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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BG0434 - DOC for Cummins ISB 6.7
BG0434 - DOC for Cummins ISB 6.7 - DPF Discounter
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Skyline Emissions

BG0434 - DOC for Cummins ISB 6.7

$1,778.40—$1,843.86
BG0433 - DOC for Cummins ISB 6.7
BG0433 - DOC for Cummins ISB 6.7 - DPF Discounter
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Skyline Emissions

BG0433 - DOC for Cummins ISB 6.7

$1,968.20—$2,033.20
DNT509 - DOC for Detroit Diesel and Mercedes Benz
DNT509 - DOC for Detroit Diesel and Mercedes Benz - DPF Discounter
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Skyline Emissions

DNT509 - DOC for Detroit Diesel and Mercedes Benz

$3,555.83—$3,934.41
LJ0430 - DOC for Cummins ISL 9, Paccar PX-9
LJ0430 - DOC for Cummins ISL 9, Paccar PX - 9 - DPF Discounter
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Skyline Emissions

LJ0430 - DOC for Cummins ISL 9, Paccar PX-9

$1,745.17—$1,793.79
BG0424 - DOC for Cummins ISB 6.7, Paccar PX6
BG0424 - DOC for Cummins ISB 6.7, Paccar PX6 - DPF Discounter
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Skyline Emissions

BG0424 - DOC for Cummins ISB 6.7, Paccar PX6

$1,740.36—$1,821.30
LJ0413 - DOC for Cummins ISL 9, Paccar PX-9
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LJ0413 - DOC for Cummins ISL 9, Paccar PX - 9 - DPF Discounter
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Skyline Emissions

LJ0413 - DOC for Cummins ISL 9, Paccar PX-9

$1,403.34—$1,465.10
MN0406 - DOC for Cummins ISM/ISL
MN0406 Skyline Aftermarket DOC for Cummins ISM/ISL
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Skyline Emissions

MN0406 - DOC for Cummins ISM/ISL

$1,664—$1,735.50
SG0401 - DOC for Isuzu
SG0401 - DOC for Isuzu - DPF Discounter
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Skyline Emissions

SG0401 - DOC for Isuzu

$1,644.50—$1,677
MN0405 - DOC for Cummins ISM/ISL
MN0405 - DOC for Cummins ISM/ISL - DPF Discounter
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Skyline Emissions

MN0405 - DOC for Cummins ISM/ISL

$2,054.65—$2,093
XN0621 - DOC for Cummins ISX
XN0621 - DOC for Cummins ISX - DPF Discounter
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Skyline Emissions

XN0621 - DOC for Cummins ISX

$1,941.55—$1,996.57
XN0504 - DOC for Cummins ISX
XN0504 - DOC for Cummins ISX - DPF Discounter
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Skyline Emissions

XN0504 - DOC for Cummins ISX

$1,564.23—$1,637.64
XN0501 - DOC for Cummins ISX
XN0501 - DOC for Cummins ISX - DPF Discounter
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Skyline Emissions

XN0501 - DOC for Cummins ISX

$1,629.23—$1,702.64
XN0502 - DOC for Cummins ISX
XN0502 - DOC for Cummins ISX - DPF Discounter
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Skyline Emissions

XN0502 - DOC for Cummins ISX

$1,746.23—$1,819.64
VN0608 - DOC for Volvo/Mack
VN0608 - DOC for Volvo/Mack - DPF Discounter
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Skyline Emissions

VN0608 - DOC for Volvo/Mack

$2,580.03—$2,627.86
XN0505 - DOC for Cummins ISX, Navistar MaxxForce 11/13
XN0505 - DOC for Cummins ISX, Navistar MaxxForce 11/13 - DPF Discounter
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Skyline Emissions

XN0505 - DOC for Cummins ISX, Navistar MaxxForce 11/13

$1,652.95—$1,688.70
MC0508 - DOC for Navistar MaxxForce
MC0508 - DOC for Navistar MaxxForce - DPF Discounter
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Skyline Emissions

MC0508 - DOC for Navistar MaxxForce

$1,220.87—$1,234.87
MN0403 - DOC for Cummins ISM/ISL
MN0403 - DOC for Cummins ISM/ISL - DPF Discounter
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Skyline Emissions

MN0403 - DOC for Cummins ISM/ISL

$1,421.23—$1,494.64
MN0401 - DOC for Cummins ISM/ISL
MN0401 - DOC for Cummins ISM/ISL - DPF Discounter
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Skyline Emissions

MN0401 - DOC for Cummins ISM/ISL

$1,561.30—$1,619.90
1M0403 - DOC for Navistar MaxxForce 11/13
1M0403 - DOC for Navistar MaxxForce 11/13 - DPF Discounter
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Skyline Emissions

1M0403 - DOC for Navistar MaxxForce 11/13

$1,828.96—$1,948.44
BG0432 - DOC for Cummins ISB 6.7
BG0432 - DOC for Cummins ISB 6.7 - DPF Discounter
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Skyline Emissions

BG0432 - DOC for Cummins ISB 6.7

$2,067.57—$2,175.16
VNB402 - DOC for Volvo/Mack
VNB402 - DOC for Volvo/Mack - DPF Discounter
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Skyline Emissions

VNB402 - DOC for Volvo/Mack

$2,006.98—$2,112.76
MC0505 - DOC for Navistar MaxxForce
MC0505 - DOC for Navistar MaxxForce - DPF Discounter
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Skyline Emissions

MC0505 - DOC for Navistar MaxxForce

$1,781.53—$1,820
MN0603 - DOC for Paccar MX13
MN0603 - DOC for Paccar MX13 - DPF Discounter
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Skyline Emissions

MN0603 - DOC for Paccar MX13

$2,605.85—$2,654.02
VNB407 - DOC for Volvo/Mack
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VNB407 - DOC for Volvo/Mack - DPF Discounter
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Skyline Emissions

VNB407 - DOC for Volvo/Mack

$1,602.64—$1,680.38