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Peterbilt 330/335/337 Frame Crossmembers & Covers

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • 5.5 Inch Automatic Slack Adjuster W/ 1.5 Inch-28 Spline

    5.5 Inch Automatic Slack Adjuster W/ 1.5 Inch-28 Spline

    DAYTON / DORMAN

    $84.99
    Automatic Slack Adjuster Replaces R803108, R802447, R802446Maintain optimal braking efficiency with this durable 5.5-inch automatic slack adjuster designed for air brake systems requiring a 1...
    09-051700048
    SKU:
    09-051700048
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $84.99
    Qty in Cart: 0
    Price:
    $84.99
    Subtotal:
  • Air Brake Caliper- Passenger Side Replaces 802984, K113887X, K149714

    Air Brake Caliper- Passenger Side Replaces 802984, K113887X, K149714

    DAYTON / DORMAN

    $1,096.99
    Passenger Side Air Brake Caliper Replaces 802984, K113887X, K149714Ensure dependable stopping power with this high-quality air brake caliper designed for passenger-side applications and built as a...
    09-051700049
    SKU:
    09-051700049
    Product Type:
    Frame & Chassis
    Position:
    Passenger Side
    Make:
    Universal Items
    $1,096.99
    Qty in Cart: 0
    Price:
    $1,096.99
    Subtotal:
  • 16.5 X 8.62 Inch Brake Drum W/ 10 Holes & 8.78 Inch Hub

    16.5 X 8.62 Inch Brake Drum W/ 10 Holes & 8.78 Inch Hub

    DAYTON / DORMAN

    $270.99
    16.5 X 8.62 Inch 10 Hole Brake Drum Replaces 972312, WWD66854B, 10012097Improve stopping power and reliability with this high-quality iron brake drum designed for air brake systems in heavy-duty...
    09-051700043
    SKU:
    09-051700043
    Material Options:
    Steel
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $270.99
    Qty in Cart: 0
    Price:
    $270.99
    Subtotal:
  • 16.5 X 7 Inch Brake Drum W/ 10 Holes & 8.78 Inch Hub

    16.5 X 7 Inch Brake Drum W/ 10 Holes & 8.78 Inch Hub

    DAYTON / DORMAN

    $269.99
    16.5 X 7 Inch 10 Hole Brake Drum Replaces 1670176C1, 66800B, APL-102317Improve stopping power and reliability with this high-quality iron brake drum designed for air brake systems in heavy-duty...
    09-051700044
    SKU:
    09-051700044
    Product Type:
    Frame & Chassis
    Material Options:
    Steel
    Make:
    Universal Items
    $269.99
    Qty in Cart: 0
    Price:
    $269.99
    Subtotal:
  • 16.5 X 7 Inch Brake Drum W/ 10 Holes & 8.53 Inch Hub

    16.5 X 7 Inch Brake Drum W/ 10 Holes & 8.53 Inch Hub

    DAYTON / DORMAN

    $253.99
    16.5 X 7 Inch 10 Hole Brake Drum Replaces 3946075Improve stopping power and reliability with this high-quality iron brake drum designed for air brake systems in heavy-duty applications. Built for...
    09-051700045
    SKU:
    09-051700045
    Material Options:
    Steel
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $253.99
    Qty in Cart: 0
    Price:
    $253.99
    Subtotal:
  • 1.75 X 3.98 Inch Multi- Purpose Leaf Spring Bushings Replaces 052700000, 52700, B131000

    1.75 X 3.98 Inch Multi- Purpose Leaf Spring Bushings Replaces 052700000, 52700, B131000

    DAYTON / DORMAN

    $28.05
    Multi- Purpose Leaf Spring Bushings- 1.75 X 3.98 InchImprove suspension performance with these heavy-duty multi-purpose leaf spring bushings, engineered to replace part numbers 052700000, 52700, and...
    09-051000014
    SKU:
    09-051000014
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $28.05
    Qty in Cart: 0
    Price:
    $28.05
    Subtotal:
  • Suspension Height Control Valve Replaces 060826000, 60826, 60826000

    Suspension Height Control Valve Replaces 060826000, 60826, 60826000

    DAYTON / DORMAN

    $84.99
    Suspension Height Control Valve W/ 1/4 Inch NPT Inlet/ OutletOptimize your air suspension system with this high-quality ride height control valve, a direct replacement for part numbers 060826000,...
    09-051000015
    SKU:
    09-051000015
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $84.99
    Qty in Cart: 0
    Price:
    $84.99
    Subtotal:
  • Chrome Plated Aluminum Step Plate - 24 X 6 Inch

