Semi-Truck Trailer Parts
Get top-notch semi-truck trailer parts at 4 State Trucks. From automatic slack adjusters to air bags and torque arms, we've got what your rig needs. Our parts are known for quality and reliability, making maintenance hassle-free. Looking for fuel tank straps or air tanks? We've got those too. Shop now and keep your truck in peak condition.
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King Pin .375 Inch SAE Plate Mushroom
AUTOMANN USA
$65.98King Pin SAE * High Quality King Pin* .375 Inch Plate Mushroom* Sold Individually* Warranty On King Pin Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not OEM)**** This Item Is Special Order...$65.98 -
6 Inch 1.5-10 Spline Air Brake Slack Adjuster Straight
AUTOMANN USA
$74.04Slack Adjuster * High Quality Slack Adjuster* Includes:- Anchor Bracket Plate - Flat Stud - Bracket Kit* Automatic- Haldex Type* 6 Inch Arm Length* For Trailer Axle With 16.5 Inch Brake* Sold Individually* Warranty On Slack Adjuster Against Defects In...$74.04 -
6 Inch 1.5-28 Spline Air Brake Slack Adjuster Straight
BESTFIT TRUCK PARTS
$65.07Slack Adjuster * High quality automatic adjuster* Spline: 1.5 inches - 28* 6 inch arm length* Type: unhanded* Chamber Size: 30* Sold Individually* Warranty on slack adjuster against defects in workmanship & material from date of purchase*** High quality...$65.07 -
Brake Automatic Slack Adjuster 1.5-28 Spline 5.5 Inch Straight
BESTFIT TRUCK PARTS
$71.49Auto Slack Adjuster Merritor Style 5.5 Inch Straight Arm * High quality automatic adjuster* Type: Unhanded* Chamber size: 24, 30* Sold Individually* Warranty on slack adjuster against defects in workmanship & material from date of purchase*** High...$71.49 -
Trailer Axle Slack Adjuster 1.5-28 Spline 5.5 Inch Straight
BESTFIT TRUCK PARTS
$65.07Slack Adjuster * High quality Automatic Adjuster* 5.5 inch * Type: Trailer axle* Bracket type: plate and flat stud* 16.5 inch brake* Sold Individually* Warranty on slack adjuster against defects in workmanship & material from date of purchase*** High...$65.07 -
Minimizer Paintable Poly Tanker Front Or Middle Fender Section For Tandem Axles
MINIMIZER
$393.99Paintable 44 X 3 X 26 Inch Fender Section For Tank Trailer * High Quality Fender* Made Of Poly* Paintable* 44 Inch Length * 26 Inch Width* 3 Inch Height* For Tandem Axles* Bracket Not Included* Made In USA* Sold Individually* Warranty On Fenders Against...$393.99 -
Minimizer Liquid Platium Poly Tanker Front Or Middle Fender Section For Tandem Axles
MINIMIZER
$269.99Liquid Platium 44 X 3 X 26 Inch Fender Section For Tank Trailer * High Quality Fender* Made Of Poly* Liquid Platium* 44 Inch Length * 26 Inch Width* 3 Inch Height* For Tandem Axles* Bracket Not Included* Made In USA* Sold Individually* Warranty On...$269.99 -
Minimizer Carbon Fiber Poly Tanker Front Or Middle Fender Section For Tandem Axles
MINIMIZER
$269.99Carbon Fiber 44 X 3 X 26 Inch Fender Section For Tank Trailer * High Quality Fender* Made Of Poly* Carbon Fiber* 44 Inch Length* 26 Inch Width* 3 Inch Height* For Tandem Axles* Bracket Not Included* Made In USA* Sold Individually* Warranty On Fenders...$269.99 -
Minimizer White Poly Tanker Front Or Middle Fender Section For Tandem Axles
MINIMIZER
$220.99White 44 X 3 X 26 Inch Fender Section For Tank Trailer * High Quality Fender* Made Of Poly* White* 44 Inch Length * 26 Inch Width* 3 Inch Height* For Tandem Axles* Bracket Not Included* Made In USA* Sold Individually* Warranty On Fenders Against Defects...$220.99 -
Minimizer Red Poly Tanker Front Or Middle Fender Section For Tandem Axles
MINIMIZER
$220.99Red 44 X 3 X 26 Inch Fender Section For Tank Trailer * High Quality Fender* Made Of Poly* Red* 44 Inch Length * 26 Inch Width* 3 Inch Height* For Tandem Axles* Bracket Not Included* Made In USA* Sold Individually* Warranty On Fenders Against Defects In...$220.99 -
Minimizer Galvanized Poly Tanker Front Or Middle Fender Section For Tandem Axles
MINIMIZER
$247.99Galvanized 44 X 3 X 26 Inch Fender Section For Tank Trailer * High Quality Fender* Made Of Poly* Galvanized* 44 Inch Length * 26 Inch Width* 3 Inch Height* For Tandem Axles* Bracket Not Included* Made In USA* Sold Individually* Warranty On Fenders...$247.99 -
Minimizer Diamond Plate Silver Poly Tanker Front Or Middle Fender Section For Tandem Axles
MINIMIZER
$249.99Diamond Plate Silver 44 X 3 X 26 Inch Fender Section For Tank Trailer * High Quality Fender* Made Of Poly* Diamond Plate Silver* 44 Inch Length * 26 Inch Width* 3 Inch Height* For Tandem Axles* Bracket Not Included* Made In USA* Sold Individually*...$249.99