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Mack Emission Control Parts

Sensors
Mack Sensors 80 parts
Filters
Mack Filters 21 parts
EGR and Related Components
Mack EGR and Related Components 14 parts
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Mack Emission Components 12 parts
Hardware, Fasteners and Fittings
Mack Hardware, Fasteners and Fittings 6 parts
Gaskets and Sealing Systems
Mack Gaskets and Sealing Systems 4 parts
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Mack Fuel Injection System and Related Components 1 part
Crankcase Ventilation System
Mack Crankcase Ventilation System Parts 1 part

1–48 of 1000+ results

Dorman 904-5051
Dorman logo
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Dorman 904-5051 Exhaust Gas Recirculation (EGR) Cooler - Flanged, Natural, Stainless Steel, Standard Replacement Grade

Exhaust Gas Recirculation (EGR) Cooler

Fits Mack
DORMAN Exhaust Gas Recirculation (EGR) Cooler - Flanged, Natural, Stainless Steel, Standard Replacement Grade 00889245286772
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Dorman 904-7902
Dorman logo
Top Seller

Dorman 904-7902 "HD Solutions" Crankcase Ventilation Filter

Engine Crankcase Breather Element

Fits Mack
DORMAN "HD Solutions" Crankcase Ventilation Filter 00885484704886
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Williams Controls 134030
Williams Controls logo
Top Seller

Williams Controls 134030 Throttle Position Sensor Kit, 5V, Integral Preload Spring, for Caterpillar Engines

Throttle Position Sensor Kit

WILLIAMS CONTROLS Throttle Position Sensor Kit, 5V, Integral Preload Spring, for Caterpillar Engines
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WIX Filters WS10124
WIX Filters logo
Top Seller

WIX Filters WS10124 WIX Crankcase Ventilation Filter

Engine Crankcase Breather Element

Fits Mack
WIX FILTERS WIX Crankcase Ventilation Filter 00765809305878
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WIX Filters WA11221
WIX Filters logo
Top Seller

WIX Filters WA11221 WIX Crankcase Ventilation Filter

Engine Crankcase Breather Element

Fits Mack
WIX FILTERS WIX Crankcase Ventilation Filter 00765809933651
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Freightliner A04-27445-000
Freightliner logo
Top Seller Ships Free

Freightliner A04-27445-000 Diesel Exhaust Fluid (DEF) Tank Header

Diesel Exhaust Fluid (DEF) Tank Header

FREIGHTLINER Diesel Exhaust Fluid (DEF) Tank Header
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MANN+HUMMEL Filters U58/11KIT
MANN+HUMMEL Filters logo
Top Seller

MANN+HUMMEL Filters U58/11KIT MANN-FILTER BASE Diesel Exhaust Cartridge

Diesel Exhaust Fluid (DEF) Urea Filter

Fits Mack
MANN-HUMMEL FILTERS MANN-FILTER BASE Diesel Exhaust Cartridge 00000000000000
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Baldwin PE17002 KIT
Baldwin logo
Top Seller

Baldwin PE17002 KIT Diesel Exhaust Fluid (DEF) Urea Filter Kit - used for Various Applications

Diesel Exhaust Fluid (DEF) Urea Filter

Fits Mack
BALDWIN Diesel Exhaust Fluid (DEF) Urea Filter Kit - used for Various Applications 00791440116368
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WIX Filters WS10021
WIX Filters logo
Top Seller

WIX Filters WS10021 WIX Diesel Exhaust Cartridge

Diesel Exhaust Fluid (DEF) Urea Filter

Fits Mack
WIX FILTERS WIX Diesel Exhaust Cartridge 00765809932784
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Baldwin PE17000
Baldwin logo
Top Seller

Baldwin PE17000 Diesel Exhaust Fluid (DEF) Urea Filter - used for Various Applications

Diesel Exhaust Fluid (DEF) Urea Filter

Fits Mack
BALDWIN Diesel Exhaust Fluid (DEF) Urea Filter - used for Various Applications 00791440105515
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WIX Filters W74B191
WIX Filters logo
Top Seller

