Mack Truck Parts
Find top-quality Mack truck parts at 4 State Trucks. Upgrade your rig with OE replacements and aftermarket solutions to ensure peak performance and durability. From bumpers and engine parts to fenders, you'll discover everything needed to keep your truck in prime condition. Hit the road confidently with reliable replacement Mack Truck parts.
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20 X 13.9 X 17 Inch Heavy Duty Diesel Particulate Filter - Replaces 4965229, 4965286, 4965286NX, 4969838
DAYTON / DORMAN
$2,903.99Heavy Duty DPF - Replaces 4969838NX, 4969839, 4969839NX, Q621371, Q623316 & Q623804 * High Quality DPF* Body Height: 20 Inch* Body Length: 13.9 Inch* Body Material: Stainless Steel* Body Width: 17 Inch* Grade Type: Standard* Inlet Gasket Included: Yes*...$2,903.99 -
On Sale
Nitrogen Oxide Sensor Outlet Of Diesel Particulate Filter - Replaces 1954666PE, 1954666PRX, 2872947NX, 4326869RX
DAYTON / DORMAN
Now: $197.24Was: $365.99Nitrogen Oxide Sensor Outlet Of Diesel Particulate Filter * High Quality Nitrogen Oxide Sensor* Connector Color: Black And Silver* Connector Gender: Female* Connector Shape: Oval* Package Contents: Sensor With Module* Terminal Gender: Male* Terminal...Now: $197.24Was: $365.99 -
Nitrogen Oxide Sensor Inlet Of Diesel Particulate Filter - Replaces 2872297, 2894945NX, 5293295NX, 5293295RX
DAYTON / DORMAN
$621.99Nitrogen Oxide Sensor Inlet Of Diesel Particulate Filter * High Quality Nitrogen Oxide Sensor* Connector Color: Black And Silver* Connector Gender: Female* Connector Shape: Oval* Package Contents: Sensor With Module* Terminal Gender: Male* Terminal...$621.99 -
On Sale
Nitrogen Oxide Sensor Inlet Of DPF Connector - Replaces 2872948, 2872948NX, 326873RX, 4326873, 5295473
DAYTON / DORMAN
Now: $117.90Was: $654.99Nitrogen Oxide Sensor Inlet Of DPF Connector * High Quality Nitrogen Oxide Sensor* Connector Color: Black And Silver* Connector Gender: Female* Connector Shape: Oval* Package Contents: Sensor With Module* Terminal Gender: Male* Terminal Quantity: 4*...Now: $117.90Was: $654.99 -
On Sale
Nitrogen Oxide Sensor Inlet Of Diesel Particulate Filter For Cummins ISX Newer W/ 590MM Lead-12Volt
DAYTON / DORMAN
Now: $76.36Was: $331.99Nitrogen Oxide Sensor Inlet Of Diesel Particulate Filter Replaces 2871978, 2894939, 2894939RX, 4984053, 4984576 * High Quality Nitrogen Oxide Sensor* Connector Color: Black* Connector Gender: Female* Connector Shape: Oval* Package Contents: 1 Sensor With...Now: $76.36Was: $331.99 -
247MM-257MM Stainless Steel DPF Exhaust Clamp - Replaces A6809950202
DAYTON / DORMAN
$53.85247MM-257MM Stainless Steel DPF Exhaust Clamp * High Quality DPF Exhaust Clamp* Adjustment Type: Manual* Band Material Thickness: 1.6 Mm* Band Width: 25.3 Mm* Clamping Type: Bolt* Color: Natural* Material: Stainless Steel* Maximum Diameter: 257 Mm*...$53.85 -
Nitrogen Oxide Exhaust Sensor Connector - Replaces 2894946NX
DAYTON / DORMAN
$421.99Nitrogen Oxide Exhaust Sensor Connector * High Quality Nitrogen Oxide Exhaust Sensor* Connector Color: Gray* Connector Gender: Female* Connector Shape: Oval* Package Contents: 1 Sensor With Module* Terminal Gender: Male* Terminal Quantity: 4* Terminal...$421.99 -
Lincoln Chrome 108 Inch Bull Hauler Turnout Stack 5 Inch ID
LINCOLN CHROME
$715.99Lincoln Chrome 5 Inch ID X 108 Inch Chrome Bull Hauler Exhaust Stack * High Quality Exhaust Stack* Chrome * 5 ID X 108 Inch Bull Hauler * Sold Individually** Warranty On Exhaust Stacks Against Defects In Workmanship & Material From Date Of...$715.99 -
DPF Differential Pressure Sensor - Replaces 2596655C1, 4921730
DAYTON / DORMAN
$186.99DPF Differential Pressure Sensor * High Quality DPF Differential Pressure Sensor* Color: Black* Gender: Female* Maximum Pressure: 10 PSI* Shape: Oval* Terminal Gender: Male* Terminal Quantity: 3* Terminal Type: Blade* Sold Individually** Warranty On DPF...$186.99 -
Lincoln Chrome 7-5 X 54 Inch Flat Top Stack
LINCOLN CHROME
$414.99Chrome 7 To 5 Inch X 54 Inch Flat Top Stack * High Quality Flat Top Stack * 7 Inch Reduced To 5 Inch O.D. * 54 Inches Tall* Sold Individually * Warranty On Flat Top Stack Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...$414.99 -
On Sale
6-5 Inch 90 Degree 20 Inch Medium Length Exhaust Elbow
LINCOLN CHROME
Now: $382.89Was: $546.996 To 5 Inch Tapered 90 Degree 20 Inch Medium Length Exhaust Elbow * Made Of High Quality Chrome-Plated Steel* 6 Inch Reduces to 5 Inch OD* 90 Degree Universal Elbow* Tapers To 5 Inch* 20 Inch Bottom Leg Length * Tapered Top For OD Stacks* Sold...Now: $382.89Was: $546.99 -
8-5 Inch X 48 Inch Chrome West Coast Turnout Top Stack
LINCOLN CHROME
$574.998-5 Inch X 48 Inch Chrome West Coast Turnout Top Stack * High Quality Top Stack* 8 Inch * 48 Inch Tall* 5 Inch O.D. * Sold Individually * Warranty On Top Stack Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket...$574.99