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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
  • St. #3 > 1/8 Npt Adapter Fitting Black EARAT981603ERL

    Earls St. #3 > 1/8 Npt Adapter Fitting Black AT981603ERL

    EARLS

    $7.10
    Fluid system adapters are critical connection points in high-performance builds—mismatched fittings lead to leaks, pressure loss, and costly downtime. This Earls straight adapter bridges the gap between AN and NPT standards, giving you the flexibility to...
    EARAT981603ERL
    SKU:
    EARAT981603ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.01 LBS
    MFG Part #:
    AT981603ERL
    Qty in Cart: 0
    Quantity:
    Price:
    $7.10
    Subtotal:
  • #10 Male Union Ano-Tuff  EARAT981510ERL

    Earls #10 Male Union Ano-Tuff AT981510ERL

    EARLS

    $15.76
    When you're running high-pressure fuel, coolant, or brake lines, connection integrity is non-negotiable. The Earls #10 Male Union Ano-Tuff AT981510ERL delivers a leak-free, straight-through connection with the durability to handle repeated thermal cycles...
    EARAT981510ERL
    SKU:
    EARAT981510ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    AT981510ERL
    $15.76
    Qty in Cart: 0
    Quantity:
    Price:
    $15.76
    Subtotal:
  • #8 Male Union Ano-Tuff  EARAT981508ERL

    Earls #8 Male Union Ano-Tuff AT981508ERL

    EARLS

    $20.07
    When you're running high-pressure hydraulic or fuel systems, connection integrity is non-negotiable. This Earls #8 Male Union delivers a straight, no-compromise adapter for 8 AN line configurations, using black anodized aluminum construction that resists...
    EARAT981508ERL
    SKU:
    EARAT981508ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    MFG Part #:
    AT981508ERL
    $20.07
    Qty in Cart: 0
    Quantity:
    Price:
    $20.07
    Subtotal:
  • #6 Male Union Ano-Tuff  EARAT981506ERL

    Earls #6 Male Union Ano-Tuff AT981506ERL

    EARLS

    $9.06
    When you're running high-pressure fuel, coolant, or fluid lines, connection integrity is non-negotiable. The Earls #6 Male Union Ano-Tuff AT981506ERL delivers a robust, leak-free connection between two 6 AN male fittings with aerospace-grade aluminum...
    EARAT981506ERL
    SKU:
    EARAT981506ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    AT981506ERL
    $9.06
    Qty in Cart: 0
    Quantity:
    Price:
    $9.06
    Subtotal:
  • Adapter Fitting Union 4an to 4 an EARAT981504ERL

    Earls Adapter Fitting Union 4an to 4 an AT981504ERL

    EARLS

    $7.14
    Clean, reliable fluid line connections are the foundation of any high-performance hydraulic or fuel system. This Earl's straight adapter fitting eliminates the need for additional hose segments, reducing potential leak points and simplifying your...
    EARAT981504ERL
    SKU:
    EARAT981504ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    MFG Part #:
    AT981504ERL
    $7.14
    Qty in Cart: 0
    Quantity:
    Price:
    $7.14
    Subtotal:
  • Port Plug O-Ring Seal 16an (1pk) EARAT981416ERL

    Earls Port Plug O-Ring Seal 16an (1pk) AT981416ERL

    EARLS

    $21.50
    Proper port sealing is non-negotiable in high-performance fuel and fluid systems—a single leak can compromise your entire build. The Earls Port Plug O-Ring Seal provides a reliable, reusable solution for sealing 16 AN ports without the need for thread...
    EARAT981416ERL
    SKU:
    EARAT981416ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    AT981416ERL
    $21.50
    Qty in Cart: 0
    Quantity:
    Price:
    $21.50
    Subtotal:
  • Port Plug O-Ring Seal 12an (1pk) EARAT981412ERL

    Earls Port Plug O-Ring Seal 12an (1pk) AT981412ERL

    EARLS

    $17.20
    Port plugs are essential for sealing unused AN fittings on your fuel system, cooling lines, or custom fabrication projects—keeping contaminants out and preventing fluid leaks. This Earls 12AN plug ensures a reliable, repeatable seal with its precision...
    EARAT981412ERL
    SKU:
    EARAT981412ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    MFG Part #:
    AT981412ERL
    $17.20
    Qty in Cart: 0
    Quantity:
    Price:
    $17.20
    Subtotal:
  • #10 Port Plug Ano-Tuff  EARAT981410ERL

