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Peterbilt 388 Shock Absorbers

Experience a smoother ride with top-notch Peterbilt 388 Shock Absorbers from 4 State Trucks. Get confidence and comfort behind the wheel with shock absorbers tailored to your driving needs, vehicle weight, and suspension condition. Elevate your driving experience with superior comfort and improved ride quality.
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  • Bulldog Suspension Shock Front, Extended Length 26.85 Inch, Collapsed 16.61 Inch

    Bulldog Suspension Shock Front, Extended Length 26.85 Inch, Collapsed 16.61 Inch

    BULLDOG HD SHOCKS

    $42.33
    Front Suspension Shock Extended Length 26.85 Inch, Collapsed 16.61 InchRestore dependable steering response and ride quality with this high-quality Bulldog Front Suspension Shock designed for...
    09-05000005
    SKU:
    09-05000005
    Product Type:
    Frame & Chassis
    Style Options:
    Heavy Duty
    Length Options:
    27 Inch
    Make:
    Universal Items
    $42.33
    Qty in Cart: 0
    Price:
    $42.33
    Subtotal:
  • Load-Share Steer Axle Air Ride Upgrade Kit For Peterbilt 365, 367, 386, 388 & 389

    Load-Share Steer Axle Air Ride Upgrade Kit For Peterbilt 365, 367, 386, 388 & 389

    LOAD-SHARE SUSPENSIONS

    $1,203.99 - $1,305.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 365 2008 thru 2023* Fits Peterbilt 367 2008 thru 2024* Fits Peterbilt 386 2008 thru 2016 * Fits Peterbilt 388 2008 thru 2014* Fits...
    PPR_300208
    SKU:
    PPR_300208
    Product Type:
    Frame & Chassis
    Style Options:
    Double Convolute
    Position:
    Kit Full
    Make:
    Peterbilt
    Type Options:
    Bolt Mount
    $1,203.99 - $1,305.99
    Qty in Cart: 0
    Price:
    $1,203.99 - $1,305.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Aluminum Front Shock Bracket For Peterbilt COE & Conventional Replaces 02-01782, 13003AA & B63-6000

    Aluminum Front Shock Bracket For Peterbilt COE & Conventional Replaces 02-01782, 13003AA & B63-6000

    AUTOMANN USA

    $86.99
    Aluminum Front Shock Bracket Replaces 02-01782, 13003AA & B63-6000 Fits Peterbilt COE & ConventionalUpgrade your truck's suspension system with the Aluminum Front Shock Bracket, a durable replacement...
    01-051030
    SKU:
    01-051030
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    $86.99
    Qty in Cart: 0
    Price:
    $86.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Gabriel Steer & Drive Shock Absorber Upgrade Replaces 85311, 56101Z1030, 56101Z2000 For Peterbilt W/ Air Leaf & Air Trac Suspension

    Gabriel Steer & Drive Shock Absorber Upgrade Replaces 85311, 56101Z1030, 56101Z2000 For Peterbilt W/ Air Leaf & Air Trac Suspension

    GABRIEL

    $69.99
    Fleetline Steer & Drive Shock AbsorberImprove ride quality and suspension control on your Peterbilt with the Gabriel Shock Absorber, engineered to replace 85311, 56101Z1030, and 56101Z2000. Designed...
    01-050020
    SKU:
    01-050020
    Truck Class:
    Heavy Duty
    Length Options:
    24 Inch
    Size Options:
    9 Stroke
    Product Type:
    Frame & Chassis
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    $69.99
    Qty in Cart: 0
    Price:
    $69.99
    Subtotal:
  • Bulldog HD Rear Shock Absorber 8.9 Stroke Replaces 03-04629, 03-07281, 03-07421 For Peterbilt

    Bulldog HD Rear Shock Absorber 8.9 Stroke Replaces 03-04629, 03-07281, 03-07421 For Peterbilt

    BULLDOG HD SHOCKS

    $73.99
    Heavy Duty Shock Absorber Fits Peterbilt 330, 335, 359, 362, 375, 377, 378, 379, 386, 389, 567 & 587Bulldog HD shocks are fleet tested and approved. This is a premium rear replacement shock...
    01-050000005
    SKU:
    01-050000005
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Length Options:
    23 Inch
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    $73.99
    Qty in Cart: 0
    Price:
    $73.99
    Subtotal:
  • Shock Bolt Kit, 14.Inch Ride Heights - KIT11104 For Meritor

