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Kenworth T680 Radiator Tubes, Gaskets & Hoses

Check out our range of Kenworth T680 radiator tubes, gaskets, and hoses at 4 State Trucks. Need heavy-duty, OEM, or durable aftermarket parts? We have reliable solutions to keep your truck running smoothly. Trust us for radiator parts that last and keep your Kenworth T680 performing its best. Shop now for top-quality options.
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  • On Sale
    Limited Quantity Available
    RigMaster Lower Radiator Hose For Caterpillar, Perkins Engines

    RigMaster Lower Radiator Hose For Caterpillar, Perkins Engines

    RIGMASTER

    Now: $7.85
    Was: $25.61
    Lower Radiator Hose - LG5-002v* High Quality Radiator Hose * Lower * Sold Individually * Warranty On Radiator Hoses Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    LG5002
    SKU:
    LG5002
    Truck Class:
    Heavy Duty
    Material Options:
    Rubber
    Position:
    Lower
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    Now: $7.85
    Was: $25.61
    Qty in Cart: 0
    Price:
    Now: $7.85
    Was: $25.61
    Subtotal:
  • On Sale
    Limited Quantity Available
    RigMaster Small Lower Radiator Hose For Kohler Engine

    RigMaster Small Lower Radiator Hose For Kohler Engine

    RIGMASTER

    Now: $3.63
    Was: $9.50
    Kohler Small Lower Radiator Hose - KL5-003* High Quality Radiator Hose * Lower* Small * Sold Individually * Warranty On Radiator Hoses Against Defects In Workmanship & Material From Date Of...
    KL5003
    SKU:
    KL5003
    Truck Class:
    Heavy Duty
    Material Options:
    Rubber
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    Now: $3.63
    Was: $9.50
    Qty in Cart: 0
    Price:
    Now: $3.63
    Was: $9.50
    Subtotal:
  • RigMaster Big Lower Radiator Hose For Kohler Engine

    RigMaster Big Lower Radiator Hose For Kohler Engine

    RIGMASTER

    $21.41
    Kohler Big Lower Radiator Hose - KL5-002* High Quality Radiator Hose * Lower* Big* Sold Individually * Warranty On Radiator Hoses Against Defects In Workmanship & Material From Date Of Purchase***...
    KL5002
    SKU:
    KL5002
    Truck Class:
    Heavy Duty
    Material Options:
    Rubber
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $21.41
    Qty in Cart: 0
    Price:
    $21.41
    Subtotal:
  • On Sale
    Limited Quantity Available
    RigMaster Upper Radiator Hose For Kohler Engine

    RigMaster Upper Radiator Hose For Kohler Engine

    RIGMASTER

    Now: $17.14
    Was: $24.48
    Kohler Top Radiator Hose - KL5-001* High Quality Radiator Hose * Upper * Sold Individually * Warranty On Radiator Hoses Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    KL5001
    SKU:
    KL5001
    Truck Class:
    Heavy Duty
    Material Options:
    Rubber
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    Now: $17.14
    Was: $24.48
    Qty in Cart: 0
    Price:
    Now: $17.14
    Was: $24.48
    Subtotal:
  • EDPM Coolant Branch Hose - 62854 For Continental

    EDPM Coolant Branch Hose - 62854 For Continental

    AFTERMARKET

    $77.99
    Continental Molded Radiator Coolant Hose Replaces OE 62854* High Quality Continental Coolant Branch Hose* EDPM* Dimensions:  - 4 Inch Length  - 8 Inch Width   - 11 Inch Height  - 0.75 Inch Inner...
    29-07020003
    SKU:
    29-07020003
    Material Options:
    Rubber
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $77.99
    Qty in Cart: 0
    Price:
    $77.99
    Subtotal:
  • Poly Reinforced 90 Degree Coolant Elbow 1-1/2 ID X 6-5/8 X 3-1/2 Inch For Kenworth

    Poly Reinforced 90 Degree Coolant Elbow 1-1/2 ID X 6-5/8 X 3-1/2 Inch For Kenworth

