null

Peterbilt 379 Parts

At 4 State Trucks, you’ll find everything you need to keep your iconic 379 model running strong and looking sharp. From bumpers and exhausts to fuel tanks, fenders, and chrome trim, we’ve got Peterbilt accessories and parts designed to fit your specific model year (87’ – 07’). Whether it’s a full-body restoration, a small component replacement, or a custom upgrade, our lineup has what you need.

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Seat Air Bag Replaces 7208, W028127208, W023587208

    Seat Air Bag Replaces 7208, W028127208, W023587208

    AUTOMANN USA

    $46.63
    Sleeve Type Seat Air BagImprove seat suspension and driver comfort with the Seat Air Bag, a high-quality sleeve-type replacement for 7208, W028127208, and W023587208. The top plate includes a...
    29-19200024
    SKU:
    29-19200024
    Product Type:
    Seats
    Make:
    Universal Items
    Height Options:
    13 1/2 Inch
    Ready To Ship:
    Yes
    $46.63
    Qty in Cart: 0
    Price:
    $46.63
    Subtotal:
  • 6- Hole Hub Gasket Replaces 2208N430, GKT009, 453795, 120MF315

    6- Hole Hub Gasket Replaces 2208N430, GKT009, 453795, 120MF315

    AUTOMANN USA

    $1.33
    4.800 ID X 6.275 OD X 5.550 Inch Hub GasketOptimize the longevity and performance of your wheel assembly with the 6-Hole Hub Gasket, a reliable replacement for 2208N430, GKT009, 453795, and 120MF315...
    29-20200058
    SKU:
    29-20200058
    Product Type:
    Wheels
    Shape Options:
    Round
    Make:
    Universal Items
    Diameter Options:
    6 1/4 Inch
    Ready To Ship:
    Yes
    $1.33
    Qty in Cart: 0
    Price:
    $1.33
    Subtotal:
  • CSM Half Fender Mounting Bracket For Flex Air & AG380 Suspension

    CSM Half Fender Mounting Bracket For Flex Air & AG380 Suspension

    CHROME SHOP MAFIA

    $487.99
    Half Fender Mounting Bracket By Chrome Shop MafiaSecure your truck's half fenders with the CSM Half Fender Mounting Bracket for Flex Air and AG380 suspensions. Chrome Shop Mafia engineered this...
    29-1110050
    SKU:
    29-1110050
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    Type Options:
    Half Fender
    Style Options:
    Flex Air Suspension
    $487.99
    Qty in Cart: 0
    Price:
    $487.99
    Subtotal:
  • 5 Inch Steel Flat U- Bolt Saddle Clamp Replaces P206603, RO5, FB-5ZN, FB5ZN, EC50UZP, 35757

    5 Inch Steel Flat U- Bolt Saddle Clamp Replaces P206603, RO5, FB-5ZN, FB5ZN, EC50UZP, 35757

    AUTOMANN USA

    $8.62
    5 Inch U- Bolt Saddle ClampExperience long-lasting performance and secure mounting with the 5 Inch Steel Flat U-Bolt Saddle Clamp, designed for 5-inch diameter pipes and tubing. Its zinc-coated steel...
    29-08000038
    SKU:
    29-08000038
    Diameter Options:
    5 Inch
    Material Options:
    Steel
    Product Type:
    Exhaust
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $8.62
    Qty in Cart: 0
    Price:
    $8.62
    Subtotal:
  • EGR Cooler For Cummins ISX Engine Replaces 2869133, 2878071, 2881783, 2881783NX, 2682806, 2682986, 3683069, 36833253, 3683435, 4089166, 4089436, 4952490, 4956008, 4956008NX

    EGR Cooler For Cummins ISX Engine Replaces 2869133, 2878071, 2881783, 2881783NX, 2682806, 2682986, 3683069, 36833253, 3683435, 4089166, 4089436, 4952490, 4956008, 4956008NX

