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Gaskets and Seals

Gaskets and Seals

Gaskets and Seals

Circle Track Gaskets & Seals for SBC Engines & Rear Hubs at JJ Motorsports

Maintain peak performance and prevent leaks in your circle track racer with premium gaskets and seals from JJ Motorsports. Our selection includes head gaskets, valve cover gaskets, water pump gaskets, hub seals, and more, designed for late models, modifieds, street stocks, and IMCA dirt racing. Compatible with Small Block Chevy (SBC) engines and various rear hubs, these durable components ensure reliable sealing under high-pressure racing conditions.

Shop trusted brands like Fel-Pro and Moroso. Explore related categories such as circle track engines and components for power upgrades or circle track drivetrain for transmission enhancements.

Top Circle Track Gaskets and Seals Products

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
  • 12 Bolt Gasket For 4.75  FUE1GAS78

    Fuel Safe 12 Bolt Gasket For 4.75 1GAS78

    FUEL SAFE

    $31.99
    Keep your fuel cell sealed tight and leak-free with the Fuel Safe 12 Bolt Gasket — a simple but critical component that serious racers and builders trust to protect their setup. Designed specifically for 4.75" bolt circle fill plates, this gasket...
    FUE1GAS78
    SKU:
    FUE1GAS78
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    MFG Part #:
    1GAS78
    $31.99
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • Front Yoke Seal  FRKQC0150

    Front Yoke Seal QC0150

    FRANKLAND RACING

    $9.99
    A compromised yoke seal leads to fluid leakage, contamination, and premature drivetrain failure—especially critical in high-stress racing applications where reliability determines race outcomes. The Front Yoke Seal QC0150 delivers a precision-engineered...
    FRKQC0150
    SKU:
    FRKQC0150
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    QC0150
    $9.99
    Qty in Cart: 0
    Quantity:
    Price:
    $9.99
    Subtotal:
  • Grommet Seal 1.5in Dia. Blanked-Pointed FRG999412

    Fragola Grommet Seal 1.5in Dia. Blanked-Pointed 999412

    FRAGOLA

    $33.99
    A proper firewall grommet seal is critical for maintaining engine bay integrity and protecting wiring harnesses from heat damage and abrasion. The Fragola 1.5in blanked-pointed grommet delivers reliable sealing at a common penetration size, essential for...
    FRG999412
    SKU:
    FRG999412
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    999412
    Qty in Cart: 0
    Quantity:
    Price:
    $33.99
    Subtotal:
  • On Sale
    Replacement O-Rings #12 1-1/16 ID (10pk) FRG999113

    Fragola Replacement O-Rings #12 1-1/16 ID (10pk) 999113

    FRAGOLA

    MSRP: $11.99
    Now: $11.63
    Was: $11.99
    Viton O-rings are essential maintenance items for any high-performance fuel system, especially in forced induction or racing applications where heat and pressure cycles degrade seals over time. A 10-pack ensures you have spares on hand for immediate...
    FRG999113
    SKU:
    FRG999113
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    MFG Part #:
    999113
    MSRP: $11.99
    Now: $11.63
    Was: $11.99
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $11.99
    Now: $11.63
    Was: $11.99
    Subtotal:
  • 7/8 I.D O-Rings 10pk  FRG999112

    Fragola 7/8 I.D O-Rings 10pk 999112

    FRAGOLA

    $15.51
    Fragola O-rings are essential consumables for any high-performance fuel, coolant, or hydraulic system. Over time, Viton seals degrade from heat cycling and fluid exposure, leading to leaks that compromise system integrity and performance. Keep a spare...
    FRG999112
    SKU:
    FRG999112
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    999112
    $15.51
    Qty in Cart: 0
    Quantity:
    Price:
    $15.51
    Subtotal:
  • Viton O-Rings #6 10pk 9/16 I.D. FRG999110

    Fragola Viton O-Rings #6 10pk 9/16 I.D. 999110

    FRAGOLA

    $10.66
    Viton O-rings are the industry standard for high-performance fuel and fluid systems where temperature resistance and chemical compatibility matter. Whether you're building a custom fuel system, upgrading your forced-induction setup, or maintaining...
    FRG999110
    SKU:
    FRG999110
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    999110
    $10.66
    Qty in Cart: 0
    Quantity:
    Price:
    $10.66
    Subtotal:
  • On Sale
    O-Ring 7/16 I.D. (#4) 10-Pk FRG999109

