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TC Remanufacturing B21FLHB Automatic Transmission Torque ConverterOE Quality 60-Day Returns
Part #: B21FLHB

TC Remanufacturing B21FLHB Automatic Transmission Torque Converter

240 vehicles fit this part
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Fitment: Pontiac, Chevrolet, Buick, and Oldsmobile, G6, Malibu, LaCrosse, Rendezvous, Grand Prix, Impala, Uplander, Park Avenue, Regal, Montana, Alero, Grand Am, Venture, LeSabre, Lumina, Monte Carlo, 88, LSS, Silhouette, Trans Sport, Regency, Bonneville, Century, Riviera, 98, Lumina APV, Cutlass Cruiser, Cutlass Supreme, Toronado, Reatta, Cutlass Ciera, 6000, Electra, and Delta 88
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Not what you need? See all Automatic Transmission Torque Converter options

Reliable Automatic Transmission Torque Converter for GM Vehicles

The TC Remanufacturing B21FLHB automatic transmission torque converter is engineered for select Buick, Chevrolet, Oldsmobile, Pontiac, and Saturn models. Designed to meet specific OEM specifications, this lock-up torque converter offers consistent performance and durability for vehicles requiring a 10.2-inch diameter converter.

  • Compatible with Buick, Chevrolet, Oldsmobile, Pontiac, and Saturn models including Alero, Bonneville, Grand Prix, Impala, and more
  • Lock-up converter type with carbon woven friction material for improved efficiency
  • 10.200-inch converter diameter and 9.500-inch bolt circle for precise fitment
  • 27 spline count with bushing hub type and 3-pad mounting for secure installation
  • Stall speed range between 1500-1750 rpm optimized for smooth engagement

Technical Specifications and Features

The B21FLHB torque converter features a lock-up design that helps reduce slippage and improve fuel efficiency by mechanically linking the engine to the transmission under certain conditions. Its carbon woven friction type enhances durability and heat resistance, which is critical for maintaining consistent performance in automatic transmissions. The 9.500-inch bolt circle and 10.200-inch diameter ensure compatibility with specific GM transmission assemblies. The 27 spline count and bushing hub type provide a reliable connection to the transmission input shaft, while the 3-pad mounting type secures the converter firmly in place. The pilot diameter of 0.825 inches supports proper alignment during installation. This torque converter does not include a ring gear and is designed to operate within a stall speed range of 1500 to 1750 rpm, suitable for a variety of driving conditions.

Compatible Vehicle Applications

This torque converter is compatible with a range of GM vehicles, including but not limited to:

  • Buick models such as Century, LeSabre, and Regal
  • Chevrolet models including Impala, Malibu, Monte Carlo, and Lumina
  • Oldsmobile models like Cutlass Ciera, Cutlass Supreme, and 88 series
  • Pontiac models such as Grand Am, Grand Prix, and G6
  • Saturn models including Vue and L-Series

Common Issues Addressed by This Torque Converter

  • Transmission slipping or delayed engagement
  • Overheating due to inefficient torque transfer
  • Shuddering or vibration during lock-up
  • Poor fuel economy related to torque converter inefficiency
  • Excessive stall speed causing drivability problems

Installation Notes and Tips

Ensure the torque converter is properly seated on the transmission input shaft before installation to avoid damage. Verify the bolt circle and spline count match the vehicle’s transmission specifications. Use the correct torque specifications for mounting bolts and inspect the flexplate for wear or damage. It is recommended to replace transmission fluid and filter during installation to maintain optimal performance.

Quality Assurance and Warranty

TC Remanufacturing torque converters undergo rigorous remanufacturing processes to meet or exceed OEM standards. Each unit is tested for balance, stall speed, and lock-up function to ensure reliability. The B21FLHB part number is backed by a limited warranty covering defects in materials and workmanship, providing confidence in product quality.