    AFTERMARKET

    $1,584.99
    Cummins ISX EGR CoolerImprove engine longevity and emissions performance with the EGR Cooler for Cummins ISX Engine, compatible with 1st Generation ISX engines 2003-2007. Designed to replace multiple...
    29-07110009
    SKU:
    29-07110009
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,584.99
    Qty in Cart: 0
    Price:
    $1,584.99
    Subtotal:
  • 8 Inch Clutch Grease Hose Replaces SPCLT008P

    8 Inch Clutch Grease Hose Replaces SPCLT008P

    AFTERMARKET

    $18.22
    Clutch Grease HoseDeliver consistent clutch performance with the 8 Inch Clutch Grease Hose, a high-quality replacement for SPCLT008P. Equipped with 1/8 Inch - 27 NPT ends, one end 0.050 Inch A/F and...
    29-07050024
    SKU:
    29-07050024
    Product Type:
    Engine Parts
    Make:
    Universal Items
    Length Options:
    8 Inch
    $18.22
    Qty in Cart: 0
    Price:
    $18.22
    Subtotal:
  • Belt Tensioner Pulley- 0.669 ID X 2.913 OD X 2.251 Inch For Freightliner, International, Peterbilt, Volvo

    Belt Tensioner Pulley- 0.669 ID X 2.913 OD X 2.251 Inch For Freightliner, International, Peterbilt, Volvo

    AFTERMARKET

    $90.99
    Belt Tensioner PulleyAchieve smooth engine operation with the Belt Tensioner Pulley 0.669 ID x 2.913 OD x 2.251 Inch, designed for Freightliner, International, Peterbilt, and Volvo trucks. Built for...
    29-07060179
    SKU:
    29-07060179
    Product Type:
    Engine Parts
    Width Options:
    2 1/4 Inch
    Make:
    Freightliner
    Make:
    Peterbilt
    Make:
    Volvo
    Make:
    International
    $90.99
    Qty in Cart: 0
    Price:
    $90.99
    Subtotal:
  • CSM Half Fender Mounting Bracket For Lo Air Leaf & AG400L Suspension

    CSM Half Fender Mounting Bracket For Lo Air Leaf & AG400L Suspension

    CHROME SHOP MAFIA

    $299.99
    Half Fender Mounting Bracket By Chrome Shop MafiaThe CSM Half Fender Mounting Bracket is a precision-engineered bracket set by Chrome Shop Mafia, designed for mounting 1/2 fenders on Lo Air Leaf and...
    29-1110049
    SKU:
    29-1110049
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    Style Options:
    Air Leaf Suspension
    Type Options:
    Half Fender
    $299.99
    Qty in Cart: 0
    Price:
    $299.99
    Subtotal:
  • U- Joint Strap Kit Replaces 205-70-19, N2057018X, 250N7018X, 2500675C91

    U- Joint Strap Kit Replaces 205-70-19, N2057018X, 250N7018X, 2500675C91

    AUTOMANN USA

    $25.66
    U- Joint Strap Kit For SPL250 SeriesKeep your driveshaft secure with this high-strength U-Joint Strap Kit, engineered for 205-70-19, N2057018X, 250N7018X, and 2500675C91. Featuring two durable caps...
    29-05210019
    SKU:
    29-05210019
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Position:
    Kit Full
    $25.66
    Qty in Cart: 0
    Price:
    $25.66
    Subtotal:
  • Pressure Protection Valve Replaces HDXKN20541, GTA20541, KN20541, N30103BB, 20QE3218M, RKN20541, TV20541

    Pressure Protection Valve Replaces HDXKN20541, GTA20541, KN20541, N30103BB, 20QE3218M, RKN20541, TV20541