    Chrome Plated Aluminum Step Plate - 24 X 6 Inch

    LIFETIME NUT COVERS

    $633.99 - $670.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksChrome Plated Aluminum Step Plate W/ Concave Edges- 24 X 6 Inch24 X 6 Inch Chrome Aluminum Step Plate...
    PPR_300585
    SKU:
    PPR_300585
    Height Options:
    6 Inch
    Product Type:
    Frame & Chassis
    Length Options:
    24 Inch
    Material Options:
    Billet Aluminum
    Finish Options:
    Chrome-Plated
    Material Options:
    Aluminum
    Make:
    Universal Items
    $633.99 - $670.99
    Qty in Cart: 0
    Price:
    $633.99 - $670.99
    Subtotal:
  • Stainless Steel Under Frame Mount Light Bracket W/ Single Watermelon Light Hole

    Stainless Steel Under Frame Mount Light Bracket W/ Single Watermelon Light Hole

    ARANDA TRUCK ACCESSORIES

    $36.67
    Under Frame Mount Light Bracket Stainless Steel W/ Watermelon Light HoleMaintain secure under-frame lighting with this high-quality Stainless Steel Turn Signal Bracket, complete with a single...
    09-161000065
    SKU:
    09-161000065
    Product Type:
    Lighting
    Material Options:
    Stainless Steel
    Style Options:
    Watermelon
    Light Options:
    Without Lights
    Location:
    Made In USA
    Make:
    Universal Items
    $36.67
    Qty in Cart: 0
    Price:
    $36.67
    Subtotal:
  • Bulldog HD Shock Absorber 6.57 Inch Stroke Replaces 555014

    Bulldog HD Shock Absorber 6.57 Inch Stroke Replaces 555014

    BULLDOG HD SHOCKS

    $70.99
    Heavy Duty Universal Shock Absorber- 12.95 Inch Compressed LengthBoost ride quality and handling with the Bulldog HD Shock Absorber 6.57-inch stroke. Built with robotic welds and a semi-gloss black...
    09-05000004
    SKU:
    09-05000004
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $70.99
    Qty in Cart: 0
    Price:
    $70.99
    Subtotal:
  • Bulldog HD Shock Absorber 9.09 Inch Stroke Replaces 555014

    Bulldog HD Shock Absorber 9.09 Inch Stroke Replaces 555014

    BULLDOG HD SHOCKS

    $41.08
    Heavy Duty Universal Shock Absorber- 15.08 Inch Compressed Length Replaces 555014Restore control and stability to your vehicle with the Bulldog HD Shock Absorber, 9.09-inch stroke. Built for...
    09-05000003
    SKU:
    09-05000003
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $41.08
    Qty in Cart: 0
    Price:
    $41.08
    Subtotal:
  • FREE SHIPPING
    BESTfit Polished Aluminum Air Tank For Peterbilt

    BESTfit Polished Aluminum Air Tank For Peterbilt

    BESTFIT TRUCK PARTS

    $387.99 - $407.99
    Reliable, corrosion-resistant, and stylish, the BESTfit Polished Aluminum Air Tank is engineered for Peterbilt trucks. Choose from 9.5 33.5-inch or 8 30-inch sizes for dependable air storage, and...
    PPR_300539
    SKU:
    PPR_300539
    Product Type:
    Air, Electrical, & Safety
    Diameter Options:
    9 1/2 Inch
    Finish Options:
    Polished
    Make:
    Peterbilt
    Rating:
    150 PSI
    Truck Class:
    Heavy Duty
    Diameter Options:
    8 Inch
    Material Options:
    Aluminum
    Ready To Ship:
    Yes
    $387.99 - $407.99
    Qty in Cart: 0
    Price:
    $387.99 - $407.99
    Subtotal:
  • Turnpike Truck Trim Stainless Steel Rear Frame Cover For Steel Crossmembers For Peterbilt 300 Series

    Turnpike Truck Trim Stainless Steel Rear Frame Cover For Steel Crossmembers For Peterbilt 300 Series

