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Chrome Rush countdown – 14% off semi truck parts and chrome accessories at 4 State Trucks
Chrome Rush countdown – 14% off semi truck parts and chrome accessories at 4 State Trucks

Peterbilt 379 Frame Crossmembers & Covers

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • 60.875 Inch Cross Tube - 1.75 In OD, 1-1/4 In-12 Ends Replaces A3102W2909

    60.875 Inch Cross Tube - 1.75 In OD, 1-1/4 In-12 Ends Replaces A3102W2909

    AFTERMARKET

    $179.99
    60.875 Inch C To C Cross Tube Replaces A3102W2909* High Quality Cross Tube* 1-1/4 Inch-12 I.D.* 1.75 Inch O.D.* 60.875 Inch Length* Made In USA* Sold Individually * Warranty On Cross Tubes Against...
    29-05090147
    SKU:
    29-05090147
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Length Options:
    61 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $179.99
    Qty in Cart: 0
    Price:
    $179.99
    Subtotal:
  • 60.56 Inch Cross Tube, 1.625 In OD, 1-1/8 In-12 Ends Replaces 140TR107

    60.56 Inch Cross Tube, 1.625 In OD, 1-1/8 In-12 Ends Replaces 140TR107

    AFTERMARKET

    $211.99
    60.56 Inch C To C Cross Tube Replaces 140TR107 1005693, 1006145* High Quality Cross Tube* 1-1/8 Inch-12 I.D.* 1.625 Inch O.D.* 60.560 Inch Length* Made In USA* Sold Individually * Warranty On Cross...
    29-05090141
    SKU:
    29-05090141
    Length Options:
    60 1/2 Inch
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $211.99
    Qty in Cart: 0
    Price:
    $211.99
    Subtotal:
  • 56 Inch Cross Tube - 2 In OD, 1-1/4 In-12 Ends Replaces 820633

    56 Inch Cross Tube - 2 In OD, 1-1/4 In-12 Ends Replaces 820633

    AFTERMARKET

    $183.99
    56 Inch C To C Cross Tube Replace 820633* High Quality Cross Tube* 1-1/4 Inch-12 I.D.* 2.00 Inch O.D.* 56.00 Inch Length* Made In USA* Sold Individually * Warranty On Cross Tubes Against Defects In...
    29-05090139
    SKU:
    29-05090139
    Truck Class:
    Heavy Duty
    Length Options:
    56 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $183.99
    Qty in Cart: 0
    Price:
    $183.99
    Subtotal:
  • 20 Inch Fixed Torque Rod W/ 1-1/4 In OD Shaft, Passenger Side

    20 Inch Fixed Torque Rod W/ 1-1/4 In OD Shaft, Passenger Side

    AFTERMARKET

    $615.99
    Driver Side 20 Inch C To C Torque Rod Replaces 90045485* High Quality Torque Rod* Includes  - 4.375 Inch Torque Rod Bushing  - 8 Inch Torque Rod Bushing* 1-1/4 Inch Shaft Diameter* 20 Inch C To C*...
    29-05100182
    SKU:
    29-05100182
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Position:
    Passenger Side
    Length Options:
    20 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $615.99
    Qty in Cart: 0
    Price:
    $615.99
    Subtotal:
  • 19.625 Inch Adjustable Torque Rod, 1-1/4 Inch Dia Replaces 90045539

    19.625 Inch Adjustable Torque Rod, 1-1/4 Inch Dia Replaces 90045539

    AFTERMARKET

    $573.99
    19.625 Inch C To C Torque Rod Replaces 90045539* High Quality Torque Rod * 19.625 Inch * Shaft Diameter- 1-1/4 Inch* (2) Torque Rod Bushing* Side A And B- Straddle* Made In USA* Sold Individually *...
    29-05090131
    SKU:
    29-05090131
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Length Options:
    19 5/8 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $573.99
    Qty in Cart: 0
    Price:
    $573.99
    Subtotal:
  • Tie Rod End 5.625 Inch W/ 1-1/8 Inch-12 Thread- Passenger Side

