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Kenworth T300-T450 Fuel Tanks

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  • Carbon Steel 53 Gallon Transfer Tank Compatible W/ Most Short Bed Trucks & Gooseneck Hitches

    Carbon Steel 53 Gallon Transfer Tank Compatible W/ Most Short Bed Trucks & Gooseneck Hitches

    AFTERMARKET

    $716.99
    Secure heavy loads using this Grade 70 yellow zinc-plated clevis grab hook for transport binder safety chains. Made from high-strength forged steel and finished with a durable yellow zinc coating,...
    PPR_204006
    SKU:
    PPR_204006
    Location:
    Made In USA
    Truck Class:
    Universal
    Color:
    Yellow
    Material Options:
    Steel
    Make:
    Universal Items
    Height Options:
    24 Inch
    Color:
    White
    Length Options:
    24 Inch
    Width Options:
    24 Inch
    Color:
    Black
    Product Type:
    Fuel Tanks
    $716.99
    Qty in Cart: 0
    Price:
    $716.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Robert James 24.5 Inch Quilted Vinyl Fuel Tank End Covers W/ 9 Inch Skirt & Color Options For Kenworth

    Robert James 24.5 Inch Quilted Vinyl Fuel Tank End Covers W/ 9 Inch Skirt & Color Options For Kenworth

    ROBERT JAMES ENTERPRISES

    $200.99 - $260.99
    Upgrade your fuel tanks with the 24.5 x 9 Inch Quilted Vinyl Fuel Tank Cover, ideal for various Kenworth models, including the K100, T2000, T600, T800, and W900 series. Manufactured by Robert James...
    PPR_201612
    SKU:
    PPR_201612
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Diameter Options:
    24 1/2 Inch
    Material Options:
    Vinyl
    Make:
    Kenworth
    Product Type:
    Fuel Tanks
    Color:
    Black
    Color:
    Blue
    Color:
    Purple
    Color:
    Red
    Color:
    Yellow
    Length Options:
    9 Inch
    Color:
    Brown
    Color:
    Teal
    Style Options:
    Quilted
    Color:
    Gray
    Color:
    White
    $200.99 - $260.99
    Qty in Cart: 0
    Price:
    $200.99 - $260.99
    Subtotal:
  • BESTfit Aluminum Fuel Tank 120 Gallon- 22 X 74 Inch- Front Fill For Kenworth T300 & T450 Driver/Passenger

    BESTfit Aluminum Fuel Tank 120 Gallon- 22 X 74 Inch- Front Fill For Kenworth T300 & T450 Driver/Passenger

    BESTFIT TRUCK PARTS

    $723.99
    Choose Option(s) to see description.Fitment* Fits Kenworth T300 1995 thru 2007* Fits Kenworth T450 1988 thru 1997BESTfit Aluminum Fuel Tank 120 Gallon- 22 X 74 Inch- Front Fill W/ Manifold- Driver...
    PPR_200920
    SKU:
    PPR_200920
    Capacity:
    120 Gallons
    Position:
    Front Fill
    Diameter Options:
    22 Inch
    Truck Class:
    Heavy Duty
    Shape Options:
    Cylindrical
    Material Options:
    Aluminum
    Make:
    Kenworth
    Product Type:
    Fuel Tanks
    Ready To Ship:
    Yes
    Type Options:
    Front Fill
    Size Options:
    11 Gauge
    Position:
    Passenger Side
    Position:
    Driver Side
    $723.99
    Qty in Cart: 0
    Price:
    $723.99
    Subtotal:
  • BESTfit Aluminum Fuel Tank 60 Gallon- 22 X 34 Inch- Rear Fill For Kenworth 2007-Older

    BESTfit Aluminum Fuel Tank 60 Gallon- 22 X 34 Inch- Rear Fill For Kenworth 2007-Older

