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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
  • Adapt. #12 Flare X 3/4np  XRP981612

    XRP Adapt. #12 Flare X 3/4np XRP981612

    XRP-XTREME RACING PROD.

    $12.99
    If you're running a high-performance fuel system or custom cooling setup, you need reliable adapters that won't compromise flow or safety. This XRP straight adapter bridges -12 AN and 3/4" NPT connections with precision-engineered aluminum construction,...
    XRP981612
    SKU:
    XRP981612
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    MFG Part #:
    981612
    $12.99
    Qty in Cart: 0
    Quantity:
    Price:
    $12.99
    Subtotal:
  • Adapt. #10 Flare X 3/8np Black XRP981611BB

    XRP Adapt. #10 Flare X 3/8np Black XRP981611BB

    XRP-XTREME RACING PROD.

    $8.69
    When you're building custom fuel, coolant, or brake systems, reliable adapters are non-negotiable—mismatched fittings lead to leaks, pressure loss, and failed runs. This XRP adapter bridges the gap between modern AN fittings and legacy NPT ports, giving...
    XRP981611BB
    SKU:
    XRP981611BB
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    MFG Part #:
    981611BB
    $8.69
    Qty in Cart: 0
    Quantity:
    Price:
    $8.69
    Subtotal:
  • Adapt. #10 Flare X 3/8np  XRP981611

    XRP Adapt. #10 Flare X 3/8np XRP981611

    XRP-XTREME RACING PROD.

    $8.69
    If you're running modern -10 AN hose lines into an engine bay with NPT port fittings, this XRP adapter bridges that gap with zero compromise. The straight configuration eliminates unnecessary bends in your fuel, oil, or coolant system, reducing...
    XRP981611
    SKU:
    XRP981611
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    MFG Part #:
    981611
    $8.69
    Qty in Cart: 0
    Quantity:
    Price:
    $8.69
    Subtotal:
  • Adapt. #10 Flare X 1/2np Black XRP981610BB

    XRP Adapt. #10 Flare X 1/2np Black XRP981610BB

    XRP-XTREME RACING PROD.

    $7.89
    If you're running a custom fuel, oil, or coolant system, you need reliable adapters that won't leak under pressure. This XRP straight adapter bridges the gap between modern -10 AN fittings and legacy 1/2" NPT ports, giving you the flexibility to...
    XRP981610BB
    SKU:
    XRP981610BB
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    MFG Part #:
    981610BB
    $7.89
    Qty in Cart: 0
    Quantity:
    Price:
    $7.89
    Subtotal:
  • Adapt. #10 Flare X 1/2np  XRP981610

    XRP Adapt. #10 Flare X 1/2np XRP981610

    XRP-XTREME RACING PROD.

    $7.89
    When you're routing high-pressure lines through your engine bay, adapter fittings are the backbone of a reliable system—and this XRP adapter delivers the precision fit you need without compromise. The 10 AN to 1/2" NPT male configuration gives you...
    XRP981610
    SKU:
    XRP981610
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    MFG Part #:
    981610
    $7.89
    Qty in Cart: 0
    Quantity:
    Price:
    $7.89
    Subtotal:
  • Adapter #8 Flare X 3/4np  XRP981609

    XRP Adapter #8 Flare X 3/4np XRP981609

    XRP-XTREME RACING PROD.

    $12.99
    When you're building a custom fuel system or integrating aftermarket hydraulic components, you need fittings that won't compromise your setup with leaks or incompatible connections. This XRP adapter bridges the gap between AN and NPT standards, giving...
    XRP981609
    SKU:
    XRP981609
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    MFG Part #:
    981609
    $12.99
    Qty in Cart: 0
    Quantity:
    Price:
    $12.99
    Subtotal:
  • Adapter #8 Flare X 3/8np Black XRP981608BB

    XRP Adapter #8 Flare X 3/8np Black XRP981608BB

    XRP-XTREME RACING PROD.