    Earls #10 Port Plug Ano-Tuff AT981410ERL

    EARLS

    $11.45
    When you're running high-pressure fuel, oil, or coolant systems, you need fittings that won't fail under extreme conditions. The Earls #10 Port Plug delivers the reliability racers demand with a precision-engineered design that seals tight and stays put...
    EARAT981410ERL
    SKU:
    EARAT981410ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    MFG Part #:
    AT981410ERL
    $11.45
    Qty in Cart: 0
    Quantity:
    Price:
    $11.45
    Subtotal:
  • #8 Port Plug Ano-Tuff  EARAT981408ERL

    Earls #8 Port Plug Ano-Tuff AT981408ERL

    EARLS

    $8.59
    When you're running high-flow fuel systems, turbo feeds, or custom coolant lines, you need fittings that won't leak under pressure. The Earls #8 Port Plug delivers reliability where it matters most—sealing off unused 8 AN ports with a proven O-ring...
    EARAT981408ERL
    SKU:
    EARAT981408ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    MFG Part #:
    AT981408ERL
    $8.59
    Qty in Cart: 0
    Quantity:
    Price:
    $8.59
    Subtotal:
  • Swivel Coupling Fitting 8an Female 45 Deg EARAT939208ERL

    Earls Swivel Coupling Fitting 8an Female 45 Deg AT939208ERL

    EARLS

    $33.48
    Fluid routing in high-performance systems demands fittings that won't compromise flow or create stress points in your line runs. This Earls swivel coupling eliminates the need for multiple adapters by providing dual 8 AN female connections at a 45-degree...
    EARAT939208ERL
    SKU:
    EARAT939208ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    AT939208ERL
    $33.48
    Qty in Cart: 0
    Quantity:
    Price:
    $33.48
    Subtotal:
  • Swivel Coupling Fitting 12an Female 90 Deg EARAT935112ERL

    Earls Swivel Coupling Fitting 12an Female 90 Deg AT935112ERL

    EARLS

    $54.59
    When routing AN lines through tight engine bays or complex chassis layouts, rigid 90-degree fittings limit your design options and create stress points at connections. This Earls swivel coupling eliminates those constraints by allowing both ends to...
    EARAT935112ERL
    SKU:
    EARAT935112ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    MFG Part #:
    AT935112ERL
    $54.59
    Qty in Cart: 0
    Quantity:
    Price:
    $54.59
    Subtotal:
  • Swivel Coupling Fitting 10an Female 90 Deg EARAT935110ERL

    Earls Swivel Coupling Fitting 10an Female 90 Deg AT935110ERL

    EARLS

    $47.75
    When you're running high-pressure fuel, coolant, or hydraulic lines, directional constraints demand a fitting that won't compromise flow or introduce weak points. This Earls swivel coupling gives you the flexibility to route lines precisely where they...
    EARAT935110ERL
    SKU:
    EARAT935110ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    AT935110ERL
    $47.75
    Qty in Cart: 0
    Quantity:
    Price:
    $47.75
    Subtotal:
  • Swivel Coupling Fitting 8an Female 90 Deg EARAT935108ERL

    Earls Swivel Coupling Fitting 8an Female 90 Deg AT935108ERL

    EARLS

    $31.96
    When you're routing high-flow fuel, coolant, or brake lines through tight engine bays, hose routing becomes critical to performance and reliability. This Earls swivel coupling allows you to make clean 90-degree turns without kinks or stress points that...
    EARAT935108ERL
    SKU:
    EARAT935108ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    MFG Part #:
    AT935108ERL
    $31.96
    Qty in Cart: 0
    Quantity:
    Price:
    $31.96
    Subtotal:
  • Swivel Coupling Fitting 6an Female 90 Deg EARAT935106ERL