    BESTFIT TRUCK PARTS

    $520.99
    This BestFit Fuel Tank is manufactured to OE specifications with the same materials as used in OE manufacturing, is rigorously tested under FMSCA regulations and ISO certified. We're so confident in...
    PPR_200672
    SKU:
    PPR_200672
    Diameter Options:
    22 Inch
    Truck Class:
    Heavy Duty
    Length Options:
    34 Inch
    Capacity:
    60 Gallons
    Material Options:
    Aluminum
    Make:
    Kenworth
    Product Type:
    Fuel Tanks
    Ready To Ship:
    Yes
    Size Options:
    11 Gauge
    Position:
    Passenger Side
    Position:
    Driver Side
    $520.99
    Qty in Cart: 0
    Price:
    $520.99
    Subtotal:
  • BESTfit Aluminum Fuel Tank 100 Gallon- 22 X 62 Inch- Rear Fill For Kenworth Rear Manifold

    BESTfit Aluminum Fuel Tank 100 Gallon- 22 X 62 Inch- Rear Fill For Kenworth Rear Manifold

    BESTFIT TRUCK PARTS

    $611.99
    This BestFit Fuel Tank is manufactured to OE specifications with the same materials as used in OE manufacturing, is rigorously tested under FMSCA regulations and ISO certified. We're so confident in...
    PPR_200368
    SKU:
    PPR_200368
    Length Options:
    60 Inch
    Truck Class:
    Heavy Duty
    Capacity:
    100 Gallons
    Position:
    Rear Fill
    Diameter Options:
    22 Inch
    Material Options:
    Aluminum
    Shape Options:
    Cylindrical
    Make:
    Kenworth
    Product Type:
    Fuel Tanks
    Ready To Ship:
    Yes
    Position:
    Driver Side
    Diameter Options:
    26 Inch
    Type Options:
    Rear Fill
    Size Options:
    11 Gauge
    Position:
    Passenger Side
    $611.99
    Qty in Cart: 0
    Price:
    $611.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Weld-In Curve Style Aluminum Flange With Female Pipe Thread Center

    Weld-In Curve Style Aluminum Flange With Female Pipe Thread Center

    AFTERMARKET

    $12.74
    If your project calls for a weld-in flange with a curved base, the curve-style aluminum flange with female pipe thread center is a straightforward option built for heavy-duty fabrication and repair...
    PPR_200367
    SKU:
    PPR_200367
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Product Type:
    Fuel Tanks
    Ready To Ship:
    Yes
    $12.74
    Qty in Cart: 0
    Price:
    $12.74
    Subtotal:
  • On Sale
    Limited Quantity Available
    FREE SHIPPING OVER $249
    Weld-In Flat Style Aluminum Flange With Female Pipe Thread Center

    Weld-In Flat Style Aluminum Flange With Female Pipe Thread Center

    AFTERMARKET

    $0.98 - $17.64
    For anyone needing a basic weld-in flange for pipe or tank fabrication, the 1?Inch Aluminum Flat Flange, 1.5?Inch Aluminum Flat Flange, 0.75?Inch Aluminum Flat Flange, 0.5?Inch Aluminum Flat Flange,...
    PPR_200366
    SKU:
    PPR_200366
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Product Type:
    Fuel Tanks
    Ready To Ship:
    Yes
    $0.98 - $17.64
    Qty in Cart: 0
    Price:
    $0.98 - $17.64
    Subtotal:
  • BESTfit Aluminum Fuel Tank 120 Gallon- 24.5 X 60 Inch- Front Fill W/ Center Manifold For Kenworth T300, T600, T800

    BESTfit Aluminum Fuel Tank 120 Gallon- 24.5 X 60 Inch- Front Fill W/ Center Manifold For Kenworth T300, T600, T800

    BESTFIT TRUCK PARTS

    $686.89
    This BestFit Fuel Tank is manufactured to OE specifications with the same materials as used in OE manufacturing, is rigorously tested under FMSCA regulations and ISO certified. We are so confident in...
    PPR_17080
    SKU:
    PPR_17080
    Diameter Options:
    24 1/2 Inch
    Truck Class:
    Heavy Duty
    Position:
    Front Fill
    Capacity:
    120 Gallons
    Height Options:
    24
    Material Options:
    Aluminum
    Shape Options:
    Cylindrical
    Make:
    Kenworth
    Product Type:
    Fuel Tanks
    Ready To Ship:
    Yes
    Position:
    Passenger Side
    Position:
    Driver Side
    Type Options:
    Front Fill
    Size Options:
    11 Gauge
    $686.89
    Qty in Cart: 0
    Price:
    $686.89
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit 1/2 NPT X 14 Inch Fuel Tank Pickup Tube