    Tie Rod End 5.625 Inch W/ 1-1/8 Inch-12 Thread- Passenger Side

    AFTERMARKET

    $81.99
    5.625 Inch Length C To E Passenger Side Tie Rod End Replaces 132284For smooth steering and consistent response, this passenger side tie rod end offers a rugged design and precision fit. The 1-1/8...
    29-05090150
    SKU:
    29-05090150
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Length Options:
    5 5/8 Inch
    Position:
    Passenger Side
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $81.99
    Qty in Cart: 0
    Price:
    $81.99
    Subtotal:
  • 55.50 Inch Cross Tube - 2.50 In OD, 1-5/8 In-12 Ends

    55.50 Inch Cross Tube - 2.50 In OD, 1-5/8 In-12 Ends

    AFTERMARKET

    $334.99
    55.50 Inch C To C Cross Tube* High Quality Cross Tube* 55.50 Inch Length* 2.50 Inch O.D.* 1-5/8 Inch-12 I.D.* (2) Sleeve Adapters At 1-5/8 Inch 12 OD To 1-1/4 Inch-12 ID Threading On Both Sides* Made...
    29-05090127
    SKU:
    29-05090127
    Material Options:
    Steel
    Length Options:
    55 1/2 Inch
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $334.99
    Qty in Cart: 0
    Price:
    $334.99
    Subtotal:
  • 64 Inch Cross Tube - 2 In OD, 1-1/4 Inch-12 Ends Replaces 820635

    64 Inch Cross Tube - 2 In OD, 1-1/4 Inch-12 Ends Replaces 820635

    AFTERMARKET

    $233.99
    64 Inch Cross Tube Replaces 820635Built for toughness and precision, this 64 Inch Cross Tube offers superior strength for your truck's steering system. With a 2.00-inch outer diameter and 1-1/4...
    29-05090125
    SKU:
    29-05090125
    Length Options:
    64 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $233.99
    Qty in Cart: 0
    Price:
    $233.99
    Subtotal:
  • 54.61 Inch Cross Tube - 1.75 In OD, 1-1/4 In-12 Ends Replaces 1009011

    54.61 Inch Cross Tube - 1.75 In OD, 1-1/4 In-12 Ends Replaces 1009011

    AFTERMARKET

    $202.99
    54.61 Inch C To C Cross Tube Replaces 1009011Built for toughness, the 54.61 Inch Cross Tube delivers the support your truck needs for challenging roads. With a 1.75-inch outer diameter and 1-1/4...
    29-05090123
    SKU:
    29-05090123
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Length Options:
    54 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $202.99
    Qty in Cart: 0
    Price:
    $202.99
    Subtotal:
  • 59.38 Inch Cross Tube - 1.625 In OD, 1-1/8 In-12 Ends Replaces 140TR106

    59.38 Inch Cross Tube - 1.625 In OD, 1-1/8 In-12 Ends Replaces 140TR106

    AFTERMARKET

    $201.99
    59.38 Inch Cross Tube Replaces 140TR106* High Quality Cross Tube* 1-1/8 Inch-12 I.D.* 1.625 Inch O.D.* 59.380 Inch Length* Made In USA* Sold Individually * Warranty On Cross Tubes Against Defects In...
    29-05090144
    SKU:
    29-05090144
    Length Options:
    59 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $201.99
    Qty in Cart: 0
    Price:
    $201.99
    Subtotal:
  • 54 Inch Cross Tube - 1.75 In OD, 1-1/4 Inch-12 Ends Replaces 818817

    54 Inch Cross Tube - 1.75 In OD, 1-1/4 Inch-12 Ends Replaces 818817

    AFTERMARKET

    $200.99
    54 Inch C To C Cross Tube Replaces 818817, 820661* High Quality Cross Tube* 1-1/4 Inch-12 I.D.* 1.75 Inch O.D.* 54.00 Inch Length* Made In USA* Sold Individually * Warranty On Cross Tubes Against...
    29-05090142
    SKU:
    29-05090142
    Material Options:
    Steel
    Length Options:
    54 Inch
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $200.99
    Qty in Cart: 0
    Price:
    $200.99
    Subtotal:
  • 60.410 Inch Cross Tube - 1.75 In OD, 1-1/4 In-12 Ends, Replaces 88936083

    60.410 Inch Cross Tube - 1.75 In OD, 1-1/4 In-12 Ends, Replaces 88936083

    AFTERMARKET

    $189.99
    60.41 Inch C To C Cross Tube Replaces 88936083, 7Qh331P4. 8226L20Rt1364X1* High Quality Cross Tube* 60.410 Inch Length* 1.75 Inch OD* 1-1/4 Inch-12 ID* Made In USA* Sold Individually* Warranty On...
    29-05090119
    SKU:
    29-05090119
    Length Options:
    60 Inch
    Material Options:
    Stainless Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $189.99
    Qty in Cart: 0
    Price:
    $189.99
    Subtotal:
  • 62.25 Inch Cross Tube - 1.75 In OD, 1-1/8 In-12 Ends Replaces 1009249, 806963

