null

International WorkStar Fender Extensions

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • FREE SHIPPING OVER $249
    3/4 X 2.5 Inch Long Bolt For Fender Stub

    3/4 X 2.5 Inch Long Bolt For Fender Stub

    AFTERMARKET

    $8.31
    Fine Thread Hex Head BoltThis bold is used for fender stud mounts. It is 3/4 inches in diameter and 2.5 inches long.* High Quality Bolt* Made of Medium Carbon Alloy Steel* For Fender Stud Mounts*...
    118992
    SKU:
    118992
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Rear Fenders
    Ready To Ship:
    Yes
    $8.31
    Qty in Cart: 0
    Price:
    $8.31
    Subtotal:
  • Stainless Steel Small WTI Fender Trim

    Stainless Steel Small WTI Fender Trim

    PHOENIX DESIGN

    $46.68
    Stainless Steel Small WTI Fender TrimEnhance your vehicle's look with our SS Small WTI Fender Trim, crafted from durable stainless steel. This universal trim piece is sold individually and fits a...
    09-127000001
    SKU:
    09-127000001
    Location:
    Made In USA
    Truck Class:
    Universal
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Hood Parts & Acc.
    $46.68
    Qty in Cart: 0
    Price:
    $46.68
    Subtotal:
  • Stainless Steel Large WTI Fender Trim

    Stainless Steel Large WTI Fender Trim

    PHOENIX DESIGN

    $74.99
    Stainless Steel Large WTI Fender TrimUpgrade your ride with our Stainless Steel Large WTI Fender Trim. This sturdy trim adds a sleek look while protecting your vehicle. Easy to install and keep...
    09-127000000
    SKU:
    09-127000000
    Truck Class:
    Universal
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Hood Parts & Acc.
    $74.99
    Qty in Cart: 0
    Price:
    $74.99
    Subtotal:
  • 3/4 X 4 Inch Quarter Fender Post Bolt

    3/4 X 4 Inch Quarter Fender Post Bolt

    AFTERMARKET

    $17.16
    Coarse Thread Hex Head Bolt Kit* High Quality Bolt Kit* For A Pair Of Quarter Fender Posts* Kit Includes:  - (2) Bolts  - (4) Washers  - (2) Nuts* Dimensions:  - 4 Inch Length  - 3/4 Inch - 10...
    09-11K1100
    SKU:
    09-11K1100
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Rear Fenders
    Diameter Options:
    3/4 Inch
    Length Options:
    4 Inch
    Material Options:
    Steel
    Position:
    Kit Full
    Style Options:
    Quarter Fender
    $17.16
    Qty in Cart: 0
    Price:
    $17.16
    Subtotal:
  • FREE SHIPPING OVER $249
    6 To 8 Inch Stainless Steel Adjustable Rear Fender Brackets

    6 To 8 Inch Stainless Steel Adjustable Rear Fender Brackets

    TRUX ACCESSORIES

    $161.99
    6 To 8 Inch Adjustable Rear Fender BracketsMake Mounting Your Rear Fender Easy With This Pair Of Adjustable Stainless Steel Fender Brackets. They Adjust Up To 6 To 8 Inches To Ensure A Perfect Fit...
    09-11201
    SKU:
    09-11201
    Truck Class:
    Universal
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Rear Fenders
    Ready To Ship:
    Yes
    $161.99
    Qty in Cart: 0
    Price:
    $161.99
    Subtotal:
  • FREE SHIPPING OVER $249
    2 Inch Black Plug For Domar Fendor Bracket

    2 Inch Black Plug For Domar Fendor Bracket

    DOMAR

    $5.24
    Fender Bracket Plug For 2 Inch Diameter PipeMissing the end to your fender brackets? This single black plug fits a 2 inch round fender bracket to give the end a finished look.* High Quality Fender...
    09-11187
    SKU:
    09-11187
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Rear Fenders
    Diameter Options:
    2 Inch
    Color:
    Black
    Ready To Ship:
    Yes
    $5.24
    Qty in Cart: 0
    Price:
    $5.24
    Subtotal:
  • FREE SHIPPING OVER $249
    Hogebuilt Mounting Bracket Hardware Kit For Brackets 09-11161, 09-11163, 09-11107

