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Freightliner Classic Frame & Chassis

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Front Spring Hanger 501851, 50185001, 478741, 47874001 For Hendrickson

    Front Spring Hanger 501851, 50185001, 478741, 47874001 For Hendrickson

    AFTERMARKET

    $104.99
    Replacement Hendrickson Front Spring Hanger* High Quality Hanger* Made In USA* Sold Individually* Warranty On Hangers Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    29-05100101
    SKU:
    29-05100101
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $104.99
    Qty in Cart: 0
    Price:
    $104.99
    Subtotal:
  • Double Lock Hanger E10263, E3Ht5785Ba, 46843001

    Double Lock Hanger E10263, E3Ht5785Ba, 46843001

    AFTERMARKET

    $163.99
    Replacement Double Lock Hanger* High Quality Double Lock Hanger* Made In USA* Sold Individually* Warranty On Double Lock Hangers Against Defects In Workmanship & Material From Date Of Purchase***...
    29-05100100
    SKU:
    29-05100100
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $163.99
    Qty in Cart: 0
    Price:
    $163.99
    Subtotal:
  • Center Hanger E5300, 56833003, 1218L90

    Center Hanger E5300, 56833003, 1218L90

    AFTERMARKET

    $597.99
    Replacement Center Hanger* High Quality Hanger Center* Made In USA* Sold Individually* Warranty On Hanger Centers Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    29-05100093
    SKU:
    29-05100093
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $597.99
    Qty in Cart: 0
    Price:
    $597.99
    Subtotal:
  • Air Spring Double Convoluted 65640. FD 120-20 767. FD120-20767

    Air Spring Double Convoluted 65640. FD 120-20 767. FD120-20767

    AFTERMARKET

    $180.99
    Replacement Air Spring Double Convoluted* High Quality Air Spring* Double Convoluted* 2100 Load At 80 PSI* 2600 Load At 100 PSI* 100 CPM Natural Frequency* Without Bumper* Dimensions:  - 7.50 Inch...
    29-05100098
    SKU:
    29-05100098
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $180.99
    Qty in Cart: 0
    Price:
    $180.99
    Subtotal:
  • Red 4 Trumpet Stacked Train Horn

    Red 4 Trumpet Stacked Train Horn

    AFTERMARKET

    $1,019.99
    4 Trumpet Red Authentic Train Horn* High Quality Train Horn* Made Of Textured Cast Aluminum* Red Powder Coated* Four Heavy Duty Trumpets  - 15.5 Inch Trumpet  - 12.0 Inch Trumpet  - 9.50 Inch Trumpet...
    09-051359
    SKU:
    09-051359
    Width Options:
    24 Inch
    Height Options:
    9 Inch
    Length Options:
    15 1/2 Inch
    Color:
    Red
    Material Options:
    Aluminum
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $1,019.99
    Qty in Cart: 0
    Price:
    $1,019.99
    Subtotal:
  • BESTfit 5 Inch U-Bolt Saddle Clamp

    BESTfit 5 Inch U-Bolt Saddle Clamp

    BESTFIT TRUCK PARTS

    $32.16
    5 Inch Chrome Flat Bolt HD Welded Saddle Clamp* High Quality Saddle* Chrome-Plated * 5 Inch * Flat Bolt* Welded* Made In USA* Sold Individually* Warranty On Saddles Against Defects In Workmanship &...
    09-080000069
    SKU:
    09-080000069
    Product Type:
    Frame & Chassis
    Diameter Options:
    5 Inch
    Finish Options:
    Chrome-Plated
    Material Options:
    Steel
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $32.16
    Qty in Cart: 0
    Price:
    $32.16
    Subtotal:
  • Double Connector Air Line Boxes