    Earls Swivel Coupling Fitting 6an Female 90 Deg AT935106ERL

    EARLS

    $31.96
    Fluid routing in high-performance systems demands precision and reliability—this swivel coupling delivers both. The 90-degree configuration eliminates awkward hose runs and reduces stress on connections, while the dual female swivel design accommodates...
    EARAT935106ERL
    SKU:
    EARAT935106ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    AT935106ERL
    $31.96
    Qty in Cart: 0
    Quantity:
    Price:
    $31.96
    Subtotal:
  • Swivel Coupling Fitting 12an Fem 90 Deg Low Prfl EARAT934112ERL

    Earls Swivel Coupling Fitting 12an Fem 90 Deg Low Prfl AT934112ERL

    EARLS

    $59.95
    When you're routing high-pressure lines through tight engine bays or complex fuel system layouts, a poorly designed fitting can create leaks, restrict flow, and compromise reliability. The Earls Swivel Coupling Fitting eliminates these headaches with a...
    EARAT934112ERL
    SKU:
    EARAT934112ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    MFG Part #:
    AT934112ERL
    Qty in Cart: 0
    Quantity:
    Price:
    $59.95
    Subtotal:
  • Swivel Coupling Fitting 10an Fem 90 Deg Low Prfl EARAT934110ERL

    Earls Swivel Coupling Fitting 10an Fem 90 Deg Low Prfl AT934110ERL

    EARLS

    $47.74
    When you're routing high-flow fuel or coolant lines through a tight engine bay, sharp 90-degree angles and bulky fittings become liabilities. Earls' low-profile swivel coupling gives you the precise directional control you need without adding unnecessary...
    EARAT934110ERL
    SKU:
    EARAT934110ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    MFG Part #:
    AT934110ERL
    Qty in Cart: 0
    Quantity:
    Price:
    $47.74
    Subtotal:
  • Swivel Coupling Fitting 8an Fem 90 Deg Low Prfl EARAT934108ERL

    Earls Swivel Coupling Fitting 8an Fem 90 Deg Low Prfl AT934108ERL

    EARLS

    $33.48
    Tight engine bays and complex fluid line routing demand fittings that won't compromise performance or force costly workarounds. The Earls Swivel Coupling Fitting gives you the directional flexibility to run AN lines exactly where you need them, while its...
    EARAT934108ERL
    SKU:
    EARAT934108ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    MFG Part #:
    AT934108ERL
    $33.48
    Qty in Cart: 0
    Quantity:
    Price:
    $33.48
    Subtotal:
  • Swivel Coupling Fitting 6an Fem 90 Deg Low Prfl EARAT934106ERL

    Earls Swivel Coupling Fitting 6an Fem 90 Deg Low Prfl AT934106ERL

    EARLS

    $38.37
    Tight engine bays and complex plumbing require fittings that won't compromise your line routing or add unnecessary bulk. The Earls Swivel Coupling Fitting gives you a genuine 90-degree directional change with low-profile construction, so you can run AN...
    EARAT934106ERL
    SKU:
    EARAT934106ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    MFG Part #:
    AT934106ERL
    $38.37
    Qty in Cart: 0
    Quantity:
    Price:
    $38.37
    Subtotal:
  • Adapter Fitting Tee AN Female Swvl on Run 10an EARAT926110ERL

    Earls Adapter Fitting Tee AN Female Swvl on Run 10an AT926110ERL

    EARLS

    $68.25
    Clean, reliable fluid distribution is non-negotiable in high-performance fuel and cooling systems. This Earls adapter tee consolidates three connection points into a single, compact fitting, eliminating the need for multiple separate adapters and...
    EARAT926110ERL
    SKU:
    EARAT926110ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    AT926110ERL
    $68.25
    Qty in Cart: 0
    Quantity:
    Price:
    $68.25
    Subtotal:
  • Adapter Fitting Tee AN Female Swvl on Run 8an EARAT926108ERL

    Earls Adapter Fitting Tee AN Female Swvl on Run 8an AT926108ERL

    EARLS

    $60.35
    A quality adapter tee is essential for organizing complex fuel and coolant systems in high-performance applications where space and reliability are non-negotiable. This Earls adapter fitting delivers the precise flow distribution you need with a swivel...
    EARAT926108ERL
    SKU:
    EARAT926108ERL
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    AT926108ERL
    $60.35
    Qty in Cart: 0
    Quantity:
    Price:
    $60.35
    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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