Kenworth Parts

Kenworth Parts

Looking to keep your trusty KW in tip-top shape? Well, you've just stumbled upon the motherlode of Kenworth parts at 4 State Trucks. We're not talking about some rinky-dink selection here - we've got everything from A to Z for your beloved Kenworth rig. Whether you're rolling in a classic W900 or cruising in a shiny new T680, we've got the Kenworth parts to keep you humming down the highway. Our team? They're not just parts pickers. These folks eat, sleep, and breathe Kenworth parts.
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  • Seal Tail Shaft For Rockwell RD20145 - Replaces A1205P2590 Seal Tail Shaft For Rockwell RD20145 - Replaces A1205P2590
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    Seal Tail Shaft For Rockwell RD20145 - Replaces A1205P2590

    OPP - ORIGINAL PARTS PROGRAM

    $41.95
    Seal Tail Shaft * High Quality Seal Tail Shaft* For Rockwell RD20145* Replaces OEM # A1205P2590, 100495* Sold Individually* Warranty On Seal Tail Shaft Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket...
    $41.95
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  • Seal Pinion For Rockwell RR20145 - Replaces A1205N2588 Seal Pinion For Rockwell RR20145 - Replaces A1205N2588
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    Seal Pinion For Rockwell RR20145 - Replaces A1205N2588

    OPP - ORIGINAL PARTS PROGRAM

    $52.37
    Seal Pinion * High Quality Seal Pinion* For Rockwell RR20145* Replaces OEM # A1205N2588, 100263* Sold Individually* Warranty On Seal Pinion Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not...
    $52.37
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  • Nut For Pinion & Tail Shaft Rockwell RD-RR2014 - Replaces KIT2637 Nut For Pinion & Tail Shaft Rockwell RD-RR2014 - Replaces KIT2637
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    Nut For Pinion & Tail Shaft Rockwell RD-RR2014 - Replaces KIT2637

    OPP - ORIGINAL PARTS PROGRAM

    $20.89
    Nut Pinion And Tail Shaft * High Quality Nut Pinion And Tail Shaft* For Rockwell RD-RR2014* Replaces OEM # KIT2637* Sold Individually* Warranty On Nut Pinion And Tail Shaft Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    $20.89
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    Nut For Input Shaft Rockwell RD20145 - Replaces KIT2638 Nut For Input Shaft Rockwell RD20145 - Replaces KIT2638
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    Nut For Input Shaft Rockwell RD20145 - Replaces KIT2638

    OPP - ORIGINAL PARTS PROGRAM

    Now: $9.00
    Was: $27.27
    Nut Input Shaft * High Quality Nut Input Shaft* For Rockwell RD20145* Replaces OEM # KIT2638* Sold Individually* Warranty On Nut Input Shaft Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not...
    Now: $9.00
    Was: $27.27
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    Now: $9.00
    Was: $27.27
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  • Locking Nut For Input Shaft DSP40-404 Locking Nut For Input Shaft DSP40-404
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    Locking Nut For Input Shaft DSP40-404

    OPP - ORIGINAL PARTS PROGRAM

    $20.41
    Locknut Input Shaft * High Quality Nut Flanged Lock Output Shaft* Rear Input Shaft For Eaton DSP40-404* Replaces OEM # 128049* Sold Individually* Warranty On Locknut Input Shaft Against Defects In Workmanship & Material From Date Of Purchase*** High...
    $20.41
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    $20.41
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  • Flanged Locking Nut For Pinion RSP40-404 Flanged Locking Nut For Pinion RSP40-404
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    Flanged Locking Nut For Pinion RSP40-404

    AUTOMANN USA

    $17.98
    Nut Flanged Lock Pinion * High Quality Nut Flanged Lock Output Shaft* Rear Output Shaft For Eaton RSP40-404* Replaces OEM # 127589* Sold Individually* Warranty On Nut Flanged Lock Pinion Against Defects In Workmanship & Material From Date Of Purchase***...
    $17.98
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    $17.98
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  • Flanged Locking Nut For Rear Output Shaft Flanged Locking Nut For Rear Output Shaft
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    Flanged Locking Nut For Rear Output Shaft

    AUTOMANN USA

    $18.77
    Nut Flanged Lock Rear Output * High Quality Nut Flanged Lock Output Shaft* Rear Output Shaft For Eaton DSP40-404* Replaces OEM # 127588* Sold Individually* Warranty On Nut Flanged Lock Output Shaft Against Defects In Workmanship & Material From Date Of...
    $18.77
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    $18.77
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  • Oil Seal Rear Output Shaft Oil Seal Rear Output Shaft
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    Oil Seal Rear Output Shaft

    OPP - ORIGINAL PARTS PROGRAM

    $104.99
    Oil Seal Rear Output Shaft * High Quality Oil Seal Rear Output Shaft* Replaces OEM # 127592* Sold Individually* Warranty On Output Shaft Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not...
    $104.99
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    $104.99
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  • Oil Seal Differential Input Shaft For Eaton DSP & RSP40-404 - Replaces 127591 Oil Seal Differential Input Shaft For Eaton DSP & RSP40-404 - Replaces 127591
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    Oil Seal Differential Input Shaft For Eaton DSP & RSP40-404 - Replaces 127591

    OPP - ORIGINAL PARTS PROGRAM

    $46.89
    Oil Seal Differential Input Shaft * High Quality Oil Seal Differential Input Shaft* Replaces OEM # 127591* Sold Individually* Warranty On Input Shaft Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement...
    $46.89
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  • Jost 5th Wheel Top Plate Replaces Holland 5th Wheel Plate FW8, FW2000,FW3501,FW17,FW2500,FW35,FW253
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    Jost 5th Wheel Top Plate Replaces Holland 5th Wheel Plate FW8, FW2000,FW3501,FW17,FW2500,FW35,FW253

    JOST

    $1,329.99
    5th Wheel Top Plate Fits Holland * High Quality 5th Wheel Top Plate* Sold Individually* Warranty On 5th Wheel Top Plates Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not OEM)***** Replaces...
    $1,329.99
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    $1,329.99
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  • Jost 5th Wheel Top Plate Replacement - JSK37USL
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    Jost 5th Wheel Top Plate Replacement - JSK37USL

    JOST

    $1,699.99
    5th Wheel Top Plate * High Quality Cast 5th Wheel Top Plate* Left Hand Release* 50,000 lbs Vertical Load * 150,00 lbs Drawbar Pull* Top Plate With Standard Lube SurfaceFeatures And Benefits* Feature-Locking Bar Engages Regardless Of Adjustment-...
    $1,699.99
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    $1,699.99
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  • JOST 5th Wheel Adjusting Screw
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    JOST 5th Wheel Adjusting Screw

    JOST

    $86.69
    5th Wheel Adjusting Screw * High Quality 5th Wheel Adjusting Screw* Sold Individually* Warranty On 5th Wheel Adjusting Screw Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not OEM)**** This...
    $86.69
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    $86.69
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