    62.25 Inch Cross Tube - 1.75 In OD, 1-1/8 In-12 Ends Replaces 1009249, 806963

    AFTERMARKET

    $279.99
    62.25 Inch C To C Cross Tube Replaces 1009249, 806963Reinforce your truck's chassis with this high-quality 62.25 Inch Cross Tube, built to deliver strength and durability where you need it most...
    29-05090121
    SKU:
    29-05090121
    Length Options:
    62 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $279.99
    Qty in Cart: 0
    Price:
    $279.99
    Subtotal:
  • 53.54 Inch Cross Tube, 1.812 In OD, 1-1/4 In-12 Ends Replaces A3102Y3847

    53.54 Inch Cross Tube, 1.812 In OD, 1-1/4 In-12 Ends Replaces A3102Y3847

    AFTERMARKET

    $165.99
    53.54 Inch C To C Cross Tube Replaces A3102Y3847* High Quality Cross Tube* 1-1/4 Inch-12 I.D.* 1.812 Inch O.D.* 53.540 Inch Length* Made In USA* Sold Individually * Warranty On Cross Tubes Against...
    29-05090140
    SKU:
    29-05090140
    Length Options:
    53 1/2 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $165.99
    Qty in Cart: 0
    Price:
    $165.99
    Subtotal:
  • 60.50 Inch Cross Tube - 2 In OD, 1-1/8 In-12 Ends Replaces 1006732

    60.50 Inch Cross Tube - 2 In OD, 1-1/8 In-12 Ends Replaces 1006732

    AFTERMARKET

    $173.99
    60.50 Inch C To C Cross Tube Replaces 1006732* High Quality Cross Tube* 1-1/8 Inch-12 I.D.* 2.00 Inch O.D.* 60.50 Inch Length* Made In USA* Sold Individually * Warranty On Cross Tubes Against Defects...
    29-05090138
    SKU:
    29-05090138
    Material Options:
    Steel
    Length Options:
    60 1/2 Inch
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $173.99
    Qty in Cart: 0
    Price:
    $173.99
    Subtotal:
  • 58.12 Inch Cross Tube - 1.75 In OD, 1-1/8 In-12 Ends Replaces A3102V3454

    58.12 Inch Cross Tube - 1.75 In OD, 1-1/8 In-12 Ends Replaces A3102V3454

    AFTERMARKET

    $197.99
    58.12 Inch C To C Cross Tube Replaces A3102V3454* High Quality Cross Tube* 58.12 Inch Length* 1.75 Inch OD* 1-1/8 Inch-12 ID* Made In USA* Sold Individually* Warranty On Cross Tubes Against Defects...
    29-05090117
    SKU:
    29-05090117
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Length Options:
    58 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $197.99
    Qty in Cart: 0
    Price:
    $197.99
    Subtotal:
  • 17.625 Inch Fixed Torque Rod W/ Blank 1-1/4 Inch Dia. Shaft Replaces 90045540

    17.625 Inch Fixed Torque Rod W/ Blank 1-1/4 Inch Dia. Shaft Replaces 90045540

    AFTERMARKET

    $217.99
    17.625 Inch Torque Rod W/ Blank Shaft Replaces 90045540* High Quality Torque Rod* Includes  - Torque Rod Bushing - Apex Bushing  - Torque Rod Blank* 1-1/4 Inch Shaft Diameter* 17-5/8 Inch C To C*...
    29-05090135
    SKU:
    29-05090135
    Truck Class:
    Heavy Duty
    Length Options:
    17 5/8 Inch
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $217.99
    Qty in Cart: 0
    Price:
    $217.99
    Subtotal:
  • 60.60 Inch Cross Tube - 1.50 In OD, 1-1/8 In-12 Ends Replaces 339TR119