BrandTC Remanufacturing
Part NumberB21FLHB
Bolt Circle9.500
Converter Codes24212743, 24222019, 24222784, 24222789, 24224255, 24227094, FG, FGHB, FGKB, FL, FLHB, FLQB, FM
Converter Diameter10.200
Converter TypeLock Up
Friction TypeCarbon Woven
Hub TypeBushing
Mounting Type3 Pads
Pilot Diameter0.825
Ring GearNo
Spline Count27
Stall1500-1750 RPM

This part fits 240 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2010PontiacG63.5LV6N/A
2009PontiacG63.9LV6N/A
2009PontiacG63.5LV6N/A
2008PontiacG63.9LV6N/A
2008PontiacG63.5LV6N/A
2007ChevroletMalibu3.5LV6N/A
2007PontiacG63.9LV6N/A
2007PontiacG63.5LV6N/A
2006BuickLaCrosse3.8LV6N/A
2006BuickRendezvous3.5LV6N/A
2006ChevroletMalibu3.5LV6N/A
2006PontiacG63.5LV6N/AFitment Note:9.5" Inch Bolt Circle, Bushing Hub, FLHB Converter Code
2006PontiacGrand Prix3.8LV6N/A
2006SaturnVue3.5LV6N/AFitment Note:9.5" Inch Bolt Circle, Bushing Hub, FLHB Converter Code
2005BuickLaCrosse3.8LV6N/A
2005BuickRendezvous3.4LV6N/A
2005ChevroletImpala3.8LV6N/A
2005ChevroletMalibu3.5LV6N/A
2005ChevroletUplander3.5LV6N/A
2005PontiacGrand Prix3.8LV6N/A
2004BuickPark Avenue3.8LV6N/A
2004BuickRegal3.8LV6N/A
2004BuickRendezvous3.4LV6N/A
2004ChevroletImpala3.8LV6N/A
2004ChevroletMalibu3.5LV6N/A
2004PontiacGrand Prix3.8LV6N/A
2003BuickRendezvous3.4LV6N/A
2003ChevroletImpala3.8LV6N/A
2003PontiacGrand Prix3.8LV6N/A
2003PontiacGrand Prix3.1LV6N/A
2003PontiacMontana3.4LV6N/A
2002BuickRegal3.8LV6N/A
2002BuickRendezvous3.4LV6N/A
2002ChevroletImpala3.8LV6N/A
2002OldsmobileAlero3.4LV6N/A
2002PontiacGrand Am3.4LV6N/A
2002PontiacGrand Prix3.8LV6N/A
2002PontiacMontana3.4LV6N/A
2001ChevroletImpala3.8LV6N/A
2001OldsmobileAlero3.4LV6N/A
2001PontiacGrand Prix3.8LV6N/A
2000BuickPark Avenue3.8LV6N/A
2000BuickRegal3.8LV6N/A
2000ChevroletImpala3.8LV6N/A
2000OldsmobileAlero3.4LV6N/A
2000PontiacGrand Prix3.1LV6N/A
2000PontiacGrand Prix3.8LV6N/A
1999BuickLeSabre3.8LV6N/A
1999ChevroletLumina3.8LV6N/A
1999ChevroletMonte Carlo3.8LV6N/A
1999Oldsmobile883.8LV6N/A
1999OldsmobileAlero3.4LV6N/A
1999OldsmobileLSS3.8LV6N/A
1999PontiacGrand Am3.4LV6N/A
1999PontiacGrand Prix3.8LV6N/A
1999PontiacGrand Prix3.1LV6N/A
1999PontiacMontana3.4LV6N/A
1998BuickLeSabre3.8LV6N/A
1998ChevroletLumina3.8LV6N/A
1998ChevroletMonte Carlo3.8LV6N/A
1998Oldsmobile883.8LV6N/A
1998OldsmobileLSS3.8LV6N/A
1998OldsmobileSilhouette3.4LV6N/A
1998PontiacGrand Prix3.8LV6N/A
1998PontiacGrand Prix3.1LV6N/A
1998PontiacTrans Sport3.4LV6N/A
1997BuickLeSabre3.8LV6N/A
1997BuickRegal3.8LV6N/A
1997Oldsmobile883.8LV6N/A
1997OldsmobileRegency3.8LV6N/A
1997PontiacBonneville3.8LV6N/A
1997PontiacGrand Prix3.8LV6N/A
1997PontiacGrand Prix3.1LV6N/A
1997PontiacTrans Sport3.4LV6N/A
