Select Your Ride

1
2
3

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
  • #6 > 5/8-18 Alm Power Steering Fitting Black EARAT991947ERL

    Earls #6 > 5/8-18 Alm Power Steering Fitting Black AT991947ERL

    EARLS

    $15.76
    If you're upgrading your power steering system or integrating aftermarket components, you need fittings that match both your existing hardline specifications and your new performance plumbing. This Earls adapter bridges the gap between 5/8-18 inch...
    EARAT991947ERL
    SKU:
    EARAT991947ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    AT991947ERL
    $15.76
    Qty in Cart: 0
    Quantity:
    Price:
    $15.76
    Subtotal:
  • Carb Adapter Fitting 6an to 7/8-20 EARAT991943ERL

    Earls Carb Adapter Fitting 6an to 7/8-20 AT991943ERL

    EARLS

    $17.20
    If you're running a carbureted engine with a fuel system upgrade, a proper adapter fitting is non-negotiable for reliable fuel delivery and leak-free connections. This Earls carb adapter bridges the gap between modern -6 AN fuel line standards and...
    EARAT991943ERL
    SKU:
    EARAT991943ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    AT991943ERL
    $17.20
    Qty in Cart: 0
    Quantity:
    Price:
    $17.20
    Subtotal:
  • Carb Adapter Fitting 6an to 9/16-24 EARAT991942ERL

    Earls Carb Adapter Fitting 6an to 9/16-24 AT991942ERL

    EARLS

    $20.07
    If you're running a carburetor-fed fuel system with AN-line plumbing, you need reliable adapters that won't leak under pressure or vibration. This Earls carb adapter fitting bridges the gap between 6 AN fuel lines and standard 9/16-24 carburetor inlets...
    EARAT991942ERL
    SKU:
    EARAT991942ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    MFG Part #:
    AT991942ERL
    $20.07
    Qty in Cart: 0
    Quantity:
    Price:
    $20.07
    Subtotal:
  • Adapter Fitting Union Reducer 8an to 6an EARAT991912ERL

    Earls Adapter Fitting Union Reducer 8an to 6an AT991912ERL

    EARLS

    $14.31
    When you're plumbing a high-performance fuel or coolant system, mismatched line sizes create unnecessary complexity and potential leak points. This Earls adapter fitting bridges the gap between 8 AN and 6 AN components with a clean, leak-free connection...
    EARAT991912ERL
    SKU:
    EARAT991912ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    AT991912ERL
    $14.31
    Qty in Cart: 0
    Quantity:
    Price:
    $14.31
    Subtotal:
  • Flare Reducer Adapter 16an to 12an EARAT9892162ERL

    Earls Flare Reducer Adapter 16an to 12an AT9892162ERL

    EARLS

    $44.78
    When you're running larger-diameter fuel or coolant lines, you need a reliable way to step down to smaller fittings without compromising flow or introducing leaks. This Earls flare reducer adapter gives you a straightforward, aluminum construction...
    EARAT9892162ERL
    SKU:
    EARAT9892162ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    MFG Part #:
    AT9892162ERL
    $44.78
    Qty in Cart: 0
    Quantity:
    Price:
    $44.78
    Subtotal:
  • Flare Reducer Adapter 12an to 6an EARAT9892126ERL

    Earls Flare Reducer Adapter 12an to 6an AT9892126ERL

    EARLS

    $25.85
    When you're downsizing hydraulic lines or adapting between different AN fittings in a tight engine bay, you need a fitting that doesn't compromise flow or durability. The Earls Flare Reducer Adapter handles the step-down from 12 AN to 6 AN with precision...
    EARAT9892126ERL
    SKU:
    EARAT9892126ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    AT9892126ERL
    $25.85
    Qty in Cart: 0
    Quantity:
    Price:
    $25.85
    Subtotal:
  • Flare Reducer Adapter 10an to 8an EARAT9892108ERL

    Earls Flare Reducer Adapter 10an to 8an AT9892108ERL

    EARLS

    $24.38
    When you're running a high-performance fuel or fluid system, mismatched line sizes can create bottlenecks that compromise flow and increase pressure drop. This Earls flare reducer adapter lets you step down from 10 AN to 8 AN with a secure, leak-free...
    EARAT9892108ERL
    SKU:
    EARAT9892108ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    AT9892108ERL
    $24.38
    Qty in Cart: 0
    Quantity:
    Price:
    $24.38
    Subtotal:
  • Flare Reducer Adapter 10an to 6an EARAT9892106ERL

