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Tube Nuts and Sleeves

Tube Nuts and Sleeves

Tube Nuts and Sleeves

Circle Track Tube Nuts and Sleeves at JJ Motorsports

Achieve secure, leak-free connections in your circle track fluid lines with high-quality tube nuts and sleeves from JJ Motorsports. Ideal for custom setups in fuel, oil, and brake systems, these components provide reliable compression fittings for high-pressure racing environments in IMCA, USMTS, late models, modifieds, and street stocks.

Shop trusted brands like FRAGOLA, ALLSTAR PERFORMANCE, and XRP-XTREME RACING PROD.. Explore related categories such as Fittings and Plugs.

Top Circle Track Tube Nuts and Sleeves

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
  • #3 Brass Replace Sleeve  AERFCM3720

    Aeroquip #3 Brass Replace Sleeve FCM3720

    AEROQUIP

    $12.99
    Keep your PTFE line connections tight, leak-free, and performing at their best with the Aeroquip #3 Brass Replacement Sleeve (FCM3720). Designed as a direct replacement compression ferrule, this brass sleeve ensures a secure, professional-grade seal...
    AERFCM3720
    SKU:
    AERFCM3720
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    FCM3720
    $12.99
    Qty in Cart: 0
    Quantity:
    Price:
    $12.99
    Subtotal:
  • #6 Steel Tube Sleeve  AERFCM3680

    Aeroquip #6 Steel Tube Sleeve FCM3680

    AEROQUIP

    $7.09
    When precision and reliability matter most, the Aeroquip FCM3680 Steel Tube Sleeve delivers the secure, leak-free connections your performance build demands. Crafted from durable nickel-plated steel, this fitting is built to handle the rigors of...
    AERFCM3680
    SKU:
    AERFCM3680
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    MFG Part #:
    FCM3680
    $7.09
    Qty in Cart: 0
    Quantity:
    Price:
    $7.09
    Subtotal:
  • #10 Alm Tube Nut  AERFCM3677

    Aeroquip #10 Alm Tube Nut FCM3677

    AEROQUIP

    $9.99
    Upgrade your fuel or brake lines with the precision and reliability that only Aeroquip can deliver. The FCM3677 Tube Nut is built for performance enthusiasts who demand leak-free connections and a clean, professional finish under the hood. Sold as a...
    AERFCM3677
    SKU:
    AERFCM3677
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    FCM3677
    $9.99
    Qty in Cart: 0
    Quantity:
    Price:
    $9.99
    Subtotal:
  • #8 Alm Tube nut  AERFCM3676

    Aeroquip #8 Alm Tube nut FCM3676

    AEROQUIP

    $6.59
    Keep your fuel, oil, or brake lines locked down tight with the Aeroquip FCM3676 #8 Aluminum Tube Nut — a go-to choice for performance builders who refuse to compromise on quality. Crafted from lightweight aluminum with a sharp blue anodized finish, these...
    AERFCM3676
    SKU:
    AERFCM3676
    Availability:
    Ships Same Business Day
    Weight:
    0.07 LBS
    MFG Part #:
    FCM3676
    $6.59
    Qty in Cart: 0
    Quantity:
    Price:
    $6.59
    Subtotal:
  • #6 Alm Tube Nut  AERFCM3675

    Aeroquip #6 Alm Tube Nut FCM3675

    AEROQUIP

    $5.59
    Keep your fuel, oil, or brake lines locked down with confidence using the Aeroquip #6 Aluminum Tube Nut (FCM3675) — a trusted choice for performance builds that demand precision and reliability. Crafted from lightweight aluminum with a striking blue...
    AERFCM3675
    SKU:
    AERFCM3675
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    FCM3675
    $5.59
    Qty in Cart: 0
    Quantity:
    Price:
    $5.59
    Subtotal:
  • #10 Alm Tube Sleeve  AERFCM3673

    Aeroquip #10 Alm Tube Sleeve FCM3673

    AEROQUIP

    $5.59
    Upgrade your fuel or fluid lines with confidence using the Aeroquip FCM3673 Aluminum Tube Sleeve — a precision-crafted fitting designed for reliability under pressure. Built for performance enthusiasts who refuse to compromise, this blue anodized sleeve...
    AERFCM3673
    SKU:
    AERFCM3673
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    MFG Part #:
    FCM3673
    Qty in Cart: 0
    Quantity:
    Price:
    $5.59
    Subtotal:
  • #8 Alm Tube Sleeve  AERFCM3672