1996BuickCentury3.1LV6N/A
1996BuickLeSabre3.8LV6N/A
1996BuickPark Avenue3.8LV6N/A
1996BuickRegal3.8LV6N/A
1996BuickRiviera3.8LV6N/A
1996Oldsmobile883.8LV6N/A
1996Oldsmobile983.8LV6N/A
1996PontiacBonneville3.8LV6N/A
1996PontiacGrand Am3.1LV6N/A
1996PontiacGrand Prix3.4LV6N/A
1996PontiacTrans Sport3.4LV6N/A
1995BuickCentury3.1LV6N/A
1995BuickLeSabre3.8LV6N/A
1995BuickPark Avenue3.8LV6N/A
1995BuickRegal3.8LV6N/A
1995BuickRiviera3.8LV6N/A
1995ChevroletLumina APV3.8LV6N/A
1995Oldsmobile883.8LV6N/A
1995Oldsmobile983.8LV6N/A
1995PontiacBonneville3.8LV6N/A
1995PontiacGrand Am3.1LV6N/A
1995PontiacGrand Prix3.4LV6N/A
1995PontiacTrans Sport3.8LV6N/A
1995PontiacTrans Sport3.1LV6N/A
1994BuickCentury3.1LV6N/A
1994BuickLeSabre3.8LV6N/A
1994BuickPark Avenue3.8LV6N/A
1994BuickRegal3.8LV6N/A
1994ChevroletLumina APV3.8LV6N/A
1994Oldsmobile883.8LV6N/A
1994Oldsmobile983.8LV6N/A
1994PontiacBonneville3.8LV6N/A
1994PontiacGrand Am3.1LV6N/A
1994PontiacGrand Prix3.4LV6N/A
1994PontiacTrans Sport3.8LV6N/A
1994PontiacTrans Sport3.1LV6N/A
1993BuickCentury3.3LV6N/A
1993BuickLeSabre3.8LV6N/A
1993BuickPark Avenue3.8LV6N/A
1993BuickRegal3.8LV6N/A
1993BuickRiviera3.8LV6N/A
1993ChevroletLumina APV3.8LV6N/A
1993Oldsmobile883.8LV6N/A
1993Oldsmobile983.8LV6N/A
1993OldsmobileCutlass Cruiser3.3LV6N/A
1993OldsmobileSilhouette3.8LV6N/A
1993PontiacBonneville3.8LV6N/A
1993PontiacGrand Am3.3LV6N/A
1993PontiacTrans Sport3.8LV6N/A
1993PontiacTrans Sport3.1LV6N/A
1992BuickCentury3.3LV6N/A
1992BuickLeSabre3.8LV6N/A
1992BuickPark Avenue3.8LV6N/A
1992BuickRegal3.8LV6N/A
1992BuickRiviera3.8LV6N/A
1992ChevroletLumina APV3.8LV6N/A
1992Oldsmobile883.8LV6N/A
1992Oldsmobile983.8LV6N/A
1992OldsmobileCutlass Cruiser3.3LV6N/A
1992OldsmobileCutlass Supreme3.4LV6N/A
1992OldsmobileSilhouette3.8LV6N/A
1992OldsmobileToronado3.8LV6N/A
1992PontiacBonneville3.8LV6N/A
1992PontiacGrand Prix3.4LV6N/A
1992PontiacGrand Prix3.1LV6N/A
1992PontiacTrans Sport3.8LV6N/A
1992PontiacTrans Sport3.1LV6N/A
1991BuickCentury3.3LV6N/A
1991BuickLeSabre3.8LV6N/A
1991BuickPark Avenue3.8LV6N/A
1991BuickReatta3.8LV6N/A
1991BuickRegal3.8LV6N/A
1991BuickRiviera3.8LV6N/A
1991Oldsmobile983.8LV6N/A
1991OldsmobileCutlass Ciera3.3LV6N/A
1991OldsmobileCutlass Cruiser3.3LV6N/A
1991OldsmobileCutlass Supreme3.4LV6N/A
1991OldsmobileToronado3.8LV6N/A
1991Pontiac60003.1LV6N/A
1991PontiacBonneville3.8LV6N/AFitment Note:9.5" Inch Bolt Circle, Bushing Hub, FLHB Converter Code
1991PontiacGrand Prix3.4LV6N/A
1991PontiacGrand Prix3.1LV6N/A
1990BuickCentury3.3LV6N/A
1990BuickLeSabre3.8LV6N/A
1990BuickReatta3.8LV6N/A
1990BuickRegal3.8LV6N/A
1990BuickRiviera3.8LV6N/A
1990OldsmobileCutlass Ciera3.3LV6N/A