WIX Filters W74B191 WIX INDUSTRIAL HYDRAULICS Diesel Exhaust Cartridge

Diesel Exhaust Fluid (DEF) Urea Filter

Fits Mack
WIX FILTERS WIX INDUSTRIAL HYDRAULICS Diesel Exhaust Cartridge 00765809372368
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Dorman 904-6002
Dorman logo
Top Seller

Dorman 904-6002 NOX SENSOR

Nitrogen Oxide (NOx) Sensor

Fits Mack
DORMAN NOX SENSOR 00885484391611
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Baldwin CV15000
Baldwin logo
Top Seller

Baldwin CV15000 Engine Crankcase Breather Element - used for Various Truck Applications

Engine Crankcase Breather Element

Fits Mack
BALDWIN Engine Crankcase Breather Element - used for Various Truck Applications 00791440084032
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Dorman 904-6013
Dorman logo
Top Seller

Dorman 904-6013 "HD Solutions" Nitrogen Oxide Sensor Outlet of Diesel Particulate Filter

Nitrogen Oxide (NOx) Sensor

Fits Mack
DORMAN "HD Solutions" Nitrogen Oxide Sensor Outlet of Diesel Particulate Filter 00885484391833
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WIX Filters WA11360
WIX Filters logo
Top Seller

WIX Filters WA11360 WIX Crankcase Ventilation Filter

Engine Crankcase Breather Element

Fits Mack
WIX FILTERS WIX Crankcase Ventilation Filter 00765809919549
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Walker Products 1004-1026
Top Seller

Walker Products 1004-1026 Walker Products Genuine HD OE 1004-1026 Nitrogen Oxide (NOx) Sensor

Nitrogen Oxide (NOx) Sensor

Fits Mack
WALKER PRODUCTS Walker Products Genuine HD OE 1004-1026 Nitrogen Oxide (NOx) Sensor 00724620228988
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Baldwin CV15012
Baldwin logo
Top Seller

Baldwin CV15012 Engine Crankcase Breather Element - used for Various Truck Applications

Engine Crankcase Breather Element

Fits Mack
BALDWIN Engine Crankcase Breather Element - used for Various Truck Applications 791440109681
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Walker Products 1004-1038
Top Seller Ships Free

Walker Products 1004-1038 Walker Products Genuine HD OE 1004-1038 Nitrogen Oxide (NOx) Sensor

Nitrogen Oxide (NOx) Sensor

Fits Mack
WALKER PRODUCTS Walker Products Genuine HD OE 1004-1038 Nitrogen Oxide (NOx) Sensor 00724620229107
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Freightliner 04-35649-002
Freightliner logo
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Freightliner 04-35649-002 Diesel Exhaust Fluid (DEF) Tank Header - UQLS, 6 Gallon, KUS

Diesel Exhaust Fluid (DEF) Tank Header

FREIGHTLINER Diesel Exhaust Fluid (DEF) Tank Header - UQLS, 6 Gallon, KUS
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Freightliner 04-35959-002
Freightliner logo
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Freightliner 04-35959-002 Diesel Exhaust Fluid (DEF) Tank Header - UQLS 13/23 Gallon KUS

Diesel Exhaust Fluid (DEF) Tank Header

FREIGHTLINER Diesel Exhaust Fluid (DEF) Tank Header - UQLS 13/23 Gallon KUS
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Dorman 904-6006
Dorman logo
Top Seller

Dorman 904-6006 Nitrogen Oxide Sensor Outlet Of Diesel Particulate Filter

Nitrogen Oxide (NOx) Sensor

Fits Mack
DORMAN Nitrogen Oxide Sensor Outlet Of Diesel Particulate Filter 00885484391697
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International 4065382C1
International logo
Top Seller

International 4065382C1 Diesel Exhaust Fluid (DEF) Pressure Supply Hose/Line - for Commercial Trucks and Heavy-Duty Vehicles

Diesel Exhaust Fluid (DEF) Hose

INTERNATIONAL Diesel Exhaust Fluid (DEF) Pressure Supply Hose/Line - for Commercial Trucks and Heavy-Duty Vehicles
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Dorman 904-7938
Dorman logo
Top Seller