    Fragola O-Ring 7/16 I.D. (#4) 10-Pk 999109

    FRAGOLA

    MSRP: $8.99
    Now: $8.72
    Was: $8.99
    Fragola O-rings are essential wear items for any high-performance fuel system or hydraulic application. Whether you're running a modified engine, race car, or precision fuel delivery system, quality seals prevent leaks that compromise performance and...
    FRG999109
    SKU:
    FRG999109
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    999109
    MSRP: $8.99
    Now: $8.72
    Was: $8.99
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8.99
    Now: $8.72
    Was: $8.99
    Subtotal:
  • O-Ring 3/8 I.D. (#3) 10-Pk FRG999108

    Fragola O-Ring 3/8 I.D. (#3) 10-Pk 999108

    FRAGOLA

    $8.72
    Fragola O-rings are essential consumables for any serious racer or tuner managing high-performance fuel and fluid systems. Viton construction delivers superior chemical resistance and durability across temperature extremes, ensuring reliable sealing over...
    FRG999108
    SKU:
    FRG999108
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    999108
    $8.72
    Qty in Cart: 0
    Quantity:
    Price:
    $8.72
    Subtotal:
  • Head Gasket Set (pair) 3021/351W FRDM6051-R351

    Ford Performance Head Gasket Set 302/351W up to 4.125" bore 0.040" thickness M-6051-R351

    FORD

    $103.99
    A head gasket failure can end your day at the track or leave you stranded on the street. The Ford Performance Head Gasket Set M-6051-R351 is engineered specifically for Small Block Ford 302 and 351 Windsor engines, delivering the reliable compression...
    FRDM6051-R351
    SKU:
    FRDM6051-R351
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    MFG Part #:
    M-6051-R351
    Qty in Cart: 0
    Quantity:
    Price:
    $103.99
    Subtotal:
  • Head Gasket Set SBF 302/351 FRDM6051-CP331

    Ford Performance 302/351 Head Gasket Set 4.00" Bore 0.040" Thickness M-6051-CP331

    FORD

    $173.99
    A proper head gasket seal is non-negotiable for engine reliability, especially in Small Block Ford applications where combustion pressures demand precision. This Ford Performance set delivers steel core laminate construction that maintains a consistent...
    FRDM6051-CP331
    SKU:
    FRDM6051-CP331
    Availability:
    Ships Same Business Day
    Weight:
    0.79 LBS
    MFG Part #:
    M-6051-CP331
    $173.99
    Qty in Cart: 0
    Quantity:
    Price:
    $173.99
    Subtotal:
  • 351 Big Bore Head Gasket (Pair) FRDM6051-B341

    Ford Performance 4.125" Big Bore 351 Head Gasket Set with Valve Pockets M-6051-B341

    FORD

    $88.99
    If you're building a 351 Ford Performance engine with a 4.125-inch overbore, combustion efficiency depends on precision sealing and optimized airflow—and this head gasket set delivers both. The bore flange valve pockets unshroud your intake and exhaust...
    FRDM6051-B341
    SKU:
    FRDM6051-B341
    Availability:
    Ships Same Business Day
    Weight:
    0.73 LBS
    MFG Part #:
    M-6051-B341
    Qty in Cart: 0
    Quantity:
    Price:
    $88.99
    Subtotal:
  • Head Gasket  FRDM6051-A302

    Ford Performance Cylinder Head Gasket 4.00" Bore 0.042" Thickness M-6051-A302

    FORD

    $80.99
    A properly sealed cylinder head is non-negotiable for Small Block Ford performance. This Ford Performance gasket delivers the compression sealing and thermal stability required to support high-RPM builds and forced induction applications. The steel core...
    FRDM6051-A302
    SKU:
    FRDM6051-A302
    Availability:
    Ships Same Business Day
    Weight:
    0.63 LBS
    MFG Part #:
    M-6051-A302
    $80.99
    Qty in Cart: 0
    Quantity:
    Price:
    $80.99
    Subtotal:
  • Pinion Oil Seal  FRDM4676-A111

    Ford Performance 9-inch Viton Pinion Oil Seal M-4676-A111

    FORD

    $15.99
    A degraded pinion seal is an open invitation for oil leaks and contamination that will compromise your entire drivetrain. This Ford Performance Viton® seal is engineered to withstand the extreme heat and speed of high-performance applications, keeping...
    FRDM4676-A111
    SKU:
    FRDM4676-A111
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    M-4676-A111
    Qty in Cart: 0
    Quantity:
    Price:
    $15.99
    Subtotal:
  • Timing Cover Gasket Set w/Sleeve SBF 221-351W FELTCS45168