    Earls Flare Reducer Adapter 10an to 6an AT9892106ERL

    EARLS

    $24.38
    When you're downsizing fuel or coolant lines in your custom build, you need a fitting that handles pressure without compromise. This Earls flare reducer adapter gives you a clean, reliable transition from larger 10 AN lines to smaller 6 AN...
    EARAT9892106ERL
    SKU:
    EARAT9892106ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    MFG Part #:
    AT9892106ERL
    $24.38
    Qty in Cart: 0
    Quantity:
    Price:
    $24.38
    Subtotal:
  • Flare Reducer Adapter 8an to 6an EARAT9892086ERL

    Earls Flare Reducer Adapter 8an to 6an AT9892086ERL

    EARLS

    $21.54
    When you're running high-performance fuel or coolant lines, system compatibility is critical—and mismatched AN fittings create leak points and performance headaches. This Earls flare reducer adapter solves that problem by cleanly stepping down from 8 AN...
    EARAT9892086ERL
    SKU:
    EARAT9892086ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    MFG Part #:
    AT9892086ERL
    $21.54
    Qty in Cart: 0
    Quantity:
    Price:
    $21.54
    Subtotal:
  • Flare Reducer Adapter 8an to 4an EARAT9892084ERL

    Earls Flare Reducer Adapter 8an to 4an AT9892084ERL

    EARLS

    $21.54
    When you're running high-flow fuel or coolant lines, step-down adapters are essential for matching different AN port sizes without compromising flow or reliability. This Earl's flare reducer lets you connect larger 8AN feed lines to smaller 4AN...
    EARAT9892084ERL
    SKU:
    EARAT9892084ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    AT9892084ERL
    $21.54
    Qty in Cart: 0
    Quantity:
    Price:
    $21.54
    Subtotal:
  • Flare Reducer Adapter 6an to 4an EARAT9892064ERL

    Earls Flare Reducer Adapter 6an to 4an AT9892064ERL

    EARLS

    $21.50
    When you're running high-performance fuel or cooling lines, mismatched fitting sizes can force costly workarounds or unnecessary complexity. This Earls flare reducer adapter lets you confidently connect 6 AN female ports to 4 AN male systems without...
    EARAT9892064ERL
    SKU:
    EARAT9892064ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    AT9892064ERL
    $21.50
    Qty in Cart: 0
    Quantity:
    Price:
    $21.50
    Subtotal:
  • #8 Male to #6 Male Port Ano-Tuff Adapter EARAT985086ERL

    Earls #8 Male to #6 Male Port Ano-Tuff Adapter AT985086ERL

    EARLS

    $24.38
    When you're running custom hose routing on a high-performance fuel, coolant, or boost system, mismatched port sizes create weak points in your plumbing. This Earls #8 Male to #6 Male Port adapter lets you step down line sizes cleanly without improvised...
    EARAT985086ERL
    SKU:
    EARAT985086ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    AT985086ERL
    $24.38
    Qty in Cart: 0
    Quantity:
    Price:
    $24.38
    Subtotal:
  • #8 Male to #10 Male Port Ano-Tuff Adapter EARAT985081ERL

    Earls #8 Male to #10 Male Port Ano-Tuff Adapter AT985081ERL

    EARLS

    $23.42
    When you're running custom fuel, coolant, or brake line configurations, adapter fittings are essential for connecting different port sizes without compromising flow or reliability. This Earl's adapter delivers a straightforward, leak-free connection...
    EARAT985081ERL
    SKU:
    EARAT985081ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    AT985081ERL
    $23.42
    Qty in Cart: 0
    Quantity:
    Price:
    $23.42
    Subtotal:
  • #6 Male to #8 Male Port Ano-Tuff Adapter EARAT985068ERL