    Aeroquip #8 Alm Tube Sleeve FCM3672

    AEROQUIP

    $6.09
    Upgrade your fuel or fluid lines with confidence using the Aeroquip FCM3672 Aluminum Tube Sleeve — a trusted choice for performance builders who demand precision and reliability. Engineered to deliver a secure, leak-free connection, this anodized...
    AERFCM3672
    SKU:
    AERFCM3672
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    FCM3672
    Qty in Cart: 0
    Quantity:
    Price:
    $6.09
    Subtotal:
  • #4 Alm Tube Sleeve  AERFCM3670

    Aeroquip #4 Alm Tube Sleeve FCM3670

    AEROQUIP

    $6.59
    When precision and reliability matter most, the Aeroquip FCM3670 Tube Sleeves deliver a secure, leak-free connection that serious builders and racers trust. Crafted from lightweight aluminum with a striking blue anodized finish, these sleeves are as...
    AERFCM3670
    SKU:
    AERFCM3670
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    FCM3670
    $6.59
    Qty in Cart: 0
    Quantity:
    Price:
    $6.59
    Subtotal:
  • #3 Alm Tube Sleeve  AERFCM3669

    Aeroquip #3 Alm Tube Sleeve FCM3669

    AEROQUIP

    $10.49
    Keep your fuel, oil, or brake lines secure and leak-free with the Aeroquip #3 Aluminum Tube Sleeve (FCM3669) — a go-to choice for performance builders who refuse to compromise on quality. Crafted from lightweight aluminum with a sleek blue anodized...
    AERFCM3669
    SKU:
    AERFCM3669
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    FCM3669
    $10.49
    Qty in Cart: 0
    Quantity:
    Price:
    $10.49
    Subtotal:
  • #4 Tube Sleeve Steel  AERFCM3668

    Aeroquip #4 Tube Sleeve Steel FCM3668

    AEROQUIP

    $7.59
    Keep your fuel, oil, or brake lines sealed tight with the Aeroquip #4 Tube Sleeve Steel FCM3668 — a trusted solution built for performance applications where reliability is non-negotiable. Crafted from durable steel with a premium nickel-plated finish,...
    AERFCM3668
    SKU:
    AERFCM3668
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    MFG Part #:
    FCM3668
    Qty in Cart: 0
    Quantity:
    Price:
    $7.59
    Subtotal:
  • #3 Tube Sleeve Steel (6pk) AERFCM3667

    Aeroquip #3 Tube Sleeve Steel (6pk) FCM3667

    AEROQUIP

    $16.49
    Keep your fuel, oil, or brake lines locked in tight with the Aeroquip #3 Tube Sleeve Steel 6-Pack (FCM3667) — a must-have for any serious build or repair job. Crafted from durable nickel-plated steel, these sleeves deliver a secure, leak-free connection...
    AERFCM3667
    SKU:
    AERFCM3667
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    MFG Part #:
    FCM3667
    $16.49
    Qty in Cart: 0
    Quantity:
    Price:
    $16.49
    Subtotal:
  • #6 Steel Tube Nut  AERFCM3572

    Aeroquip #6 Steel Tube Nut FCM3572

    AEROQUIP

    $6.09
    Keep your fuel, oil, or brake lines locked down tight with the Aeroquip #6 Steel Tube Nut (FCM3572) — a precision-engineered fitting that delivers rock-solid connections you can trust under pressure. Built from durable steel with a sleek nickel plating,...
    AERFCM3572
    SKU:
    AERFCM3572
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    MFG Part #:
    FCM3572
    $6.09
    Qty in Cart: 0
    Quantity:
    Price:
    $6.09
    Subtotal:
  • #5 Steel Tube Nut  AERFCM3571

    Aeroquip #5 Steel Tube Nut FCM3571

    AEROQUIP

    $4.59
    When precision and durability matter, the Aeroquip #5 Steel Tube Nut FCM3571 delivers a rock-solid connection you can trust under pressure. Built for performance enthusiasts and professionals alike, this nickel-plated fitting resists corrosion while...
    AERFCM3571
    SKU:
    AERFCM3571
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    MFG Part #:
    FCM3571
    $4.59
    Qty in Cart: 0
    Quantity:
    Price:
    $4.59
    Subtotal:
  • #4 Steel Tube Nut  AERFCM3570