    Double Connector Air Line Boxes

    ROADWORKS

    $515.99 - $850.99
    Choose Option(s) to see description.Double Connection Air Line Box With 6 Rnd Flat Red LEDs With Hooded BezelsAir Line Box With Double Trailer Harness Connector Holes* High Quality Air Line Box*...
    PPR_365920
    SKU:
    PPR_365920
    Color:
    Red
    Color:
    Blue
    Light Options:
    Without Lights
    Light Options:
    With Lights
    Product Type:
    Frame & Chassis
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Make:
    Universal Items
    $515.99 - $850.99
    Qty in Cart: 0
    Price:
    $515.99 - $850.99
    Subtotal:
  • Fifth Wheel Rebuild Kit Passenger Side RK351A For Holland FW35

    Fifth Wheel Rebuild Kit Passenger Side RK351A For Holland FW35

    AFTERMARKET

    $539.99
    Fifth Wheel Rebuild Kit* High Quality Rebuild Kit* Made In USA* Sold Individually* Warranty On Rebuild Kits Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket...
    19-05110009
    SKU:
    19-05110009
    Product Type:
    Trailer
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $539.99
    Qty in Cart: 0
    Price:
    $539.99
    Subtotal:
  • Universal Slack Adjuster Tool

    Universal Slack Adjuster Tool

    AUTOMANN USA

    $37.10
    Slack Adjuster Tool UniversalThis handy all-in-one slack adjuster wrench works on most trucks you will come across. I has four different sizes built right in - 5/16" square, 7/16" hex, 9/16" hex, and...
    09-21000099
    SKU:
    09-21000099
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $37.10
    Qty in Cart: 0
    Price:
    $37.10
    Subtotal:
  • 5/16-Inch Slack Adjuster Wrench and Release Tool - Meritor Type

    5/16-Inch Slack Adjuster Wrench and Release Tool - Meritor Type

    AFTERMARKET

    $54.99
    Automatic Slack Adjuster ToolThis specialized Meritor brake service tool features a 5/16-inch double square wrench with an angled head that provides extra hand clearance. The side-mounted...
    09-21000096
    SKU:
    09-21000096
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $54.99
    Qty in Cart: 0
    Price:
    $54.99
    Subtotal:
  • 7/16 Inch Slack Adjuster Check Tool

    7/16 Inch Slack Adjuster Check Tool

    AFTERMARKET

    $65.99
    Cam Brake Slack Adjuster ToolThis tool enables you to quickly check the brake adjustment on class 7 and 8 trucks and trailers having S-cam brakes. It features a sturdy, four-position handle to...
    09-21000098
    SKU:
    09-21000098
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $65.99
    Qty in Cart: 0
    Price:
    $65.99
    Subtotal:
  • Automatic Slack Adjuster Puller

    Automatic Slack Adjuster Puller

    AFTERMARKET

    $179.99
    Slack Adjuster Puller for Automatic SlacksEasily remove frozen slack adjusters with a dependable air brake slack adjuster puller tool. Built for heavy-duty trucks, this tool saves time, works faster,...
    09-21000056
    SKU:
    09-21000056
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $179.99
    Qty in Cart: 0
    Price:
    $179.99
    Subtotal:
  • S44 Series ISR Type U Joint Greaseable 5-3022-1X

    S44 Series ISR Type U Joint Greaseable 5-3022-1X

    AUTOMANN USA

    $17.80
    Replacement Universal Inside Snap Ring U-Joint* High Quality Universal Joint* Dimensions:  - 3.65 Inch Length  - Each Joint Is 1.12 Inch Diameter* Inside Snap Ring Type* Heat Treated Caps*...
    09-05210009
    SKU:
    09-05210009
    Length Options:
    3 5/8 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $17.80
    Qty in Cart: 0
    Price:
    $17.80
    Subtotal:
  • MGM Spring Brake With Welded Clevis, Push Rod TR3030T

    MGM Spring Brake With Welded Clevis, Push Rod TR3030T

    AFTERMARKET

    $265.99
    Standard Stroke Combo Spring Brake Chamber with 4.2" Push Rod* High Quality Spring Brake* Nylon Reinforced Diaphragms* Aluminum Center* 2 1/2 Inch Stroke Length* 4.2 Inch Push Rod* Epoxy Coated Head*...
    09-05170115
    SKU:
    09-05170115
    Product Type:
    Frame & Chassis
    Material Options:
    Nylon
    Make:
    Universal Items
    $265.99
    Qty in Cart: 0
    Price:
    $265.99
    Subtotal:
  • MGM ADB Spring Brake TRB2424DT