    AUTOMANN USA

    $21.08
    Pressure Protection ValveExperience consistent air pressure control with this robust Pressure Protection Valve, replacing HDXKN20541, GTA20541, KN20541, N30103BB, 20QE3218M, RKN20541, and TV20541...
    29-051700039
    SKU:
    29-051700039
    Rating:
    65 PSI
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $21.08
    Qty in Cart: 0
    Price:
    $21.08
    Subtotal:
  • 4.06 To 4.38 Inch Stainless Steel T- Bolt Clamp Replaces B92240406, 32863, HTS406

    4.06 To 4.38 Inch Stainless Steel T- Bolt Clamp Replaces B92240406, 32863, HTS406

    AUTOMANN USA

    $11.94
    4.06 To 4.38 Inch T- Bolt ClampSecure your hose connections with this premium 4.06 to 4.38 Inch Stainless Steel T-Bolt Clamp, a reliable replacement for B92240406, 32863, and HTS406. Constructed from...
    29-070200029
    SKU:
    29-070200029
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Width Options:
    3/4 Inch
    $11.94
    Qty in Cart: 0
    Price:
    $11.94
    Subtotal:
  • 5 Inch Aluminized Steel Pre- Formed Band Clamp Replaces K15067, N3550PLAG, W33970

    5 Inch Aluminized Steel Pre- Formed Band Clamp Replaces K15067, N3550PLAG, W33970

    AUTOMANN USA

    $10.02
    5 Inch Pre- Formed Band ClampBuilt for durability and performance, the 5 Inch Aluminized Steel Pre-Formed Band Clamp secures exhaust connections on 5-inch pipes with ease. Its lap joint and stepped...
    29-08000037
    SKU:
    29-08000037
    Shape Options:
    Round
    Diameter Options:
    5 Inch
    Product Type:
    Exhaust
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    $10.02
    Qty in Cart: 0
    Price:
    $10.02
    Subtotal:
  • 12V Air Dryer Assembly Replaces R955300, 4006110590

    12V Air Dryer Assembly Replaces R955300, 4006110590

    AUTOMANN USA

    $172.99
    SS1200P Type Air Dryer AssemblyKeep your truck's air system in peak condition with the 12V Air Dryer Assembly, a premium replacement for R955300 and 4006110590. This SS1200P assembly with external...
    29-051700037
    SKU:
    29-051700037
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $172.99
    Qty in Cart: 0
    Price:
    $172.99
    Subtotal:
  • Air Spring Rolling Lobe With Plastic Base Replaces W013589372, W014559372, W01M589372, 58520002, 585202, 64489002, 64489-2, 87QL57M, 25173616, 8083871, 68612, 910-18.5P095

    Air Spring Rolling Lobe With Plastic Base Replaces W013589372, W014559372, W01M589372, 58520002, 585202, 64489002, 64489-2, 87QL57M, 25173616, 8083871, 68612, 910-18.5P095

    AUTOMANN USA

    $299.99
    Replacement Air Spring Rolling LobeAchieve consistent suspension performance with the Air Spring Rolling Lobe with Plastic Base, engineered for precision, strength, and durability. This replacement...
    29-051000027
    SKU:
    29-051000027
    Diameter Options:
    10 Inch
    Material Options:
    Plastic/Poly
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $299.99
    Qty in Cart: 0
    Price:
    $299.99
    Subtotal:
  • Relay Valve Replaces EMDKN28510N, KN28510X, 5396KN28510, KN28510, N30108BL, 034057

    Relay Valve Replaces EMDKN28510N, KN28510X, 5396KN28510, KN28510, N30108BL, 034057

    AUTOMANN USA

    $38.75
    RG2 Type Relay ValveTake control of your air brake system with confidence using this robust RG2 Relay Valve. Built for heavy-duty trucks, it features a 5.6 PSI crack pressure and a 1.5-inch...
    29-051700038
    SKU:
    29-051700038
    Diameter Options:
    1/2 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $38.75
    Qty in Cart: 0
    Price:
    $38.75
    Subtotal:
  • Transmission Input Shaft Assembly Replaces E6HZ7017C, FULS1659, 1000CLAS1659, 3088S1659, A3297Y1351, 1091660

