TC Remanufacturing BM41 Automatic Transmission Torque Converter

Overview of TC Remanufacturing BM41 Torque Converter

The TC Remanufacturing BM41 automatic transmission torque converter is engineered for select BMW and Jaguar models, including the 330Ci, 330i, and XK8. Designed with precision, this torque converter features a captive clutch and a slotted/stepped hub type to ensure reliable performance in automatic transmissions.

• Bolt Circle Diameter: 9.250 inches
• Converter Diameter: 11.000 inches
• Converter Type: Captive clutch
• Hub Type: Slotted / stepped
• Mounting Thread Size: 10mm x 1.5
• Mounting Type: 3 pads
• Pilot Diameter: 1.257 inches
• Pilot Length: 1.435 inches
• Spline Count: 27
• Stall Speed: Slight low
• Compatible Converter Codes: 156-203, b61, u38
• Ring Gear: Not included

Technical Details and Specifications

The BM41 torque converter from TC Remanufacturing is designed to meet the specific requirements of automatic transmissions in BMW 330Ci and 330i models, as well as the Jaguar XK8. Its 11-inch diameter and 9.250-inch bolt circle provide a precise fit, while the captive clutch design enhances torque transfer efficiency. The slotted and stepped hub type allows for secure engagement with the transmission input shaft, supported by a 27-spline count for optimal power delivery. Mounting is facilitated by a 3-pad system with 10mm x 1.5 mounting threads, ensuring proper alignment and stability during operation. The pilot diameter and length (1.257 inches and 1.435 inches respectively) are engineered to maintain correct positioning within the transmission housing. This torque converter features a slightly low stall speed, which can influence vehicle acceleration characteristics.

Applications and Problem Resolution

This automatic transmission torque converter is compatible with the following vehicles:

• BMW 330Ci
• BMW 330i
• Jaguar XK8

Common transmission issues addressed by the BM41 torque converter include:

• Slipping or delayed engagement in automatic transmission
• Reduced torque transfer efficiency
• Excessive heat buildup in the transmission system
• Vibration or shudder during acceleration
• Failure of the original torque converter clutch mechanism

Installation Notes and Tips

When installing the TC Remanufacturing BM41 torque converter, ensure the following:

• Verify compatibility with your vehicle’s make and model, specifically BMW 330Ci, 330i, or Jaguar XK8
• Check that the converter codes (156-203, b61, u38) match the original part
• Inspect the transmission input shaft and mounting surfaces for wear or damage
• Use proper torque specifications for the 10mm x 1.5 mounting threads and 3-pad mounting system
• Confirm correct pilot diameter and length alignment to avoid installation issues

Quality Assurance and Warranty

TC Remanufacturing produces the BM41 torque converter with strict quality control standards to ensure durability and performance. While specific warranty details are not provided here, TC Remanufacturing typically offers coverage against manufacturing defects. It is recommended to consult the product documentation or contact the manufacturer for precise warranty information.