    Hogebuilt Mounting Bracket Hardware Kit For Brackets 09-11161, 09-11163, 09-11107

    HOGEBUILT FENDERS

    $54.99
    Mounting Bracket Hardware Kit W/ 3 Plates, 6 Bolts, 6 WashersThis Hogebuilt mounting bracket hardware kit includes the straps and bolts you need for installing one Shape Mount Bracket. Purchase a kit...
    09-11185
    SKU:
    09-11185
    Location:
    Made In USA
    Truck Class:
    Universal
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Rear Fenders
    Ready To Ship:
    Yes
    $54.99
    Qty in Cart: 0
    Price:
    $54.99
    Subtotal:
  • Minimizer Fender Bracket Kit For 13K Pound Steerable Lift Axles

    Minimizer Fender Bracket Kit For 13K Pound Steerable Lift Axles

    MINIMIZER

    $1,011.99
    Minimizer Fender Bracket Kit For Steerable Lift AxlesAt 4 State Trucks we offer Minimizer fender bracket kits for steerable lift axles. This bracket kit is ideal for 13K pound lift axles, includes...
    09-11180
    SKU:
    09-11180
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Rear Fenders
    $1,011.99
    Qty in Cart: 0
    Price:
    $1,011.99
    Subtotal:
  • Fender Bracket Kit For 20K Pound Steerable Lift Axles By Minimizer

    Fender Bracket Kit For 20K Pound Steerable Lift Axles By Minimizer

    MINIMIZER

    $819.99
    Minimizer Fender Bracket Kit For Steerable Lift AxlesWe offer this high-quality aftermarket Minimizer fender bracket kit for steerable lift axles. It is ideal for 20K pound lift axles and includes...
    09-11179
    SKU:
    09-11179
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Rear Fenders
    Ready To Ship:
    Yes
    $819.99
    Qty in Cart: 0
    Price:
    $819.99
    Subtotal:
  • Minimizer Black End Cap For Fender Brackets

    Minimizer Black End Cap For Fender Brackets

    MINIMIZER

    $4.40
    End Cap For Fender Brackets* High Quality End Cap* Black* For Fender Brackets* Sold Individually* Warranty On End Caps Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    09-11178
    SKU:
    09-11178
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Rear Fenders
    $4.40
    Qty in Cart: 0
    Price:
    $4.40
    Subtotal:
  • Steering Lift Axle Fender Mounting Kit

    Steering Lift Axle Fender Mounting Kit

    MINIMIZER

    $671.99
    Mounting Kit For Steering Lift Axle Fenders* Made Of High Quality Plastic* For Single Radius Fender* Sold As Kit* Warranty On Fender Mounting Kit Against Defects In Workmanship & Material From Date...
    09-11177
    SKU:
    09-11177
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Rear Fenders
    $671.99
    Qty in Cart: 0
    Price:
    $671.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Stainless Steel Quarter Fender Clamp W/ Bolt By Hogebuilt

    Stainless Steel Quarter Fender Clamp W/ Bolt By Hogebuilt

    HOGEBUILT FENDERS

    $17.61
    11 Gauge Matte Finish SS Quarter Fender Clamp W/ BoltAre you looking for a secure way to clamp your stainless steel quarter fender tube to the post mount? 4 State Trucks is proud to offer this...
    09-11167
    SKU:
    09-11167
    Truck Class:
    Universal
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Rear Fenders
    Ready To Ship:
    Yes
    $17.61
    Qty in Cart: 0
    Price:
    $17.61
    Subtotal:
  • FREE SHIPPING OVER $249
    26.5 Inch Composite Tapered Fender Bracket

