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AN-NPT Fittings and Components

AN-NPT Fittings and Components

AN-NPT Fittings and Components

Circle Track AN NPT Fittings and Components at JJ Motorsports

AN-NPT fittings and components bridge the gap between different thread standards, offering flexibility in your fluid system design. Known for their versatility, they ensure a snug fit and efficient flow. Pair them with additional high-performance system fittings to create a strong, fully integrated setup.

Shop trusted brands like Fragola for push-lock options, Aeroquip for socketless fittings. Explore related categories such as High-Performance System Fittings for complete fluid system solutions or Circle Track Hoses for matching lines.

Top Circle Track AN NPT Fittings and Components

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
  • Reducer NPT 3/8in to 1/4in ALL49772

    Allstar Performance Reducer NPT 3/8in to 1/4in ALL49772

    ALLSTAR PERFORMANCE

    $6.99
    When you're building or modifying fluid delivery systems in your race engine, thread mismatches create leaks, flow restrictions, and costly downtime. The Allstar Performance Reducer NPT fitting gives you a reliable way to step down from larger 3/8" NPT...
    ALL49772
    SKU:
    ALL49772
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    $6.99
    Qty in Cart: 0
    Quantity:
    Price:
    $6.99
    Subtotal:
  • Reducer NPT 3/8in to 1/8in ALL49771

    Allstar Performance Reducer NPT 3/8in to 1/8in ALL49771

    ALLSTAR PERFORMANCE

    $6.49
    Precision fluid routing demands exact port sizing—this reducer lets you step down from 3/8in NPT to 1/8in NPT without compromising flow integrity or system reliability. Whether you're plumbing a custom fuel system, oil cooler circuit, or brake line...
    ALL49771
    SKU:
    ALL49771
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    $6.49
    Qty in Cart: 0
    Quantity:
    Price:
    $6.49
    Subtotal:
  • Reducer NPT 1/4in to 1/8in ALL49770

    Allstar Performance Reducer NPT 1/4in to 1/8in ALL49770

    ALLSTAR PERFORMANCE

    $5.99
    When you're building custom fuel, coolant, or pneumatic lines, adapter fittings are non-negotiable—mismatched NPT ports create leaks, failed inspections, and wasted track time. This Allstar Performance reducer handles the transition from 1/4in to 1/8in...
    ALL49770
    SKU:
    ALL49770
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    $5.99
    Qty in Cart: 0
    Quantity:
    Price:
    $5.99
    Subtotal:
  • Gauge Adapter AN -8 Male x -8 Male x 1/8in NPT ALL49765

    Allstar Performance Gauge Adapter AN -8 Male x -8 Male x 1/8in NPT ALL49765

    ALLSTAR PERFORMANCE

    $13.49
    If you're running forced induction or high-pressure fuel systems, you need reliable gauge integration without compromising line integrity. This Allstar adapter lets you tap into critical system pressure points while maintaining a straight -8 AN flow...
    ALL49765
    SKU:
    ALL49765
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    $13.49
    Qty in Cart: 0
    Quantity:
    Price:
    $13.49
    Subtotal:
  • Gauge Adapter 3/8in NPT x -6 Male x 1/8in NPT ALL49763

    Allstar Performance Gauge Adapter 3/8in NPT x -6 Male x 1/8in NPT ALL49763

    ALLSTAR PERFORMANCE

    $11.99
    If you're running forced induction or a high-pressure fuel system, a dedicated gauge port keeps your diagnostics clean and your data reliable. This Allstar adapter consolidates multiple line connections into a single, organized mounting point—eliminating...
    ALL49763
    SKU:
    ALL49763
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    $11.99
    Qty in Cart: 0
    Quantity:
    Price:
    $11.99
    Subtotal:
  • Gauge Adapter AN -6 Fem x -6 Male x 1/8in NPT ALL49762

    Allstar Performance Gauge Adapter AN -6 Fem x -6 Male x 1/8in NPT ALL49762

    ALLSTAR PERFORMANCE

    $16.99
    When you're running forced induction or monitoring critical fuel pressure, you need a reliable pass-through solution that doesn't compromise flow or create weak points in your AN line system. This Allstar adapter lets you tap a gauge port without...
    ALL49762
    SKU:
    ALL49762
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    $16.99
    Qty in Cart: 0
    Quantity:
    Price:
    $16.99
    Subtotal:
  • Gauge Adapter AN -6 Male x -6 Male x 1/8in NPT ALL49761