    MGM ADB Spring Brake TRB2424DT

    AFTERMARKET

    $265.99
    Replacement Air Disc Brake Chamber* High Quality Spring Brake* Nylon Diaphragms* Aluminum Center* 2.25 Inch Push Rod* 2.5 Inch Stroke* Epoxy Coated Head* Non-Pressure Chamber* Push Rod* Return...
    09-05170112
    SKU:
    09-05170112
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Material Options:
    Nylon
    $265.99
    Qty in Cart: 0
    Price:
    $265.99
    Subtotal:
  • Crewson Type Slack Adjuster 1-1/4 In-24 X 5.5 Inch Arm - Straight Clevis

    Crewson Type Slack Adjuster 1-1/4 In-24 X 5.5 Inch Arm - Straight Clevis

    AFTERMARKET

    $98.99
    Crewson Type Slack Adjuster 5.5 Inch Arm With Straight ClevisThis Crewson-style automatic slack adjuster has a 5.5-inch arm. It comes with a straight clevis and features a 1-1/4-inch-24 thread.* High...
    09-05170108
    SKU:
    09-05170108
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $98.99
    Qty in Cart: 0
    Price:
    $98.99
    Subtotal:
  • MGM Spring Brake TR3030T Welded Yoke

    MGM Spring Brake TR3030T Welded Yoke

    AFTERMARKET

    $325.99
    Standard Stroke Spring Brake Chamber with Welded Yoke* High Quality Spring Brake* Neoprene* 4.20 Inch* Combination Welded* Made In USA* Sold Individually* Warranty On Spring Brakes Against Defects In...
    09-05170113
    SKU:
    09-05170113
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $325.99
    Qty in Cart: 0
    Price:
    $325.99
    Subtotal:
  • Brake Lining 20K RP628C RSD

    Brake Lining 20K RP628C RSD

    AFTERMARKET

    $112.99
    Replacement Heavy Duty Brake Lining 20K* High Quality Brake Lining* Dimensions:  - 16.50 Inch Drum Diameter  - 8.625 Inch Shoe Width* Rating- 20K LB Fleet Premium Heavy Duty* Made In USA* Sold...
    09-05170114
    SKU:
    09-05170114
    Product Type:
    Frame & Chassis
    Diameter Options:
    16 1/2 Inch
    Width Options:
    8 1/2 Inch
    Make:
    Universal Items
    $112.99
    Qty in Cart: 0
    Price:
    $112.99
    Subtotal:
  • Crewson Type Automatic Slack Adjuster 5.5 Inch Replaces CB25300, CB52336, E6990

    Crewson Type Automatic Slack Adjuster 5.5 Inch Replaces CB25300, CB52336, E6990

    AFTERMARKET

    $98.99
    Crewson Type Automatic Slack Adjuster 1.25 -24 X 5.5 Inch Arm With Offset ClevisLooking for a heavy-duty automatic slack adjuster? This Crewson-style unit comes with a 5.5-inch arm and features a...
    09-05170106
    SKU:
    09-05170106
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $98.99
    Qty in Cart: 0
    Price:
    $98.99
    Subtotal:
  • MGM ADB Spring Brake TRB2424DT051, K043270

    MGM ADB Spring Brake TRB2424DT051, K043270

    AFTERMARKET

    $531.99
    Air Brake Chamber - Combination, Air Disc ModelThis MGM ADB spring brake is built for air disc systems with a 2.5-inch stroke. It's got heavy-duty nylon diaphragms, epoxy coating where it counts, and...
    09-05170107
    SKU:
    09-05170107
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Material Options:
    Nylon
    $531.99
    Qty in Cart: 0
    Price:
    $531.99
    Subtotal:
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Shop Freightliner Classic Suspension and Chassis Parts