    26.5 Inch Composite Tapered Fender Bracket

    MINIMIZER

    $58.99
    Composite Tapered BracketMade for fast and hassle free mounting Minimizer fenders, this bracket is 26.5 inches long. Its tapered form helps ensure a proper fit.* High Quality Fender Bracket*...
    09-11166
    SKU:
    09-11166
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Rear Fenders
    Location:
    Made In USA
    Length Options:
    26 Inch
    Style Options:
    Tapered
    Ready To Ship:
    Yes
    $58.99
    Qty in Cart: 0
    Price:
    $58.99
    Subtotal:
  • Super Single Full Radius Fender Mounting Kit By TPHD

    Super Single Full Radius Fender Mounting Kit By TPHD

    TPHD

    $439.99
    Super Single Radius Fender Bracket Kit For Single Radius Fenders* High Quality Fender Mounting Kit* Kit Includes: - 4 Post Mount Brackets - 4 Stainless Steel Shape Mount Brackets - 4 Stainless Steel...
    09-11154
    SKU:
    09-11154
    Truck Class:
    Universal
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Type Options:
    Full Radius
    Product Type:
    Rear Fenders
    Ready To Ship:
    Yes
    $439.99
    Qty in Cart: 0
    Price:
    $439.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Plastic Adjustable Fender Mount Bracket W/ 48MM Hinge For Full Radius Fender

    Plastic Adjustable Fender Mount Bracket W/ 48MM Hinge For Full Radius Fender

    DOMAR

    $27.29
    Easy Mount Adjustable Plastic Fender Mounting BracketMake mounting a plastic full radius fenders easier with this adjustable hanger bracket featuring a 48 mm hinge. This is bracket is sold...
    09-11149
    SKU:
    09-11149
    Truck Class:
    Universal
    Color:
    Black
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Rear Fenders
    Ready To Ship:
    Yes
    Type Options:
    Standard Mount
    Style Options:
    Full Radius
    $27.29
    Qty in Cart: 0
    Price:
    $27.29
    Subtotal:
  • On Sale
    FREE SHIPPING OVER $249
    Limited Quantity Available
    Mild Offset Curve Fender Bracket For Full Radius Fenders

    Mild Offset Curve Fender Bracket For Full Radius Fenders

    DOMAR

    Now: $14.93
    Was: $38.10
    Full Radius Fender BracketThis black fender bracket features a mild offset curve with a single bolt mount and a 3 bolt flange. It can be used for either side of full radius fenders.* High Quality...
    09-11148
    SKU:
    09-11148
    Truck Class:
    Universal
    Color:
    Black
    Material Options:
    Steel
    Make:
    Universal Items
    Type Options:
    Full Radius
    Product Type:
    Rear Fenders
    Ready To Ship:
    Yes
    Now: $14.93
    Was: $38.10
    Qty in Cart: 0
    Price:
    Now: $14.93
    Was: $38.10
    Subtotal:
  • TPHD SS Super Single Half Fender Mounting Kit

    TPHD SS Super Single Half Fender Mounting Kit

    TPHD

    $355.99
    TPHD Stainless Steel Super Single Half Fender Mounting Kit* Kit Includes:  2 Post Mount Brackets  2 Stainless Steel Shape Mount Brackets  2 Stainless Steel Mounting Clamps   2 Rear Fender Brackets*...
    09-11146
    SKU:
    09-11146
    Truck Class:
    Universal
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Type Options:
    Half
    Product Type:
    Rear Fenders
    Ready To Ship:
    Yes
    $355.99
    Qty in Cart: 0
    Price:
    $355.99
    Subtotal:
  • FREE SHIPPING OVER $249
    CSM Aluminum Fender Reinforcement

