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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
  • #10 x 1-5/16-12 (#16) Radius O-Ring Fitting Bk FRG495117-BL

    Fragola #10 x 1-5/16-12 (#16) Radius O-Ring Fitting Bk 495117-BL

    FRAGOLA

    $26.99
    When running high-pressure fuel or fluid systems, incompatible port sizes create leaks, pressure loss, and potential engine damage. This Fragola adapter bridges the gap between -10 and -16 AN ports, allowing you to integrate components from different...
    FRG495117-BL
    SKU:
    FRG495117-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.17 LBS
    MFG Part #:
    495117-BL
    $26.99
    Qty in Cart: 0
    Quantity:
    Price:
    $26.99
    Subtotal:
  • #8 x 1-5/16-12 (#16) Radius O-Ring Fitting Bk FRG495116-BL

    Fragola #8 x 1-5/16-12 (#16) Radius O-Ring Fitting Bk 495116-BL

    FRAGOLA

    $23.99
    If you're stepping up your fuel system or hydraulic lines, you need fittings that won't leak under pressure. This Fragola radius O-ring adapter bridges two different AN line sizes with precision-engineered reliability, letting you adapt 8 AN components...
    FRG495116-BL
    SKU:
    FRG495116-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.16 LBS
    MFG Part #:
    495116-BL
    $23.99
    Qty in Cart: 0
    Quantity:
    Price:
    $23.99
    Subtotal:
  • #8 x 1-1/16-12 (#12) Radius O-Ring Fitting Bk FRG495115-BL

    Fragola #8 x 1-1/16-12 (#12) Radius O-Ring Fitting Bk 495115-BL

    FRAGOLA

    $16.99
    When you're running high-pressure fuel or fluid systems, mismatched port sizes can create leaks, pressure drops, and catastrophic failures. This Fragola radius O-ring fitting solves that problem with a clean step-down from #8 to #12 AN, allowing you to...
    FRG495115-BL
    SKU:
    FRG495115-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    MFG Part #:
    495115-BL
    $16.99
    Qty in Cart: 0
    Quantity:
    Price:
    $16.99
    Subtotal:
  • #6 x 1-1/16-12 (#12) Radius O-Ring Fitting Bk FRG495114-BL

    Fragola #6 x 1-1/16-12 (#12) Radius O-Ring Fitting Bk 495114-BL

    FRAGOLA

    $18.99
    This adapter fitting bridges the gap between 6 AN and 12 AN O-ring systems, making it essential for custom fuel, coolant, and hydraulic line configurations where port sizes don't match. The straight design eliminates flow restrictions while the radius...
    FRG495114-BL
    SKU:
    FRG495114-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.14 LBS
    MFG Part #:
    495114-BL
    $18.99
    Qty in Cart: 0
    Quantity:
    Price:
    $18.99
    Subtotal:
  • #6 x 7/8-14 (#10) Radius O-Ring Fitting Black FRG495113-BL

    Fragola #6 x 7/8-14 (#10) Radius O-Ring Fitting Black 495113-BL

    FRAGOLA

    $14.99
    When you're running a high-performance fuel system or hydraulic setup, mismatched AN fittings create leaks, pressure loss, and potential catastrophic failure. This Fragola radius O-ring adapter seamlessly bridges #6 and #10 AN ports, giving you the...
    FRG495113-BL
    SKU:
    FRG495113-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    MFG Part #:
    495113-BL
    $14.99
    Qty in Cart: 0
    Quantity:
    Price:
    $14.99
    Subtotal:
  • #6 X 7/8-14 (#10) Radius O-Ring Fitting FRG495113

    Fragola #6 X 7/8-14 (#10) Radius O-Ring Fitting 495113

    FRAGOLA

    $12.99
    If you're stepping up to larger displacement engines or upgrading your fuel system for forced induction, you need fittings that can handle the flow and pressure without leaking. This Fragola adapter lets you bridge #6 and #10 AN line sizes seamlessly,...
    FRG495113
    SKU:
    FRG495113
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    495113
    $12.99
    Qty in Cart: 0
    Quantity:
    Price:
    $12.99
    Subtotal:
  • #4 x 7/8-14 (#10) Radius O-Ring Fitting Black FRG495112-BL

