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This listing shows all of the replacement aftertreatment gaskets from Redline Emissions Products.
Browse the collection of gaskets for Caterpillar, Chevrolet-GMC, Chevy, Cummins, Detroit-Mercedes, Dodge, Duramax, Ford, GM-Chevy Duramax, Hino, Isuzu, John Deere, Mack-Volvo, Mitsubishi, Mopar, Navistar, & Paccar. We also have gaskets from several retrofit manufacturers including: CDTI, Hug, Huss, ESW, Johnson Matthey and more.
All gaskets are made as direct OEM replacements, meaning the product you receive is the right dimensions and material, allowing you to save money without compromising quality.
We also carry gasket tape of various lengths and gasket kits, as well as several doser gaskets used for DEF Injectors.
REP Gaskets (4)

Redline Emissions Products OEM Johnson Matthey DPF Gasket (OEM 11388JMI / REP GR8388)
$32.13
Redline Emissions Products DPF GASKET (OEM 11388JMI / REP GR8388) fits Johnson Matthey size "D" (13" System). OEM Part Number: 11388JMI Gasket dimensions are 13-1/2" ID x 14-3/8" OD Constructed from (2) graphite facings mechanically bonded to a low carbon steel core. Overall thickness: .120 +/- .005 Click to view install instructions

Redline Emissions Products OEM Johnson Matthey DPF Gasket (OEM 8865JMI / REP GR8865)
$26.10
Redline Emissions Products DPF GASKET (OEM 8865JMI / REP GR8865) fits Johnson Matthey size "A" (9.5" System): OEM Part Number: 8865JMI DPF Gasket dimensions: 10" ID x 10-3/4" OD Constructed from (2) graphite facings mechanically bonded to a low carbon steel core Overall thickness: .120 +/- .005

Redline Emissions Products OEM Johnson Matthey DPF Gasket (OEM 8867JMI / REP GR8867)
$28.11
Redline Emissions Products DPF GASKET (OEM 8867JMI / REP GR8867) fits Johnson Matthey size "C" (12" System): OEM Part Number: 8867JMI Gasket dimensions: 12-1/2" ID x 13-1/4" OD Constructed from (2) graphite facings mechanically bonded to a low carbon steel core Overall thickness: .120 +/- .007 Temperature rating: (816C / 1500F)

Redline Emissions Products OEM Johnson Matthey DPF Gasket (OEM 8866JMI / REP GR8866)
$27.11
Redline Emissions Products DPF GASKET (OEM 8866JMI / REP GR8866) fits Johnson Matthey size "B" (10.5" System). OEM Part Number: 8866JMI Gasket dimensions: 11" ID x 11-3/4" OD Constructed from (2) graphite facings mechanically bonded to a low carbon steel core Overall thickness: .120 +/- .005