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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
  • P/C #6 to 1/4 NPT Str Adapter Fitting RUS660443

    P/C #6 to 1/4 NPT Str Adapter Fitting 660443

    RUSSELL

    $5.95
    When you're building a custom cooling, fuel, or pneumatic system, you need fittings that handle pressure without leaking or failing. This 6 AN to 1/4 NPT straight adapter bridges two common thread standards, letting you integrate components that wouldn't...
    RUS660443
    SKU:
    RUS660443
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    MFG Part #:
    660443
    $5.95
    Qty in Cart: 0
    Quantity:
    Price:
    $5.95
    Subtotal:
  • 6an x 11/16-18 ORB Adapt Fitting - Power Steering RUS648040

    6an x 11/16-18 ORB Adapt Fitting - Power Steering 648040

    RUSSELL

    $16.95
    If you're retrofitting a power steering system or custom-fabricating a high-performance hydraulic line, this adapter fitting bridges the gap between modern AN fittings and OEM steering components. The 6AN to 11/16-18 ORB connection is industry-standard...
    RUS648040
    SKU:
    RUS648040
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    MFG Part #:
    648040
    $16.95
    Qty in Cart: 0
    Quantity:
    Price:
    $16.95
    Subtotal:
  • #8 Male 37 Deg to 1/2in Tube RUS639230

    #8 Male 37 Deg to 1/2in Tube 639230

    RUSSELL

    $19.95
    If you're building a custom fuel system, cooling loop, or hydraulic circuit, this fitting provides a clean, leak-free connection between -8 AN hose and 1/2-inch tubing. The straight design eliminates unnecessary flow restrictions, while the anodized...
    RUS639230
    SKU:
    RUS639230
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    MFG Part #:
    639230
    $19.95
    Qty in Cart: 0
    Quantity:
    Price:
    $19.95
    Subtotal:
  • #8 Female Swivel to 1/2in Tube RUS639220

    #8 Female Swivel to 1/2in Tube 639220

    RUSSELL

    $16.95
    A quality hydraulic or fuel line connection requires a fitting that won't leak under pressure or vibration—this swivel adapter delivers exactly that. The 8 AN female swivel design accommodates tubing bends and slight misalignment while maintaining a...
    RUS639220
    SKU:
    RUS639220
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    639220
    $16.95
    Qty in Cart: 0
    Quantity:
    Price:
    $16.95
    Subtotal:
  • #6 Male 37 Deg to 3/8in Tube RUS639210

    #6 Male 37 Deg to 3/8in Tube 639210

    RUSSELL

    $15.95
    If you're running a high-performance fuel, coolant, or brake system, your hose connections need to be rock-solid—loose fittings mean leaks, pressure loss, and catastrophic failure on the track. This #6 AN male fitting delivers the precision connection...
    RUS639210
    SKU:
    RUS639210
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    MFG Part #:
    639210
    $15.95
    Qty in Cart: 0
    Quantity:
    Price:
    $15.95
    Subtotal:
  • #6 Female Swivel to 3/8in Tube RUS639200

    #6 Female Swivel to 3/8in Tube 639200

    RUSSELL

    $13.95
    If you're running fuel lines, brake lines, or coolant systems in your race car or custom build, you need fittings that won't leak under pressure and can handle vibration without loosening. This #6 Female Swivel to 3/8in Tube adapter gives you the...
    RUS639200
    SKU:
    RUS639200
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    639200
    $13.95
    Qty in Cart: 0
    Quantity:
    Price:
    $13.95
    Subtotal:
  • Twist-Lok Hose End #10 90 Deg Black RUS624183

    Twist-Lok Hose End #10 90 Deg Black 624183

    RUSSELL

    $27.95
    The Twist-Lok hose end eliminates the guesswork from fuel, coolant, and brake line connections. With a 90-degree configuration and secure twist-on design, you get leak-free performance without the hassle of traditional crimping—ideal for custom fuel...
    RUS624183
    SKU:
    RUS624183
    Availability:
    Ships Same Business Day
    Weight:
    0.21 LBS
    MFG Part #:
    624183
    $27.95
    Qty in Cart: 0
    Quantity:
    Price:
    $27.95
    Subtotal:
  • #10 90 Deg Twist-Lok Hose End RUS624180

