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Freightliner Classic Frame & Chassis

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  • Brunner Custom Enclosed Light Bar W/ 8 - 4 In Rnd, 5 - 2 In Rnd LED Lights W/ Square Corners

    Brunner Custom Enclosed Light Bar W/ 8 - 4 In Rnd, 5 - 2 In Rnd LED Lights W/ Square Corners

    BRUNNER FABRICATION

    $1,783.99
    Rear Light Bar W/ 8 - 4 Inch Round & 5 - 2 Inch Round LED Lights By Brunner FabricationIf you are wanting to add lights to your cab, 4 State Trucks offers this high quality Brunner custom enclosed...
    09-021013
    SKU:
    09-021013
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Finish Options:
    Polished
    Light Options:
    With Lights
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    $1,783.99
    Qty in Cart: 0
    Price:
    $1,783.99
    Subtotal:
  • Smooth Aluminum Wide Big Mount Step Box 18 Inch

    Smooth Aluminum Wide Big Mount Step Box 18 Inch

    ICONIC

    $729.99
    18 X 24 X 29.13 Inch Aluminum Big Mount Step Box* High Quality Big Mouth Step Box* Aluminum* Dimensions:  - 18.00 Inch Wide  - 24.00 Inch Height  - 29.13 Inch Depth* With Smooth Aluminum Lid * 50...
    09-020100537
    SKU:
    09-020100537
    Truck Class:
    Universal
    Width Options:
    18 Inch
    Material Options:
    Aluminum
    Make:
    Universal Items
    Finish Options:
    Smooth
    Product Type:
    Cargo Control
    Ready To Ship:
    Yes
    $729.99
    Qty in Cart: 0
    Price:
    $729.99
    Subtotal:
  • 22 Inch Smooth Aluminum Big Mouth Step Box W/ Lid

    22 Inch Smooth Aluminum Big Mouth Step Box W/ Lid

    ICONIC

    $759.99
    Big Mouth 22 X 24 Inch Smooth Aluminum Step Box* High Quality Step Box* Made Of Smooth Aluminum With Smooth Aluminum Lid* 22 Inch Wide* 24 Inch Height* 29.13 Inch Depth* Recommended 09-020100007...
    09-020100535
    SKU:
    09-020100535
    Truck Class:
    Universal
    Width Options:
    22 Inch
    Material Options:
    Aluminum
    Make:
    Universal Items
    Finish Options:
    Smooth
    Product Type:
    Cargo Control
    $759.99
    Qty in Cart: 0
    Price:
    $759.99
    Subtotal:
  • Diamond Plate Aluminum Step Saddle Box 36 x 25 x 28 Inch W/ Polished Side/Back Panels

    Diamond Plate Aluminum Step Saddle Box 36 x 25 x 28 Inch W/ Polished Side/Back Panels

    UNITED PACIFIC

    $902.99
    Aluminum Step Saddle Box W/ Locking Latch* High Quality Step Saddle Box* Made Of Aluminum* 36 Inch Length X 25 Inch Width X 28 Inch Height * Box Can Be Opened, Closed And Locked With Key* 2 Keys Are...
    09-020100534
    SKU:
    09-020100534
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Material Options:
    Aluminum
    Finish Options:
    Diamond Plate
    Product Type:
    Cargo Control
    $902.99
    Qty in Cart: 0
    Price:
    $902.99
    Subtotal:
  • Diamond Plate Aluminum Step Saddle Box 18 x 25 x 28 Inch W/ Polished Back/Side Panels

    Diamond Plate Aluminum Step Saddle Box 18 x 25 x 28 Inch W/ Polished Back/Side Panels

    UNITED PACIFIC

    $618.99
    Aluminum Step Saddle Box With Lockable Door And Keys* High Quality Step Saddle Box * Made Of Aluminum* 18 Inch W X 25 Inch D X 28 Inch H * Box Can Be Opened* Closed And Locked With Key* 2 Keys Are...
    09-020100532
    SKU:
    09-020100532
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Finish Options:
    Diamond Plate
    Material Options:
    Aluminum
    Product Type:
    Cargo Control
    $618.99
    Qty in Cart: 0
    Price:
    $618.99
    Subtotal:
  • Diamond Plate Aluminum Step Saddle Box 12 x 25 x 28 Inch W/ Polished Side/Back Panels