    BESTfit 1/2 NPT X 14 Inch Fuel Tank Pickup Tube

    BESTFIT TRUCK PARTS

    $37.47
    14 Inch Pick Up Tube By BESTfit* High Quality Pick Up Tube* Made Of Brass And Copper* Dimensions:  - 1/2 Inch Diameter  - 14 Inch Length, Cut To Fit Tank Depth  - 1/2 Inch Male Pipe Into Fuel Tank  -...
    29-060328
    SKU:
    29-060328
    Length Options:
    14 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Brass Copper
    Make:
    Universal Items
    Product Type:
    Fuel Tanks
    Ready To Ship:
    Yes
    $37.47
    Qty in Cart: 0
    Price:
    $37.47
    Subtotal:
  • Isspro Fuel Level Sender 250 To 40 Ohm For 15 Inch D Shaped Fuel Tanks

    Isspro Fuel Level Sender 250 To 40 Ohm For 15 Inch D Shaped Fuel Tanks

    ISSPRO

    $220.99
    Fuel Sending Unit By IssproThis sending unit is designed for D tanks that are 15 inches tall. It measures 40 ohms when the tank is empty and 250 ohms when it is full. It fits various models, making...
    29-060321
    SKU:
    29-060321
    Truck Class:
    Heavy Duty
    Style Options:
    Tube
    Make:
    Universal Items
    Product Type:
    Fuel Tanks
    $220.99
    Qty in Cart: 0
    Price:
    $220.99
    Subtotal:
  • Isspro Tube Style Fuel Sender 240 To 33 Ohm For 16 Inch Tall Square, Rectangular or D-Shaped Fuel Tanks

    Isspro Tube Style Fuel Sender 240 To 33 Ohm For 16 Inch Tall Square, Rectangular or D-Shaped Fuel Tanks

    ISSPRO

    $83.99
    15 Inch Fuel Level Sender W/ Standard Cap By IssproThis Fuel Sender is a tube-style unit designed for 15" tall square, rectangular, or D-shaped tanks. It operates within the 240 to 33 OHM range,...
    29-060316
    SKU:
    29-060316
    Truck Class:
    Heavy Duty
    Style Options:
    Tube
    Shape Options:
    D-Shape
    Make:
    Universal Items
    Product Type:
    Fuel Tanks
    $83.99
    Qty in Cart: 0
    Price:
    $83.99
    Subtotal:
  • FREE SHIPPING OVER $249
    2 Inch 11.5 TPI Brass Non-Vented Locking Fuel Cap

    2 Inch 11.5 TPI Brass Non-Vented Locking Fuel Cap

    VELVAC

    $79.99
    2 inch Locking Fuel Cap, Non- VentedKeep your fuel tank secure with this 2-inch non-vented brass fuel cap. Locks tight to prevent leaks and tampering. Ideal for various vehicles and equipment. Rest...
    29-060315
    SKU:
    29-060315
    Diameter Options:
    2 Inch
    Truck Class:
    Heavy Duty
    Style Options:
    Non Vented
    Material Options:
    Brass
    Make:
    Universal Items
    Product Type:
    Fuel Tanks
    Ready To Ship:
    Yes
    $79.99
    Qty in Cart: 0
    Price:
    $79.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Standard Flow Return Flow Splitter For Peterbilt, Kenworth, Ford, Sterling & Freightliner

    Standard Flow Return Flow Splitter For Peterbilt, Kenworth, Ford, Sterling & Freightliner

    VELVAC

    $48.65
    Return Flow Splitter- Standard FlowImprove fuel distribution with the Standard Flow Return Flow Splitter, engineered for Peterbilt, Kenworth, Ford, Sterling, and Freightliner trucks. This...
    29-060304
    SKU:
    29-060304
    Truck Class:
    Heavy Duty
    Style Options:
    Standard
    Material Options:
    Steel
    Make:
    Kenworth
    Make:
    Freightliner
    Make:
    Peterbilt
    Make:
    Ford
    Make:
    Sterling
    Product Type:
    Fuel Tanks
    Ready To Ship:
    Yes
    $48.65
    Qty in Cart: 0
    Price:
    $48.65
    Subtotal:
  • FREE SHIPPING OVER $249
    Isspro Fuel Sender Replaces Q21-1024-622, 5549-10714-24 For Kenworth W/ 24 Inch Diameter Tanks

