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4 State Trucks semi truck parts and chrome accessories sale – shop big rig deals online
4 State Trucks semi truck parts and chrome accessories sale – shop big rig deals online

Kenworth W990 Drive Axle Springs & Hangers

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Poly Insulator 25115012 For Mack

    Poly Insulator 25115012 For Mack

    AFTERMARKET

    $81.99
    Mack Truck Replacement Insulator* High Quality Insulator* Poly * Dimensions:  - 1.75 Inch Button Size  - 6.00 Inch Length  - 4.50 Inch Width  - 3.00 Inch Height* Made In USA* Sold Individually*...
    11-05100051
    SKU:
    11-05100051
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Make:
    Mack
    Height Options:
    3 Inch
    Width Options:
    4 1/2 Inch
    Length Options:
    6 Inch
    Material Options:
    Plastic/Poly
    $81.99
    Qty in Cart: 0
    Price:
    $81.99
    Subtotal:
  • Poly Upper Insulator Load Pad 10QK1065A, 25121508, R307481 For Mack SS34-38 Series

    Poly Upper Insulator Load Pad 10QK1065A, 25121508, R307481 For Mack SS34-38 Series

    AFTERMARKET

    $86.99
    Replacement Mack Insulator Pad-Upper* High Quality Insulator* Poly* Dimensions:  - 6.00 Inch Length  - 4.50 Inch Width  - 2.375 Inch Height  - 1.75 Inch Button Size* Upper* Made In USA* Sold...
    11-05100055
    SKU:
    11-05100055
    Product Type:
    Frame & Chassis
    Material Options:
    Plastic/Poly
    Height Options:
    2 Inch
    Position:
    Upper
    Width Options:
    4 1/2 Inch
    Length Options:
    6 Inch
    Make:
    Mack
    $86.99
    Qty in Cart: 0
    Price:
    $86.99
    Subtotal:
  • Premium Lower Insulator Load Pad 10QK36B, 10QK36C, 21036254

    Premium Lower Insulator Load Pad 10QK36B, 10QK36C, 21036254

    AFTERMARKET

    $47.22
    Lower Load Pad Replacement* High Quality Insulator* Dimensions:  - Length- 6.00 Inch  - Height- 3.75 Inch  - Button Size- 1.75 Inch* Lower* Made In USA* Sold Individually* Warranty On Insulators...
    11-05100038
    SKU:
    11-05100038
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Make:
    Mack
    Height Options:
    3 1/2 Inch
    Length Options:
    6 Inch
    Position:
    Lower
    $47.22
    Qty in Cart: 0
    Price:
    $47.22
    Subtotal:
  • Poly Lower Insulator Load Pad 10QK388, R307480, 25125064 For Mack SS34- 38-44 Series

    Poly Lower Insulator Load Pad 10QK388, R307480, 25125064 For Mack SS34- 38-44 Series

    AFTERMARKET

    $126.99
    Mack Lower Load Pad* High Quality Insulator* Poly* Dimensions:  - 6.00 Inch Length  - 3.75 Inch Height* Made In USA* Sold Individually* Warranty On Insulators Against Defects In Workmanship &...
    11-05100045
    SKU:
    11-05100045
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Make:
    Mack
    Height Options:
    3 1/2 Inch
    Length Options:
    6 Inch
    Material Options:
    Plastic/Poly
    $126.99
    Qty in Cart: 0
    Price:
    $126.99
    Subtotal:
  • Poly Lower Insulator Load Pad 10QK389, 25114877 For Mack

    Poly Lower Insulator Load Pad 10QK389, 25114877 For Mack

    AFTERMARKET

    $174.99
    Replacement Mack Lower Load Pad* High Quality Insulator* Poly* Dimensions:  - 7.00 Inch Length  - 4.375 Inch Height  - 2.00 Inch Button Size* Lower* Made In USA* Sold Individually* Warranty On...
    11-05100041
    SKU:
    11-05100041
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Make:
    Mack
    Material Options:
    Plastic/Poly
    Height Options:
    4 Inch
    Position:
    Lower
    Length Options:
    7 Inch
    $174.99
    Qty in Cart: 0
    Price:
    $174.99
    Subtotal:
  • Lower Insulator Load Pad 10QK343P13. 10QK36. 10QK36A. 10QK36AP1. 10QK36AP2 For Mack

    Lower Insulator Load Pad 10QK343P13. 10QK36. 10QK36A. 10QK36AP1. 10QK36AP2 For Mack