    Diamond Plate Aluminum Step Saddle Box 12 x 25 x 28 Inch W/ Polished Side/Back Panels

    UNITED PACIFIC

    $913.99
    Aluminum Step Saddle Box With Locking Door And 2 Keys* High Quality Step Saddle Box* 12 Inch L X 25 Inch W X 28 Inch * Aluminum Step* Box Can Be Opened, Closed And Locked With Key* 2 Keys Are...
    09-020100531
    SKU:
    09-020100531
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Material Options:
    Aluminum
    Finish Options:
    Diamond Plate
    Product Type:
    Cargo Control
    $913.99
    Qty in Cart: 0
    Price:
    $913.99
    Subtotal:
  • Diamond Plate Aluminum Trailer Tongue Truck Box W/ Angled Front 18.5 X 15 X 49 Inch

    Diamond Plate Aluminum Trailer Tongue Truck Box W/ Angled Front 18.5 X 15 X 49 Inch

    BUYERS PRODUCTS

    $550.99
    18.5 X 15 X 49 Inch Diamond Plate Aluminum Trailer Tongue Truck Box W/ Angled FrontThis Diamond Tread Aluminum Trailer Tongue Truck Box is built tough to mount to A-frame style trailers. It keeps...
    09-020100518
    SKU:
    09-020100518
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Aluminum
    Product Type:
    Frame & Chassis
    $550.99
    Qty in Cart: 0
    Price:
    $550.99
    Subtotal:
  • Diamond Plate Aluminum Trailer Tongue Truck Box 15 X 14.5 X 34/22.5 Inch

    Diamond Plate Aluminum Trailer Tongue Truck Box 15 X 14.5 X 34/22.5 Inch

    BUYERS PRODUCTS

    $422.99
    15 X 14.5 X 34/22.5 Inch Diamond Plate Aluminum Trailer Tongue Truck BoxThis Diamond Tread Aluminum Trailer Tongue Truck Box is built for A-frame style trailers. It's tough yet lightweight with a...
    09-020100517
    SKU:
    09-020100517
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Aluminum
    Product Type:
    Frame & Chassis
    $422.99
    Qty in Cart: 0
    Price:
    $422.99
    Subtotal:
  • Black Steel Trailer Tongue Truck Tool Box 16.38 X 15 X 35.25/21.25 Inch

    Black Steel Trailer Tongue Truck Tool Box 16.38 X 15 X 35.25/21.25 Inch

    BUYERS PRODUCTS

    $411.99
    16.38 X 15 X 35.25/21.25 Inch Black Steel Trailer Tongue Truck Tool BoxAdd more storage to your A-Frame Trailer with this Black Steel Trailer Tongue Truck Tool Box. Its heavy-duty steel construction,...
    09-020100516
    SKU:
    09-020100516
    Truck Class:
    Universal
    Color:
    Black
    Width Options:
    35 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $411.99
    Qty in Cart: 0
    Price:
    $411.99
    Subtotal:
  • Gloss Black Diamond Plate Aluminum Topside Truck Tool Box W/ Double Doors- 72 Inch

    Gloss Black Diamond Plate Aluminum Topside Truck Tool Box W/ Double Doors- 72 Inch

    AFTERMARKET

    $1,148.99
    72 Inch Gloss Black Diamond Plate Aluminum Topside Truck Tool Box W/ Double DoorsProtect your tools with the 72-Inch Gloss Black Diamond Plate Aluminum Topside Truck Tool Box with Double Doors...
    09-020100235
    SKU:
    09-020100235
    Color:
    Black
    Truck Class:
    Universal
    Height Options:
    17 Inch
    Width Options:
    13 Inch
    Length Options:
    72 Inch
    Material Options:
    Aluminum
    Make:
    Universal Items
    Finish Options:
    Diamond Plate
    Style Options:
    2 Door
    Product Type:
    Toolboxes
    $1,148.99
    Qty in Cart: 0
    Price:
    $1,148.99
    Subtotal:
  • Bright Diamond Plate Aluminum Topside Truck Tool Box W/ Double Doors- 72 Inch