    Fragola #4 x 7/8-14 (#10) Radius O-Ring Fitting Black 495112-BL

    FRAGOLA

    $13.99
    When you're running high-pressure fuel or coolant lines in a forced induction setup, mismatched port sizes create leaks and potential system failures. This Fragola radius O-ring fitting bridges the gap between #4 AN and #10 AN ports with precision...
    FRG495112-BL
    SKU:
    FRG495112-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.07 LBS
    MFG Part #:
    495112-BL
    $13.99
    Qty in Cart: 0
    Quantity:
    Price:
    $13.99
    Subtotal:
  • #4 x 3/4-16 (#8) Radius O-Ring Fitting Black FRG495111-BL

    Fragola #4 x 3/4-16 (#8) Radius O-Ring Fitting Black 495111-BL

    FRAGOLA

    $11.99
    When you're running high-pressure fuel or coolant lines, mismatched fitting sizes can create leaks that compromise reliability and cost you track time. This Fragola adapter bridges the gap between #4 AN and #8 AN systems, giving you the flexibility to...
    FRG495111-BL
    SKU:
    FRG495111-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.07 LBS
    MFG Part #:
    495111-BL
    $11.99
    Qty in Cart: 0
    Quantity:
    Price:
    $11.99
    Subtotal:
  • #4 x 9/16-18 (#6) Radius O-Ring Fitting Black FRG495110-BL

    Fragola #4 x 9/16-18 (#6) Radius O-Ring Fitting Black 495110-BL

    FRAGOLA

    $10.99
    When you're running high-pressure fuel or coolant lines, mismatched port sizes create weak points that can fail under boost or sustained RPMs. This Fragola adapter bridges the gap between 4 AN and 6 AN systems with a proven radius O-ring design,...
    FRG495110-BL
    SKU:
    FRG495110-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    MFG Part #:
    495110-BL
    $10.99
    Qty in Cart: 0
    Quantity:
    Price:
    $10.99
    Subtotal:
  • #12 x 1-1/16-12 (#12) Radius O-Ring Fitting Bk FRG495109-BL

    Fragola #12 x 1-1/16-12 (#12) Radius O-Ring Fitting Bk 495109-BL

    FRAGOLA

    $23.99
    If you're running high-pressure fuel, oil, or coolant lines through your race engine bay, you need fittings that won't leak under extreme conditions. This Fragola radius O-ring fitting provides a sealed, vibration-resistant connection between two 12 AN...
    FRG495109-BL
    SKU:
    FRG495109-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    MFG Part #:
    495109-BL
    $23.99
    Qty in Cart: 0
    Quantity:
    Price:
    $23.99
    Subtotal:
  • #12 X 1-1/16-12 (#12) Radius O-Ring Fitting FRG495109

    Fragola #12 X 1-1/16-12 (#12) Radius O-Ring Fitting 495109

    FRAGOLA

    $19.99
    If you're running high-pressure fuel, oil, or coolant lines, you need fittings you can trust to seal reliably under extreme conditions. Fragola's #12 radius O-ring fitting delivers the leak-free performance that separates a bulletproof system from one...
    FRG495109
    SKU:
    FRG495109
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    495109
    $19.99
    Qty in Cart: 0
    Quantity:
    Price:
    $19.99
    Subtotal:
  • #12 x 7/8-14 (#10)Radius O-Ring Fitting Black FRG495108-BL

    Fragola #12 x 7/8-14 (#10)Radius O-Ring Fitting Black 495108-BL

    FRAGOLA

    $15.99
    If you're running separate feed lines or connecting different AN port sizes in your fuel, oil, or coolant system, this adapter bridges the gap without compromises. The Fragola #12 x 7/8-14 fitting uses a reliable O-ring seal design that eliminates the...
    FRG495108-BL
    SKU:
    FRG495108-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    495108-BL
    $15.99
    Qty in Cart: 0
    Quantity:
    Price:
    $15.99
    Subtotal:
  • #12 X 7/8-14 (10) Radius O-Ring Fitting FRG495108

    Fragola #12 X 7/8-14 (10) Radius O-Ring Fitting 495108

    FRAGOLA

    $13.99
    If you're running a high-performance fuel or coolant system with mixed AN line sizes, this Fragola adapter fitting is essential for clean, leak-free connections. The O-ring design eliminates the need for secondary sealing tape and provides consistent...
    FRG495108
    SKU:
    FRG495108
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    495108
    $13.99
    Qty in Cart: 0
    Quantity:
    Price:
    $13.99
    Subtotal:
  • #10 x 1-1/16-12 (#12) Radius O-Ring Fitting Bk FRG495107-BL