    AFTERMARKET

    $78.99
    90 Degree Poly Elbow For Coolant Connector Replaces V50-1041-170090Ensure reliable coolant flow and long-lasting performance with this Poly Reinforced 90 Degree Coolant Elbow for Kenworth trucks...
    02-07020005
    SKU:
    02-07020005
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Style Options:
    Elbow
    Diameter Options:
    1 1/2 Inch
    Make:
    Kenworth
    Product Type:
    Engine Parts
    Degree Options:
    90
    $78.99
    Qty in Cart: 0
    Price:
    $78.99
    Subtotal:
  • Lower Coolant Tube With 3/8 Inch NPT Replaces F66-2555-200 For Kenworth T680, Peterbilt 579

    Lower Coolant Tube With 3/8 Inch NPT Replaces F66-2555-200 For Kenworth T680, Peterbilt 579

    AFTERMARKET

    $222.99
    Kenworth & Peterbilt Lower Radiator PipeEnsure proper coolant flow and engine performance with this Lower Coolant Tube for Kenworth T680 and Peterbilt 579 trucks. Designed to replace F66-2555-200,...
    29-07020007
    SKU:
    29-07020007
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Length Options:
    16 3/4 Inch
    Make:
    Peterbilt
    Make:
    Kenworth
    Product Type:
    Engine Parts
    $222.99
    Qty in Cart: 0
    Price:
    $222.99
    Subtotal:
  • Poly Reinforced Coolant 45 Degree Elbow - 4 Inch ID For Kenworth

    Poly Reinforced Coolant 45 Degree Elbow - 4 Inch ID For Kenworth

    AFTERMARKET

    $80.99
    Kenworth Coolant Poly Reinforced 4 Ply 45 Degree Elbow Replaces D10294494, K342734Protect your truck's engine with this Poly Reinforced Coolant 45 Degree Elbow, built from red silicone with poly...
    02-07020010
    SKU:
    02-07020010
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Kenworth
    Product Type:
    Engine Parts
    $80.99
    Qty in Cart: 0
    Price:
    $80.99
    Subtotal:
  • 3 Ply Silicone Coolant Hose 1.50 ID X 12 Ft

    3 Ply Silicone Coolant Hose 1.50 ID X 12 Ft

    FLEXFAB

    $259.99
    Heavy Duty Silicone Rubber Blue Coolant HoseThis heavy-duty silicone coolant hose has an inside diameter of 1.50 inches and measures 12 feet in length. It meets or exceeds the operating requirements...
    09-070201812
    SKU:
    09-070201812
    Length Options:
    144 Inch
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $259.99
    Qty in Cart: 0
    Price:
    $259.99
    Subtotal:
  • 304 SS Lower Coolant Tube Replaces F66-2883-200 For Peterbilt 579, Kenworth T680

    304 SS Lower Coolant Tube Replaces F66-2883-200 For Peterbilt 579, Kenworth T680

    BESTFIT TRUCK PARTS

    $374.99
    Stainless Steel 2 1/2 Inch Diameter Lower Coolant Tube With One 3/8 Inch Port And 1 Inch Push On Hose Fitting* High Quality Lower Coolant Tube* Made Of Stainless Steel* 2.50 Inch Diameter* Includes: ...
    29-0702121
    SKU:
    29-0702121
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Make:
    Kenworth
    Product Type:
    Engine Parts
    $374.99
    Qty in Cart: 0
    Price:
    $374.99
    Subtotal:
  • On Sale
    FREE SHIPPING OVER $249
    Limited Quantity Available
    BESTfit Stainless Steel Lined Hose Clamp

    BESTfit Stainless Steel Lined Hose Clamp

    BESTFIT TRUCK PARTS

    $1.02 - $4.09
    Secure coolant and air system connections with the reliable BESTfit Stainless Steel Lined Hose Clamp 0.812?1.75 Inch. This high-quality aftermarket hose clamp is made from stainless steel and...
    PPR_202709
    SKU:
    PPR_202709
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $1.02 - $4.09
    Qty in Cart: 0
    Price:
    $1.02 - $4.09
    Subtotal:
  • BESTfit 2.5 Inch Stainless Steel Lower Coolant Tube Replaces F662730 For Peterbilt 579, Kenworth T680 W/ Cummins ISX15

    BESTfit 2.5 Inch Stainless Steel Lower Coolant Tube Replaces F662730 For Peterbilt 579, Kenworth T680 W/ Cummins ISX15

