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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On Sale
Wheel Seal 4.25 Inches
AFTERMARKET
Now: $3.25Was: $21.69Wheel Seal * High quality WHEEL SEAL* 4.25 inch seal* Type: Trailer Axle* Inner diameter: 4.25 inches* Outer diameter: 6.02 inches* Width: 1 inch* Sold Individually* Warranty on wheel seal against defects in workmanship & material from date of...Now: $3.25Was: $21.69 -
Spring Equalizer Hex Bolt 1.0in -14 x 6-1/2 Inch Grade 8 For Chevrolet, GM
AUTOMANN USA
$11.21Grade 8 Hex Spring Bolt W/ Fine Pitch Replaces FSP00503028, 3822130, 70002002, And ST1004 * High Quality Spring Bolt * Dimensions:- 1 Inch Bolt Diameter- 6-1/2 Inch Bolt Length* Bolt Type- Hex Bolts* Thread- 14* Fine- Pitch* Grade-8* Sold Individually *...$11.21 -
Flange Bolt 5/16 - 18 X 1/2 Inch Grade 8
AUTOMANN USA
$1.01Grade 8 Flange Bolt Replaces 3512558C1, W300602 * High Quality Flange Bolt* 5/16 Inch X 1/2 Inch * Sold Individually * Warranty On Flange Bolts Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part...$1.01 -
Hex Head Flange Bolt 5/8-18 X 1-1/2 Inch Grade 8
AUTOMANN USA
$2.03Grade 8 Hex Head Flange Bolt W/ Fine Pitch Replaces 23-11015-150 And 414076C1 * High Quality Flange Bolt* Dimensions:- 5/8 Inch Bolt Diameter- 1-1/2 Inch Bolt Length* Bolt Type- Flanged Bolt* Thread- 18* Pitch- Fine* Grade- 8* Sold Individually *...$2.03 -
Poly Bushing 0.75 ID X 1.25 OD X 0.96 Inch - E-8684, R308684
AUTOMANN USA
$11.21Poly Bushing Replaces E-8684, R308684 * High Quality Bushing* Poly* Dimensions:- 0.96 Inch Length- 1.25 Inch O.D.- 0.75 Inch I.D.* Sold Individually * Warranty On Bushings Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...$11.21 -
BESTfit Camshaft Bushing 1.5 ID X 1.89 OD X 1.25 Inch - 820183
BESTFIT TRUCK PARTS
$1.01BESTfit 1.5 ID X 1.89 OD X 1.25 Inch Camshaft Bushing * High Quality Camshaft Bushing* Nylon* Dimensions: - 1.50 Inch ID- 1.89 Inch OD- 1.25 Inch Length* Sold Individually* Warranty On Camshaft Bushings Against Defects In Workmanship & Material From Date...$1.01 -
BESTfit Nylon Camshaft Bushing 1.5 ID X 1.75 OD X 1.188 Inch - E1271
BESTFIT TRUCK PARTS
$2.24BESTfit 1.5 ID X 1.75 OD X 1.188 Inch Nylon Camshaft Bushing * High Quality Camshaft Bushing* Nylon* Dimensions: - 1.50 Inch ID- 1.75 Inch OD- 1.188 Inch Length* Sold Individually* Warranty On Camshaft Bushings Against Defects In Workmanship & Material...$2.24 -
Groove Roll Pin 1/2 X 2-3/4 Inch 8204569, 31036 For Volvo
AUTOMANN USA
$2.03Grooved Roll Pin 08204569, 19684R1 * High Quality Groove Pin* 1/2 Inch X 2-3/4 Inch Nominal* Sold Individually * Warranty On Groove Pins Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not...$2.03 -
Cotter Pin 1/4 X 2 Inch - XB5 For Holland
AUTOMANN USA
$1.011/4 X 2 Inch Cotter Pin Replaces XB5 * High Quality Cotter Pin* 1/4 Inch X 2.0 Inch Length* Sold Individually* Warranty On Cotter Pins Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not...$1.01 -
Cotter Pin 1/4 X 3 Inch - E2306, 103426 For Eaton, Fruehauf Axles
AUTOMANN USA
$2.201/4 X 3 Inch Cotter Pin * High Quality Cotter Pin* 1/4 Inch X 3.0 Inch Length* Sold Individually* Warranty On Cotter Pins Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not OEM)**** Replaces...$2.20 -
BESTfit Center Beam Bushing 12 Inch - 2325972, E1338 For Hendrickson
BESTFIT TRUCK PARTS
$161.99BESTfit Center Beam Bushing 2 ID x 2-3/4 OD x 12 Inch W/ 3-9/16 OD Sleeve, Welded Plug * High Quality Center Beam Bushing * Dimensions:- 2 Inch ID - 2 3/4 Inch OD - 12 Inch Length* With 3 9/16 Inch OD Sleeve* Welded Plug* Made In USA* Sold Individually*...$161.99 -
Nylon Brake Camshaft Bushing 1.50 ID X 1.85 OD X 1.70 Inch
AUTOMANN USA
$4.47Nylon Brake Camshaft Bushing Replaces E2551, 1225X804, And 28-1260 * High Quality Camshaft Bushing * Nylon* Dimensions:- 1.50 Inch ID - 1.85 Inch OD - 1.70 Inch Length* Early Meritor Trailer Axle* Sold Individually* Warranty On Camshaft Bushing S Against...$4.47