    Fragola #10 x 1-1/16-12 (#12) Radius O-Ring Fitting Bk 495107-BL

    FRAGOLA

    $22.99
    When you're running high-pressure fuel, coolant, or hydraulic systems, mismatched AN fittings create leak points and compromise reliability. This Fragola adapter bridges the gap between 10 AN and 12 AN O-ring ports with precision-engineered aluminum...
    FRG495107-BL
    SKU:
    FRG495107-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    MFG Part #:
    495107-BL
    $22.99
    Qty in Cart: 0
    Quantity:
    Price:
    $22.99
    Subtotal:
  • #10 X 1-1/16-12 (#12) Radius O-Ring Fitting FRG495107

    Fragola #10 X 1-1/16-12 (#12) Radius O-Ring Fitting 495107

    FRAGOLA

    $22.99
    AN fitting adapters are essential when you need to bridge different port sizes in your fuel, oil, or coolant systems—and this Fragola adapter delivers the precise conversion you need without compromising flow or reliability. The 10 AN to 12 AN step-up...
    FRG495107
    SKU:
    FRG495107
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    MFG Part #:
    495107
    $22.99
    Qty in Cart: 0
    Quantity:
    Price:
    $22.99
    Subtotal:
  • #10 x 7/8-14 (#10)Radius O-Ring Fitting Black FRG495106-BL

    Fragola #10 x 7/8-14 (#10)Radius O-Ring Fitting Black 495106-BL

    FRAGOLA

    $15.99
    If you're building a high-flow fuel, coolant, or brake system, you need fittings you can trust under pressure. This Fragola #10 radius O-ring fitting delivers a leak-free, repeatable connection every time—critical when you're running forced induction or...
    FRG495106-BL
    SKU:
    FRG495106-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    MFG Part #:
    495106-BL
    $15.99
    Qty in Cart: 0
    Quantity:
    Price:
    $15.99
    Subtotal:
  • #10 X 7/8-14 (10) Radius O-Ring Fitting FRG495106

    Fragola #10 X 7/8-14 (10) Radius O-Ring Fitting 495106

    FRAGOLA

    $13.99
    If you're building a fuel system, coolant loop, or any high-pressure application requiring reliable fluid transfer, this Fragola O-ring fitting delivers the leak-free performance you need. The straight-through design eliminates flow restrictions while...
    FRG495106
    SKU:
    FRG495106
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    MFG Part #:
    495106
    $13.99
    Qty in Cart: 0
    Quantity:
    Price:
    $13.99
    Subtotal:
  • #10 x 3/4-16 (#8) Radius O-Ring Fitting Black FRG495105-BL

    Fragola #10 x 3/4-16 (#8) Radius O-Ring Fitting Black 495105-BL

    FRAGOLA

    $19.99
    If you're running a high-performance fuel or coolant system with mixed AN fitting sizes, this adapter eliminates the need for custom fabrication or compromised connections. The Fragola #10 x 3/4-16 Radius O-Ring Fitting delivers reliable, leak-free...
    FRG495105-BL
    SKU:
    FRG495105-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    MFG Part #:
    495105-BL
    $19.99
    Qty in Cart: 0
    Quantity:
    Price:
    $19.99
    Subtotal:
  • #10 X 3/4-16 (#8) Radius O-Ring Fitting FRG495105

    Fragola #10 X 3/4-16 (#8) Radius O-Ring Fitting 495105

    FRAGOLA

    $19.99
    When you're running high-flow fuel or coolant systems, AN line compatibility becomes critical—mismatched fittings create leaks, pressure loss, and reliability issues on the track or street. The Fragola #10 X 3/4-16 (#8) Radius O-Ring Fitting provides a...
    FRG495105
    SKU:
    FRG495105
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    MFG Part #:
    495105
    Qty in Cart: 0
    Quantity:
    Price:
    $19.99
    Subtotal:
  • #8 x 7/8-14 (#10) Radius O-Ring Fitting Black FRG495104-BL

    Fragola #8 x 7/8-14 (#10) Radius O-Ring Fitting Black 495104-BL

    FRAGOLA

    $15.99
    When you're running high-pressure fuel or coolant lines, mismatched fittings create leak points that compromise performance and reliability. This Fragola adapter bridges the gap between 8 AN and 10 AN systems with precision-engineered construction,...
    FRG495104-BL
    SKU:
    FRG495104-BL
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    MFG Part #:
    495104-BL
    $15.99
    Qty in Cart: 0
    Quantity:
    Price:
    $15.99
    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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