    AFTERMARKET

    $48.29
    Lower Load Pad ReplacementEnhance your Mack suspension system with this Mack Lower Load Pad, made for SS 34-44 Series, SW/ST34 Series applications. This durable aftermarket replacement offers optimal...
    11-05100037
    SKU:
    11-05100037
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Make:
    Mack
    Height Options:
    3 1/2 Inch
    Length Options:
    6 Inch
    Position:
    Lower
    $48.29
    Qty in Cart: 0
    Price:
    $48.29
    Subtotal:
  • Front of Rear Leaf Spring Hanger Hendrickson Replaces HDR 58425-001, R309386 For Hendrickson HAS HTS HFS

    Front of Rear Leaf Spring Hanger Hendrickson Replaces HDR 58425-001, R309386 For Hendrickson HAS HTS HFS

    OPP - ORIGINAL PARTS PROGRAM

    $239.99
    Hendrickson HAS HTS HFS Front Of Rear Drive Axle Hanger 58425001* High Quality Leaf Spring Hanger * 12.187 Inch C To C * For Front Of Rear Drive Axle* Sold Individually* Warranty On Leaf Spring...
    29-0510017
    SKU:
    29-0510017
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Make:
    Western Star
    Make:
    Ford
    $239.99
    Qty in Cart: 0
    Price:
    $239.99
    Subtotal:
  • Rubber Shackle and Shock Bushing Replaces K066026, K066266

    Rubber Shackle and Shock Bushing Replaces K066026, K066266

    GABRIEL

    $5.08
    Harris Bushing* High Quality Bushing* Dimensions:  - Bushing I.D.- 0.625 Inch  - Bushing O.D.- 1.875 Inch  - Overall Length- 1.25 Inch* S-Monroe Mount* Bushing Type 1- Rubber Shackle And Shock...
    29-05250042
    SKU:
    29-05250042
    Length Options:
    1 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $5.08
    Qty in Cart: 0
    Price:
    $5.08
    Subtotal:
  • Wear Pad Washer Replaces 1167680B000 For Ridewell Trailer

    Wear Pad Washer Replaces 1167680B000 For Ridewell Trailer

    AUTOMANN USA

    $8.09
    Ridewell Wear Pad Washer* High Quality Wear Pad Washer * Plastic/Nylon* Dimensions:  - I.D.- 2.12 Inch  - Thickness- 0.187 Inch  - O.D.- 6.25 Inch* Sold Individually* Warranty On Wear Pad Washer S...
    29-05250034
    SKU:
    29-05250034
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Material Options:
    Nylon
    Make:
    Trailer
    Make:
    Universal Items
    $8.09
    Qty in Cart: 0
    Price:
    $8.09
    Subtotal:
  • Thrust Washer L225 Reyco Replaces 4712

    Thrust Washer L225 Reyco Replaces 4712

    AUTOMANN USA

    $37.10
    Thrust Washer L225 Reyco* High Quality Thrust Washer* Dimensions:  - 4.00 Inch Length  - 3.75 Inch Width  - 0.25 Inch Thick* Sold Individually* Warranty On Washers Against Defects In Workmanship &...
    29-05200031
    SKU:
    29-05200031
    Length Options:
    4 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Width Options:
    3 Inch
    Make:
    Universal Items
    $37.10
    Qty in Cart: 0
    Price:
    $37.10
    Subtotal:
  • Top Plate Cast Replaces E2873, E9553, 2004671, 796205C1 For Reyco

    Top Plate Cast Replaces E2873, E9553, 2004671, 796205C1 For Reyco

    AFTERMARKET

    $57.99
    Top Plate Cast for Reyco* High Quality Top Plate* Dimensions:  - Length- 7.812 Inch  - Width- 3.00 Inch  - Hole Diameter- 1.125 Inch* Made In USA* Sold Individually* Warranty On Top Plates Against...
    29-05100165
    SKU:
    29-05100165
    Length Options:
    7 Inch
    Width Options:
    3 Inch
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Diameter Options:
    1 1/4 Inch
    Make:
    Trailer
    Make:
    Universal Items
    $57.99
    Qty in Cart: 0
    Price:
    $57.99
    Subtotal:
  • Spacer Hendrickson Replaces E-3741, 48903, 48903-000, R303741

    Spacer Hendrickson Replaces E-3741, 48903, 48903-000, R303741

    AUTOMANN USA

    $26.59
    Spacer Hendrickson* High Quality Spacer* Dimensions:  - Length- 7.875 Inch  - Width- 3.00 Inch  - Thickness- 1.57 Inch* Sold Individually* Warranty On Spacers Against Defects In Workmanship &...
    29-05100214
    SKU:
    29-05100214
    Length Options:
    7 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Width Options:
    3 Inch
    Make:
    Universal Items
    $26.59
    Qty in Cart: 0
    Price:
    $26.59
    Subtotal:
  • Auxiliary Spring Hendrickson Replaces 65902-003, 65902003

