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Automatic Transmissions and Components

Automatic Transmissions and Components

Automatic Transmissions and Components

Circle Track Automatic Transmissions & Components at JJ Motorsports

Elevate your circle track performance with automatic transmissions and components from JJ Motorsports. Offering seamless power delivery without manual shifts, these systems include flexplates, torque converters, clutches, and adapters tailored for high-speed racing in IMCA, USMTS, and dirt oval events, ensuring focus and reliability for late models, modifieds, and street stocks.

Shop trusted brands like Allstar Performance for SFI-certified flexplates, ATI Performance for high-stall converters, and TCI for transmission rebuild kits. Explore related categories such as Circle Track Flexplates and Components for engine connection upgrades or Circle Track Torque Converters and Components for stall speed optimization.

Top Circle Track Automatic Transmissions & Components

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
  • Chromoly Flexplate - SFI SBC 168T - Int. Balance PQX1835001

    Chromoly Flexplate - SFI SBC 168T - Int. Balance 1835001

    PRW INDUSTRIES, INC.

    $90.77
    If you're running a high-RPM small block Chevy or V6 engine with an automatic transmission, a quality flexplate is critical to reliability under load. This chromoly construction handles the demands of forced induction and sustained power delivery without...
    PQX1835001
    SKU:
    PQX1835001
    Availability:
    Ships Same Business Day
    Weight:
    7.19 LBS
    MFG Part #:
    1835001
    $90.77
    Qty in Cart: 0
    Quantity:
    Price:
    $90.77
    Subtotal:
  • Flexplate 153T SFI Internal Balance ALL26830

    Allstar Performance Flexplate 153T SFI Internal Balance ALL26830

    ALLSTAR PERFORMANCE

    $65.99
    When it comes to building a reliable, race-ready Small Block Chevy, every component matters — and the Allstar Performance ALL26830 Flexplate delivers the strength and precision you need to keep your drivetrain running smooth and safe. Built to SFI 29.1...
    ALL26830
    SKU:
    ALL26830
    Availability:
    Ships Same Business Day
    Weight:
    5.26 LBS
    MFG Part #:
    ALL26830
    $65.99
    Qty in Cart: 0
    Quantity:
    Price:
    $65.99
    Subtotal:
  • Flexplate 168T SFI Internal Balance ALL26800

    Allstar Performance Flexplate 168T SFI Internal Balance ALL26800

    ALLSTAR PERFORMANCE

    $89.99
    When it comes to high-performance builds, you can't afford to cut corners on critical drivetrain components. The Allstar Performance ALL26800 Flexplate delivers rock-solid reliability and SFI-certified safety, making it a go-to choice for racers and...
    ALL26800
    SKU:
    ALL26800
    Availability:
    Ships Same Business Day
    Weight:
    6.49 LBS
    MFG Part #:
    ALL26800
    $89.99
    Qty in Cart: 0
    Quantity:
    Price:
    $89.99
    Subtotal:
  • flexplate kit - sfi - gm ls series 168-tooth 915733

    ATI Flexplate Kit - SFI - GM LS Series 168-Tooth 915733

    ATI PERFORMANCE

    $338.99
    A flexplate is the critical link between your transmission and engine—get the wrong one, and you're looking at vibration, slippage, and catastrophic failure. The ATI Flexplate Kit ensures rock-solid engagement with your GM LS engine and transmission,...
    ATI915733
    SKU:
    ATI915733
    Availability:
    Ships Same Business Day
    Weight:
    8.95 LBS
    $338.99
    Qty in Cart: 0
    Quantity:
    Price:
    $338.99
    Subtotal:
  • sbc 168 tooth flexplate - sfi - int. balance 915541

    ATI SBC 168 Tooth Flexplate - SFI - Int. Balance 915541

    ATI PERFORMANCE

    $218.99
    A flexplate is the critical link between your engine and transmission—it needs to be reliable, balanced, and built to handle the demands of serious performance driving. The ATI SBC 168 Tooth Flexplate delivers the durability and precision required for...
    ATI915541
    SKU:
    ATI915541
    Availability:
    Ships Same Business Day
    Weight:
    7.40 LBS
    $218.99
    Qty in Cart: 0
    Quantity:
    Price:
    $218.99
    Subtotal:
  • converter 350/400 2000-2200 stall all26908