Dorman 904-7938 DEF FILLER

Diesel Exhaust Fluid (DEF) Filler Neck Filter

Fits Mack
DORMAN DEF FILLER 00889245175137
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Detroit Diesel RA4721401380
Detroit Diesel logo
Top Seller

Detroit Diesel RA4721401380 Exhaust Gas Recirculation (EGR) Cooler Mounting Seal Kit for Detroit Diesel DD13 / DD15

Exhaust Gas Recirculation (EGR) Cooler Seal

DETROIT DIESEL Exhaust Gas Recirculation (EGR) Cooler Mounting Seal Kit for Detroit Diesel DD13 / DD15
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WIX Filters WS10023
WIX Filters logo
Top Seller

WIX Filters WS10023 WIX Diesel Exhaust Cartridge

Diesel Exhaust Fluid (DEF) Urea Filter

Fits Mack
WIX FILTERS WIX Diesel Exhaust Cartridge 00765809918672
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Williams Controls 131973
Williams Controls logo
Top Seller

Williams Controls 131973 Remote Sensor Assembly for WM531 Model, with Screw, fits Cummins/Mercedes North America Engines

Throttle Position Sensor Kit

WILLIAMS CONTROLS Remote Sensor Assembly for WM531 Model, with Screw, fits Cummins/Mercedes North America Engines
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Dorman 668-1000
Dorman logo
Top Seller

Dorman 668-1000 EGR Connection Gasket

Exhaust Gas Recirculation (EGR) Cooler Gasket Kit

Fits Mack
DORMAN EGR Connection Gasket 00194883176232
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Freightliner 04-32529-000
Freightliner logo
Top Seller

Freightliner 04-32529-000 Diesel Exhaust Fluid (DEF) Filler Neck - Non-Magnetic, 15% Glass Fiber Reinforced

Diesel Exhaust Fluid (DEF) Filler Neck

FREIGHTLINER Diesel Exhaust Fluid (DEF) Filler Neck - Non-Magnetic, 15% Glass Fiber Reinforced
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Dorman 904-7119
Dorman logo
Top Seller

Dorman 904-7119 "HD Solutions" Crank Case Pressure Sensor

Engine Crankcase Pressure Sensor

Fits Mack
DORMAN "HD Solutions" Crank Case Pressure Sensor 00885484435810
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Cummins 3954753
Cummins logo
Top Seller

Cummins 3954753 Exhaust Gas Recirculation (EGR) Cooler Hose - Air Transfer Tube

Exhaust Gas Recirculation (EGR) Cooler Hose

CUMMINS Exhaust Gas Recirculation (EGR) Cooler Hose - Air Transfer Tube
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Global Parts Distributors 1815704
Top Seller

Global Parts Distributors 1815704 gpd Throttle Position Sensor

Throttle Position Sensor

Fits Mack
GLOBAL PARTS DISTRIBUTORS gpd Throttle Position Sensor 00886429406339
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Motorad DEF105
Motorad logo
Top Seller

Motorad DEF105 Locking Diesel Exhaust Fluid (DEF) Filler Cap

Diesel Exhaust Fluid (DEF) Filler Cap

Fits Mack
MOTORAD Locking Diesel Exhaust Fluid (DEF) Filler Cap 00055644927633
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Dorman 924-8010
Dorman logo
Top Seller

Dorman 924-8010 IGNITER PLUG

Diesel Particulate Filter (DPF) Igniter Plug

Fits Mack
DORMAN IGNITER PLUG 00889245852441
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Omega Environmental Technologies EGT294
Omega Environmental Technologies logo
Top Seller

Omega Environmental Technologies EGT294 Exhaust Gas Temperature (EGT) Sensor

Exhaust Gas Temperature (EGT) Sensor

Fits Mack
OMEGA ENVIRONMENTAL TECHNOLOGIES Exhaust Gas Temperature (EGT) Sensor 00780250208547
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Baldwin CV15010
Baldwin logo
Top Seller

Baldwin CV15010 Engine Crankcase Breather Element - used for Various Truck Applications

Engine Crankcase Breather Element

Fits Mack
BALDWIN Engine Crankcase Breather Element - used for Various Truck Applications 00791440109674
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Bosch 18127
Bosch logo
Top Seller