    Auxiliary Spring Hendrickson Replaces 65902-003, 65902003

    AFTERMARKET

    $144.99
    Auxiliary Spring Hendrickson* High Quality Auxiliary Spring* 2-1/8 Inch Height* Made In USA* Sold Individually* Warranty On Auxiliary Springs Against Defects In Workmanship & Material From Date Of...
    29-05100122
    SKU:
    29-05100122
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Height Options:
    2 Inch
    Make:
    Universal Items
    $144.99
    Qty in Cart: 0
    Price:
    $144.99
    Subtotal:
  • Rebound Bump Stop Hendrickson Replaces E-9416, 49395, 49395-000, NM1881, R309416

    Rebound Bump Stop Hendrickson Replaces E-9416, 49395, 49395-000, NM1881, R309416

    AUTOMANN USA

    $26.60
    Rebound Bump Stop HendricksonReduce suspension stress and enhance ride comfort with this Hendrickson Rebound Bump Stop. Replacement for E-9416, 49395, 49395-000, NM1881, and R309416, it measures 4...
    29-05100135
    SKU:
    29-05100135
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Width Options:
    2 Inch
    Make:
    Universal Items
    $26.60
    Qty in Cart: 0
    Price:
    $26.60
    Subtotal:
  • Auxiliary Spring Hendrickson/ Aux Replaces E-14896, 67778, 67778-000

    Auxiliary Spring Hendrickson/ Aux Replaces E-14896, 67778, 67778-000

    AFTERMARKET

    $172.99
    Ds Auxiliary Spring Hendrickson/ Aux* High Quality Auxiliary Spring* Height- 4.218 Inch* Made In USA* Sold Individually* Warranty On Auxiliary Springs Against Defects In Workmanship & Material From...
    29-05100124
    SKU:
    29-05100124
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Height Options:
    4 Inch
    Make:
    Universal Items
    $172.99
    Qty in Cart: 0
    Price:
    $172.99
    Subtotal:
  • Spring Riser-Spacer Block 6 X 3 X 1.5 Inch With 0.77 Inch Hole Underneath

    Spring Riser-Spacer Block 6 X 3 X 1.5 Inch With 0.77 Inch Hole Underneath

    AFTERMARKET

    $53.99
    1.5 Inch Lift Block- Spacer Plate For 3 Inch Springs* High Quality Spring Riser Block* Dimensions:   - Length- 6.00 Inch  - Width- 3.00 Inch  - Height- 1.50 Inch  - Hole Underneath- 0.77 Inch* Made...
    09-05090020
    SKU:
    09-05090020
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Length Options:
    6 Inch
    Width Options:
    3 Inch
    Height Options:
    1 1/2 Inch
    Make:
    Universal Items
    $53.99
    Qty in Cart: 0
    Price:
    $53.99
    Subtotal:
  • Spring Riser-Spacer Block 6 X 3 X 2-3/8 Inch With 3/4 Inch Center Post, 0.77 Inch Hole Underneath

    Spring Riser-Spacer Block 6 X 3 X 2-3/8 Inch With 3/4 Inch Center Post, 0.77 Inch Hole Underneath

    AFTERMARKET

    $91.99
    2 3/8 Inch Lift Block- Spacer Plate For 3 Inch SpringsMaintain truck stability and performance with this Spring Riser-Spacer Block, designed to reinforce and elevate leaf springs for heavy-duty...
    09-05090022
    SKU:
    09-05090022
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Width Options:
    3 Inch
    Length Options:
    6 Inch
    Make:
    Universal Items
    $91.99
    Qty in Cart: 0
    Price:
    $91.99
    Subtotal:
  • Spring Riser-Spacer Block 7 X 2.5 X 1 Inch W/ 5/8 Inch Center Post

    Spring Riser-Spacer Block 7 X 2.5 X 1 Inch W/ 5/8 Inch Center Post

    AUTOMANN USA

    $20.81
    1 Inch Lift Block- Spacer Plate For 2.5 Inch Springs* High Quality Spring Riser Block* Dimensions:  - 7.0In Lg.  - 2-1/2In Wd.   - 1.0In Thk* With 5/8In Center Post* Sold Individually* Warranty On...
    09-05090058
    SKU:
    09-05090058
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Width Options:
    2 Inch
    Length Options:
    7 Inch
    Make:
    Universal Items
    $20.81
    Qty in Cart: 0
    Price:
    $20.81
    Subtotal:
  • Spring Riser-Spacer Block 6 X 3 X 1 Inch With 1.79 Inch Hole Underneath