    Allstar Performance Converter 350/400 2000-2200 Stall ALL26908

    ALLSTAR PERFORMANCE

    $266.99
    A properly matched torque converter is essential for maximizing acceleration and drivability in TH350 and TH400-equipped vehicles. This Allstar converter's 2000-2200 RPM stall range delivers crisp throttle response and improved launch characteristics...
    ALL26908
    SKU:
    ALL26908
    Availability:
    Ships Same Business Day
    Weight:
    33.10 LBS
    $266.99
    Qty in Cart: 0
    Quantity:
    Price:
    $266.99
    Subtotal:
  • converter 350/400 2200-2600 stall all26906

    Allstar Performance Converter 350/400 2200-2600 Stall ALL26906

    ALLSTAR PERFORMANCE

    $259.99
    A torque converter is the unsung hero of any automatic transmission setup—it directly impacts how efficiently your engine delivers power to the wheels off the line. The Allstar Performance ALL26906 delivers a 2200-2600 RPM stall range that maximizes...
    ALL26906
    SKU:
    ALL26906
    Availability:
    Ships Same Business Day
    Weight:
    33.80 LBS
    $259.99
    Qty in Cart: 0
    Quantity:
    Price:
    $259.99
    Subtotal:
  • converter 350/400 3500+ stall all26904

    Allstar Performance Converter 350/400 3500+ Stall ALL26904

    ALLSTAR PERFORMANCE

    $359.99
    A proper stall converter is essential for extracting the full potential from your TH350 or TH400 transmission, especially if you've added power through forced induction or built engine modifications. The Allstar Performance 3500+ stall converter ensures...
    ALL26904
    SKU:
    ALL26904
    Availability:
    Ships Same Business Day
    Weight:
    23.43 LBS
    $359.99
    Qty in Cart: 0
    Quantity:
    Price:
    $359.99
    Subtotal:
  • converter 350/400 3200-3500 stall all26902

    Allstar Performance Converter 350/400 3200-3500 Stall ALL26902

    ALLSTAR PERFORMANCE

    $339.99
    A properly matched torque converter is critical to unlocking your transmission's full potential—without it, you're leaving power on the table and risking inefficient power delivery. The Allstar Performance 3200-3500 stall converter is engineered for...
    ALL26902
    SKU:
    ALL26902
    Availability:
    Ships Same Business Day
    Weight:
    23.40 LBS
    $339.99
    Qty in Cart: 0
    Quantity:
    Price:
    $339.99
    Subtotal:
  • converter 350/400 2700-3000 stall all26900

    Allstar Performance Converter 350/400 2700-3000 Stall ALL26900

    ALLSTAR PERFORMANCE

    $349.99
    A torque converter's stall speed directly impacts how much engine RPM you need before the transmission engages—too low and you're leaving power on the table; too high and you'll overheat the fluid and damage the unit. The Allstar Performance 2700-3000...
    ALL26900
    SKU:
    ALL26900
    Availability:
    Ships Same Business Day
    Weight:
    23.35 LBS
    $349.99
    Qty in Cart: 0
    Quantity:
    Price:
    $349.99
    Subtotal:
  • Flex Plate SBC Ext Bal 153 Tooth 1pc Rear Main WIN62866

    Winters Flex Plate Small Block Chevy 153 Tooth External Balance 1-Piece Rear Main WIN62866

    WINTERS

    $91.99
    If you're running a Small Block Chevy with external balancing, you need a flex plate that matches your engine's exact specifications—mismatched components lead to vibration, premature wear, and costly rebuilds. The Winters 153-tooth flex plate is...
    WIN62866
    SKU:
    WIN62866
    Availability:
    Ships Same Business Day
    Weight:
    5.06 LBS
    $91.99
    Qty in Cart: 0
    Quantity:
    Price:
    $91.99
    Subtotal:
  • FLexplate SFI 168 Tooth GM LS Internal Balance TCI399853

    FLexplate SFI 168 Tooth GM LS Internal Balance 399853

    TCI

    $519.95
    A flexplate is the critical link between your engine and transmission—and a worn or damaged unit will cause vibration, noise, and potential drivetrain failure. This SFI-certified flexplate is engineered for GM LS-series engines and delivers the precision...
    TCI399853
    SKU:
    TCI399853
    Availability:
    Ships Same Business Day
    Weight:
    10.00 LBS
    $519.95
    Qty in Cart: 0
    Quantity:
    Price:
    $519.95
    Subtotal:
  • SBF Flexplate SFI 164 Tooth Internal Balance SCAFP-302N-SFI