    TURNPIKE TRUCK TRIM

    $88.99 - $91.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 330 1995 thru 2005* Fits Peterbilt 335 2005 thru 2010* Fits Peterbilt 340 2007 thru 2010* Fits Peterbilt 348 2011 thru 2021* Fits Peterbilt...
    PPR_300541
    SKU:
    PPR_300541
    Finish Options:
    Polished
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Position:
    Rear
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    $88.99 - $91.99
    Qty in Cart: 0
    Price:
    $88.99 - $91.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Stainless Steel Slotted Air Tank Straps - 3 Inch Wide For Peterbilt

    Stainless Steel Slotted Air Tank Straps - 3 Inch Wide For Peterbilt

    TWELVE GAUGE

    $119.99 - $132.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 330 1995 thru 2005* Fits Peterbilt 335 2005 thru 2010* Fits Peterbilt 359 1973 thru 1986 * Fits Peterbilt 375 1988 thru 1995* Fits...
    PPR_300540
    SKU:
    PPR_300540
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Diameter Options:
    8 Inch
    Width Options:
    3 Inch
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    $119.99 - $132.99
    Qty in Cart: 0
    Price:
    $119.99 - $132.99
    Subtotal:
  • BESTfit Thrust Angle Shim For Peterbilt Air Leaf Suspension - Set Of 10

    BESTfit Thrust Angle Shim For Peterbilt Air Leaf Suspension - Set Of 10

    BESTFIT TRUCK PARTS

    $58.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 330 1995 thru 2005* Fits Peterbilt 335 2005 thru 2010* Fits Peterbilt 337 2014 thru 2016* Fits Peterbilt 340 2007 thru 2010* Fits Peterbilt...
    PPR_300538
    SKU:
    PPR_300538
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Peterbilt
    $58.99
    Qty in Cart: 0
    Price:
    $58.99
    Subtotal:
  • 5 Trumpet Stacked Train Horn

    5 Trumpet Stacked Train Horn

    USA TRAIN HORN

    $1,145.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks5 Trumpet Stacked Train Horn - Red5 Trumpet Horizontal Train HornThis high quality aluminum Red 5 Bell...
    PPR_300536
    SKU:
    PPR_300536
    Height Options:
    9 Inch
    Product Type:
    Frame & Chassis
    Color:
    Black
    Length Options:
    15 1/2 Inch
    Material Options:
    Aluminum
    Location:
    Made In USA
    Make:
    Universal Items
    Style Options:
    5 Bell
    Width Options:
    31 Inch
    Ready To Ship:
    Yes
    $1,145.99
    Qty in Cart: 0
    Price:
    $1,145.99
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit Side Bar 6.32 Inch For Peterbilt COE & Conventional

    BESTfit Side Bar 6.32 Inch For Peterbilt COE & Conventional

    BESTFIT TRUCK PARTS

    $51.99 - $64.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 320 1988 thru 2018* Fits Peterbilt 330 1995 thru 2005* Fits Peterbilt 335 2005 thru 2010* Fits Peterbilt 337 2011 thru 2022* Fits Peterbilt...
    PPR_300531
    SKU:
    PPR_300531
    Material Options:
    Aluminum
    Width Options:
    1 Inch
    Material Options:
    Steel
    Make:
    Peterbilt
    Length Options:
    6 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $51.99 - $64.99
    Qty in Cart: 0
    Price:
    $51.99 - $64.99
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit Spring Shackle Side Bar For Peterbilt COE & Conventional 1982 & Newer

    BESTfit Spring Shackle Side Bar For Peterbilt COE & Conventional 1982 & Newer

    BESTFIT TRUCK PARTS

    $37.26 - $56.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 330 1995 thru 2005* Fits Peterbilt 335 2005 thru 2010* Fits Peterbilt 337 2011 thru 2022* Fits Peterbilt 357 1987 thru 2007* Fits Peterbilt...
    PPR_300530
    SKU:
    PPR_300530
    Product Type:
    Frame & Chassis
    Length Options:
    6 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Material Options:
    Aluminum
    Width Options:
    2 Inch
    Make:
    Peterbilt
    $37.26 - $56.99
    Qty in Cart: 0
    Price:
    $37.26 - $56.99
    Subtotal:
  • Front Spring Hanger, Rear Of Steer For Peterbilt