    Aeroquip #4 Steel Tube Nut FCM3570

    AEROQUIP

    $4.59
    When precision and reliability matter, the Aeroquip #4 Steel Tube Nut (FCM3570) delivers the secure, leak-free connection your fuel, oil, or brake lines demand. Built to AN standards with a tough nickel-plated finish, this fitting is a go-to choice for...
    AERFCM3570
    SKU:
    AERFCM3570
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    FCM3570
    $4.59
    Qty in Cart: 0
    Quantity:
    Price:
    $4.59
    Subtotal:
  • #4 An Aluminum Tube Nut  AERFCM3555

    Aeroquip #4 An Aluminum Tube Nut FCM3555

    AEROQUIP

    $9.19
    Upgrade your fuel, oil, or brake lines with confidence using the Aeroquip #4 AN Aluminum Tube Nuts (FCM3555) — a trusted name in high-performance plumbing solutions. Engineered for a precise, leak-free connection, these blue anodized beauties not only...
    AERFCM3555
    SKU:
    AERFCM3555
    Availability:
    Ships Same Business Day
    Weight:
    0.07 LBS
    MFG Part #:
    FCM3555
    $9.19
    Qty in Cart: 0
    Quantity:
    Price:
    $9.19
    Subtotal:
  • #3 An Aluminum Tube Nut  AERFCM3554

    Aeroquip #3 An Aluminum Tube Nut FCM3554

    AEROQUIP

    $10.49
    Keep your fuel, oil, or brake lines locked down tight with the Aeroquip #3 AN Aluminum Tube Nuts (FCM3554) — a go-to choice for performance builders who refuse to compromise on quality. These blue anodized beauties not only deliver a secure, leak-free...
    AERFCM3554
    SKU:
    AERFCM3554
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    FCM3554
    Qty in Cart: 0
    Quantity:
    Price:
    $10.49
    Subtotal:
  • #10 Replacement Olive For Race Rite Hose End FRG2500010

    Fragola #10 Replacement Olive For Race Rite Hose End 2500010

    FRAGOLA

    $4.49
    Hose fittings take a beating in high-performance applications, and a compromised compression ferrule can lead to leaks, pressure loss, or catastrophic failure on the track. This Fragola replacement olive restores the integrity of your Race-Rite hose end,...
    FRG2500010
    SKU:
    FRG2500010
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    $4.49
    Qty in Cart: 0
    Quantity:
    Price:
    $4.49
    Subtotal:
  • #6 Tube Sleeve 2 Pk  XRP981906-2

    XRP #6 Tube Sleeve 2 Pk XRP981906-2

    XRP-XTREME RACING PROD.

    $5.89
    Proper hose management is critical in any high-performance fuel or coolant system, and these XRP tube sleeves eliminate connection failures before they start. By securing 3/8" tubing at critical junction points, you gain peace of mind knowing your lines...
    XRP981906-2
    SKU:
    XRP981906-2
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    981906-2
    Qty in Cart: 0
    Quantity:
    Price:
    $5.89
    Subtotal:
  • #6 Tube Nut 2 Pk  XRP981806-2

    XRP #6 Tube Nut 2 Pk XRP981806-2

    XRP-XTREME RACING PROD.

    $5.89
    Reliable tube nut connections are non-negotiable in high-performance fuel and fluid systems where vibration and pressure can compromise inferior fittings. These XRP #6 tube nuts deliver the precision fit and durability you need for consistent performance...
    XRP981806-2
    SKU:
    XRP981806-2
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    981806-2
    Qty in Cart: 0
    Quantity:
    Price:
    $5.89
    Subtotal:
  • #4 Tube Sleeve  TXRHF-62004-BLK

    #4 Tube Sleeve HF-62004BLK

    TRIPLE X RACE COMPONENTS

    $2.49
    Precision fluid line connections are critical in high-performance racing applications, where even minor leaks can compromise system integrity and cost you race wins. This #4 tube sleeve delivers the secure, vibration-resistant fitting your fuel, coolant,...
    TXRHF-62004-BLK
    SKU:
    TXRHF-62004-BLK
    Availability:
    Ships Same Business Day
    Weight:
    0.16 LBS
    MFG Part #:
    HF-62004BLK
    Qty in Cart: 0
    Quantity:
    Price:
    $2.49
    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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