    Bright Diamond Plate Aluminum Topside Truck Tool Box W/ Double Doors- 72 Inch

    AFTERMARKET

    $1,029.99
    72 Inch Bright Diamond Plate Aluminum Topside Truck Tool Box W/ Double DoorsKeep your tools organized and easily accessible with the 72 Inch Bright Diamond Plate Aluminum Topside Truck Tool Box with...
    09-020100234
    SKU:
    09-020100234
    Length Options:
    72 Inch
    Truck Class:
    Universal
    Height Options:
    17 Inch
    Width Options:
    13 Inch
    Material Options:
    Aluminum
    Make:
    Universal Items
    Finish Options:
    Diamond Plate
    Style Options:
    2 Door
    Product Type:
    Toolboxes
    $1,029.99
    Qty in Cart: 0
    Price:
    $1,029.99
    Subtotal:
  • Matte Black Diamond Plate Aluminum Deep Angled Crossover Tool Box- 69 Inch For Pickup Trucks

    Matte Black Diamond Plate Aluminum Deep Angled Crossover Tool Box- 69 Inch For Pickup Trucks

    AFTERMARKET

    $842.99
    69 Inch Matte Black Diamond Plate Aluminum Deep Angled Crossover Tool Box Fits Pickup TrucksProtect your tools and maximize truck bed space with the Matte Black Diamond Plate Aluminum Deep Angled...
    09-020100171
    SKU:
    09-020100171
    Width Options:
    20 Inch
    Length Options:
    69 Inch
    Color:
    Black
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Finish Options:
    Diamond Plate
    Product Type:
    Toolboxes
    $842.99
    Qty in Cart: 0
    Price:
    $842.99
    Subtotal:
  • Bright Diamond Plate Aluminum Utility Chest Box- 48 Inch For Pickup Trucks

    Bright Diamond Plate Aluminum Utility Chest Box- 48 Inch For Pickup Trucks

    AFTERMARKET

    $648.99
    48 Inch Bright Diamond Plate Aluminum Utility Chest Box Fits Pickup TrucksKeep tools and equipment safe on the go with the 48-Inch Bright Diamond Plate Aluminum Utility Chest Box. Constructed from...
    09-020100060
    SKU:
    09-020100060
    Length Options:
    42 Inch
    Truck Class:
    Universal
    Width Options:
    24 Inch
    Material Options:
    Aluminum
    Make:
    Universal Items
    Finish Options:
    Diamond Plate
    Product Type:
    Toolboxes
    $648.99
    Qty in Cart: 0
    Price:
    $648.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Battery Hold-Down Kit For 2 Group 30 Or Group 31 Batteries

    Battery Hold-Down Kit For 2 Group 30 Or Group 31 Batteries

    MINIMIZER

    $88.99
    Battery Hold Down Kit With Bolts, Nuts, Washer Plates, J Hookds, Flat Washers, Battery Clamps & Locking Nuts* High Quality Battery Hold Down Kit* Vent Holes Are Required When Storing Batteries In The...
    09-020100005
    SKU:
    09-020100005
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $88.99
    Qty in Cart: 0
    Price:
    $88.99
    Subtotal:
  • Minimizer Poly In-Frame Tool Box- 33.5 X 13.5 X 22 Inch

    Minimizer Poly In-Frame Tool Box- 33.5 X 13.5 X 22 Inch

    MINIMIZER

    $864.99
    33.5 X 13.5 X 22 Inch Poly Composite Between-Frame Tool Box By MinimizerEnsure dry, secure storage on your truck with the Minimizer Poly In-Frame Tool Box. Constructed from durable poly composite,...
    09-020100004
    SKU:
    09-020100004
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Toolboxes
    $864.99
    Qty in Cart: 0
    Price:
    $864.99
    Subtotal:
  • Limited Quantity Available
    Smooth Aluminum Fairing Tool Box 18 X 20 X 18 Inch With Top Chest Diamond Plate Lid