    Spring Riser-Spacer Block 6 X 3 X 1 Inch With 1.79 Inch Hole Underneath

    AUTOMANN USA

    $27.20
    1 Inch Lift Block- Spacer Plate For 3 Inch Springs* High Quality Spring Riser Block* Dimensions:  - Length- 6.00 Inch  - Width- 3.00 Inch  - Height- 1.00 Inch  - Hole Underneath- 0.79 Inch* Sold...
    09-05090019
    SKU:
    09-05090019
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Width Options:
    3 Inch
    Length Options:
    6 Inch
    Height Options:
    1 Inch
    Make:
    Universal Items
    $27.20
    Qty in Cart: 0
    Price:
    $27.20
    Subtotal:
  • Spring Riser-Spacer Block 7 X 3 X 1 Inch With 3/4 Inch Center Post

    Spring Riser-Spacer Block 7 X 3 X 1 Inch With 3/4 Inch Center Post

    BESTFIT TRUCK PARTS

    $37.10
    Leveling Lift Block* High Quality Spring Riser Block* Dimensions:  - 7.0 Inch Length   - 3.00 Inch Width  - 1.0 Inch Thick* With 3/4 Inch Center Post* Sold Individually* Warranty On Spring Riser...
    09-05090016
    SKU:
    09-05090016
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Width Options:
    3 Inch
    Length Options:
    7 Inch
    Make:
    Universal Items
    $37.10
    Qty in Cart: 0
    Price:
    $37.10
    Subtotal:
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The Kenworth W990 Drive Axle Springs & Hangers product lineup offers a wide range of high-quality components designed to provide a smooth, safe, and reliable ride for Kenworth semi-trucks. This comprehensive product lineup includes a variety of aluminum shim wedges, repair plates, bushings, and other essential parts to ensure optimal suspension performance. The standout features of this product lineup include the availability of shim wedges in diverse sizes and degrees, providing flexibility to fine-tune the suspension setup to individual truck specifications. The selection of leaf spring repair plates, both metric and standard, allows for easy maintenance and refurbishment of the suspension system. Additionally, the inclusion of bushings, sleeves, and other OEM-quality replacement parts ensures a perfect fit and long-lasting durability. These products are ideal for Kenworth truck owners and fleet operators who demand top-of-the-line performance and reliability from their vehicles. Whether you're upgrading your suspension, repairing damage, or simply maintaining your Kenworth W990, this product lineup has the components you need to keep your rig running at its best. With a focus on high-quality materials and precision engineering, these parts are designed to provide a smooth, stable, and comfortable ride for your long-haul journeys.

Frequently Asked Questions About Kenworth W990 Drive Axle Springs & Hangers

What do drive axle springs and hangers actually do?

Drive axle springs support the weight of the truck and its load while absorbing road shock, and the hangers are the mounting brackets that secure those springs to the frame rail. Together they keep the rear suspension properly aligned, help maintain ride height, and ensure the axle tracks correctly under load.

Will these springs and hangers fit my Kenworth W990?

Products listed in this category are intended for Kenworth W990 drive axle applications, but suspension components can vary by production year, GVW rating, and the specific suspension system installed on your truck. Always check the part number, spring capacity, and hanger dimensions against your truck's specs or VIN before ordering to confirm a proper fit.

How do I know if my springs or hangers need to be replaced?

Common signs include visible cracks or rust on the hanger brackets, sagging ride height, uneven tire wear, a leaning or shifted axle, clunking noises over bumps, or looseness in the hanger bushings and pins. If you notice any of these symptoms, it's a good idea to have the suspension inspected before they lead to further drivetrain or alignment issues.

Are these springs and hangers rated for heavy loads?

Spring capacity and hanger strength vary by part, so load ratings are listed on individual product pages. Make sure the replacement components match or exceed the original equipment rating for your truck's GVW and axle configuration to maintain safe handling and proper load distribution.

Is installation something I can do myself, or should a professional handle it?

Replacing drive axle springs and hangers involves working with heavy components under load, often requiring the axle to be supported and the suspension partially disassembled. While experienced technicians with the right lifting equipment and tools can complete the job, many owner-operators choose to have this repair done by a qualified truck repair shop to ensure proper torque specs, alignment, and safety.

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