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Kenworth T300-T450 Shock Absorbers

Enhance your ride with top-notch Kenworth T300-T450 shock absorbers from 4 State Trucks. Featuring trusted brands like Bulldog HD Shocks and BESTfit, these shocks are your go-to for a smoother drive. Update your vehicle's suspension for a better driving experience now!
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  • Gabriel Shock Absorber Replaces 665763, B23548, S23548 For Hendrickson Trailer Suspension Systems

    Gabriel Shock Absorber Replaces 665763, B23548, S23548 For Hendrickson Trailer Suspension Systems

    GABRIEL

    $94.99
    Under Slung Style Replacement Shock Absorber* High Quality Shock Absorber* Sold Individually* Warranty On Shock Absorbers Against Defects In Workmanship & Material From Date Of Purchase*** High...
    09-050013
    SKU:
    09-050013
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $94.99
    Qty in Cart: 0
    Price:
    $94.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Shock Absorber Replaces 66634, 66893, 83203

    Shock Absorber Replaces 66634, 66893, 83203

    OPP - ORIGINAL PARTS PROGRAM

    Now: $11.70
    Was: $45.62
    Shock AbsorberCommercial Truck and Trailer shocks designed as a direct replacement for OE shocks. They designed to deliver an unbeatable ride comfort, control, and performance.* High Quality Shock...
    09-050009
    SKU:
    09-050009
    Truck Class:
    Heavy Duty
    Length Options:
    11 Inch
    Size Options:
    6 Stroke
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    Now: $11.70
    Was: $45.62
    Qty in Cart: 0
    Price:
    Now: $11.70
    Was: $45.62
    Subtotal:
  • Gabriel Shock Absorber 1.63 Inch Bore Replaces 66627, 5045

    Gabriel Shock Absorber 1.63 Inch Bore Replaces 66627, 5045

    AFTERMARKET

    $52.99
    Gabriel Fleetline Trailer Shock Absorber 10.11 - 14.52 InchThe Gabriel Fleetline Trailer Shock Absorber is designed to fit various trailer suspension systems, including Hendrickson, Neway Holland,...
    09-050006
    SKU:
    09-050006
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    Type Options:
    Sleeve Mount
    Length Options:
    14 1/2 Inch
    $52.99
    Qty in Cart: 0
    Price:
    $52.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Gabriel Shock Absorber 1.63 Inch Bore Replaces 85919, 65503

    Gabriel Shock Absorber 1.63 Inch Bore Replaces 85919, 65503

    GABRIEL

    $83.99
    Gabriel Fleetline Steer And Trailer Shock Absorber* High Quality Absorber * 1.63 Inch Bore* Collapsed Length 14.23 Inches* Extended Length 22.48 Inches* Sleeve Mounting* Sold Individually* Warranty...
    09-050004
    SKU:
    09-050004
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $83.99
    Qty in Cart: 0
    Price:
    $83.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Shock Absorber 1.63 Inch Bore Replaces 85000, 65416

    Shock Absorber 1.63 Inch Bore Replaces 85000, 65416

    OPP - ORIGINAL PARTS PROGRAM

    Now: $12.08
    Was: $51.99
    Shock AbsorberThis shock absorber features a 1.63-inch bore and is a direct replacement for Monroe numbers 65416 and 66893, as well as Gabriel number 85000. It's designed to provide reliable...
    09-050002
    SKU:
    09-050002
    Truck Class:
    Heavy Duty
    Length Options:
    12 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    Now: $12.08
    Was: $51.99
    Qty in Cart: 0
    Price:
    Now: $12.08
    Was: $51.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Shock Upper Mounting Stud For Kenworth

    Shock Upper Mounting Stud For Kenworth

    AUTOMANN USA

    $54.99
    Upper Mounting Bracket Stud For Shock Fits KenworthImprove shock stability on your Kenworth truck with the High-Quality Shock Upper Mounting Stud, built for precise installation and heavy-duty...
    02-050905
    SKU:
    02-050905
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $54.99
    Qty in Cart: 0
    Price:
    $54.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Shock Absorber Replaces R711004 For Kenworth T800