    SBF Flexplate SFI 164 Tooth Internal Balance FP-302N-SFI

    SCAT ENTERPRISES

    $79.99
    A quality flexplate is critical to reliable engine startup and smooth power delivery from your Small Block Ford to the transmission. The SBF Flexplate SFI 164 Tooth Internal Balance is engineered with precision tolerances and SFI certification, ensuring...
    SCAFP-302N-SFI
    SKU:
    SCAFP-302N-SFI
    Availability:
    Ships Same Business Day
    Weight:
    8.00 LBS
    $79.99
    Qty in Cart: 0
    Quantity:
    Price:
    $79.99
    Subtotal:
  • Flexplate Spacer Shims SBF 302/351 5pk QTMRM-943

    Flexplate Spacer Shims SBF 302/351 5pk RM-943

    QUICK TIME

    $29.15
    Flexplate runout and crankshaft harmonics directly impact engine reliability and driveline longevity—this shim kit lets you dial in precise spacing to eliminate excessive play between your flexplate and crankshaft. Whether you're troubleshooting...
    QTMRM-943
    SKU:
    QTMRM-943
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    $29.15
    Qty in Cart: 0
    Quantity:
    Price:
    $29.15
    Subtotal:
  • Flexplate Spacer Shims GM 74-85 5pk QTMRM-935

    Flexplate Spacer Shims GM 74-85 5pk RM-935

    QUICK TIME

    $78.35
    Flexplate runout and misalignment are common culprits behind vibration, noise, and premature wear on your transmission and engine block. This 5-piece shim kit lets you dial in precise clearance between your flexplate and crankshaft, eliminating the...
    QTMRM-935
    SKU:
    QTMRM-935
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $78.35
    Subtotal:
  • SBC 153 Tooth Flexplate Lightweight 1-Piece RM QTMRM-930

    SBC 153 Tooth Flexplate Lightweight 1-Piece RM RM-930

    QUICK TIME

    $243.95
    If you're building a Small Block Chevy engine for the track or street, choosing the right flexplate directly impacts your driveline reliability and overall system balance. A lightweight, internally balanced flexplate reduces rotational mass and improves...
    QTMRM-930
    SKU:
    QTMRM-930
    Availability:
    Ships Same Business Day
    Weight:
    3.15 LBS
    $243.95
    Qty in Cart: 0
    Quantity:
    Price:
    $243.95
    Subtotal:
  • Crank Adapter Sleeve SBF to GM Transmission PQX1800302

    Crank Adapter Sleeve SBF to GM Transmission 1800302

    PRW INDUSTRIES, INC.

    $23.43
    If you're adapting a GM torque converter to a Small Block Ford crankshaft, this sleeve is a non-negotiable component for a solid mechanical interface. A precision-fit adapter ensures proper converter engagement, eliminates runout, and prevents...
    PQX1800302
    SKU:
    PQX1800302
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    $23.43
    Qty in Cart: 0
    Quantity:
    Price:
    $23.43
    Subtotal:
  • 153 Tooth SFI Flexplate Int. Balance PIO871012

    153 Tooth SFI Flexplate Int. Balance 871012

    PIONEER

    $223.99
    A flexplate is a critical component that bridges your engine and transmission—it must be engineered to withstand extreme rotational forces without failure. This 153-tooth SFI-certified flexplate delivers the durability and precision required for...
    PIO871012
    SKU:
    PIO871012
    Availability:
    Ships Same Business Day
    Weight:
    5.16 LBS
    $223.99
    Qty in Cart: 0
    Quantity:
    Price:
    $223.99
    Subtotal:
  • 168 Tooth SFI Flexplate Int. Balance PIO871011

    168 Tooth SFI Flexplate Int. Balance 871011

    PIONEER

    $125.99
    A flexplate is critical to your engine's reliability and starter engagement—cheap components fail under load and cause costly downtime. This 168-tooth SFI-certified flexplate delivers the precision balance and durability required for high-performance...
    PIO871011
    SKU:
    PIO871011
    Availability:
    Ships Same Business Day
    Weight:
    6.75 LBS
    $125.99
    Qty in Cart: 0
    Quantity:
    Price:
    $125.99
    Subtotal:
  • 168 Tooth SFI Flexplate  PIO871001

    168 Tooth SFI Flexplate 871001

    PIONEER

    $88.99
    If you're running a high-performance Chevy V8 with an automatic transmission, your flexplate is working hard every time you hit the throttle. A worn or damaged flexplate compromises torque transfer, creates vibration, and can leave you stranded. The 168...
    PIO871001
    SKU:
    PIO871001
    Availability:
    Ships Same Business Day
    Weight:
    6.73 LBS
    $88.99
    Qty in Cart: 0
    Quantity:
    Price:
    $88.99
    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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