    Shock Bolt Kit, 14.Inch Ride Heights - KIT11104 For Meritor

    AUTOMANN USA

    $16.18
    Shock Bolt Kit Replaces Kit11104* High Quality Shock Bolt Kit* Consists Of  - (1) Cap Screw 3/4 Inch X 3-1/2 Inch - (1) Shock Bolt 3/4in -10 x 4-1/2in Lg - (2) Lock Nut 3/4in -10* 14.Inch Ride...
    09-05250038
    SKU:
    09-05250038
    Length Options:
    3 1/2 Inch
    Material Options:
    Steel
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $16.18
    Qty in Cart: 0
    Price:
    $16.18
    Subtotal:
  • Shock Spacer - 1.5 In OD, 0.81 In ID For Hendrickson Turner

    Shock Spacer - 1.5 In OD, 0.81 In ID For Hendrickson Turner

    AUTOMANN USA

    $5.67
    Shock Spacer Replaces E11831, A20913* High Quality Shock Spacer* 1 1/2 In OD * 0.810 Inch ID* 1.15625In Thickness* Sold Individually * Warranty On Shock Spacers Against Defects In Workmanship &...
    09-05250082
    SKU:
    09-05250082
    Diameter Options:
    1 1/2 Inch
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $5.67
    Qty in Cart: 0
    Price:
    $5.67
    Subtotal:
  • Shock Spacer - 1 1/2 In OD, 3/4 In ID For Hendrickson Turner

    Shock Spacer - 1 1/2 In OD, 3/4 In ID For Hendrickson Turner

    AUTOMANN USA

    $6.34
    0.78 Inch Tall Shock Spacer* High Quality Shock Spacer* 3/4 Inch ID* 1.5In OD * 0.78 Inch Height * Sold Individually * Warranty On Shock Spacers Against Defects In Workmanship & Material From Date Of...
    09-05250081
    SKU:
    09-05250081
    Material Options:
    Brass
    Diameter Options:
    3/4 Inch
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $6.34
    Qty in Cart: 0
    Price:
    $6.34
    Subtotal:
  • 1.5 Inch Shock Spacer, 2.25 In OD, 0.77 In ID

    1.5 Inch Shock Spacer, 2.25 In OD, 0.77 In ID

    AUTOMANN USA

    $9.25
    1.5 Inch Shock Spacer Replaces A23645Maintain perfect suspension alignment with this reliable 1.5 Inch Shock Spacer. With a 2.25-inch OD, 0.77-inch ID, and 1.5-inch height, it strengthens your shock...
    09-05250083
    SKU:
    09-05250083
    Material Options:
    Brass
    Diameter Options:
    3/4 Inch
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $9.25
    Qty in Cart: 0
    Price:
    $9.25
    Subtotal:
  • Rear Upper Shock Bracket Chalmer

    Rear Upper Shock Bracket Chalmer

    AFTERMARKET

    $71.99
    Chalmers Upper Shock Bracket Replaces 800154. 3516765C1Keep your Chalmers suspension aligned with the Rear Upper Shock Bracket. Measuring 2.5 inches center-to-center, it ensures an exact fit for...
    29-05100277
    SKU:
    29-05100277
    Material Options:
    Steel
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $71.99
    Qty in Cart: 0
    Price:
    $71.99
    Subtotal:
  • Gabriel Fleetline Steer & Drive Shock Absorber Replaces 65113, 65177, 65434

    Gabriel Fleetline Steer & Drive Shock Absorber Replaces 65113, 65177, 65434

    AFTERMARKET

    $86.99
    Steer & Drive Shock Absorber Fits Ford, International, Isuzu, Peterbilt* High Quality Drive Shock* Extended Length 21.02 Inch* Collapsed Length 13.23 Inch* Sold Individually* Warranty On Drive Shocks...
    29-0500020
    SKU:
    29-0500020
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Chevrolet
    Make:
    International
    Make:
    Trailer
    Make:
    Bus
    Make:
    GMC
    Make:
    Peterbilt
    Make:
    Freightliner
    Make:
    Kenworth
    Make:
    Ford
    Make:
    Isuzu
    Product Type:
    Frame & Chassis
    $86.99
    Qty in Cart: 0
    Price:
    $86.99
    Subtotal:
  • Gabriel Fleetline Drive Shock Absorber Replaces 65495, 66436 For Kenworth & Peterbilt