1990OldsmobileCutlass Cruiser3.3LV6N/A
1990OldsmobileToronado3.8LV6N/A
1990Pontiac60003.1LV6N/A
1990PontiacBonneville3.8LV6N/AFitment Note:9.5" Inch Bolt Circle, Bushing Hub, FLHB Converter Code
1990PontiacGrand Prix3.1LV6N/A
1989BuickCentury3.3LV6N/A
1989BuickCentury2.8LV6N/A
1989BuickLeSabre3.8LV6N/A
1989BuickReatta3.8LV6N/A
1989BuickRiviera3.8LV6N/A
1989OldsmobileCutlass Ciera2.8LV6N/A
1989OldsmobileToronado3.8LV6N/A
1989Pontiac60002.8LV6N/A
1989Pontiac60003.1LV6N/A
1989PontiacBonneville3.8LV6N/AFitment Note:9.5" Inch Bolt Circle, Bushing Hub, FLHB Converter Code
1989PontiacGrand Prix3.1LV6N/A
1989PontiacGrand Prix2.8LV6N/A
1988BuickCentury3.8LV6N/A
1988BuickCentury2.8LV6N/A
1988BuickLeSabre3.8LV6N/A
1988BuickReatta3.8LV6N/A
1988BuickRiviera3.8LV6N/A
1988Oldsmobile983.8LV6N/A
1988OldsmobileCutlass Ciera3.8LV6N/A
1988OldsmobileCutlass Ciera2.8LV6N/A
1988OldsmobileDelta 883.8LV6N/A
1988OldsmobileToronado3.8LV6N/A
1988Pontiac60003.1LV6N/A
1988Pontiac60002.8LV6N/A
1988PontiacBonneville3.8LV6N/AFitment Note:9.5" Inch Bolt Circle, Bushing Hub, FLHB Converter Code
1988PontiacGrand Prix2.8LV6N/A
1987BuickCentury3.8LV6N/A
1987BuickCentury2.8LV6N/A
1987BuickLeSabre3.8LV6N/A
1987BuickRiviera3.8LV6N/A
1987Oldsmobile983.8LV6N/A
1987OldsmobileCutlass Ciera3.8LV6N/A
1987OldsmobileCutlass Ciera2.8LV6N/A
1987OldsmobileDelta 883.8LV6N/A
1987OldsmobileToronado3.8LV6N/A
1987Pontiac60002.8LV6N/A
1987PontiacBonneville3.8LV6N/AFitment Note:9.5" Inch Bolt Circle, Bushing Hub, FLHB Converter Code
1987PontiacGrand Am3.0LV6N/A
1986BuickCentury3.8LV6N/A
1986BuickCentury2.8LV6N/A
1986BuickLeSabre3.8LV6N/A
1986BuickRiviera3.8LV6N/A
1986Oldsmobile983.8LV6N/A
1986OldsmobileCutlass Ciera3.8LV6N/A
1986OldsmobileCutlass Ciera2.8LV6N/A
1986OldsmobileDelta 883.8LV6N/A
1986OldsmobileToronado3.8LV6N/A
1986Pontiac60002.8LV6N/A
1986PontiacGrand Am3.0LV6N/A
1985BuickCentury3.8LV6N/A
1985BuickCentury3.0LV6N/A
1985BuickCentury4.3LV6N/A
1985Oldsmobile983.8LV6N/A
1985OldsmobileCutlass Ciera3.8LV6N/A
1985OldsmobileCutlass Ciera4.3LV6N/A
1985Pontiac60004.3LV6N/A
1985Pontiac60002.8LV6N/A
1985PontiacGrand Am3.0LV6N/A
1984BuickCentury3.8LV6N/A
1984BuickCentury3.0LV6N/A
1984BuickCentury4.3LV6N/A
1984OldsmobileCutlass Ciera3.8LV6N/A
1984OldsmobileCutlass Ciera4.3LV6N/A
1984Pontiac60004.3LV6N/A
1984Pontiac60002.8LV6N/A
1983BuickCentury4.3LV6N/A
1983OldsmobileCutlass Ciera3.0LV6N/A
1983OldsmobileCutlass Ciera4.3LV6N/A
1983Pontiac60004.3LV6N/A
1983Pontiac60002.8LV6N/A
1982BuickCentury4.3LV6N/A
1982Pontiac60004.3LV6N/A
1982Pontiac60002.8LV6N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

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