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Engine Fastener Kits

Engine Fastener Kits

Engine Fastener Kits

Circle Track Engine Fastener Kits at JJ Motorsports

Engine fasteners are precision-crafted to securely connect vital engine parts, like camshafts and carburetors, for peak performance under pressure. These durable options are indispensable for maintaining a powerful and reliable engine setup alongside other durable fastener solutions.

Shop trusted brands like Allstar Performance, Wehrs Machine, MSD Ignition, Moroso, Chevrolet Performance, Dart, Comp Cams. Explore related categories such as Exhaust Manifold/Header Fastener Kits, Rocker Arm Fastener Kits, Valve Cover Fastener Kits, Cylinder Head Fastener Kits, Carburetor Fastener Kits.

Top Circle Track Engine Fastener Kits

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
  • Mounting Bolt - 7/16 x 2.000 YTRYT6088

    Mounting Bolt - 7/16 x 2.000 YTRYT6088

    YELLA TERRA

    $4.99
    Rocker Arm Bolt7/16-14 in Thread2 in LongSteelYella TerraEach
    YTRYT6088
    SKU:
    YTRYT6088
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    YT6088
    $4.99
    Qty in Cart: 0
    Quantity:
    Price:
    $4.99
    Subtotal:
  • Carburetor Studs  TRA2106

    Carburetor Studs 2106

    TRANS-DAPT

    $5.99
    Carburetor Stud5/16-18 and 5/16-24 in Thread3.000 in LongHex NutsSteelZinc OxideSet of 4
    TRA2106
    SKU:
    TRA2106
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    MFG Part #:
    2106
    $5.99
    Qty in Cart: 0
    Quantity:
    Price:
    $5.99
    Subtotal:
  • Carburetor Studs  TRA2047

    Carburetor Studs 2047

    TRANS-DAPT

    $5.99
    Carburetor Stud5/16-18 and 5/16-24 in Thread2.000 in LongHex NutsSteelZinc OxideSet of 4
    TRA2047
    SKU:
    TRA2047
    Availability:
    Ships Same Business Day
    Weight:
    0.22 LBS
    MFG Part #:
    2047
    $5.99
    Qty in Cart: 0
    Quantity:
    Price:
    $5.99
    Subtotal:
  • Carburetor Studs  TRA2046

    Carburetor Studs 2046

    TRANS-DAPT

    $5.99
    Carburetor Stud5/16-18 and 5/16-24 in Thread1.375 in LongHex NutsSteelZinc OxideSet of 4
    TRA2046
    SKU:
    TRA2046
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    MFG Part #:
    2046
    $5.99
    Qty in Cart: 0
    Quantity:
    Price:
    $5.99
    Subtotal:
  • Starter Accessory Pack Bolts & Shims TIL54-950

    Starter Accessory Pack Bolts & Shims 54-950

    TILTON

    $11.90
    Starter Shim and Bolt Kit0.062 in ThickRound / Housing Shaped ShimsHardware IncludedTilton Super StartersKit
    TIL54-950
    SKU:
    TIL54-950
    Availability:
    Ships Same Business Day
    Weight:
    0.33 LBS
    MFG Part #:
    54-950
    $11.90
    Qty in Cart: 0
    Quantity:
    Price:
    $11.90
    Subtotal:
  • Snap Strap 6pk of 18in  THE13160

    Snap Strap 6pk of 18in 13160

    THERMO-TEC

    $22.17
    Exhaust Wrap TiesSnap Strap18 in LongStainlessSet of 6
    THE13160
    SKU:
    THE13160
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    13160
    $22.17
    Qty in Cart: 0
    Quantity:
    Price:
    $22.17
    Subtotal:
  • Snap Strap 12pk Of 9in  THE13150

    Snap Strap 12pk Of 9in 13150

    THERMO-TEC

    $33.76
    Exhaust Wrap TiesSnap Strap9 in LongStainlessSet of 12
    THE13150
    SKU:
    THE13150
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    MFG Part #:
    13150
    $33.76
    Qty in Cart: 0
    Quantity:
    Price:
    $33.76
    Subtotal:
  • Snap Strap Kit For V-8 Engines THE13101

    Snap Strap Kit For V-8 Engines 13101

    THERMO-TEC

    $37.33
    Exhaust Wrap TiesSnap Strap V8 KitEight 9 in TiesFour 18 in TiesStainlessKit
    THE13101
    SKU:
    THE13101
    Availability:
    Ships Same Business Day
    Weight:
    0.18 LBS
    MFG Part #:
    13101
    $37.33
    Qty in Cart: 0
    Quantity:
    Price:
    $37.33
    Subtotal:
  • 12pt Flange Bolt - Stand 7/16-14x1-1/2 TDM05225

    12pt Flange Bolt - Stand 7/16-14x1-1/2 5225

    T AND D MACHINE

    $4.99
    Rocker Arm Stand Bolt7/16-14 in Thread1-1/2 in Long12 Point HeadSteelEach
    TDM05225
    SKU:
    TDM05225
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    MFG Part #:
    05225*
    $4.99
    Qty in Cart: 0
    Quantity:
    Price:
    $4.99
    Subtotal:
  • Stand Bolt - 7/16-14 x 1.250 12pt TDM05220