Bosch 18127 Oxygen Sensor - Thimble and Planar, Stainless Steel, Heated, 22mm Hex, Threaded

Oxygen Sensor

BOSCH Oxygen Sensor - Thimble and Planar, Stainless Steel, Heated, 22mm Hex, Threaded 00077212167289
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Standard Ignition DPS101
Standard Ignition logo
Top Seller

Standard Ignition DPS101 Diesel Particulate Filter Pressure Sensor

Diesel Particulate Filter (DPF) Pressure Sensor

Fits Mack
STANDARD IGNITION Diesel Particulate Filter Pressure Sensor 00033086478159
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Fleetguard UF106
Top Seller Ships Free

Fleetguard UF106 Urea Filter

Diesel Exhaust Fluid (DEF) Urea Filter

FLEETGUARD Urea Filter
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Motorad MO61
Motorad logo
Top Seller

Motorad MO61 Engine Crankcase Breather Cap

Engine Crankcase Breather Cap

MOTORAD Engine Crankcase Breather Cap 00055644000619
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Freightliner 04-35959-001
Freightliner logo
Top Seller Ships Free

Freightliner 04-35959-001 Diesel Exhaust Fluid (DEF) Tank Header with Urea Quality Level Sensor (UQLS), 13/23 Gal

Diesel Exhaust Fluid (DEF) Tank Header

FREIGHTLINER Diesel Exhaust Fluid (DEF) Tank Header with Urea Quality Level Sensor (UQLS), 13/23 Gal
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DURAWRX ASP4310-6600718
Top Seller

DURAWRX ASP4310-6600718 18" DEF Tank Header, 4-Pin Deutsch DT4, 40µ Filter, Digital CANbus

Diesel Exhaust Fluid (DEF) Tank Header

DURAWRX 18" DEF Tank Header, 4-Pin Deutsch DT4, 40µ Filter, Digital CANbus
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Freightliner 04-28829-001
Freightliner logo
Top Seller

Freightliner 04-28829-001 Diesel Exhaust Fluid (DEF) Injector Feed Line Clip - 3/8 Inch

Diesel Exhaust Fluid (DEF) Injector Feed Line Clip

FREIGHTLINER Diesel Exhaust Fluid (DEF) Injector Feed Line Clip - 3/8 Inch
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Mack 21148728
Mack logo
Top Seller

Mack 21148728 Diesel Exhaust Fluid (DEF) Filler Cap

Diesel Exhaust Fluid (DEF) Filler Cap

Fits Mack
MACK Diesel Exhaust Fluid (DEF) Filler Cap
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Dorman 904-6015
Dorman logo
Top Seller

Dorman 904-6015 "HD Solutions" Nitrogen Oxide Sensor Outlet of Diesel Particulate Filter

Nitrogen Oxide (NOx) Sensor

Fits Mack
DORMAN "HD Solutions" Nitrogen Oxide Sensor Outlet of Diesel Particulate Filter 00885484391871
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Freightliner 04-37614-000
Freightliner logo
Top Seller Ships Free

Freightliner 04-37614-000 Diesel Exhaust Fluid (DEF) Tank Header - 10 Gallons, KUS

Diesel Exhaust Fluid (DEF) Tank Header

FREIGHTLINER Diesel Exhaust Fluid (DEF) Tank Header - 10 Gallons, KUS
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Dayton Parts 904-5175
Dayton Parts logo
Top Seller Ships Free

Dayton Parts 904-5175 Exhaust Gas Recirculation Cooler Kit

Exhaust Gas Recirculation (EGR) Cooler

Fits Mack
DAYTON PARTS Exhaust Gas Recirculation Cooler Kit 00194883145177
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Dayton Parts 904-5500
Dayton Parts logo
Top Seller Ships Free

Dayton Parts 904-5500 Exhaust Gas Recirculation Cooler Kit

Exhaust Gas Recirculation (EGR) Cooler

Fits Mack
DAYTON PARTS Exhaust Gas Recirculation Cooler Kit 00885484418493
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Dorman 904-6004
Dorman logo
Top Seller

Dorman 904-6004 NOX SENSOR

Nitrogen Oxide (NOx) Sensor

Fits Mack
DORMAN NOX SENSOR 00885484391659
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