
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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820ELA Slack Reducing RetroFit Coupling Kit
PREMIER
$1,336.99Slack Reducing Coupling Kit W/ Coupling, Airline, Reducer, Fitting, Bolt Kit, Air Chamber With Adapter Bracket, And Thimble * High Quality Slack Reducing Coupling Kit* Includes:- Coupling- Air Line- Reducer Fitting- Fitting- Bolt Kit- Air Chamber-...$1,336.99 -
820ELA Slack Reducing Coupling Kit
PREMIER
$1,395.99Slack Reducing Coupling Kit W/ Coupling, Airline, Reducer, Fitting, Bolt Kit, Air Chamber With Adapter Bracket, And Thimble * High Quality Slack Reducing Coupling Kit* Includes:- Coupling- Air Line- Reducer Fitting- Fitting- Bolt Kit- Air Chamber- Air...$1,395.99 -
Left Bar Latch Lock For 240KL Hitch
PREMIER
$55.07Replacement Left Bar Latch Lock * High Quality Bar Latch Lock* Driver Side * For Use With 204KL Hitch* Made In USA* Sold Individually* Warranty On Bar Latch Locks Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket...$55.07 -
240KL Coupling W/ 133K Left Bar Latch Lock Installed
PREMIER
$534.99Coupling W/ Latch BarThe 240KL Coupling with 133Kl Left Bar Latch lock installed has an effortless-to-handle latch mechanism that is highly resistant to impact. The pintle body is crafted using the exclusive Premalloy material to achieve additional...$534.99 -
240K Coupling For King T-22 Pintle Hook Replacement
PREMIER
$522.99240K CouplingThe 240K Coupling has an effortless-to-handle latch mechanism that is highly resistant to impact. The pintle body is crafted using the exclusive Premalloy material to achieve additional durability and enduring resistance to wear. * High...$522.99 -
240 Coupling
PREMIER
$400.99240 CouplingThe 240 coupling is designed to fit the mounting pattern of our 135NT and is built to last with added durability and wear resistance. It can handle a maximum gross trailer weight of 45,000 lbs. and has a latch capacity of 20,000 lbs., making...$400.99 -
Polymer Bushing For Use With 235NT Coupling
PREMIER
$14.27Polymer Bushing For Use With 235NT Coupling * High Quality Polymer Bushing * For Use With 235NT Coupling* Made In USA* Sold Individually* Warranty On Polymer Bushing S Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...$14.27 -
Swivel Mounting Plate For Use With 235NT Coupling
PREMIER
$133.99Swivel Mounting Plate For Use With 235NT Coupling * High Quality Swivel Mounting Plate* For Use With 235NT Coupling* Made In USA* Sold Individually* Warranty On Swivel Mounting Plates Against Defects In Workmanship & Material From Date Of Purchase***...$133.99 -
570A Slack Reducing Coupling Kit
PREMIER
$1,087.99570A Slack Reducing Coupling Kit * High Quality Reducing Coupling Kit* Includes- Coupling- Bolt Kit- Air Chamber And Thimble* Max. Gross Trailer Weight 90000 Lbs.* Max. Tongue Weight 18000 Lbs.* Ultimate Latch Capacity 20000 Lbs.* Max. Eye X-Section...$1,087.99 -
Retainer Ring - 1-7/8 Inch For Use With 207. 235N. 307. 405L And 405S
MINIMIZER
$11.21Retainer Ring- 1-7/8 Inch For Use With 207. 235N. 307. 405L And 405S * High Quality Retainer Ring* 1-7/8 Inch* Made In USA* Sold Individually* Warranty On Retainer Rings Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...$11.21 -
235NT Swivel Drawbar Eye
PREMIER
$698.99235NT Swivel Drawbar Eye * High Quality Swivel Coupling* Not To Be Used With Swivel-Type Drawbar Eye.* Max. Gross Trailer Weight 60000 Lbs.* Max. Tongue Weight 12000 Lbs.* Ultimate Latch Capacity 20000 Lbs.* Max. Eye X-Section 1-11/16 Inch* Minimum Eye...$698.99 -
160HD Pintle Hitch
PREMIER
$273.99160HD Pintle Hitch * High Quality Coupling* With An Additional 10000 Lbs. Of Gross Trailer Weight Capacity * 2000 Lbs. Of Tongue Weight Capacity* Max. Gross Trailer Weight 40000 Lbs.* Max. Tongue Weight 6500 Lbs.* Ultimate Latch Capacity 5000 Lbs.* Max...$273.99