    Stand Bolt - 7/16-14 x 1.250 12pt 5220

    T AND D MACHINE

    $3.99
    Rocker Arm Stand Bolt7/16-14 in Thread1-1/4 in Long12 Point HeadSteelEach
    TDM05220
    SKU:
    TDM05220
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    MFG Part #:
    5220
    $3.99
    Qty in Cart: 0
    Quantity:
    Price:
    $3.99
    Subtotal:
  • 12pt Flange Bolt - Stand 7/16-14 x 7/8 TDM05205

    12pt Flange Bolt - Stand 7/16-14 x 7/8 5205

    T AND D MACHINE

    $3.99
    Rocker Arm Stand Bolt7/16-14 in Thread7/8 in Long12 Point HeadSteelEach
    TDM05205
    SKU:
    TDM05205
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    MFG Part #:
    5205
    $3.99
    Qty in Cart: 0
    Quantity:
    Price:
    $3.99
    Subtotal:
  • 5/16 Hold Down Nut - 12pt. TDM05120

    5/16 Hold Down Nut - 12pt. 5120

    T AND D MACHINE

    $3.99
    Rocker Arm Nut5/16-24 in ThreadsSteelEach
    TDM05120
    SKU:
    TDM05120
    Availability:
    Ships Same Business Day
    Weight:
    0.01 LBS
    MFG Part #:
    5120
    $3.99
    Qty in Cart: 0
    Quantity:
    Price:
    $3.99
    Subtotal:
  • Shaft Bolt - 5/16-18 x 1.250 12pt. TDM05106

    Shaft Bolt - 5/16-18 x 1.250 12pt. 5106

    T AND D MACHINE

    $8.99
    Rocker Arm Shaft Bolt5/16-18 in Thread1-1/4 in Long12-Point HeadSteelEach
    TDM05106
    SKU:
    TDM05106
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    5106
    Qty in Cart: 0
    Quantity:
    Price:
    $8.99
    Subtotal:
  • 5/16 x 1.890 Hold Down Stud TDM05051

    5/16 x 1.890 Hold Down Stud 5051

    T AND D MACHINE

    $3.99
    Rocker Arm Hold Down Stud5/16-18/24 in Threads1.890 in LongSteelEach
    TDM05051
    SKU:
    TDM05051
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    5051
    $3.99
    Qty in Cart: 0
    Quantity:
    Price:
    $3.99
    Subtotal:
  • Rocker Arm Jam Nut - 7/16-20 12pt. TDM03210

    Rocker Arm Jam Nut - 7/16-20 12pt. 3210

    T AND D MACHINE

    $2.99
    Jam Nut7/16-20 in Thread12 Point HeadSteelBlack OxideRocker Arm AdjustersEach
    TDM03210
    SKU:
    TDM03210
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    MFG Part #:
    3210
    $2.99
    Qty in Cart: 0
    Quantity:
    Price:
    $2.99
    Subtotal:
  • Air Cleaner Stud 4130 5/16-18 SWE901-10150

    Sweet Air Cleaner Stud 4130 5/16-18 901-10150

    SWEET

    $42.99
    Air Cleaner Stud5/16-18 in Thread7.500 in LongNut IncludedChromolyNaturalKit
    SWE901-10150
    SKU:
    SWE901-10150
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    MFG Part #:
    901-10150
    $42.99
    Qty in Cart: 0
    Quantity:
    Price:
    $42.99
    Subtotal:
  • Pump Bolt Kit 30030-3003  SWE325-30037

    Sweet Pump Bolt Kit 30030-3003 325-30037

    SWEET

    $10.99
    Power Steering Bracket HardwarePump to BracketHead MountSmall Block ChevyKit
    SWE325-30037
    SKU:
    SWE325-30037
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    MFG Part #:
    325-30037
    $10.99
    Qty in Cart: 0
    Quantity:
    Price:
    $10.99
    Subtotal:
  • Poly Locks - 7/16 (4pk)  SPNPL716-4

    Poly Locks - 7/16 (4pk) PL716-4

    SCORPION PERFORMANCE

    $15.83
    Rocker Arm NutRace Series Polylock7/16-20 in ThreadSteelBlack OxideSet of 4
    SPNPL716-4
    SKU:
    SPNPL716-4
    Availability:
    Ships Same Business Day
    Weight:
    0.26 LBS
    MFG Part #:
    PL716-4
    $15.83
    Qty in Cart: 0
    Quantity:
    Price:
    $15.83
    Subtotal:
  • Poly Locks - 3/8 (4pk)  SPNPL38-4

    Poly Locks - 3/8 (4pk) PL38-4

    SCORPION PERFORMANCE

    $15.83
    Rocker Arm NutRace Series Polylock3/8-24 in ThreadSteelBlack OxideSet of 4
    SPNPL38-4
    SKU:
    SPNPL38-4
    Availability:
    Ships Same Business Day
    Weight:
    0.29 LBS
    MFG Part #:
    PL38-4
    $15.83
    Qty in Cart: 0
    Quantity:
    Price:
    $15.83
    Subtotal:
  • 7/16 Adjusting Nuts (4pk) SHPPL716K

    7/16 Adjusting Nuts (4pk) PL716K

    SHARP ROCKERS

    $32.99
    Rocker Arm NutPolylock7/16-20 in Thread0.600 in Shank Diameter1.120 in LongChromolyBlack OxideAluminum RockersSet of 4
    SHPPL716K
    SKU:
    SHPPL716K
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    MFG Part #:
    PL716K
    $32.99
    Qty in Cart: 0
    Quantity:
    Price:
    $32.99
    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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