    Transmission Input Shaft Assembly Replaces E6HZ7017C, FULS1659, 1000CLAS1659, 3088S1659, A3297Y1351, 1091660

    AFTERMARKET

    $65.99
    Input Shaft Assembly For Fuller RT Series TransmissionsThe Transmission Input Shaft Assembly offers superior quality and reliability for Fuller RT series transmissions, replacing E6HZ7017C, FULS1659,...
    29-07050025
    SKU:
    29-07050025
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $65.99
    Qty in Cart: 0
    Price:
    $65.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    King Pin Kit W/ No Ream Spiral Bushings Replaces KH931L, R202011

    King Pin Kit W/ No Ream Spiral Bushings Replaces KH931L, R202011

    AUTOMANN USA

    Now: $325.49
    Was: $464.99
    No Ream Spiral Bushing King Pin KitRestore your truck's steering precision with the King Pin Kit W/ No-Ream Spiral Bushings, built for durability, accuracy, and heavy-duty operation. Designed to...
    29-050900045
    SKU:
    29-050900045
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Position:
    Kit Full
    Diameter Options:
    2 Inch
    Length Options:
    11 Inch
    Now: $325.49
    Was: $464.99
    Qty in Cart: 0
    Price:
    Now: $325.49
    Was: $464.99
    Subtotal:
  • Air Spring Rolling Lobe With Plastic Base Replaces W013589865, 67043002, 21217038, 23563385, 75266, 910BS-17P1192

    Air Spring Rolling Lobe With Plastic Base Replaces W013589865, 67043002, 21217038, 23563385, 75266, 910BS-17P1192

    AUTOMANN USA

    $197.99
    Replacement Air Spring Rolling LobeEnhance your truck's suspension reliability with the Air Spring Rolling Lobe with Plastic Base, designed for demanding heavy-duty applications. This air spring...
    29-051000026
    SKU:
    29-051000026
    Material Options:
    Plastic/Poly
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Diameter Options:
    9 Inch
    $197.99
    Qty in Cart: 0
    Price:
    $197.99
    Subtotal:
  • 72 Inch ABS Sensor Extension Cable Replaces TDAS4497130180, 8945900672, S4497130180, 4497130180

    72 Inch ABS Sensor Extension Cable Replaces TDAS4497130180, 8945900672, S4497130180, 4497130180

    AUTOMANN USA

    $18.43
    2 Wire ABS Sensor Extension CableKeep your ABS system running smoothly with this high-performance 72 Inch ABS Sensor Extension Cable, compatible with 4497130180, TDAS4497130180, S4497130180, and...
    29-051700040
    SKU:
    29-051700040
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    Length Options:
    72 Inch
    Ready To Ship:
    Yes
    $18.43
    Qty in Cart: 0
    Price:
    $18.43
    Subtotal:
  • Bulldog HD Rear Shock Absorber 9.41 Inch Stroke Replaces 8086053, 316311,359013201, 65466, 8077874, 8086651, 8169859, 85047, 89435 & M85047

    Bulldog HD Rear Shock Absorber 9.41 Inch Stroke Replaces 8086053, 316311,359013201, 65466, 8077874, 8086651, 8169859, 85047, 89435 & M85047

    BULLDOG HD SHOCKS

    $72.99
    Heavy Duty Rear Shock AbsorberTake control of your truck's rear suspension with the Bulldog HD Rear Shock Absorber, crafted for heavy-duty reliability and long-lasting performance. This shock...
    29-050000076
    SKU:
    29-050000076
    Position:
    Rear
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Material Options:
    Steel
    Length Options:
    25 Inch
    Color:
    Black
    Diameter Options:
    2 1/4 Inch
    $72.99
    Qty in Cart: 0
    Price:
    $72.99
    Subtotal:
  • Total: items /