    Allstar Performance Gauge Adapter AN -6 Male x -6 Male x 1/8in NPT ALL49761

    ALLSTAR PERFORMANCE

    $8.99
    If you're running forced induction or a high-pressure fuel system, you need a reliable way to monitor real-time data without sacrificing line integrity. This Allstar Performance gauge adapter lets you tap into your AN-6 fuel or boost lines with a...
    ALL49761
    SKU:
    ALL49761
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $8.99
    Subtotal:
  • Gauge Adapter AN -4 Male x -4 Male x 1/8in NPT ALL49760

    Allstar Performance Gauge Adapter AN -4 Male x -4 Male x 1/8in NPT ALL49760

    ALLSTAR PERFORMANCE

    $10.99
    When you're running forced induction or high-flow fuel systems, accurate pressure monitoring is non-negotiable. This Allstar gauge adapter provides a clean, purpose-built solution for tapping into your -4 AN fuel or oil lines without sacrificing flow or...
    ALL49760
    SKU:
    ALL49760
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    $10.99
    Qty in Cart: 0
    Quantity:
    Price:
    $10.99
    Subtotal:
  • Expander AN -16 Female to -20 Male ALL49756

    Allstar Performance Expander AN -16 Female to -20 Male ALL49756

    ALLSTAR PERFORMANCE

    $42.99
    When you're building a custom fuel, oil, or coolant line system, you need adapters that maintain flow integrity without leaks or restrictions. This Allstar Performance expander fitting lets you step up from -16 AN to -20 AN sizing, giving you flexibility...
    ALL49756
    SKU:
    ALL49756
    Availability:
    Ships Same Business Day
    Weight:
    0.23 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $42.99
    Subtotal:
  • Expander AN -12 Female to -16 Male ALL49755

    Allstar Performance Expander AN -12 Female to -16 Male ALL49755

    ALLSTAR PERFORMANCE

    $36.99
    When you're running AN -12 and AN -16 lines on your build, this straight expander adapter ensures clean, leak-free connections without custom fabrication. The black anodized aluminum construction resists corrosion in high-heat engine bays, while the...
    ALL49755
    SKU:
    ALL49755
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    $36.99
    Qty in Cart: 0
    Quantity:
    Price:
    $36.99
    Subtotal:
  • Expander AN -10 Female to -12 Male ALL49754

    Allstar Performance Expander AN -10 Female to -12 Male ALL49754

    ALLSTAR PERFORMANCE

    $16.99
    When you're running different AN line sizes across your fuel, oil, or coolant systems, mismatched fittings create leaks and performance headaches. This Allstar Performance expander adapter gives you a clean, reliable connection between -10 and -12 AN...
    ALL49754
    SKU:
    ALL49754
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    $16.99
    Qty in Cart: 0
    Quantity:
    Price:
    $16.99
    Subtotal:
  • Expander AN -8 Female to -10 Male ALL49753

    Allstar Performance Expander AN -8 Female to -10 Male ALL49753

    ALLSTAR PERFORMANCE

    $14.99
    When stepping up to larger fuel or coolant lines in your fuel system, you need a reliable adapter that maintains pressure integrity without leaks. This Allstar expander fitting bridges the gap between -8 and -10 AN line sizes, letting you downsize from...
    ALL49753
    SKU:
    ALL49753
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    $14.99
    Qty in Cart: 0
    Quantity:
    Price:
    $14.99
    Subtotal:
  • Expander AN -6 Female to -8 Male ALL49752

    Allstar Performance Expander AN -6 Female to -8 Male ALL49752

    ALLSTAR PERFORMANCE

    $11.99
    When you're running high-pressure fuel or coolant systems, mismatched AN fittings can create leaks, pressure drops, and lost performance. This Allstar Performance expander adapter lets you step up from -6 to -8 AN line sizes seamlessly, making it...
    ALL49752
    SKU:
    ALL49752
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    $11.99
    Qty in Cart: 0
    Quantity:
    Price:
    $11.99
    Subtotal:
  • Expander AN -4 Female to -6 Male ALL49751