    Gabriel Fleetline Drive Shock Absorber Replaces 65495, 66436 For Kenworth & Peterbilt

    AFTERMARKET

    $92.99
    Drive Shock Absorber Fits Kenworth & PeterbiltEnhance the performance and stability of your Kenworth or Peterbilt truck with the Gabriel Fleetline Drive Shock Absorber. This high-quality drive shock...
    29-0500005
    SKU:
    29-0500005
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Frame & Chassis
    $92.99
    Qty in Cart: 0
    Price:
    $92.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Monroe Magnum Shock Absorber For Drive Axle Suspension W/ Flex Air & AG380 Suspension

    Monroe Magnum Shock Absorber For Drive Axle Suspension W/ Flex Air & AG380 Suspension

    OPP - ORIGINAL PARTS PROGRAM

    Now: $25.67
    Was: $97.60
    Yellow Monroe Magnum Shock Absorber Fits Drive Axle Suspension W/ Flex AirChoose a reliable suspension replacement with this Monroe Magnum Shock Absorber for drive axle suspension. Made with a...
    29-050006
    SKU:
    29-050006
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Diameter Options:
    5/8 Inch
    Color:
    Yellow
    Length Options:
    30 1/2 Inch
    Product Type:
    Frame & Chassis
    Now: $25.67
    Was: $97.60
    Qty in Cart: 0
    Price:
    Now: $25.67
    Was: $97.60
    Subtotal:
  • FREE SHIPPING OVER $249
    Gabriel Shock Absorber Replaces 85069, 661400, 66584440Y For Peterbilt & Kenworth

    Gabriel Shock Absorber Replaces 85069, 661400, 66584440Y For Peterbilt & Kenworth

    GABRIEL

    $71.99
    Gabriel 85069 Shock AbsorberMaintain superior ride control on your Peterbilt or Kenworth truck with this Gabriel Fleetline Shock Absorber, replacing OE numbers 85069, 661400, and 66584440Y. Designed...
    29-050017
    SKU:
    29-050017
    Length Options:
    15 Inch
    Truck Class:
    Heavy Duty
    Size Options:
    10 Stroke
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Frame & Chassis
    $71.99
    Qty in Cart: 0
    Price:
    $71.99
    Subtotal:
  • Gas SLX Adjustable Shock Absorber Replaces ACHF113 For Peterbilt And Volvo

    Gas SLX Adjustable Shock Absorber Replaces ACHF113 For Peterbilt And Volvo

    AFTERMARKET

    $89.99
    Gas SLX Adjustable Shock Absorber Fits Peterbilt And VolvoOptimize the ride and handling of your Peterbilt or Volvo with the Gas SLX Adjustable Shock Absorbe. Compatible with 12-gauge front axle air...
    29-050010
    SKU:
    29-050010
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Make:
    Volvo
    Product Type:
    Frame & Chassis
    $89.99
    Qty in Cart: 0
    Price:
    $89.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Load-Share Shock Bolt With Shoulder Used In Front Air Ride Kits

    Load-Share Shock Bolt With Shoulder Used In Front Air Ride Kits

    LOAD-SHARE SUSPENSIONS

    $60.99
    Shock BoltLooking for a reliable shock bolt for your front air ride kit or other projects? Check out our 3/4-inch Shock Bolt with Shoulder! It's the perfect fit for securely mounting shocks with ease...
    29-050007
    SKU:
    29-050007
    Width Options:
    3/4 Inch
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $60.99
    Qty in Cart: 0
    Price:
    $60.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Shock Bushing 1.5 Inch Od X 3/4 Inch ID

    Shock Bushing 1.5 Inch Od X 3/4 Inch ID

    ENERGY SUSPENSION

    $4.07
    Shock Bushing* High Quality Shock Bushing* Made Of Polyurethane* 1/2 Hour Glass, 1-1/2 Inch O.D. X 3/4 Inch I.D. * 4 Pieces* Pack Of 4, One Package Per Shock* Sold Individually* Made In USA* Warranty...
    29-050001
    SKU:
    29-050001
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Diameter Options:
    1 1/2 Inch
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $4.07
    Qty in Cart: 0
    Price:
    $4.07
    Subtotal:
  • FREE SHIPPING OVER $249
    Peterbilt HD Front Shock Absorber For Steer Axle Replaces 711002 by Bulldog

