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Fittings and Plugs

Fittings and Plugs

Fittings and Plugs

Circle Track AN/NPT Fittings & Plugs at JJ Motorsports

Achieve precision and reliability with fittings and plugs designed for high-pressure applications from JJ Motorsports. These components are essential for creating secure, leak-free connections in fuel, oil, and fluid lines, keeping your circle track car in peak condition. Integrate them with other specialized high-performance components to elevate your setup.

Shop trusted brands like Fragola for push-lock fittings, Aeroquip for bulkhead options, JJ Motorsports for custom kits, and Allstar Performance for versatile solutions. Explore related categories such as Hose Ends for secure connections or Cap and Plug Fittings for sealing needs.

Top Circle Track AN/NPT Fittings & Plugs

Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • #8 x #10 Female Swivel Connector Black FRG496109-BL

    Fragola #8 x #10 Female Swivel Connector Black 496109-BL

    FRAGOLA

    $10.99
    Fluid line adapter mismatches can compromise system integrity and create costly leaks under high-pressure conditions. This Fragola swivel connector provides a reliable, precise transition between #8 and #10 AN fittings, essential for custom fuel,...
    FRG496109-BL
    SKU:
    FRG496109-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    496109-BL
    $10.99
    Qty in Cart: 0
    Quantity:
    Price:
    $10.99
    Subtotal:
  • #8 x #10 Female Swivel Connector FRG496109

    Fragola #8 x #10 Female Swivel Connector 496109

    FRAGOLA

    $9.49
    When you're running custom fuel, coolant, or hydraulic lines, adapter fittings are critical—mismatched port sizes create leaks, pressure drops, and catastrophic failures. The Fragola #8 x #10 Female Swivel Connector solves this problem with a...
    FRG496109
    SKU:
    FRG496109
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    MFG Part #:
    496109
    $9.49
    Qty in Cart: 0
    Quantity:
    Price:
    $9.49
    Subtotal:
  • #8 Female Swivel Connect Black FRG496108-BL

    Fragola #8 Female Swivel Connect Black 496108-BL

    FRAGOLA

    $10.99
    When you're running high-flow fuel or coolant lines, you need fittings that won't leak under pressure. The Fragola #8 Female Swivel Connect delivers reliable, leak-free connections with a design that accommodates vibration and thermal expansion—critical...
    FRG496108-BL
    SKU:
    FRG496108-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    MFG Part #:
    496108-BL
    $10.99
    Qty in Cart: 0
    Quantity:
    Price:
    $10.99
    Subtotal:
  • #8 Female Swivel Connector FRG496108

    Fragola #8 Female Swivel Connector 496108

    FRAGOLA

    $8.49
    When you're running high-pressure fuel or coolant lines, connection integrity is non-negotiable. The Fragola #8 Female Swivel Connector eliminates guesswork with a precision-engineered adapter that accommodates vibration and thermal expansion without...
    FRG496108
    SKU:
    FRG496108
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    MFG Part #:
    496108
    $8.49
    Qty in Cart: 0
    Quantity:
    Price:
    $8.49
    Subtotal:
  • #6 x #8 Female Swivel Connector Black FRG496107-BL

    Fragola #6 x #8 Female Swivel Connector Black 496107-BL

    FRAGOLA

    $11.99
    When you're building or upgrading a high-performance fuel or coolant system, connector compatibility across different AN line sizes is critical—mismatched fittings lead to leaks, pressure loss, and potential catastrophic failures. The Fragola #6 x #8...
    FRG496107-BL
    SKU:
    FRG496107-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    496107-BL
    $11.99
    Qty in Cart: 0
    Quantity:
    Price:
    $11.99
    Subtotal:
  • #6 x #8 Female Swivel Connector FRG496107

    Fragola #6 x #8 Female Swivel Connector 496107

    FRAGOLA

    $8.49
    When you're running high-flow fuel or coolant systems, line compatibility matters. This Fragola swivel connector bridges the gap between #6 and #8 AN fittings, eliminating the need for custom fabrication and ensuring leak-free connections under pressure...
    FRG496107
    SKU:
    FRG496107
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    MFG Part #:
    496107
    $8.49
    Qty in Cart: 0
    Quantity:
    Price:
    $8.49
    Subtotal:
  • #6 Female Swivel Connect Black FRG496106-BL

