Semi-Truck Trailer Parts

Semi-Truck Trailer Parts

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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  • BESTfit 3 Leaf Trailer Spring - 10000 Lbs. Capacity For Fruehauf
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    BESTfit 3 Leaf Trailer Spring - 10000 Lbs. Capacity For Fruehauf

    BESTFIT TRUCK PARTS

    $210.99
    BESTfit Fruehauf Trailer Spring - 3 Leaves Replaces UCF004784001  - Trailer Spring - 3 Inch Width - 1 7/8 Inch Arch - 21 1/4 S.E./I.E. - Number Of Leaves- 3  - Capacity- 10000 Lbs.  - Center Bolt Size- 1/2 X...
    $210.99
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    $210.99
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  • BESTfit Air Spring Triple Convoluted 
8042, 3B12-322, 69747, R001015, 90557236 For Hendrickson Aux SAF Holland/Neway
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    BESTfit Air Spring Triple Convoluted 8042, 3B12-322, 69747, R001015, 90557236 For Hendrickson Aux SAF Holland/Neway

    BESTFIT TRUCK PARTS

    $254.99
    Triple Convoluted Air Spring  - Air Spring  - Dimensions:  - 18.9 Inch Maximum Height   - 12.8 Inch Maximum Diameter - Triple Convoluted Design - 5400 Pounds At 80 PSI - 6800 Pounds At 100 PSI - 79 CPM -...
    $254.99
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    $254.99
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  • BESTfit Quick Align Concentric Collar For Hendrickson BESTfit Quick Align Concentric Collar For Hendrickson
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    BESTfit Quick Align Concentric Collar For Hendrickson

    BESTFIT TRUCK PARTS

    $13.03
    Hendrickson Concentric Alignment Collar  - Collar - 4 Inch - Concentric - Nipple In Center - Trailer And Lift - Quick-Align Type - Sold Individually - Warranty On Collars Against Defects In Workmanship & Material...
    $13.03
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    $13.03
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  • BESTfit Equalizer and Bolt Kit 1778401, 24366-01, 1629001 For Hutch
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    BESTfit Equalizer and Bolt Kit 1778401, 24366-01, 1629001 For Hutch

    BESTFIT TRUCK PARTS

    $100.97
    Replacement Equalizer and Bolt Kit  - Equalizer - Consists Of:  - (1) Equalizer  - (1) Repair Kit - Made In USA - Sold Individually - Warranty On Equalizers Against Defects In Workmanship & Material From Date Of...
    $100.97
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    $100.97
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  • BESTfit Hex Cap Screw 3/8in -16 x 1 Inch Grade 8 - 2309440100 For Watson & Chalin
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    BESTfit Hex Cap Screw 3/8in -16 x 1 Inch Grade 8 - 2309440100 For Watson & Chalin

    BESTFIT TRUCK PARTS

    $1.01
    BESTfit Grade 8 Hex Cap Screw Replaces 2309440100  - Cap Screw - Dimensions: - 3/8 Inch Bolt Diameter - 1.0 Inch Bolt Length - Bolt Type- Hex Bolts - Thread- 16 - Grade- 8 - Sold Individually - Warranty On Cap...
    $1.01
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    $1.01
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  • BESTfit Pivot Connection Kit - SRK-64 For Watson & Chalin
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    BESTfit Pivot Connection Kit - SRK-64 For Watson & Chalin

    BESTFIT TRUCK PARTS

    $361.99
    BESTfit Pivot Connection Kit Replaces SRK64. SRK64W  - Pivot Connection Kit - Consists Of  - (2) Bolt 1-1/8 Inch-12 x 10-1/2 Inch - (4) Wear Pad - (2) Pivot Bushing - (2) 1-1/8 Inch Lock Nut  - (4) 1-1/8 Inch U-Bolt...
    $361.99
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    $361.99
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  • BESTfit Air Spring Rolling Lobe 68151, 9807, W013589807 For Neway / Holland
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    BESTfit Air Spring Rolling Lobe 68151, 9807, W013589807 For Neway / Holland

    BESTFIT TRUCK PARTS

    $152.99
    Replacement Air Spring Rolling Lobe  - Air Spring Rolling Lobe - Plastic - Dimensions:  - Design Height- 8.50 Inch  - Top Plate Diameter- 9.00 Inch  - Top Plate C To C Diameter- 5.50 Inch  - Min. Height- 4.50 Inch ...
    $152.99
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    $152.99
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  • BESTfit Air Spring Rolling Lobe 9978, 1R12-1179, 67588, AB1DK23I-P959 For Hendrickson Trailer
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    BESTfit Air Spring Rolling Lobe 9978, 1R12-1179, 67588, AB1DK23I-P959 For Hendrickson Trailer

    BESTFIT TRUCK PARTS

    $159.99
    Replacement Air Spring Rolling Lobe  - Air Spring Rolling Lobe - Plastic - Dimensions:  - Design Height- 11.50 Inch  - Top Plate Diameter- 9.00 Inch  - Top Plate C To C Diameter- 5.50 Inch  - Bottom Plate Diameter- 10...
    $159.99
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    $159.99
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  • BESTfit Air Spring Double Convoluted 7405, 2B12-313, 64494, 1038401
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    BESTfit Air Spring Double Convoluted 7405, 2B12-313, 64494, 1038401

    BESTFIT TRUCK PARTS

    $231.99
    Air Spring Double Convoluted Replacement  - Air Spring - Dimensions:  - Design Height- 9.50 Inch  - Top Plate Diameter- 9.00 Inch  - Top Plate C To C Diameter- 5.50 Inch  - Bottom Plate Diameter- 9.00 Inch  - Bottom...
    $231.99
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    $231.99
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  • BESTfit Air Spring Rolling Lobe Replaces 9039, 1R12-095, 64260, 90557023
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    BESTfit Air Spring Rolling Lobe Replaces 9039, 1R12-095, 64260, 90557023

    BESTFIT TRUCK PARTS

    $130.99
    Replacement Neway / Holland Trailer Air Spring Rolling Lobe  - Air Spring Rolling Lobe - Dimensions:  - Design Height- 7.50 Inch  - Top Plate Diameter- 9.00 Inch  - Top Plate C To C Diameter- 5.50 Inch  - Bottom Plate...
    $130.99
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    $130.99
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  • BESTfit Leaf Spring Shackle E5267, E-5267 For E4 Hendrickson
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    BESTfit Leaf Spring Shackle E5267, E-5267 For E4 Hendrickson

    BESTFIT TRUCK PARTS

    $275.99
    Replacement Hendrickson Shackle E4  - Shackle - 5 Inch C To C - 7/8 Inch-9 Holes - Made In USA - Sold Individually - Warranty On Shackles Against Defects In Workmanship & Material From Date Of Purchase - Aftermarket...
    $275.99
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    $275.99
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  • BESTfit Equalizer and Bolt Kit 097800, 1615801, R309475 For Hutch
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    BESTfit Equalizer and Bolt Kit 097800, 1615801, R309475 For Hutch

    BESTFIT TRUCK PARTS

    $115.99
    Replacement Equalizer and Bolt Kit  - Equalizer - Consists Of:   - (1) Equalizer   - (1) Equalizer Bolt Kit - Made In USA - Sold Individually - Warranty On Equalizers Against Defects In Workmanship & Material From Date...
    $115.99
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    $115.99
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