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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127-8 Bolt On Slack Reducing Eye Parts
PREMIER
$425.99127-8 Bolt On Slack Reducing Eye Parts * High Quality Slack Reducing Eye Parts* Includes:- Shoe- Drawbar Eye- 8 Inch Push Rod* Max. Gross Trailer Weight 100000 Lbs.* Max. Tongue Weight 15000 Lbs.* I.D. Diameter 2-3/8 Inch* Never Attempt Weld Repair Of...$425.99 -
127-7 Bolt On Slack Reducing Eye Parts
PREMIER
$425.99127-7 Bolt On Slack Reducing Eye Parts * High Quality Slack Reducing Eye Parts* Includes:- Shoe- Drawbar Eye - 7 Inch Push Rod* Max. Gross Trailer Weight 100000 Lbs.* Max. Tongue Weight 15000 Lbs.* I.D. Diameter 2-3/8 Inch* Never Attempt Weld Repair Of...$425.99 -
309 Weld On Drawbar Eye
PREMIER
$532.99309 Weld On Drawbar Eye * High Quality Weld- On Drawbar Eye* Max. Gross Trailer Weight 150000 Lbs.* Max. Tongue Weight 15000 Lbs.* Diameter 3 Inch* Never Attempt Weld Repair Of Damaged Or Worn Drawbar Eyes* Slack Reducing Drawbar Eyes Must Be Used With...$532.99 -
108 Weld On Drawbar Eye
PREMIER
$320.99108 Weld On Drawbar Eye * High Quality Weld- On Drawbar Eye* Max. Gross Trailer Weight 100000 Lbs.* Max. Tongue Weight 15000 Lbs.* I.D. Diameter 2-3/8 Inch* Never Attempt Weld Repair Of Damaged Or Worn Drawbar Eyes* Slack Reducing Drawbar Eyes Must Be...$320.99 -
304 Weld On Drawbar Eye
PREMIER
$328.99304 Weld On Drawbar Eye * High Quality Weld- On Drawbar Eye* Max. Gross Trailer Weight 150000 Lbs.* Max. Tongue Weight 15000 Lbs.* I.D. Diameter 3 Inch* Never Attempt Weld Repair Of Damaged Or Worn Drawbar Eyes* Slack Reducing Drawbar Eyes Must Be Used...$328.99 -
150-01 Combination Coupling
PREMIER
$318.99150-01 Combination Coupling * High Quality Combination Coupling* Max. Gross Trailer Weight 20000 Lbs.* Max. Tongue Weight 2500 Lbs.* Ultimate Latch Capacity 5000 Lbs.* Max. Eye X-Section 1-13/16 Inch* Minimum Eye Opening 2-3/8 Inch* Do Not Weld On Any...$318.99 -
150 Combination Coupling
PREMIER
$285.99150 Combination Coupling * High Quality Combination Coupling* 150 Coupling And 155 Ball Capacity MGTW- 10000 Lbs.* One Of Premiers Most Unique And Versatile Couplings Is Our Popular Model 150 Combination Coupling* Whether You Need To Pull A Trailer With...$285.99 -
Washer For 135NT Coupling
PREMIER
$28.55Washer For 135NT Coupling * High Quality Replacement Washer* For 135NT Coupling* Made In USA* Sold Individually* Warranty On Replacement Washers Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part...$28.55 -
Bushing For 135NT Coupling
PREMIER
$15.29Bushing For 135NT Coupling * High Quality Replacement Bushing* For 135NT Coupling* Made In USA* Sold Individually* Warranty On Replacement Bushings Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement...$15.29 -
Lock Nut - 1-3/4 Inch For Use With 135Nt Coupling
PREMIER
$75.47Lock Nut- 1-3/4 Inch For Use With 135Nt Coupling * High Quality Replacement Lock Nut* 1 3/4 Inch* For The Use With 135NT Coupling* Made In USA* Sold Individually* Warranty On Replacement Lock Nuts Against Defects In Workmanship & Material From Date Of...$75.47 -
2400H Slack Reducing Coupling
PREMIER
$781.992400H Slack Reducing Coupling * High Quality Reducing Coupling* Max. Gross Trailer Weight 100000 Lbs.* Max. Tongue Weight 20000 Lbs.* Ultimate Latch Capacity 60000 Lbs. * Max. Eye X-Section 1-13/16 Inch* Minimum Eye Opening 2-3/8 Inch* Do Not Weld On Any...$781.99 -
2400ELA Slack Reducing Coupling Kit
PREMIER
$1,076.992400ELA Slack Reducing Coupling Kit * High Quality Reducing Coupling Kit* Includes: - Coupling- Bolt Kit- Air Chamber- Air Chamber Adapter Bracket - Thimble* Max. Gross Trailer Weight 100000 Lbs.* Max. Tongue Weight 20000 Lbs.* Ultimate Latch Capacity...$1,076.99