    Smooth Aluminum Fairing Tool Box 18 X 20 X 18 Inch With Top Chest Diamond Plate Lid

    ICONIC

    $589.99
    Aluminum Fairing Tool Box With Top Chest & Diamond Plate Aluminum Lid* High Quality Fairing Tool Box* With Top Chest Diamond Plate Aluminum Lid* Smooth Aluminum Body * Hasp Latch * Dimensions  - 18...
    09-020100003
    SKU:
    09-020100003
    Length Options:
    18 Inch
    Truck Class:
    Universal
    Width Options:
    18 Inch
    Material Options:
    Aluminum
    Make:
    Universal Items
    Finish Options:
    Smooth
    Product Type:
    Cargo Control
    $589.99
    Qty in Cart: 0
    Price:
    $589.99
    Subtotal:
  • Sleeper Bushing Replaces J-19694-1 For Freightliner FLC120

    Sleeper Bushing Replaces J-19694-1 For Freightliner FLC120

    AFTERMARKET

    $134.99
    Sleeper Bushing Fits Freightliner FLC120* High Quality Sleeper Bushing* 0.625 Inch* 2.125 Inch* 2.375 Inch* 3.000 Inch* 1.000 Inch* Sold Individually* Warranty On Sleeper Bushings Against Defects In...
    03-101405
    SKU:
    03-101405
    Truck Class:
    Heavy Duty
    Make:
    Freightliner
    Product Type:
    Exterior
    $134.99
    Qty in Cart: 0
    Price:
    $134.99
    Subtotal:
  • 2.75 X 6.312 Inch Rear Of Front Side Bar Replaces 3525664C1 For Freightliner

    2.75 X 6.312 Inch Rear Of Front Side Bar Replaces 3525664C1 For Freightliner

    AFTERMARKET

    $23.23
    4.125 Inch Center To Center Side BarStrengthen your Freightliner's front suspension with the 2.75 X 6.312 Inch Rear Of Front Side Bar, crafted for superior durability and precise fit. Measuring 2.750...
    03-0591000K01
    SKU:
    03-0591000K01
    Truck Class:
    Heavy Duty
    Width Options:
    2 Inch
    Length Options:
    4 Inch
    Material Options:
    Rubber
    Make:
    Freightliner
    Product Type:
    Frame & Chassis
    $23.23
    Qty in Cart: 0
    Price:
    $23.23
    Subtotal:
  • Heavy Duty Rear Differential Breather Kit Replaces KIT2902 For Freightliner

    Heavy Duty Rear Differential Breather Kit Replaces KIT2902 For Freightliner

    AUTOMANN USA

    $11.22
    Heavy Duty Rear Differential Breather KitAvoid differential damage and maintain smooth operation with the Heavy Duty Rear Differential Breather Kit for Freightliner trucks. This complete kit features...
    03-0521201
    SKU:
    03-0521201
    Truck Class:
    Heavy Duty
    Make:
    Freightliner
    Product Type:
    Frame & Chassis
    $11.22
    Qty in Cart: 0
    Price:
    $11.22
    Subtotal:
  • FREE SHIPPING OVER $249
    TPHD Height Control Valve Linkage Kit Replaces OE 03-05180 03-06224 12149 For Freightliner Rear FAS I & FAS II Suspension

    TPHD Height Control Valve Linkage Kit Replaces OE 03-05180 03-06224 12149 For Freightliner Rear FAS I & FAS II Suspension

    TPHD

    $14.04
    Adjustable To 19.5 Inch Height Control Valve Linkage Kit, Replaces 03-05180* High Quality Linkage Kit* Adjustable Linkage Kit For Height Control Valve* 18 Inch Rod With Ends And Hardware* Maximum...
    03-051800K01
    SKU:
    03-051800K01
    Length Options:
    18 Inch
    Truck Class:
    Heavy Duty
    Make:
    Freightliner
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $14.04
    Qty in Cart: 0
    Price:
    $14.04
    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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