    Earls #6 Male to #8 Male Port Ano-Tuff Adapter AT985068ERL

    EARLS

    $22.11
    When you're running multiple fuel or coolant lines with different port sizes, adapter fittings are non-negotiable for a clean, leak-free system. This Earls adapter seamlessly connects #6 and #8 AN ports without compromise, using anodized aluminum...
    EARAT985068ERL
    SKU:
    EARAT985068ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    AT985068ERL
    $22.11
    Qty in Cart: 0
    Quantity:
    Price:
    $22.11
    Subtotal:
  • #6 Male to #4 Male Port Ano-Tuff Adapter EARAT985064ERL

    Earls #6 Male to #4 Male Port Ano-Tuff Adapter AT985064ERL

    EARLS

    $15.79
    When you're building a custom cooling or fuel system, port mismatches create restrictions that kill efficiency and reliability. This Earls adapter bridges the gap between #6 and #4 AN ports, letting you integrate components with different port sizes...
    EARAT985064ERL
    SKU:
    EARAT985064ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    MFG Part #:
    AT985064ERL
    $15.79
    Qty in Cart: 0
    Quantity:
    Price:
    $15.79
    Subtotal:
  • #12 Male to #10 Male Port Ano-Tuff Adapter EARAT985013ERL

    Earls #12 Male to #10 Male Port Ano-Tuff Adapter AT985013ERL

    EARLS

    $31.96
    When you're running high-flow fuel, oil, or coolant systems, port size mismatches create unnecessary complexity and potential leak points. This Earls #12 Male to #10 Male adapter lets you confidently connect different AN line sizes without compromising...
    EARAT985013ERL
    SKU:
    EARAT985013ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    MFG Part #:
    AT985013ERL
    Qty in Cart: 0
    Quantity:
    Price:
    $31.96
    Subtotal:
  • #12 Male to #12 Male Port Ano-Tuff Adapter EARAT985012ERL

    Earls #12 Male to #12 Male Port Ano-Tuff Adapter AT985012ERL

    EARLS

    $31.96
    When you're running high-flow fuel, coolant, or power steering systems, port compatibility matters—mismatched fittings create leaks and performance loss. This Earls #12 Male to #12 Male adapter eliminates the guesswork by providing a straight,...
    EARAT985012ERL
    SKU:
    EARAT985012ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    AT985012ERL
    $31.96
    Qty in Cart: 0
    Quantity:
    Price:
    $31.96
    Subtotal:
  • #10 Male to #10 Male Port Ano-Tuff Adapter EARAT985010ERL

    Earls #10 Male to #10 Male Port Ano-Tuff Adapter AT985010ERL

    EARLS

    $23.42
    When you're running high-pressure fuel, coolant, or hydraulic systems, adapter fittings need to be bulletproof—and this Earls straight adapter delivers exactly that. The #10 Male to #10 Male configuration with O-ring sealing eliminates leak points in...
    EARAT985010ERL
    SKU:
    EARAT985010ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    AT985010ERL
    $23.42
    Qty in Cart: 0
    Quantity:
    Price:
    $23.42
    Subtotal:
  • #10 Male to #8 Male Port Ano-Tuff Adapter EARAT985009ERL

    Earls #10 Male to #8 Male Port Ano-Tuff Adapter AT985009ERL

    EARLS

    $25.83
    When you're running high-flow fuel systems, turbo setups, or custom cooling circuits, port mismatches create restrictions and potential leak points that compromise reliability. This Earls #10 Male to #8 Male Port Ano-Tuff Adapter lets you confidently...
    EARAT985009ERL
    SKU:
    EARAT985009ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    MFG Part #:
    AT985009ERL
    Qty in Cart: 0
    Quantity:
    Price:
    $25.83
    Subtotal:
  • #8 Male to #8 Male Port Ano-Tuff Adapter EARAT985008ERL

    Earls #8 Male to #8 Male Port Ano-Tuff Adapter AT985008ERL

    EARLS

    $18.22
    When you're running high-pressure fuel, oil, or coolant systems, port adapter integrity is non-negotiable. This Earls #8 Male to #8 Male Port Ano-Tuff Adapter provides a reliable, straight-through connection between two 8 AN male ports without...
    EARAT985008ERL
    SKU:
    EARAT985008ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    AT985008ERL
    $18.22
    Qty in Cart: 0
    Quantity:
    Price:
    $18.22
    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

SECURE & SAFE PAYMENT

EASY RETURNS

FAST DELIVERY

AUTHORIZED DEALER