    Front Spring Hanger, Rear Of Steer For Peterbilt

    AFTERMARKET

    $117.99 - $123.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 320 1988 thru 2018* Fits Peterbilt 330 1995 thru 2005* Fits Peterbilt 335 2005 thru 2010* Fits Peterbilt 337 2011 thru 2022* Fits Peterbilt...
    PPR_300529
    SKU:
    PPR_300529
    Truck Class:
    Heavy Duty
    Height Options:
    4 Inch
    Product Type:
    Frame & Chassis
    Material Options:
    Steel
    Make:
    Peterbilt
    $117.99 - $123.99
    Qty in Cart: 0
    Price:
    $117.99 - $123.99
    Subtotal:
  • Roadworks 14.5 Inch Stainless Steel Switch Blade Light Panel W/ 32 Rnd 3/4 Inch Light Holes

    Roadworks 14.5 Inch Stainless Steel Switch Blade Light Panel W/ 32 Rnd 3/4 Inch Light Holes

    ROADWORKS

    $262.99
    14.5 Inch Switch Blade Light Panel W/ 16 Rnd 3/4 Inch Light Holes Per Panel By RoadworksBoost both style and functionality with the Roadworks 14.5 Inch Switch Blade Light Panel. Constructed from...
    29-09050049
    SKU:
    29-09050049
    Material Options:
    Stainless Steel
    Height Options:
    14 1/2 Inch
    Style Options:
    Switchblade
    Product Type:
    Exterior
    Make:
    Universal Items
    $262.99
    Qty in Cart: 0
    Price:
    $262.99
    Subtotal:
  • Total: items /

Adding your products to cart

Keep your Peterbilt 330/335/337 in top shape with our frame crossmembers and covers! From heavy-duty crossmembers to durable fiberglass or stainless steel covers, these parts reinforce and protect your truck's frame. Perfect for replacements or upgrades, they ensure long-lasting performance and a sleek look. Get reliable solutions to maintain your truck's strength and style! A quality set of Frame crossmembers provides a mounting point for critical components like the suspension, engine, and transmission. Installing quality frame covers protects your investment from exposure to the elements, even damage caused by road hazards or debris. If you have a weak frame and need to replace the part, this product lineup has affordable replacement options. Once a crossmember on your Peterbilt is weakened or damaged, you'll have plenty of difficulty steering, braking, and controlling your rig. At 4 State Trucks, we know the importance of getting quality frame crossmember parts.

Frequently Asked Questions About Peterbilt 330/335/337 Frame Crossmembers & Covers

What year models of Peterbilt 330, 335, and 337 trucks are these crossmembers compatible with?

Our frame crossmembers and covers are designed to fit Peterbilt 330, 335, and 337 models from 2005 to present. However, there were minor frame dimension changes in 2008 and 2014 model years. Always verify your specific truck's frame rail spacing (typically 34" or 34.5") and crossmember mounting hole patterns before ordering. We recommend checking your OEM with our customer service team if you have a truck from these transition years.

Are these crossmembers made from steel or aluminum, and how thick is the material?

Most of our crossmembers are constructed from heavy-duty steel with thickness ranging from 3/16" to 1/4" depending on the application. Steel crossmembers come with a black powder coat finish for corrosion resistance. We also carry select aluminum options that are typically 1/4" thick and offer weight savings of approximately 40-50% compared to steel. All materials meet or exceed OEM specifications for strength and durability.

Do I need to drill new holes or make modifications to install these crossmembers?

The majority of our crossmembers are designed as direct bolt-on replacements using existing frame holes. No drilling is required for standard installations. However, if you're adding a crossmember where one didn't exist previously, or if your frame has been modified, drilling may be necessary. All crossmembers include detailed installation instructions and hole pattern templates. We recommend having installation done by a qualified technician if drilling is required.

What's the difference between a crossmember and a crossmember cover, and do I need both?

A crossmember is the structural steel or aluminum beam that connects the frame rails and provides chassis rigidity. A crossmember cover is a decorative piece that mounts over the existing crossmember for aesthetic purposes. You don't need both unless you want the added visual appeal. Covers are popular for show trucks or when the original crossmember is functional but has surface rust or wear. Covers typically add about 1/2" of thickness to the existing crossmember.

Will adding aftermarket crossmembers affect my truck's warranty or DOT compliance?

Our crossmembers are manufactured to meet or exceed OEM specifications and DOT requirements for commercial vehicles. They will not affect DOT compliance when properly installed. Regarding warranty, modifications to the frame can potentially impact manufacturer warranties on newer trucks. We recommend checking with your dealer if your truck is still under warranty. For trucks out of warranty, our crossmembers actually strengthen the frame and can help prevent stress cracks common in high-mileage medium-duty trucks.


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