    CSM Aluminum Fender Reinforcement

    CHROME SHOP MAFIA

    $198.99
    Fender Reinforcements For T1HFS80C Fender By Chrome Shop MafiaReinforce your truck's fenders with the CSM Aluminum Fender Reinforcement by Chrome Shop Mafia. Designed specifically for T1HFS80C...
    09-11135
    SKU:
    09-11135
    Truck Class:
    Universal
    Location:
    Made In USA
    Material Options:
    Aluminum
    Make:
    Universal Items
    Product Type:
    Rear Fenders
    Position:
    Lower
    Ready To Ship:
    Yes
    $198.99
    Qty in Cart: 0
    Price:
    $198.99
    Subtotal:
  • FREE SHIPPING OVER $249
    8 Inch 4 Bolt Fender Mount Post

    8 Inch 4 Bolt Fender Mount Post

    UNITED PACIFIC

    $16.75
    Quarter Fender Mounting Post* High Quality Mounting Post* 8 Inch Length* 4 - Bolt Mount* Mounting Post Only, Mounting Hardware Not Included* Sold Individually* Warranty On Mounting Posts Against...
    09-11119
    SKU:
    09-11119
    Color:
    Black
    Truck Class:
    Universal
    Length Options:
    8 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    Type Options:
    Quarter
    Product Type:
    Rear Fenders
    $16.75
    Qty in Cart: 0
    Price:
    $16.75
    Subtotal:
  • FREE SHIPPING OVER $249
    Black Steel Curved Fender Bracket For Poly Fenders

    Black Steel Curved Fender Bracket For Poly Fenders

    DOMAR

    $55.99
    Black Curved Fender BracketSecurely mount a poly fenders with ease using this black steel curved bracket. Just grab two plastic fender mounting clamps per a bracket and you are all set for a...
    09-11118
    SKU:
    09-11118
    Color:
    Black
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Rear Fenders
    Ready To Ship:
    Yes
    $55.99
    Qty in Cart: 0
    Price:
    $55.99
    Subtotal:
  • Total: items /

Adding your products to cart

Enhance your International WorkStar with high-quality fender extensions. This category offers stylish chrome accents and durable plastic extensions that protect your truck from road debris. Customize your rig's look while keeping it in top condition. Browse the selection to find the perfect fender extensions for your WorkStar and boost style and functionality.

Frequently Asked Questions About International WorkStar Fender Extensions

What are fender extensions used for on an International WorkStar?

Fender extensions are add-on panels that widen or extend the coverage of your existing fenders. They help block additional road spray, mud, and debris from being thrown onto the cab, trailer, or nearby vehicles, especially when running wider tires or after-market wheels that extend beyond the stock fender line.

Will fender extensions fit my specific WorkStar model year?

Fender extension fit can vary depending on the model year of your WorkStar and the style of fender currently installed on the truck. Before ordering, check the listed year range and fender style compatibility on the product page, and compare it against your truck's existing fender setup to confirm a proper match.

What materials are these fender extensions made from, and how do they hold up?

Fender extensions are commonly available in materials such as poly, rubber, or metal, each offering different levels of flexibility and durability. Poly and rubber options tend to resist cracking from road debris and flex on impact, while metal versions offer a more rigid, OEM-style look. Choosing the right material often comes down to the balance of durability and appearance you're looking for.

Are these extensions easy to install, and do I need special tools?

Most fender extensions are designed to bolt on or clamp onto your existing fender using basic hand tools such as a drill and wrenches. Installation typically involves aligning the extension with the existing fender edge, drilling mounting holes if they are not pre-drilled, and securing it with the provided hardware. Always review the specific installation instructions included with your extension before starting.

Do fender extensions come pre-drilled, or will I need to drill mounting holes myself?

This depends on the specific product. Some fender extensions come with pre-drilled mounting holes designed to line up with common WorkStar fender configurations, while others are sold undrilled to allow for a custom fit. Check the product description for details on drilling requirements before you buy so you know what tools and prep work to expect.


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