    Isspro Fuel Sender Replaces Q21-1024-622, 5549-10714-24 For Kenworth W/ 24 Inch Diameter Tanks

    ISSPRO

    $111.99
    24.5 Inch Tank Fuel Sender By IssproOur Fuel Level Sender is designed to elevate your fuel monitoring for 24" diameter round tanks, with a resistance range of 240-33 ohms. This sender tailors its...
    29-060300
    SKU:
    29-060300
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Style Options:
    Tube
    Make:
    Kenworth
    Product Type:
    Fuel Tanks
    Ready To Ship:
    Yes
    $111.99
    Qty in Cart: 0
    Price:
    $111.99
    Subtotal:
  • FREE SHIPPING
    Minimizer Blank Fuel Tank Strap Covers For Peterbilt And Kenworth

    Minimizer Blank Fuel Tank Strap Covers For Peterbilt And Kenworth

    PANELITE

    $371.99
    Blank Fuel Tank Strap Covers By Minimizer Fits Peterbilt And Kenworth* High Quality Fuel Tank Strap Cover* Includes Hardware* Strap Cover Is Blank* For Use With Existing 2-1/2 Inch - 4 Inch Wide Tank...
    29-0601017
    SKU:
    29-0601017
    Truck Class:
    Heavy Duty
    Color:
    Silver
    Material Options:
    Stainless Steel
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Fuel Tanks
    $371.99
    Qty in Cart: 0
    Price:
    $371.99
    Subtotal:
  • BESTfit 2-9/16 Inch Sending Unit Block Off Plate

    BESTfit 2-9/16 Inch Sending Unit Block Off Plate

    BESTFIT TRUCK PARTS

    $10.50
    Sending Unit Block-Off Plate By BESTfitUse this block-off plate to cover the fuel tank sending unit opening. It seals the sender hole in the fuel tank. Get yours today at 4 State Trucks!* High...
    09-060325
    SKU:
    09-060325
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Fuel Tanks
    Ready To Ship:
    Yes
    $10.50
    Qty in Cart: 0
    Price:
    $10.50
    Subtotal:
  • FREE SHIPPING OVER $249
    Black Neoprene Rubber Fuel Tank Bib

    Black Neoprene Rubber Fuel Tank Bib

    AFTERMARKET

    $18.61
    Fuel Tank Protector Fits Most Tanks* High Quality Fuel Tank Bib* Made Of Black 3/16 Inch Neoprene Rubber* Protect Your Tanks, Save Your Shine.* Designed To Keep Your Fuel Cap From Rubbing or...
    09-060307
    SKU:
    09-060307
    Truck Class:
    Universal
    Material Options:
    Rubber
    Make:
    Universal Items
    Product Type:
    Fuel Tanks
    Color:
    Black
    Ready To Ship:
    Yes
    $18.61
    Qty in Cart: 0
    Price:
    $18.61
    Subtotal:
  • FREE SHIPPING OVER $249
    Isspro 24 Inch Tube Style Sender For Fuel Gauge For Deep L Shaped Transfer Tank

    Isspro 24 Inch Tube Style Sender For Fuel Gauge For Deep L Shaped Transfer Tank

    ISSPRO

    $109.99
    24 Inch Tube Style Sender For Fuel Gauge By IssproThis 24-inch tube-style sender is designed to fit deep L-shaped transfer tanks and is compatible with ISSPRO fuel gauges. It is sold individually and...
    09-0603029
    SKU:
    09-0603029
    Truck Class:
    Universal
    Length Options:
    24 Inch
    Style Options:
    Tube
    Make:
    Universal Items
    Product Type:
    Fuel Tanks
    Ready To Ship:
    Yes
    $109.99
    Qty in Cart: 0
    Price:
    $109.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Isspro Steel Fuel Sender Adapter Plate