    Peterbilt HD Front Shock Absorber For Steer Axle Replaces 711002 by Bulldog

    BULLDOG HD SHOCKS

    $71.99
    Commercial Grade Heavy Duty Shock Absorber W/ Double Lip SealFind premium shock replacements for your truck at 4 State Trucks. We carry these front Bulldog Heavy Duty Shocks, reengineered to last...
    29-050000013
    SKU:
    29-050000013
    Truck Class:
    Heavy Duty
    Length Options:
    19 Inch
    Make:
    Peterbilt
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $71.99
    Qty in Cart: 0
    Price:
    $71.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Shock Bushing 1.75 Inch OD X 1 Inch ID - Pack Of 4

    Shock Bushing 1.75 Inch OD X 1 Inch ID - Pack Of 4

    ENERGY SUSPENSION

    $8.52
    Bushings For Shocks* High Quality Shock Absorber Bushings* Made Of Polyurethane * 1/2 Hour Glass, 1-3/4 Inch O.D. X 1 Inch I.D. * Pack Of 4, One Package Per Shock* Sold Individually* Made In USA*...
    29-050000
    SKU:
    29-050000
    Color:
    Red
    Truck Class:
    Universal
    Location:
    Made In USA
    Diameter Options:
    1 Inch
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $8.52
    Qty in Cart: 0
    Price:
    $8.52
    Subtotal:
  • 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:
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Adding your products to cart

If your Peterbilt 388 rides rough, leans in turns, or feels unstable on uneven roads, your shocks may be worn out. Replacing them helps restore stability, comfort, and control, especially when you're running heavy loads or long routes.

Find Top-Performing Shock Brands for Your Pete 388

Aftermarket Peterbilt 388 shocks are built for tough, commercial use. They absorb impact, cut vibration, and keep your truck steady mile after mile. Choose from heavy-duty options that match your setup, including Hendrickson Turner, Gabriel Fleetline, and Monroe 65 Series replacements. Each is designed for durability, proper fitment, and consistent performance under load. When you install new shocks, inspect your mounting hardware and bushings too: - Bushings reduce vibration and prevent metal-on-metal contact. - Bolt kits and spacers keep the shocks tight and properly aligned. - Upper mounts and studs stop rattles and clunking under load. If you notice extra bounce, uneven tire wear, or steering looseness, it's time to refresh your suspension. Pair your replacement shocks with additional driving and handling upgrades, likePeterbilt 388 air ride kits, Peterbilt 388 air springs and various mounting components designed for stable, smooth driving.

Frequently Asked Questions About Peterbilt 388 Shock Absorbers

Will these shock absorbers fit my Peterbilt 388 without modification?

Shock absorbers in this category are built to match the original equipment specifications for the Peterbilt 388, including correct length, eyelet or stem configuration, and mounting hole spacing. However, because the 388 was produced with different front and rear suspension setups over its production run, it's important to check your truck's axle position (front or rear), suspension type, and model year against the fitment details listed on each product page before ordering.

How do I know if it's time to replace my shocks?

Common signs of worn shock absorbers include excessive bouncing or cab sway over bumps, uneven tire wear, visible oil leakage from the shock body, or a harsh, jarring ride that wasn't there before. If your truck feels less stable during braking or cornering, or you notice physical damage like dents or a bent shaft, it's a good indication that replacement is needed.

Should I replace shock absorbers one at a time or in pairs?

Most technicians and fleet maintenance guides recommend replacing shocks in pairs (both front or both rear) at the same time. This helps maintain even handling and ride quality on both sides of the truck, since one worn shock paired with a new one can cause uneven damping and an inconsistent ride.

What is the typical lifespan of a shock absorber on a Peterbilt 388?

Shock absorber life varies significantly based on load weight, road conditions, driving style, and duty cycle. There isn't a single mileage or time figure that applies to every truck, so it's best to inspect shocks regularly during routine maintenance and replace them based on visible wear, leakage, or performance issues rather than mileage alone.

Are these shock absorbers made by the original equipment manufacturer or aftermarket brands?

This category includes options from both OEM and reputable aftermarket manufacturers. Each product listing specifies the brand and whether it is OEM or aftermarket, along with material and construction details, so you can choose based on your budget, preferred brand, and performance needs.


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