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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BESTfit Oil Cooler For Detroit DD15 Engine - Replaces 4711800865
BESTFIT TRUCK PARTS
$274.99BESTfit Oil Cooler For Detroit DD15 EngineThe Oil Cooler listed is suitable for Detroit DD15 applications and is sold individually as an aftermarket replacement part (not OEM). Before purchasing, it's important to verify OE numbers as there may be...$274.99 -
BESTfit Oil Pump For Detroit 60 Series EGR - Replaces 23527448
BESTFIT TRUCK PARTS
$439.99BESTfit Oil Pump For Detroit 60 Series EGRThe Oil Pump listed is designed for Detroit EGR 60 Series engines and is sold individually as an aftermarket replacement part (not OEM). Before making a purchase, it's important to verify OE numbers as there may...$439.99 -
BESTfit Oil Pump For Detroit 60 Series Engine - Replaces 23505886
BESTFIT TRUCK PARTS
$464.99BESTfit Oil Pump For Detroit 60 Series EngineThe Oil Pan listed is designed for Detroit 60 Series engines and is sold individually as an aftermarket replacement part (not OEM). Before making a purchase, it's important to verify OE numbers as there may be...$464.99 -
BESTfit Oil Pump For Cummins L10, M11, ISM & QSM11 Engines - Replaces 3041186, 3895756, 3883910 & 3803379
BESTFIT TRUCK PARTS
$266.99BESTfit Oil Pump For Cummins L10, M11, ISM & QSM11 EnginesThe Oil Pump listed is compatible with Cummins L10, M11, ISM, and QSM11 engines. It is sold individually as an aftermarket replacement part (not OEM). Before purchasing, it's essential to verify...$266.99 -
BESTfit Flywheel For Caterpillar 3116 & 3126 Engines With 13 Or 14 Inch Clutch
BESTFIT TRUCK PARTS
$239.99BESTfit Flywheel With 10 Inch Center Opening - Replaces 15979722, 15028478 & 1265875The Flywheel listed is designed for Caterpillar 3116 or 3126 engines, featuring a flat design compatible with 13 or 14-inch clutches. It has an SAE #2 size, a 10-inch...$239.99 -
BESTfit Water Pump For Cummins ISM Engine - Replaces 4955708, 4089389, 4972850, 4972842 & 4972843
BESTFIT TRUCK PARTS
$293.99BESTfit Water Pump For Cummins ISM EngineThe Water Pump listed is intended for the Cummins ISM engine and is sold individually as an aftermarket replacement part (not OEM). It's essential to verify OE numbers before purchasing to ensure compatibility, as...$293.99 -
On Sale
BESTfit Water Pump For Detroit DD15 Engine - Replaces 4722000401
BESTFIT TRUCK PARTS
Now: $29.87Was: $102.99BESTfit Water Pump For Detroit DD15 EngineThe Water Pump listed is designed for the DD15 engine and is sold individually as an aftermarket replacement part (not OEM). It's crucial to verify OE numbers before purchasing to ensure compatibility, as there...Now: $29.87Was: $102.99 -
BESTfit Water Pump For Detroit EGR 14.0L 60 Series Engine - Replaces 23538636
BESTFIT TRUCK PARTS
$547.99BESTfit Water Pump For Detroit EGR 14.0L 60 Series EngineThe Water Pump listed is suitable for Detroit EGR 14.0L Series engines and is sold individually. As an aftermarket replacement part (not OEM), it's important to verify OE numbers before making a...$547.99 -
BESTfit Water Pump For Detroit EGR 14.0L 60 Series Engine - Replaces 23531258 & 23532543
BESTFIT TRUCK PARTS
$526.99BESTfit Water Pump For Detroit EGR 14.0L 60 Series EngineThe Water Pump listed is designed for Detroit EGR 14.0L Series engines and is sold individually. As an aftermarket replacement part (not OEM), it's crucial to verify OE numbers before purchasing,...$526.99 -
BESTfit Water Pump For Detroit EGR 12.7L 60 Series Engine - Replaces 23531257 & 23532542
BESTFIT TRUCK PARTS
$404.99BESTfit Water Pump For Detroit EGR 12.7L 60 Series EngineThe Water Pump listed is designed for Detroit EGR 12.7 L 60 Series engines and is sold individually. As an aftermarket replacement part (not OEM), it's essential to verify OE numbers before...$404.99 -
BESTfit Circular EGR Cooler For Cummins IL-G Engine - Replaces 5347234, 5318560 & 4376312
BESTFIT TRUCK PARTS
$799.99BESTfit Circular EGR Cooler For Cummins IL-G EngineThe Circular EGR Cooler listed is designed for Cummins IL-G engines and is sold as a kit. As an aftermarket replacement part (not OEM), it's crucial to verify OE numbers before purchasing to ensure...$799.99 -
BESTfit EGR Cooler For Cummins ISX Gen 3 Engine 2010-2013
BESTFIT TRUCK PARTS
$1,904.99BESTfit EGR Cooler - Replaces 3689282, 3686710, 3687048, 2892893 & 3687813The EGR Cooler is designed for Cummins ISX GEN 3 engines and is sold individually as an aftermarket replacement part, not bearing any OEM branding. Before purchasing, it's...$1,904.99