    Fragola #6 Female Swivel Connect Black 496106-BL

    FRAGOLA

    $9.99
    When you're building a high-performance fuel system, hose routing flexibility is critical—and this Fragola swivel connector eliminates the guesswork. By allowing 360-degree articulation at both connection points, you can run clean, efficient lines...
    FRG496106-BL
    SKU:
    FRG496106-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    496106-BL
    $9.99
    Qty in Cart: 0
    Quantity:
    Price:
    $9.99
    Subtotal:
  • #6 Female Swivel Connect FRG496106

    Fragola #6 Female Swivel Connect 496106

    FRAGOLA

    $8.49
    When you're building or modifying a fuel or fluid system, every connection point matters. The Fragola #6 Female Swivel Connect ensures a leak-free, secure fit while allowing you to adjust your line angles without twisting the fitting itself—critical for...
    FRG496106
    SKU:
    FRG496106
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    496106
    $8.49
    Qty in Cart: 0
    Quantity:
    Price:
    $8.49
    Subtotal:
  • #4 Female Swivel Connect Black FRG496104-BL

    Fragola #4 Female Swivel Connect Black 496104-BL

    FRAGOLA

    $9.99
    A quality swivel fitting is essential for any high-performance fuel or coolant system where vibration and thermal expansion demand flexibility without leaks. This Fragola adapter provides a direct female-to-female connection with 360-degree swivel...
    FRG496104-BL
    SKU:
    FRG496104-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    496104-BL
    $9.99
    Qty in Cart: 0
    Quantity:
    Price:
    $9.99
    Subtotal:
  • #4 Female Swivel Connect FRG496104

    Fragola #4 Female Swivel Connect 496104

    FRAGOLA

    $9.49
    When you're running high-pressure fuel or coolant lines in a performance build, connection reliability isn't negotiable. The Fragola #4 Female Swivel Connect eliminates the guesswork by providing a precision-engineered adapter that maintains secure,...
    FRG496104
    SKU:
    FRG496104
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    496104
    $9.49
    Qty in Cart: 0
    Quantity:
    Price:
    $9.49
    Subtotal:
  • #3 Female Swivel Connect Black FRG496103-BL

    Fragola #3 Female Swivel Connect Black 496103-BL

    FRAGOLA

    $14.99
    When you're building or maintaining a high-performance fuel or coolant system, reliable fittings are non-negotiable. This Fragola #3 Female Swivel Connect delivers the adaptability and durability you need for custom plumbing layouts, allowing you to...
    FRG496103-BL
    SKU:
    FRG496103-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    496103-BL
    $14.99
    Qty in Cart: 0
    Quantity:
    Price:
    $14.99
    Subtotal:
  • #3 Female Swivel Connect FRG496103

    Fragola #3 Female Swivel Connect 496103

    FRAGOLA

    $7.49
    Fragola's #3 Female Swivel Connect is an essential adapter for building clean, reliable fluid line systems in high-performance applications. The swivel design eliminates stress on connected fittings during assembly and vibration, reducing the risk of...
    FRG496103
    SKU:
    FRG496103
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    MFG Part #:
    496103
    $7.49
    Qty in Cart: 0
    Quantity:
    Price:
    $7.49
    Subtotal:
  • #3 x 3/8-24 ORB Fitting Black FRG495127-BL

    Fragola #3 x 3/8-24 ORB Fitting Black 495127-BL

    FRAGOLA

    $14.99
    If you're building a custom fuel system or upgrading your hydraulic lines, you need fittings you can trust under pressure. The Fragola #3 x 3/8-24 ORB fitting delivers leak-free, repeatable connections that won't fail when it matters most. Whether you're...
    FRG495127-BL
    SKU:
    FRG495127-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    MFG Part #:
    495127-BL
    $14.99
    Qty in Cart: 0
    Quantity:
    Price:
    $14.99
    Subtotal:
  • #4 x 7/16-20 (#4) Radius O-Ring Fitting Black FRG495125-BL

    Fragola #4 x 7/16-20 (#4) Radius O-Ring Fitting Black 495125-BL

    FRAGOLA

    $9.99
    A reliable O-ring fitting is the foundation of any leak-free fuel, oil, or coolant system—especially in high-performance applications where pressure spikes and vibration are constant. This Fragola straight adapter maintains a secure, repeatable seal...
    FRG495125-BL
    SKU:
    FRG495125-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    495125-BL
    $9.99
    Qty in Cart: 0
    Quantity:
    Price:
    $9.99
    Subtotal:
  • #4 x 3/8-24 (#3) Radius O-Ring Fitting Black FRG495124-BL