    $5.59
    When you're running a high-performance fuel or coolant system, mismatched fittings create leaks, pressure drops, and downtime you can't afford. The XRP Adapter #8 Flare X 3/8np gives you a direct, leak-free connection between AN-style hard lines and NPT...
    XRP981608BB
    SKU:
    XRP981608BB
    Availability:
    Ships Same Business Day
    Weight:
    0.07 LBS
    MFG Part #:
    981608BB
    $5.59
    Qty in Cart: 0
    Quantity:
    Price:
    $5.59
    Subtotal:
  • Adapter #8 Flare X 3/8np  XRP981608

    XRP Adapter #8 Flare X 3/8np XRP981608

    XRP-XTREME RACING PROD.

    $5.59
    This straight adapter bridges the gap between -8 AN fittings and 3/8" NPT ports, making it essential for custom fuel systems, oil lines, and coolant circuits where different thread standards meet. The blue anodized aluminum construction resists corrosion...
    XRP981608
    SKU:
    XRP981608
    Availability:
    Ships Same Business Day
    Weight:
    0.07 LBS
    MFG Part #:
    981608
    $5.59
    Qty in Cart: 0
    Quantity:
    Price:
    $5.59
    Subtotal:
  • Adapter #8 Flare X 1/4np Black XRP981607BB

    XRP Adapter #8 Flare X 1/4np Black XRP981607BB

    XRP-XTREME RACING PROD.

    $5.59
    When you're running a high-performance fuel, oil, or coolant system, mismatched fittings create pressure leaks and reliability issues that cost you track time. This XRP straight adapter bridges the gap between AN and NPT standards, giving you a clean,...
    XRP981607BB
    SKU:
    XRP981607BB
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    MFG Part #:
    981607BB
    $5.59
    Qty in Cart: 0
    Quantity:
    Price:
    $5.59
    Subtotal:
  • Adapter #8 Flare X 1/4np  XRP981607

    XRP Adapter #8 Flare X 1/4np XRP981607

    XRP-XTREME RACING PROD.

    $5.59
    When you're running a high-performance fuel system or custom cooling setup, you need fittings that won't leak under pressure. This XRP adapter bridges your -8 AN hard lines to standard 1/4" NPT ports with precision engineering and reliability. The blue...
    XRP981607
    SKU:
    XRP981607
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    MFG Part #:
    981607
    $5.59
    Qty in Cart: 0
    Quantity:
    Price:
    $5.59
    Subtotal:
  • Adapter #6 Flare X 1/4np Black XRP981606BB

    XRP Adapter #6 Flare X 1/4np Black XRP981606BB

    XRP-XTREME RACING PROD.

    $4.49
    If you're running a custom cooling system, fuel line setup, or any pressurized circuit that bridges AN fittings to NPT ports, this adapter eliminates the guesswork and potential leak points of improvised solutions. The XRP #6 Flare to 1/4" NPT adapter is...
    XRP981606BB
    SKU:
    XRP981606BB
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    MFG Part #:
    981606BB
    $4.49
    Qty in Cart: 0
    Quantity:
    Price:
    $4.49
    Subtotal:
  • Adapter #6 Flare X 1/4np  XRP981606

    XRP Adapter #6 Flare X 1/4np XRP981606

    XRP-XTREME RACING PROD.

    $3.99
    Fluid system compatibility across different component standards is essential when building or upgrading your fuel, oil, or coolant lines. This XRP adapter bridges the gap between -6 AN and NPT connections, eliminating the need for custom fabrication and...
    XRP981606
    SKU:
    XRP981606
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    981606
    $3.99
    Qty in Cart: 0
    Quantity:
    Price:
    $3.99
    Subtotal:
  • Adapter #4 Flare to 1/8 NPT Black XRP981604BB

    XRP Adapter #4 Flare to 1/8 NPT Black XRP981604BB

    XRP-XTREME RACING PROD.

    $4.19
    Reliable hydraulic and pneumatic connections are critical in high-performance racing applications where pressure integrity directly impacts safety and consistency. This XRP adapter bridges the gap between AN-flare and NPT threaded systems, eliminating...
    XRP981604BB
    SKU:
    XRP981604BB
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    MFG Part #:
    981604BB
    $4.19
    Qty in Cart: 0
    Quantity:
    Price:
    $4.19
    Subtotal:
  • Adapter #4 Flare to 1/8 in NPT XRP981604

    XRP Adapter #4 Flare to 1/8 in NPT XRP981604

    XRP-XTREME RACING PROD.