    Fel-Pro Timing Cover Gasket Set w/Sleeve SBF 221-351W TCS 45168

    FEL-PRO

    $26.99
    A failing timing cover gasket can silently drain your engine oil and compromise your build's reliability—exactly what you can't afford on the track or in the shop. Fel-Pro's composite gasket set eliminates guesswork with OEM-equivalent sealing...
    FELTCS45168
    SKU:
    FELTCS45168
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    MFG Part #:
    TCS 45168
    $26.99
    Qty in Cart: 0
    Quantity:
    Price:
    $26.99
    Subtotal:
  • Fuel Pump Gasket  FEL6579

    Fel-Pro Fuel Pump Gasket 6579

    FEL-PRO

    $4.49
    A failing fuel pump gasket compromises your fuel system's integrity, risking leaks that can damage your engine and create safety hazards. The Fel-Pro 6579 is a direct replacement engineered to restore a reliable seal at your fuel pump mounting plate,...
    FEL6579
    SKU:
    FEL6579
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    MFG Part #:
    6579
    $4.49
    Qty in Cart: 0
    Quantity:
    Price:
    $4.49
    Subtotal:
  • Fuel Pump Gasket  FEL5182

    Fel-Pro Fuel Pump Gasket 5182

    FEL-PRO

    $2.49
    A worn or degraded fuel pump gasket compromises your fuel system's integrity, leading to leaks, fuel vapor loss, and potential performance issues. The Fel-Pro 5182 is a OEM-quality composite gasket engineered to seal your Small Block Chevy fuel pump...
    FEL5182
    SKU:
    FEL5182
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    MFG Part #:
    5182
    $2.49
    Qty in Cart: 0
    Quantity:
    Price:
    $2.49
    Subtotal:
  • Ford 302 SVO Teflon Rear Main Seal FEL2942RS

    Fel-Pro Ford 302 SVO Teflon Rear Main Seal 2942 RS

    FEL-PRO

    $24.99
    Rear main seal leaks are a common failure point in high-mileage 302 SVO engines, leading to oil loss, engine bay contamination, and potential bearing damage if left unaddressed. The Fel-Pro 2942 RS uses a PTFE-coated design to provide superior sealing...
    FEL2942RS
    SKU:
    FEL2942RS
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    MFG Part #:
    2942 RS
    $24.99
    Qty in Cart: 0
    Quantity:
    Price:
    $24.99
    Subtotal:
  • Ford 302 1 PC. Teflon Main Seal FEL2941

    Fel-Pro Ford 302 1 PC. Teflon Main Seal 2941

    FEL-PRO

    $40.99
    A leaking rear main seal is one of the most common sources of oil loss in classic Ford 302 engines—and one of the easiest to fix with the right part. The Fel-Pro 2941 is a proven OEM-quality replacement that seals reliably without requiring engine...
    FEL2941
    SKU:
    FEL2941
    Availability:
    Ships Same Business Day
    Weight:
    0.22 LBS
    MFG Part #:
    2941
    $40.99
    Qty in Cart: 0
    Quantity:
    Price:
    $40.99
    Subtotal:
  • 302 Ford Rear Main Seal 1-pc. FEL2922RS

    Fel-Pro 302 Ford Rear Main Seal 1-pc. 2922 RS

    FEL-PRO

    $23.99
    A failing rear main seal is a one-way ticket to oil leaks and engine damage. This Fel-Pro 302 Ford Rear Main Seal stops seepage at the source, protecting your crankshaft and keeping your Small Block Ford's oil where it belongs—inside the engine. Whether...
    FEL2922RS
    SKU:
    FEL2922RS
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    MFG Part #:
    2922 RS
    $23.99
    Qty in Cart: 0
    Quantity:
    Price:
    $23.99
    Subtotal:
  • SBF Rear Main Seal 1pc. 7/10/83-1993. FEL2921

    Fel-Pro SBF Rear Main Seal 1pc. 7/10/83-1993. 2921

    FEL-PRO

    $39.99
    A failing rear main seal is one of the most common culprits behind oil leaks on Small Block Ford engines—and ignoring it will cost you more in cleanup and potential engine damage than the seal itself. Fel-Pro's single-piece design eliminates the...
    FEL2921
    SKU:
    FEL2921
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    MFG Part #:
    2921
    $39.99
    Qty in Cart: 0
    Quantity:
    Price:
    $39.99
    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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