TC Remanufacturing B21FZPB Automatic Transmission Torque Converter

Automatic Transmission Torque Converter for GM Applications

TC Remanufacturing B21FZPB is an automatic transmission torque converter built for select GM vehicles with a 27 spline count, 11.000-inch converter diameter, and lock-up operation. It uses a 3-pad mounting design, a 0.825 pilot diameter, and a no drive on hub configuration for the listed applications.

Fits 2006-2011 Chevrolet HHR, 2005-2010 Chevrolet Cobalt, 2004-2010 Chevrolet Malibu, 2007-2008 Pontiac G5, 2005-2007 Saturn Ion, and other listed Chevrolet, Pontiac, Saturn, Buick, Oldsmobile, and Cadillac models. Part number B21FZPB is also identified by the FZPB converter code in select fitments.

Key Features

• Automatic transmission torque converter from TC Remanufacturing
• Part number: B21FZPB
• Lock-up converter type for listed GM applications
• 11.000-inch converter diameter
• 27 spline count
• 3-pad mounting type
• 0.825 pilot diameter
• 9.500 bolt circle
• No drive on hub design
• No ring gear
• 2375 RPM stall

Detailed Description

This TC Remanufacturing torque converter is specified for a wide range of GM front-wheel-drive platforms, including Chevrolet Malibu, Chevrolet Cobalt, Chevrolet HHR, Pontiac Grand Am, Pontiac Sunfire, Saturn Ion, and Saturn Vue applications. The lock-up design supports the transmission’s coupling strategy, while the 27 spline count, 3-pad mounting, and no drive on hub configuration help match the original drivetrain interface for the listed vehicles. Use B21FZPB when the transmission code and converter specifications call for this exact configuration.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Shudder or slip during torque converter lock-up
• Incorrect stall speed from a worn or mismatched converter
• Transmission engagement issues tied to converter wear
• Vibration or drivability concerns related to converter imbalance
• Fitment problems when the spline count or hub style does not match

Installation Notes and Tips

Verify the transmission code, spline count, mounting style, pilot diameter, and converter diameter before installation. Confirm that the vehicle calls for a 27 spline, no drive on hub, 3-pad lock-up converter with the listed stall specification. Always inspect the transmission pump, flexplate, and related seals during replacement, and follow the service procedure for proper converter seating and fluid fill.

Quality Assurance

TC Remanufacturing supplies this torque converter as a remanufactured drivetrain component for the listed GM applications. Confirm all measurements and fitment details against the vehicle’s transmission specifications before installation.