    Isspro Steel Fuel Sender Adapter Plate

    ISSPRO

    $31.42
    Round Fuel Sender Plate By IssproThe Isspro Fuel Sender Plate is a round steel plate with a sender hole cut in the center. It is designed to cover the sender hole in a fuel tank, providing a block...
    09-0603028
    SKU:
    09-0603028
    Truck Class:
    Universal
    Material Options:
    Steel
    Shape Options:
    Round
    Make:
    Universal Items
    Product Type:
    Fuel Tanks
    $31.42
    Qty in Cart: 0
    Price:
    $31.42
    Subtotal:
  • FREE SHIPPING OVER $249
    Isspro Fuel Sender Rubber Gasket

    Isspro Fuel Sender Rubber Gasket

    ISSPRO

    $13.96
    Fuel Tank Sending Unit Gasket By IssproThe Isspro Fuel Tank Sending Unit Gasket fits many standard SAE 5-hole fuel senders and gauges. Isspro gauges, sensors, and sending units are trusted worldwide...
    09-0603027
    SKU:
    09-0603027
    Truck Class:
    Universal
    Shape Options:
    Round
    Material Options:
    Rubber
    Make:
    Universal Items
    Product Type:
    Fuel Tanks
    Ready To Ship:
    Yes
    $13.96
    Qty in Cart: 0
    Price:
    $13.96
    Subtotal:
  • Total: items /

Adding your products to cart

Kenworth T300-T450 Fuel Tanks: Need fuel system parts for your Kenworth T300 or T450? This product lineup has it all'fuel tanks, brackets, caps, senders, steps, and more. Built tough for durability and designed to fit seamlessly, these parts make repairs, maintenance, or upgrades easy. Whether you're replacing a tank, frame pieces, drivetrain parts or upgrading engine cooling, you'll find what you need to keep your truck fueled up and looking sharp!

Frequently Asked Questions About Kenworth T300-T450 Fuel Tanks

What sizes and capacities are available for Kenworth T300-T450 fuel tanks?

We offer fuel tanks ranging from 50 to 150 gallons for the T300-T450 series. The most common sizes are 60, 80, 100, and 120-gallon tanks. Round tanks typically come in 23" or 25" diameters, while D-shaped tanks are available for specific chassis configurations. Always verify your frame rail spacing and available mounting area before ordering, as the T300 and T450 have different frame widths that affect tank fitment.

Will these fuel tanks fit my specific year and model Kenworth?

Our fuel tanks are designed to fit Kenworth T300 models from 1994-2007 and T450 models from 2008-2019. However, compatibility can vary based on your truck's wheelbase, cab configuration, and existing fuel system setup. Trucks with aftermarket exhaust systems or auxiliary equipment may require different strap lengths or mounting brackets. We recommend checking your current tank's part number or contacting us with your OEM for exact fitment verification.

What material options are available and which is best for my application?

We stock both aluminum and steel fuel tanks. Aluminum tanks are lighter (reducing overall vehicle weight by 50-70 pounds compared to steel), resist corrosion better, and are ideal for trucks operating in northern climates with road salt exposure. Steel tanks cost approximately 30% less than aluminum, offer superior impact resistance, and work well for heavy-duty vocational applications. Both materials meet DOT specifications and include the same warranty coverage.

Can I install these fuel tanks myself or do I need professional installation?

While experienced mechanics can install these tanks, we recommend professional installation due to fuel system safety requirements. Installation typically takes 2-4 hours and requires draining the existing tank, transferring the fuel sending unit, connecting fuel lines with proper DOT-approved fittings, and ensuring proper grounding. You'll need basic hand tools, a floor jack, and potentially new fuel line fittings. Always check local regulations, as some states require certified technicians for fuel system work.

Do these tanks come with mounting hardware and what additional parts might I need?

Our fuel tanks include the tank shell, drain plug, and mounting tabs welded in place. Mounting straps, brackets, sending units, and fuel caps are sold separately to accommodate different configurations. Most installations require new fuel line fittings, vent lines, and potentially a sending unit gasket. For complete replacement, budget for an additional $150-300 in mounting hardware and accessories beyond the tank price.


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