    Shock Absorber Replaces R711004 For Kenworth T800

    AUTOMANN USA

    $57.99
    Shock Absorber Fits Kenworth T800Ensure your Kenworth maintains stable handling with this high-quality shock absorber replacing R711004. Designed for the T800, it features an A83200 design, 1...
    02-050017
    SKU:
    02-050017
    Truck Class:
    Heavy Duty
    Length Options:
    6 Inch
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $57.99
    Qty in Cart: 0
    Price:
    $57.99
    Subtotal:
  • Bulldog HD Rear Shock Absorber Replaces 85056, 89441, 65425 For Kenworth T400

    Bulldog HD Rear Shock Absorber Replaces 85056, 89441, 65425 For Kenworth T400

    BULLDOG HD SHOCKS

    $68.99
    Heavy Duty Shock Absorber Fits Kenworth T400Bulldog HD shocks are fleet tested and approved. This is a premium rear replacement shock reengineered to be better than the factory part that came with...
    02-050000009
    SKU:
    02-050000009
    Truck Class:
    Heavy Duty
    Length Options:
    20 Inch
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $68.99
    Qty in Cart: 0
    Price:
    $68.99
    Subtotal:
  • Bulldog HD Front Shock Absorber Replaces 61310478 For Kenworth K300, T170, T270, T370

    Bulldog HD Front Shock Absorber Replaces 61310478 For Kenworth K300, T170, T270, T370

    BULLDOG HD SHOCKS

    $89.99
    Heavy Duty Shock Absorber Fits Kenworth K300, T170, T270 & T370Find premium shock replacements for your truck at 4 State Trucks. We carry these front Bulldog Heavy Duty Shocks, reengineered to last...
    02-050000007
    SKU:
    02-050000007
    Truck Class:
    Heavy Duty
    Length Options:
    25 Inch
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $89.99
    Qty in Cart: 0
    Price:
    $89.99
    Subtotal:
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If your Kenworth T300 or T450 feels bouncy, leans through turns, or rides rough on uneven roads, your shocks may be worn out. Replacing them helps your truck handle better, ride smoother, and reduce stress on other suspension parts.

Shocks for Air Ride Kits & Suspensions

Aftermarket Kenworth T300 and T450 shocks are designed for heavy-duty performance. They absorb road impact, minimize vibration, and keep your truck steady mile after mile. Whether you're running regional routes or multi-state long-hauls, installing a set of quality shocks will improve comfort, tire wear, and overall control. When installing new shocks, take a look at the hardware and bushings that keep them secure: - Shock bushings help isolate vibration and cut down noise. - Bolt kits and spacers ensure tight, aligned mounting. - Upper mounts and studs prevent rattling and looseness under load. Enhance your driving experience by adding additional upgrades, like Kenworth T300 or T450 level valves, Kenworth T300 or T450 air ride kits, and mounting components to help bring back a smooth, stable ride.

Frequently Asked Questions About Kenworth T300-T450 Shock Absorbers

How do I know which shock absorbers fit my Kenworth T300-T450?

Shock absorber fitment depends on the specific model year, axle position (front or rear), and original suspension configuration of your truck. Always check the part number against your truck's VIN or existing shock before ordering, and compare listed specifications such as length and mounting style to what is currently installed on your vehicle. If you are unsure, our team can help you cross-reference the correct part for your specific Kenworth setup.

How often should shock absorbers be replaced on a Kenworth T300-T450?

There is no fixed mileage interval since wear depends on load, road conditions, and driving habits. Common signs that shocks need replacing include excessive bouncing, uneven tire wear, leaking fluid on the shock body, or a noticeably rougher ride than usual. Many fleets inspect shocks during regular PM services to catch wear before it affects handling or tire life.

Can I replace shock absorbers myself, or should I have a professional do it?

Shock absorber replacement is a common DIY job for drivers and shops with basic tools and a lift or jack stands, since it typically involves removing mounting bolts and swapping the old unit for the new one. However, if your truck has air suspension or other components tied into the shock mounts, or if you're not comfortable working under a loaded vehicle, having a qualified technician handle the installation is a safer option.

Do these shock absorbers come with a warranty?

Warranty coverage varies by manufacturer and specific product, so we recommend checking the warranty details listed on each product page before purchasing. If you have questions about coverage for a specific shock absorber, our customer service team can provide that information before you buy.

What's the difference between OEM and aftermarket shock absorbers for these models?

OEM shock absorbers are built to match the exact specifications Kenworth originally used on the T300-T450 series, while aftermarket options are manufactured by third-party companies to fit the same applications, often at a different price point. Both can offer reliable performance, but it's worth comparing load ratings, materials, and brand reputation to find the option that best matches your truck's use and your budget.


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