Peterbilt Parts

Peterbilt Parts

Need some primo Peterbilt parts? Well, you just hit the jackpot. Here at 4 State Trucks, we're not messing around - we've got a treasure trove of both genuine and aftermarket Peterbilt parts and goodies that'll make your rig purr. Listen, we get it. Maybe you're babying your trusty workhorse, or perhaps you're shining up that show-stopper for the next big event. Either way, we've got your Peterbilt parts and your back. Our crew knows Petes inside and out, and they're itching to help you find that perfect part. Got a classic 379 that needs some love? We've got your parts. Rolling in a spanking new 579? No sweat, we've got those cutting-edge parts too.
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  • BESTfit 3.5 Inch Diameter X 10.5 X 16 Inch Aluminized Steel Type B Y-Pipe
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    BESTfit 3.5 Inch Diameter X 10.5 X 16 Inch Aluminized Steel Type B Y-Pipe

    BESTFIT TRUCK PARTS

    $282.99
    BESTfit 3.5 Inch Diameter X 10.5 X 16 Inch Aluminized Steel Type B Y-PipeCrafted from durable Aluminized Steel, this aftermarket Y-Pipe offers a versatile solution for exhaust systems. With dimensions of 3.5 inches in diameter, 10.5 inches in width, and...
    $282.99
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  • BESTfit 4 Inch 16G Aluminized Steel Inlet Elbow
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    BESTfit 4 Inch 16G Aluminized Steel Inlet Elbow

    BESTFIT TRUCK PARTS

    $69.35
    BESTfit 4 Inch 16G Aluminized Steel Inlet ElbowShield your exhaust system effectively with our Inlet Elbow, crafted from durable 16 gauge Aluminized Steel. With dimensions of 4 inches in diameter, 31.5 inches in overall length, and featuring a 4.5-inch...
    $69.35
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  • BESTfit Triple Convoluted Air Bag - Replaces SP3B22R, 578-93-3-100, FT-330-29, 64285, 8018, 8039, 3B12303, 93AR
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    BESTfit Triple Convoluted Air Bag - Replaces SP3B22R, 578-93-3-100, FT-330-29, 64285, 8018, 8039, 3B12303, 93AR

    BESTFIT TRUCK PARTS

    $381.99
    BESTfit Triple Convoluted Air BagPresenting our Air Spring Triple Convoluted, engineered with precision for superior performance. Crafted to perfection, this triple convoluted air spring boasts a load capacity of 5400 lbs at 80 PSI and 6800 lbs at 100...
    $381.99
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  • BESTfit Aluminized Stainless Steel Exhaust Pipe Replaces M66-7272-001 For Peterbilt 389 Day Cab
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    BESTfit Aluminized Stainless Steel Exhaust Pipe Replaces M66-7272-001 For Peterbilt 389 Day Cab

    BESTFIT TRUCK PARTS

    $898.99
    BESTfit Aluminized 409 Stainless Steel Exhaust Pipe Fits Peterbilt 389 Day CabIntroducing our 409 Aluminized Stainless Steel Exhaust Pipe designed to fit Day Cab models. Crafted in the USA, this aftermarket replacement part is sold individually. It...
    $898.99
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  • BESTfit Aluminum Inner Door Sill For Peterbilt 359 Passenger Side
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    BESTfit Aluminum Inner Door Sill For Peterbilt 359 Passenger Side

    BESTFIT TRUCK PARTS

    $223.99
    BESTfit Passenger Side Aluminum Inner Door Sill Fits Peterbilt 359 * High Quality Inner Door Sill* Made Of Aluminum* Non Polished* Passenger Side* Sold Individually* Made In The USA* Warranty On Inner Door Sills Against Defects In Workmanship & Material...
    $223.99
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    $223.99
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  • BESTfit Aluminum Inner Door Sill For Peterbilt 359 Driver Side
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    BESTfit Aluminum Inner Door Sill For Peterbilt 359 Driver Side