    $3.99
    When you're routing fuel lines, coolant passages, or pneumatic systems through tight engine bays, adapter fittings are non-negotiable. The XRP Adapter #4 Flare to 1/8 in NPT bridges two common industry standards without compromise—giving you the...
    XRP981604
    SKU:
    XRP981604
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    MFG Part #:
    981604
    $3.99
    Qty in Cart: 0
    Quantity:
    Price:
    $3.99
    Subtotal:
  • Adapter #3 Flare X 1/8np Black XRP981603BB

    XRP Adapter #3 Flare X 1/8np Black XRP981603BB

    XRP-XTREME RACING PROD.

    $4.19
    If you're running custom fuel, oil, or coolant lines in your race setup, you need reliable adapters that won't leak under pressure. This XRP straight adapter bridges 3 AN male fittings to 1/8" NPT male ports, giving you the flexibility to integrate...
    XRP981603BB
    SKU:
    XRP981603BB
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    981603BB
    Qty in Cart: 0
    Quantity:
    Price:
    $4.19
    Subtotal:
  • Adapter #3 Flare X 1/8np  XRP981603

    XRP Adapter #3 Flare X 1/8np XRP981603

    XRP-XTREME RACING PROD.

    $3.99
    Fluid system integration demands precise adapter fittings that eliminate leaks and maintain system integrity under high pressure. The XRP Adapter #3 Flare X 1/8np bridges AN and NPT ports with reliable aluminum construction, giving you the flexibility to...
    XRP981603
    SKU:
    XRP981603
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    981603
    $3.99
    Qty in Cart: 0
    Quantity:
    Price:
    $3.99
    Subtotal:
  • #12 Flare Union Black  XRP981512BB

    XRP #12 Flare Union Black XRP981512BB

    XRP-XTREME RACING PROD.

    $15.99
    When you're routing high-pressure fluid lines in a race engine bay, adapter fittings that leak or fail will cost you races and credibility. The XRP #12 Flare Union delivers the reliability you need with a straightforward 12 AN male-to-male design that...
    XRP981512BB
    SKU:
    XRP981512BB
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    MFG Part #:
    981512BB
    Qty in Cart: 0
    Quantity:
    Price:
    $15.99
    Subtotal:
  • #12 Flare Union  XRP981512

    XRP #12 Flare Union XRP981512

    XRP-XTREME RACING PROD.

    $15.99
    Fluid system integrity depends on reliable connections, and the XRP #12 Flare Union delivers precision engineering where it matters most. This CNC-machined adapter eliminates connection weak points in high-pressure fuel and coolant lines, giving you the...
    XRP981512
    SKU:
    XRP981512
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    MFG Part #:
    981512
    $15.99
    Qty in Cart: 0
    Quantity:
    Price:
    $15.99
    Subtotal:
  • #10 Flare Union Black  XRP981510BB

    XRP #10 Flare Union Black XRP981510BB

    XRP-XTREME RACING PROD.

    $8.79
    Reliable hydraulic and fuel line connections are non-negotiable in high-performance racing applications where pressure consistency and leak-free operation directly impact performance and safety. The XRP #10 Flare Union delivers the straightforward,...
    XRP981510BB
    SKU:
    XRP981510BB
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    981510BB
    $8.79
    Qty in Cart: 0
    Quantity:
    Price:
    $8.79
    Subtotal:
  • #8 Flare Union Black  XRP981508BB

    XRP #8 Flare Union Black XRP981508BB

    XRP-XTREME RACING PROD.

    $7.79
    A reliable hydraulic or fuel line connection is fundamental to any high-performance build, and this XRP flare union delivers the precision fitment your system demands. The straight configuration eliminates unnecessary bends in your layout, reducing...
    XRP981508BB
    SKU:
    XRP981508BB
    Availability:
    Ships Same Business Day
    Weight:
    0.07 LBS
    MFG Part #:
    981508BB
    $7.79
    Qty in Cart: 0
    Quantity:
    Price:
    $7.79
    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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