    #10 90 Deg Twist-Lok Hose End 624180

    RUSSELL

    $28.95
    Secure, leak-free connections are non-negotiable in high-performance fuel and coolant systems where pressure spikes and vibration are constant threats. This Twist-Lok hose end eliminates the guesswork of traditional clamps with its positive-lock design,...
    RUS624180
    SKU:
    RUS624180
    Availability:
    Ships Same Business Day
    Weight:
    0.18 LBS
    MFG Part #:
    624180
    $28.95
    Qty in Cart: 0
    Quantity:
    Price:
    $28.95
    Subtotal:
  • Twist-Lok Hose End #8 90 Deg Black RUS624173

    Twist-Lok Hose End #8 90 Deg Black 624173

    RUSSELL

    $24.95
    If you're running a high-performance fuel, oil, or coolant system, reliable hose connections are non-negotiable—a single failure can cost you a race or damage expensive engine components. The Twist-Lok design eliminates the need for separate hose clamps,...
    RUS624173
    SKU:
    RUS624173
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    MFG Part #:
    624173
    $24.95
    Qty in Cart: 0
    Quantity:
    Price:
    $24.95
    Subtotal:
  • #8 90 Deg Twist-Lok Hose End RUS624170

    #8 90 Deg Twist-Lok Hose End 624170

    RUSSELL

    $24.95
    If you're running a high-performance fuel or coolant system, you need a hose end that won't leak under pressure or vibration. The #8 90 Deg Twist-Lok Hose End delivers a secure, reusable connection that professional racers trust—eliminating the risk of...
    RUS624170
    SKU:
    RUS624170
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    MFG Part #:
    624170
    $24.95
    Qty in Cart: 0
    Quantity:
    Price:
    $24.95
    Subtotal:
  • Twist-Lok Hose End #6 90 Deg Black RUS624163

    Twist-Lok Hose End #6 90 Deg Black 624163

    RUSSELL

    $20.95
    Reliable hose connections are foundational to any high-performance fuel, oil, or coolant system—a single failed fitting can sideline your engine or worse. The Twist-Lok #6 90-degree hose end delivers consistent, leak-free performance with its proven...
    RUS624163
    SKU:
    RUS624163
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    MFG Part #:
    624163
    $20.95
    Qty in Cart: 0
    Quantity:
    Price:
    $20.95
    Subtotal:
  • #6 90 Deg Twist-Lok Hose End RUS624160

    #6 90 Deg Twist-Lok Hose End 624160

    RUSSELL

    $20.95
    Secure, leak-free fluid delivery is non-negotiable in high-performance racing applications. This #6 90-degree Twist-Lok hose end delivers a reliable, reusable connection that won't slip or weep under pressure—critical when you're running fuel, coolant,...
    RUS624160
    SKU:
    RUS624160
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    MFG Part #:
    624160
    $20.95
    Qty in Cart: 0
    Quantity:
    Price:
    $20.95
    Subtotal:
  • #4 90 Deg Twist-Lok Hose End RUS624150

    #4 90 Deg Twist-Lok Hose End 624150

    RUSSELL

    $19.95
    Secure, leak-free hydraulic and fuel system connections are critical when you're pushing your engine to its limits. This Twist-Lok hose end eliminates the guesswork of traditional crimped fittings, giving you a reusable, field-serviceable connection that...
    RUS624150
    SKU:
    RUS624150
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    MFG Part #:
    624150
    $19.95
    Qty in Cart: 0
    Quantity:
    Price:
    $19.95
    Subtotal:
  • Twist-Lok Hose End #10 45 Deg Black RUS624103

