TC Remanufacturing GM14421 Automatic Transmission Torque Converter
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TC Remanufacturing

TC Remanufacturing GM14421 Automatic Transmission Torque Converter

Brand TC Remanufacturing GM14421
Bolt Circle 9.250
Converter Codes 24263354
Converter Diameter 10.870
Fitment Note 24 spline count
Grade Type Standard replacement
Hub Type Flats/step/flanged
Lock Up Type Yes
Mounting Thread Size 10mm x 1.5
Mounting Type 3 pads stepped
Pilot Diameter 0.824
Pilot Length 0.847
Spline Count 24
Stall Low
Transmission Codes 6t30, 6t35, 6t40, 6t45
Fits Buick and Chevrolet · 34 vehicles

Standard replacement. A direct-fit torque converter for routine service replacement.

Lock-up design. Helps maintain efficient power transfer during cruising.

24-spline hub. Built with a stepped, flanged hub for precise engagement.

$440.76Free shipping
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Automatic Transmission Torque Converter

TC Remanufacturing GM14421 is a standard replacement automatic transmission torque converter built for GM 6T30, 6T35, 6T40, and 6T45 applications. It features a 24 spline count, lock-up design, low stall calibration, and a 10.870-inch converter diameter for direct-fit service on listed Buick and Chevrolet vehicles.

Key Features

  • Part number: GM14421
  • Automatic transmission torque converter, standard replacement grade
  • Lock-up type: Yes
  • Low stall converter for OE-style drivability
  • 24 spline count with flats/step/flanged hub type
  • 10.870-inch converter diameter
  • Bolt circle: 9.250
  • Mounting type: 3 pads stepped
  • Mounting thread size: 10mm x 1.5
  • Pilot diameter: 0.824; pilot length: 0.847
  • Converter code: 24263354

Detailed Description

This TC Remanufacturing torque converter is built for vehicles using GM 6T30, 6T35, 6T40, and 6T45 transmissions. The GM14421 part number is a useful reference when sourcing a replacement torque converter for a Buick Encore, Chevrolet Trax, Chevrolet Malibu, Chevrolet Impala, Chevrolet Equinox, or Buick Verano with the correct 24 spline configuration. Its lock-up design and low stall specification support smooth engagement characteristics in everyday driving.

Compatible vehicle coverage includes Fits 2013-2019 Buick Encore, N/A; Fits 2018-2019 Chevrolet Equinox, N/A; Fits 2015-2019 Chevrolet Trax, N/A; Fits 2014-2018 Chevrolet Impala, N/A; Fits 2016-2018 Chevrolet Malibu, N/A; Fits 2008-2014 Chevrolet Malibu, N/A; and Fits 2012-2016 Buick Verano, N/A. Use the listed transmission codes and spline count to confirm application before ordering. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

  • Torque converter shudder during lock-up operation
  • Delayed or inconsistent engagement from a worn converter
  • Transmission slip related to internal converter wear
  • Excessive vibration or drivability issues under load
  • Fluid contamination caused by converter failure

Installation Notes and Tips

Verify the transmission code, spline count, bolt circle, and mounting style before installation. Confirm the 24 spline count and 10mm x 1.5 mounting thread size match the original unit. Inspect the transmission cooler and lines for debris or contamination, and flush the system as needed before installing the replacement converter. Always follow the vehicle service procedure for proper converter seating and fluid fill.

Quality Assurance

TC Remanufacturing supplies remanufactured drivetrain components for service replacement use. GM14421 is specified as a standard replacement torque converter for the listed GM applications and is identified by converter code 24263354.

Related reading

This part fits 34 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2019BuickEncore1.4LL4Fitment Note:24 Spline Count
2019ChevroletEquinox1.5LL4Fitment Note:24 Spline Count
2019ChevroletTrax1.4LL4Fitment Note:24 Spline Count
2018BuickEncore1.4LL4Fitment Note:24 Spline Count
2018ChevroletEquinox1.5LL4Fitment Note:24 Spline Count
2018ChevroletImpala2.5LL4Fitment Note:24 Spline Count
2018ChevroletMalibu1.5LL4Fitment Note:24 Spline Count
2018ChevroletTrax1.4LL4Fitment Note:24 Spline Count
2017BuickEncore1.4LL4Fitment Note:24 Spline Count
2017ChevroletImpala2.5LL4Fitment Note:24 Spline Count
2017ChevroletMalibu1.5LL4Fitment Note:24 Spline Count
2017ChevroletTrax1.4LL4Fitment Note:24 Spline Count
2016BuickEncore1.4LL4Fitment Note:24 Spline Count
2016BuickVerano2.4LL4Fitment Note:24 Spline Count
2016ChevroletImpala2.5LL4Fitment Note:24 Spline Count
2016ChevroletMalibu1.5LL4Fitment Note:24 Spline Count
2016ChevroletTrax1.4LL4Fitment Note:24 Spline Count
2015BuickEncore1.4LL4Fitment Note:24 Spline Count
2015BuickVerano2.4LL4Fitment Note:24 Spline Count
2015ChevroletImpala2.5LL4Fitment Note:24 Spline Count
2015ChevroletTrax1.4LL4Fitment Note:24 Spline Count
2014BuickEncore1.4LL4Fitment Note:24 Spline Count
2014BuickVerano2.4LL4Fitment Note:24 Spline Count
2014ChevroletImpala2.4LL4Fitment Note:24 Spline Count
2014ChevroletMalibu2.5LL4Fitment Note:24 Spline Count
2013BuickEncore1.4LL4Fitment Note:24 Spline Count
2013BuickVerano2.4LL4Fitment Note:24 Spline Count
2013ChevroletMalibu2.4LL4Fitment Note:24 Spline Count
2012BuickVerano2.4LL4Fitment Note:24 Spline Count
2012ChevroletMalibu2.4LL4Fitment Note:24 Spline Count
2011ChevroletMalibu2.4LL4Fitment Note:24 Spline Count
2010ChevroletMalibu2.4LL4Fitment Note:24 Spline Count
2009ChevroletMalibu2.4LL4Fitment Note:24 Spline Count
2008ChevroletMalibu2.2LL4Fitment Note:24 Spline Count