Adding your products to cart

Shop for Repair & Performance Parts for the Peterbilt 379

We stock aftermarket parts from top-tier brands, each engineered to meet or exceed classic OEM Peterbilt 379 parts for both newer and older 379 model years. Replacement parts reduce downtime and can enhance the efficiency of your big rig. Easily swap out worn-out or broken mechanical components: - Turbochargers and exhaust manifolds. - Radiators, heater hoses, and electrical components. -Peterbilt 379 front shocks, air-ride suspension hardware and drivetrain or powertrain replacements. Installing high-quality aftermarket performance upgrades can lead to a positive ROI and stronger performance. Whether your Peterbilt needs an exhaust system upgrade or an extensive suspension rebuild, we've got the parts to get the job done.

Add Polished Chrome Upgrades

Elevate your truck's look with exterior chrome parts: stainless steel visors, grilles, rear fenders, and front bumpers for Peterbilt 379. Add larger Peterbilt diesel fuel storage tanks and a new set of Peterbilt 379 chrome stack tops.

Customize the Interior with Peterbilt 379 Accessories

Our Peterbilt 379 interior accessories let you mix and match designs to fit your truck's theme. For decades, we've helped source parts for drivers to build their custom show trucks. Customizing the interior? If you can dream it, there's likely a product to help you build it. Browse through dash trims, upholstery, dual-tone interior cab lights, vent trim covers, custom foot pedals, and more. Interior accessories help to customize the entirety of your rig. You can add unique rear sleeper window shapes, chrome-polished mirror accessories, cabin doors, and in-cab vinyl flooring kits. When it comes to fine-tuning your custom interior, there are endless options. Filter through a vast selection of products via the materials, design features, sizes, and aftermarket brands that truckers trust. At the bottom of the page, you can review the item details, check for product specs, search for limited-time discounts on popular items, and add the order to cart. Easy.

Frequently Asked Questions About Peterbilt 379 Parts

What years are Peterbilt 379 parts compatible with, and will they fit my specific model?

Most Peterbilt 379 parts fit 1987–2007 trucks, but fitment depends on the exact part and your setup (standard vs extended hood, trim packages, modifications). Always confirm OEM specs and model details before ordering. For custom builds, contact support with your truck info.

What's the difference between aftermarket and OEM Peterbilt 379 parts in terms of quality and durability?

OEM parts match factory specs and usually cost more. Quality aftermarket parts can perform similarly for 30–50% less, especially for chrome and accessories. Look for strong materials (ex: 16-gauge+ bumpers), good plating/finishing, and a warranty—avoid ultra-cheap parts that rust or peel quickly.

How difficult is it to install Peterbilt 379 bumpers and what tools do I need?

Most installs take 2–4 hours with basic tools: socket set (especially 3/4" and 7/8"), torque wrench, jack stands/lift, and ideally a helper. Many bumpers use factory mounts; some may need minor drilling. Rusted hardware and alignment are the usual challenges. Pro install is often $200–$400.

What chrome and finish options are available for Peterbilt 379 parts, and how do they hold up?

Triple chrome: best shine, needs regular upkeep (especially in winter). Powder coat: tough and chip-resistant, less mirror-like. Polished stainless: higher upfront cost, won’t rust, low maintenance. Choose based on climate and how much maintenance you want to do.

Which Peterbilt 379 parts should I prioritize replacing for both appearance and functionality?

Start with safety items (headlights/marker lights). Next, replace rust-prone parts like bumpers, battery boxes, and step plates. Then move to high-impact upgrades like air cleaners and exhaust. Interior items (dash panels, handles) improve daily comfort. Prices can vary. Budget $2,000-5,000 for a comprehensive exterior refresh, or tackle projects individually starting with the most visible or damaged components.


Introducing the Official 4 State Trucks Mobile App – Gear Up On the Go!