    Twist-Lok Hose End #10 45 Deg Black 624103

    RUSSELL

    $27.95
    The Twist-Lok Hose End #10 ensures leak-free, secure connections in high-pressure fuel, coolant, and hydraulic systems where reliability is non-negotiable. Its 45-degree angle design optimizes routing in tight engine bays and complex plumbing layouts,...
    RUS624103
    SKU:
    RUS624103
    Availability:
    Ships Same Business Day
    Weight:
    0.14 LBS
    MFG Part #:
    624103
    $27.95
    Qty in Cart: 0
    Quantity:
    Price:
    $27.95
    Subtotal:
  • #10 45 Deg Twist-Lok Hose End RUS624100

    #10 45 Deg Twist-Lok Hose End 624100

    RUSSELL

    $27.95
    The #10 45 Deg Twist-Lok Hose End delivers reliable, leak-free connections in high-performance fuel and fluid systems where precision matters. Its quick-disconnect design eliminates the need for traditional hose clamps, reducing installation time while...
    RUS624100
    SKU:
    RUS624100
    Availability:
    Ships Same Business Day
    Weight:
    0.14 LBS
    MFG Part #:
    624100
    $27.95
    Qty in Cart: 0
    Quantity:
    Price:
    $27.95
    Subtotal:
  • Twist-Lok Hose End #8 45 Deg Black RUS624093

    Twist-Lok Hose End #8 45 Deg Black 624093

    RUSSELL

    $24.95
    Reliable hose connections are the backbone of any high-performance fuel, coolant, or hydraulic system—failures at the fitting can cost you a race or damage expensive engine components. This Twist-Lok hose end delivers a secure, leak-free seal with its...
    RUS624093
    SKU:
    RUS624093
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    MFG Part #:
    624093
    $24.95
    Qty in Cart: 0
    Quantity:
    Price:
    $24.95
    Subtotal:
  • Twist-Lok Hose End #6 45 Deg Black RUS624083

    Twist-Lok Hose End #6 45 Deg Black 624083

    RUSSELL

    $22.95
    The Twist-Lok #6 45-degree hose end eliminates the frustration of traditional push-on fittings that slip or leak under pressure. This aluminum construction with black anodized finish delivers the secure, leak-free connections your fuel, coolant, or brake...
    RUS624083
    SKU:
    RUS624083
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    MFG Part #:
    624083
    $22.95
    Qty in Cart: 0
    Quantity:
    Price:
    $22.95
    Subtotal:
  • #6 45 Deg Twist-Lok Hose End RUS624080

    #6 45 Deg Twist-Lok Hose End 624080

    RUSSELL

    $22.95
    Reliable hose connections are non-negotiable in high-performance applications where pressure spikes and vibration can compromise inferior fittings. The #6 45 Deg Twist-Lok Hose End delivers secure, leak-free performance with its intuitive twist-lock...
    RUS624080
    SKU:
    RUS624080
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    MFG Part #:
    624080
    $22.95
    Qty in Cart: 0
    Quantity:
    Price:
    $22.95
    Subtotal:
  • Twist-Lok Hose End #10 Str Black RUS624033

    Twist-Lok Hose End #10 Str Black 624033

    RUSSELL

    $12.95
    Reliable hose connections are non-negotiable in high-performance applications where pressure spikes and vibration can compromise system integrity. The Twist-Lok design eliminates the need for hose clamps, delivering a secure, reusable connection that...
    RUS624033
    SKU:
    RUS624033
    Availability:
    Ships Same Business Day
    Weight:
    0.14 LBS
    MFG Part #:
    624033
    $12.95
    Qty in Cart: 0
    Quantity:
    Price:
    $12.95
    Subtotal:
  • #10 Str Twist-Lok Hose End RUS624030

    #10 Str Twist-Lok Hose End 624030

    RUSSELL

    $12.95
    Reliable hose connections are non-negotiable in high-performance racing, where pressure spikes and vibration can compromise inferior fittings. This #10 AN Twist-Lok hose end delivers the secure, leak-free performance you need without requiring...
    RUS624030
    SKU:
    RUS624030
    Availability:
    Ships Same Business Day
    Weight:
    0.14 LBS
    MFG Part #:
    624030
    $12.95
    Qty in Cart: 0
    Quantity:
    Price:
    $12.95
    Subtotal:
  • Total: items /

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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.

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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!

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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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