    BESTFIT TRUCK PARTS

    $227.99
    BESTfit Driver Side Aluminum Inner Door Sill Fits Peterbilt 359 * High Quality Inner Door Sill* Made Of Aluminum* Non Polished* Driver Side* Sold Individually* Made In The USA* Warranty On Inner Door Sills Against Defects In Workmanship & Material From...
    $227.99
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    $227.99
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  • Plastic Coolant Reservoir With 1 Large, 1 Small Port Replaces DR104004 For PACCAR T680, T880, 579
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    Plastic Coolant Reservoir With 1 Large, 1 Small Port Replaces DR104004 For PACCAR T680, T880, 579

    BESTFIT TRUCK PARTS

    $271.99
    Plastic Coolant Reservoir Fits Kenworth T680, T880 & Peterbilt 579Over time coolant reservoirs become susceptible to heat and engine vibration. This coolant reservoir with one large and one small port is manufactured and engineered with premium plastic...
    $271.99
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  • BESTfit 10 X 49.5 Inch Type 1 Muffler W/ Lifting Ring W/ 5 Inch Inlet/Outlet Replaces M66-6188, M101451 For PACCAR
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    BESTfit 10 X 49.5 Inch Type 1 Muffler W/ Lifting Ring W/ 5 Inch Inlet/Outlet Replaces M66-6188, M101451 For PACCAR

    BESTFIT TRUCK PARTS

    $699.99
    BESTfit Aluminized Steel Type 1 Muffler Fits Keworth & PeterbiltEnhance your vehicle's performance with our Aluminized Steel Muffler, proudly made in the USA. Featuring a sturdy construction, it measures 10 inches in diameter and 49.5 inches in length,...
    $699.99
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  • BESTfit Rear Mount Hood Cylinder Bracket For Peterbilt 359 Driver Or Passenger Side BESTfit Rear Mount Hood Cylinder Bracket For Peterbilt 359 Driver Or Passenger Side
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    BESTfit Rear Mount Hood Cylinder Bracket For Peterbilt 359 Driver Or Passenger Side

    BESTFIT TRUCK PARTS

    $101.99
    BESTfit Driver Or Passenger Side Rear Mount Hood Cylinder Bracket Fits Peterbilt 359 * High Quality Cylinder Rear Mounting Bracket* Made Of Aluminum* Dimensions- 6 Inch Length- 5 Inch Width- 2 Inch Height* For Driver Or Passenger Side* Sold Individually*...
    $101.99
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    $101.99
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  • BESTfit Water Pump With Housing For Cummins ISX 15 Engines - Replaces 3687590 BESTfit Water Pump With Housing For Cummins ISX 15 Engines - Replaces 3687590
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    BESTfit Water Pump With Housing For Cummins ISX 15 Engines - Replaces 3687590

    BESTFIT TRUCK PARTS

    $383.99
    BESTfit Cummins ISX Engine Water Pump With HousingRestore optimal coolant flow in your engine with our Heavy Duty Water Pump, complete with housing for hassle-free installation. This aftermarket replacement part ensures reliable performance and...
    $383.99
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  • BESTfit Replacement Turbocharger For Cummins B-Series Applications - Replaces 3538883, 3802882, 4033671 BESTfit Replacement Turbocharger For Cummins B-Series Applications - Replaces 3538883, 3802882, 4033671
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    BESTfit Replacement Turbocharger For Cummins B-Series Applications - Replaces 3538883, 3802882, 4033671

    BESTFIT TRUCK PARTS

    $369.99
    BESTfit Cummins B-Series Replacement TurbochargerExperience enhanced engine performance with our Heavy Duty Turbocharger designed for durability and reliability. Engineered to withstand temperatures up to 950 degrees, this turbocharger features a turbine...
    $369.99
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  • BESTfit Water Pump For CAT 3406B, 3406C Engines - Replaces 7C4957 / 1354926
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    BESTfit Water Pump For CAT 3406B, 3406C Engines - Replaces 7C4957 / 1354926

    BESTFIT TRUCK PARTS

    $444.99
    BESTfit Water Pump Fits Caterpillar 3406B, 3406C Engines With 74 Tooth 7.875 Inch Flat Gear - Replaces 1354926, 7C4957, 7C7019, OR8217Upgrade your engine's cooling system with our Water Pump, engineered for superior performance and reliability. Featuring...
    $444.99
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