    60.60 Inch Cross Tube - 1.50 In OD, 1-1/8 In-12 Ends Replaces 339TR119

    AFTERMARKET

    $206.99
    60.60 Inch C To C Cross Tube Replaces 339TR119* High Quality Cross Tube* 60.60 Inch Length* 1.50 Inch OD* 1-1/8 Inch-12 ID* Made In USA* Sold Individually* Warranty On Cross Tubes Against Defects In...
    29-05090113
    SKU:
    29-05090113
    Length Options:
    60 Inch
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $206.99
    Qty in Cart: 0
    Price:
    $206.99
    Subtotal:
  • 20 Inch Adjustable Torque Rod, 1-1/4 Inch Replaces 90045537

    20 Inch Adjustable Torque Rod, 1-1/4 Inch Replaces 90045537

    AFTERMARKET

    $336.99
    20.00 Inch C To C Torque Rod Replaces 90045537* High Quality Torque Rod * 20.00 Inch C To C* Shaft Diameter- 1-1/4 Inch* (2) Torque Rod Bushing* Side A And B- Straddle* Side A Angle 5 Degrees* Side B...
    29-05090132
    SKU:
    29-05090132
    Length Options:
    20 Inch
    Material Options:
    Plastic/Poly
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $336.99
    Qty in Cart: 0
    Price:
    $336.99
    Subtotal:
  • 53.63 Inch Cross Tube - 1.50 In OD, 1-1/8 In-12 Ends Replaces 120TR108

    53.63 Inch Cross Tube - 1.50 In OD, 1-1/8 In-12 Ends Replaces 120TR108

    AFTERMARKET

    $167.99
    53.625 Inch C To C Cross Tube Replaces 120TR108 5C4Z3280AA, 5C4Z3280BB, 5C5O3280AA,1668403C91* High Quality Cross Tube* 1.50 Inch OD* 53.63 Inch Length* 1-1/8 Inch-12 ID* Made In USA* Sold...
    29-05090111
    SKU:
    29-05090111
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Length Options:
    53 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $167.99
    Qty in Cart: 0
    Price:
    $167.99
    Subtotal:
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Discover Peterbilt 379 Rear Crossmember Designs

Reinforce your truck's structural support with Peterbilt 379 Frame Crossmembers & Covers. This lineup of aftermarket products includes high-quality fiberglass and stainless steel rear frame covers, fuel tank filler frames, rear frame covers, replacement cross members, and other essential components to keep your truck's frame in top condition. Handle the demands of commercial hauling with the best-in-class cross members featuring durable, stainless steel materials, corrosion-resistant finishes, and easy installation instructions. If you're looking for improved structural integrity for your frame, secure mounting points, and better load management, invest in quality frame cross members and covers to bolster your Peterbilt 379.

Frequently Asked Questions About Peterbilt 379 Frame Crossmembers & Covers

What are frame crossmembers and covers used for on a Peterbilt 379?

Frame crossmembers are structural components that run horizontally between the frame rails, providing rigidity and support to the chassis. Covers are typically used to shield these crossmembers or nearby frame sections from road debris, moisture, and corrosion while also giving the underside of the truck a cleaner, finished appearance.

Will these crossmembers and covers fit my specific Peterbilt 379 model year?

Peterbilt 379 frames can vary slightly depending on the model year and how the truck was originally configured, so it is important to check listed specifications such as frame rail width, mounting hole patterns, and wheelbase before purchasing. If you are unsure about fitment, reach out to our team with your VIN or frame measurements so we can help confirm compatibility.

What materials are these crossmembers and covers made from, and how do they hold up over time?

Most crossmembers and covers in this category are made from steel or aluminum, depending on the specific part and intended use. Steel components typically offer higher strength for structural applications, while aluminum covers are often chosen for reduced weight and natural corrosion resistance. Finish options may include raw metal, painted, or powder-coated surfaces to help protect against rust and wear from road exposure.

Are these parts a direct bolt-on replacement, or will modifications be needed for installation?

Many crossmembers and covers are designed to bolt into the existing mounting points on the frame, but installation can vary based on the part and whether your truck has had prior frame modifications. We recommend reviewing the product description for specific installation notes and having a qualified technician inspect your frame before installation, especially for structural crossmembers.

Do frame crossmembers affect the structural integrity or warranty of my truck?

Crossmembers play a role in the overall strength and stability of the frame, so it is important to select a part rated for your truck's application and to have it installed correctly. Improper installation or using a part not suited for your frame configuration can affect performance and safety. If your truck is still under any manufacturer or aftermarket warranty, check with the applicable warranty provider before making frame-related changes.

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