    Allstar Performance Expander AN -4 Female to -6 Male ALL49751

    ALLSTAR PERFORMANCE

    $11.99
    When you're building or modifying a high-performance fuel system, brake system, or other fluid delivery network, adapter fittings are non-negotiable—they're the bridge between incompatible hose sizes that ensure leak-free connections and reliable...
    ALL49751
    SKU:
    ALL49751
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    $11.99
    Qty in Cart: 0
    Quantity:
    Price:
    $11.99
    Subtotal:
  • Expander AN -3 Female to -4 Male ALL49750

    Allstar Performance Expander AN -3 Female to -4 Male ALL49750

    ALLSTAR PERFORMANCE

    $10.99
    When you're building a custom fuel, oil, or coolant line setup, mismatched AN fitting sizes can force expensive rework or compromise system integrity. This Allstar Performance expander adapter bridges the gap between -3 and -4 AN lines with a...
    ALL49750
    SKU:
    ALL49750
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    $10.99
    Qty in Cart: 0
    Quantity:
    Price:
    $10.99
    Subtotal:
  • Reducer AN -16 Female to -12 Male ALL49749

    Allstar Performance Reducer AN -16 Female to -12 Male ALL49749

    ALLSTAR PERFORMANCE

    $21.99
    When you're building or modifying a fuel, oil, or cooling system, mismatched hose connections create leak points and restrict flow. This Allstar Performance reducer fitting lets you confidently connect -16 AN female components to -12 AN male ports...
    ALL49749
    SKU:
    ALL49749
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    $21.99
    Qty in Cart: 0
    Quantity:
    Price:
    $21.99
    Subtotal:
  • Reducer AN -16 Female to -10 Male ALL49748

    Allstar Performance Reducer AN -16 Female to -10 Male ALL49748

    ALLSTAR PERFORMANCE

    $22.99
    When you're running high-flow fuel, coolant, or boost lines through your engine bay, size mismatches create restrictions that rob you of performance and reliability. This Allstar Performance reducer adapter lets you confidently step down from -16 AN to...
    ALL49748
    SKU:
    ALL49748
    Availability:
    Ships Same Business Day
    Weight:
    0.18 LBS
    $22.99
    Qty in Cart: 0
    Quantity:
    Price:
    $22.99
    Subtotal:
  • Reducer AN -12 Female to -10 Male ALL49747

    Allstar Performance Reducer AN -12 Female to -10 Male ALL49747

    ALLSTAR PERFORMANCE

    $18.99
    When you're running high-flow fuel systems, transmission coolers, or custom hydraulic lines, port compatibility becomes critical. This Allstar Performance reducer fitting bridges the gap between -12 and -10 AN ports, allowing you to connect larger...
    ALL49747
    SKU:
    ALL49747
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    $18.99
    Qty in Cart: 0
    Quantity:
    Price:
    $18.99
    Subtotal:
  • Reducer AN -12 Female to -8 Male ALL49746

    Allstar Performance Reducer AN -12 Female to -8 Male ALL49746

    ALLSTAR PERFORMANCE

    $17.99
    When you're running multiple fuel or coolant lines at different pressures, size mismatches create leaks, flow restrictions, and reliability issues on the track or in your shop. This Allstar Performance reducer adapter lets you step down from -12 AN to -8...
    ALL49746
    SKU:
    ALL49746
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    $17.99
    Qty in Cart: 0
    Quantity:
    Price:
    $17.99
    Subtotal:
  • Reducer AN -10 Female to -8 Male ALL49745

    Allstar Performance Reducer AN -10 Female to -8 Male ALL49745

    ALLSTAR PERFORMANCE

    $12.99
    When you're running a custom fuel system or hydraulic line setup, mismatched AN fittings can compromise flow and create leak points. This Allstar Performance reducer adapter lets you seamlessly connect -10 AN female swivel ports to -8 AN male lines,...
    ALL49745
    SKU:
    ALL49745
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    $12.99
    Qty in Cart: 0
    Quantity:
    Price:
    $12.99
    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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