    Fragola #4 x 3/8-24 (#3) Radius O-Ring Fitting Black 495124-BL

    FRAGOLA

    $14.99
    When you're building or upgrading a high-performance fuel, coolant, or brake system, mismatched AN fittings create weak points that can lead to leaks or catastrophic failure under pressure. This Fragola #4 x 3/8-24 adapter bridges the gap between larger...
    FRG495124-BL
    SKU:
    FRG495124-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    495124-BL
    $14.99
    Qty in Cart: 0
    Quantity:
    Price:
    $14.99
    Subtotal:
  • #20 x 1-5/16-12 (#16) Radius O-Ring Fitting Bk FRG495123-BL

    Fragola #20 x 1-5/16-12 (#16) Radius O-Ring Fitting Bk 495123-BL

    FRAGOLA

    $24.99
    If you're running a high-performance fuel system, hydraulic setup, or forced induction application, you need fittings that won't leak under pressure. This Fragola #20 x 1-5/16-12 radius O-ring fitting delivers the reliability and precision fit that...
    FRG495123-BL
    SKU:
    FRG495123-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.29 LBS
    MFG Part #:
    495123-BL
    $24.99
    Qty in Cart: 0
    Quantity:
    Price:
    $24.99
    Subtotal:
  • #12 x 3/4-16 (#8) Radius O-Ring Fitting Black FRG495122-BL

    Fragola #12 x 3/4-16 (#8) Radius O-Ring Fitting Black 495122-BL

    FRAGOLA

    $19.99
    When you're running high-flow fuel systems, coolant circuits, or hydraulic lines, port mismatches create unnecessary complications. This Fragola radius O-ring fitting seamlessly adapts #12 AN (12 AN) male ports to #8 AN (8 AN) male connections,...
    FRG495122-BL
    SKU:
    FRG495122-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    495122-BL
    $19.99
    Qty in Cart: 0
    Quantity:
    Price:
    $19.99
    Subtotal:
  • #16 x 1-1/16-12 (#12) Radius O-Ring Fitting Bk FRG495120-BL

    Fragola #16 x 1-1/16-12 (#12) Radius O-Ring Fitting Bk 495120-BL

    FRAGOLA

    $19.99
    When you're running high-pressure fuel or fluid systems, mismatched port sizes create unnecessary complications and potential leak points. This Fragola adapter fitting solves that problem with a direct, no-nonsense solution that lets you confidently step...
    FRG495120-BL
    SKU:
    FRG495120-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.18 LBS
    MFG Part #:
    495120-BL
    $19.99
    Qty in Cart: 0
    Quantity:
    Price:
    $19.99
    Subtotal:
  • #16 x 1-5/16-12 (#16) Radius O-Ring Fitting Bk FRG495119-BL

    Fragola #16 x 1-5/16-12 (#16) Radius O-Ring Fitting Bk 495119-BL

    FRAGOLA

    $27.99
    If you're running high-pressure fuel or coolant lines in your race engine bay, reliable fittings are non-negotiable—a single leak can cost you a race day or worse. This Fragola #16 radius O-ring fitting delivers proven durability with a straightforward...
    FRG495119-BL
    SKU:
    FRG495119-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    MFG Part #:
    495119-BL
    $27.99
    Qty in Cart: 0
    Quantity:
    Price:
    $27.99
    Subtotal:
  • #12 x 1-5/16-12 (#16) Radius O-Ring Fitting Bk FRG495118-BL

    Fragola #12 x 1-5/16-12 (#16) Radius O-Ring Fitting Bk 495118-BL

    FRAGOLA

    $30.99
    If you're running a high-performance fuel or coolant system, mismatched port sizes create unnecessary complications and potential leak points. This Fragola radius O-ring fitting seamlessly adapts your 12 AN male line to a 16 AN male port, eliminating...
    FRG495118-BL
    SKU:
    FRG495118-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.18 LBS
    MFG Part #:
    495118-BL
    $30.99
    Qty in Cart: 0
    Quantity:
    Price:
    $30.99
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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