    BESTFIT TRUCK PARTS

    $368.99
    Replacement Lower Coolant Tube 2.5 Inch Stainless Steel W/ 1 Inch Hose Ports* High Quality Lower Coolant Tube * Made Of Stainless Steel * 2.50 Inch * 3/8 Inch Threaded Fitting* 1 Inch Hose Ports*...
    29-070000006
    SKU:
    29-070000006
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Make:
    Kenworth
    Product Type:
    Engine Parts
    $368.99
    Qty in Cart: 0
    Price:
    $368.99
    Subtotal:
  • 2.5 Inch SS Lower Coolant Tube W/ 3/4 Inch Pipe Thread Bung - F66-2574 For Kenworth T680 W/ Cummins ISX

    2.5 Inch SS Lower Coolant Tube W/ 3/4 Inch Pipe Thread Bung - F66-2574 For Kenworth T680 W/ Cummins ISX

    BESTFIT TRUCK PARTS

    $328.99
    2.5 Inch Stainless Steel Lower Coolant Tube W/ 3/4 Inch Pipe Thread Bung Fits Kenworth T680 W/ Cummins ISXThis stainless steel lower coolant tube, measuring 2.5 inches and featuring a 3/4 inch pipe...
    02-070200021
    SKU:
    02-070200021
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Kenworth
    Product Type:
    Engine Parts
    $328.99
    Qty in Cart: 0
    Price:
    $328.99
    Subtotal:
  • FREE SHIPPING
    Peterbilt 579, Kenworth T680, T880 2.5 Inch Stainless Steel Lower Coolant Tube Replaces F66-2767-200

    Peterbilt 579, Kenworth T680, T880 2.5 Inch Stainless Steel Lower Coolant Tube Replaces F66-2767-200

    BESTFIT TRUCK PARTS

    $305.99
    2.5 Inch Stainless Steel Lower Coolant TubeThis 304 stainless steel lower coolant tube replaces OEM number F66-2767-200. It has threaded fittings that are 3/8th of an inch and hose ports that are 1...
    01-070257
    SKU:
    01-070257
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $305.99
    Qty in Cart: 0
    Price:
    $305.99
    Subtotal:
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Adding your products to cart

This category offers high-quality radiator hoses, coolant tubes, and gaskets for the Kenworth T680, featuring trusted brands like BESTfit and RigMaster. Whether replacing a worn part or upgrading to durable silicone hoses, you'll find the right components for efficient engine cooling. With a wide variety of sizes and materials, this selection ensures optimal performance and cooling for your T680, making it essential for maintenance and repair.

Frequently Asked Questions About Kenworth T680 Radiator Tubes, Gaskets & Hoses

Will these radiator tubes, gaskets, and hoses fit my Kenworth T680?

Most parts in this category are designed specifically for the Kenworth T680, but fitment can vary by model year and engine option. Always check the listed specifications and part numbers against your truck's VIN or existing component before ordering to ensure a proper fit.

How do I know if I need a new gasket or hose versus a repair?

Common signs that a radiator tube, gasket, or hose needs replacement include visible coolant leaks, cracking or softening of the hose material, corrosion around gasket seams, or a drop in coolant level without an obvious external leak. If you notice any of these issues, replacing the part rather than attempting a temporary patch will help prevent further cooling system damage.

What material are these radiator tubes and hoses made from, and how durable are they?

Radiator hoses are typically constructed from reinforced rubber compounds designed to handle engine heat and coolant pressure, while tubes and gaskets are made to match OEM specifications for fit and sealing performance. Product listings will note specific materials when available, so review those details to confirm they meet your durability needs.

Can I install these parts myself, or do I need a professional?

Many radiator hoses and gaskets can be replaced by anyone comfortable with basic mechanical work and proper cooling system safety procedures, such as allowing the engine to cool completely before opening the system. However, if you're unsure about torque specs, coolant type, or system bleeding procedures, having a qualified technician handle the installation is recommended to avoid leaks or overheating issues.

Do these parts come with any warranty or return option if they don't fit?

Warranty and return policies vary by manufacturer and specific product, so check the individual listing for details before purchasing. If you receive a part that doesn't match your Kenworth T680's specifications, contact our customer service team promptly to arrange a return or exchange.


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