Discounter
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Skyline Emissions

CJ0407 - DOC for Cummins ISC/ISL

Price
$1,692.60$1,740.70
1N0508 - DOC for Navistar MaxxForce 11/13
1N0508 - DOC for Navistar MaxxForce 11/13 - DPF Discounter
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Skyline Emissions

1N0508 - DOC for Navistar MaxxForce 11/13

Price
$2,548.78$2,602.73
DNT508 - DOC for Detroit Diesel and Mercedes Benz
DNT508 - DOC for Detroit Diesel and Mercedes Benz - DPF Discounter
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Skyline Emissions

DNT508 - DOC for Detroit Diesel and Mercedes Benz

Price
$2,364.26$2,463.50
CJ0418 - DOC for Cummins ISC/ISL
CJ0418 - DOC for Cummins ISC/ISL - DPF Discounter
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Skyline Emissions

CJ0418 - DOC for Cummins ISC/ISL

Price
$2,005.90$2,047.50
XN0631 - DOC for Cummins ISX, Paccar MX13
XN0631 - DOC for Cummins ISX, Paccar MX13 - DPF Discounter
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Skyline Emissions

XN0631 - DOC for Cummins ISX, Paccar MX13

Price
$2,011.75$2,046.20
XN0618 - DOC for Cummins ISX, Navistar N13
Sale
XN0618 - DOC for Cummins ISX, Navistar N13 - DPF Discounter
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Skyline Emissions

XN0618 - DOC for Cummins ISX, Navistar N13

Price
$1,928.49$2,044.90
XN0617 - DOC for Cummins ISX
XN0617 - DOC for Cummins ISX - DPF Discounter
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Skyline Emissions

XN0617 - DOC for Cummins ISX

Price
$1,880.71$1,935.73
XN0614 - DOC for Cummins ISX
XN0614 - DOC for Cummins ISX - DPF Discounter
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Skyline Emissions

XN0614 - DOC for Cummins ISX

Price
$1,877.20$1,932.22
MN0406 - DOC for Cummins ISM/ISL
MN0406 - DOC for Cummins ISM/ISL - DPF Discounter
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Skyline Emissions

MN0406 - DOC for Cummins ISM/ISL

Price
$1,664.78$1,736.28
CJ0406 - DOC for Cummins ISC/ISL
CJ0406 - DOC for Cummins ISC/ISL - DPF Discounter
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Skyline Emissions

CJ0406 - DOC for Cummins ISC/ISL

Price
$1,530.49$1,582.01
CJ0404 - DOC for Cummins ISC/ISL
CJ0404 - DOC for Cummins ISC/ISL - DPF Discounter
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Skyline Emissions

CJ0404 - DOC for Cummins ISC/ISL

Price
$2,113.14$2,225.82
CJ0402 - DOC for Cummins ISC
CJ0402 - DOC for Cummins ISC - DPF Discounter
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Skyline Emissions

CJ0402 - DOC for Cummins ISC

Price
$1,536.34$1,587.86