TC Remanufacturing B11 Automatic Transmission Torque Converter

Automatic Transmission Torque Converter B11

TC Remanufacturing B11 is an automatic transmission torque converter built for specific GM rear-wheel-drive applications from the late 1970s and early 1980s. It features a 12.750-inch converter diameter, a 10.750-inch bolt circle, a non-lock-up design, and a medium stall setup for the listed vehicles.

Key Features

• Part number B11 from TC Remanufacturing
• 12.750-inch converter diameter
• 10.750-inch bolt circle
• Non lock-up torque converter design
• Slotted hub type
• 3-pad mounting type
• 1.703-inch pilot diameter
• 27-spline count
• Medium stall characteristics
• No ring gear

Fitment and Application

Compatible with a wide range of GM vehicles, including Fits 1976-1979 Chevrolet Caprice, N/A; Fits 1976-1979 Chevrolet Impala, N/A; Fits 1977-1979 Oldsmobile Cutlass, N/A; and Fits 1978-1979 Pontiac Grand Prix, N/A. This B11 torque converter also matches applications such as Fits 1976-1978 Buick Riviera, N/A and Fits 1976-1977 Pontiac Firebird, N/A.

Additional vehicle coverage includes Fits 1980-1981 Cadillac DeVille, N/A, Fits 1980-1981 Cadillac Fleetwood, N/A, and Fits 1982 Pontiac Parisienne, N/A. The B11 part number is also listed for Chevrolet Nova, Oldsmobile 98, Buick LeSabre, and Pontiac LeMans applications within the stated year ranges.

What This Torque Converter Helps Address

• Transmission engagement concerns tied to a worn or incorrect converter
• Improper stall speed for the listed drivetrain setup
• Fitment issues caused by mismatched spline count, pilot diameter, or bolt circle
• Vibration or drivability problems from a damaged torque converter
• Replacement needs during automatic transmission service or rebuild work

Installation Notes and Tips

Verify the converter diameter, bolt circle, spline count, pilot diameter, hub style, and mounting style against the original unit before installation. Confirm transmission and engine application details for the exact year and model, especially on GM platforms with overlapping service parts. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Quality Assurance

TC Remanufacturing supplies this torque converter as a remanufactured hard part for the listed automatic transmission applications. Part number B11 is specified by its physical dimensions and fitment data to support accurate replacement selection for Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac vehicles.