When it comes to finding the right Freightliner Classic XL parts to fix your suspension and ride height issues, 4 State Trucks stocks an enormous array of aftermarket replacement options. Whether you are addressing structural fatigue with heavy-duty frame rails and crossmembers or overhauling your front-end geometry with SBA air ride kits and leaf springs, we have the commercial-grade components required for the job. Restore your DOT compliance with high-performance shock absorbers and air valves, or upgrade your chassis utility with secure deck plates and frame steps. Our inventory includes model-specific suspension upgrade components and frame-chassis hardware parts. As you upgrade your frame-rail components, consider adding additional make/model-specific parts: Freightliner Classic fuel tanks, Freightliner classic visor or a new Freightliner Classic battery box. Find everything you need to refurbish and repair your big rig.

Frequently Asked Questions About Freightliner Classic Frame & Chassis

What are the differences between steel and aluminum bumpers for my Freightliner Classic?

Steel bumpers typically weigh 150-200 lbs and offer superior impact resistance and durability, making them ideal for heavy-duty applications and harsh weather conditions. They're generally 30-40% less expensive than aluminum but require regular maintenance to prevent rust. Aluminum bumpers weigh about 60-80 lbs, won't rust, and provide better fuel economy due to weight savings. However, they're more prone to denting and cost significantly more upfront. Most owner-operators choose steel for work trucks and aluminum for show trucks or when weight restrictions are critical.

Will aftermarket bumpers fit my specific Freightliner Classic model year?

Most aftermarket bumpers are designed to fit Freightliner Classic models from 1990-2007, but there are important variations. Pre-2000 models often have different mounting hole patterns and may require adapter brackets. The FLD 112/120 and Classic XL have wider frames that need specific bumper widths (typically 18" or 20" options). Always verify your frame rail width and mounting hole spacing before ordering. Look for bumpers that specify compatibility with your exact model designation (FLC, FLD, or Classic XL) and year range to ensure proper fitment without modifications.

What tools and skills do I need to install a new bumper myself?

Installing a Freightliner Classic bumper requires basic mechanical skills and these tools: 3/4" and 7/8" sockets and wrenches, torque wrench capable of 150-200 ft-lbs, floor jack or forklift to support the bumper weight, and safety equipment. The process typically takes 2-4 hours with a helper. Key challenges include aligning heavy bumpers with mounting holes and achieving proper torque specs (usually 150-175 ft-lbs for frame bolts). Many customers report difficulty with rusted or seized bolts on older trucks. Having penetrating oil and possibly a torch available is recommended. Professional installation typically costs $200-400 if you prefer to avoid these challenges.

What finish options hold up best against road salt and weather?

Chrome-plated steel remains the most popular choice, offering excellent appearance when maintained but requiring regular polishing and can show pitting after 3-5 years in salt states. Powder-coated finishes in black or custom colors provide superior corrosion resistance and typically last 5-7 years without significant maintenance. Polished aluminum naturally resists corrosion but shows water spots and requires frequent cleaning. For maximum durability in harsh conditions, consider bumpers with e-coating underneath chrome plating or opt for heavy-duty powder coating with a clear protective topcoat. Stainless steel options are available but typically cost 2-3 times more than standard chrome.

Can I mount accessories like light bars or air hoses to aftermarket bumpers?

Most quality aftermarket bumpers come pre-drilled for standard accessories or include mounting provisions. Common mounting points include centered holes for light bars (typically supporting up to 50" bars), side mounting tabs for work lights or air hose hangers, and tow hook or shackle mounting points rated for 20,000-30,000 lbs. When selecting a bumper, verify it has the specific mounting features you need - not all bumpers include fog light provisions or airline holes. Adding holes after purchase is possible but may void warranties and compromise chrome plating. Many bumpers also offer optional bolt-on accessories like step plates, license plate holders, and bumper guards that don't require drilling.


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