HomeTransmission > Transmission Hard PartsTC Remanufacturing BM51 Automatic Transmission Torque Converter
Part #: BM51

TC Remanufacturing BM51 Automatic Transmission Torque Converter

4 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: BMW, 530i
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Overview of TC Remanufacturing BM51 Torque Converter for BMW 530i

The TC Remanufacturing BM51 automatic transmission torque converter is engineered specifically for BMW 530i models. Designed to meet precise specifications, this torque converter ensures reliable performance and smooth power transfer in your vehicle's automatic transmission system.

  • Bolt Circle Diameter: 9.250 inches
  • Converter Diameter: 10.530 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
  • Spline Count: 27
  • Converter Codes: 209-302, g72
  • Stall Speed: Slight high
  • Ring Gear: Not included

Detailed Product Description

The BM51 torque converter from TC Remanufacturing is designed to fit BMW 530i automatic transmissions, providing a captive clutch design that enhances torque transfer efficiency. Its 10.530-inch diameter and 9.250-inch bolt circle ensure compatibility with the transmission housing. The slotted and stepped hub type allows for secure engagement with the transmission input shaft, supported by a 27-spline count for precise fitment. The mounting thread size of 10mm x 1.5 and 3-pad mounting type facilitate straightforward installation. This torque converter features a slightly high stall speed, which can improve vehicle responsiveness under certain driving conditions. It does not include a ring gear, so ensure compatibility with your transmission setup.

Common Applications and Problem Resolution

This torque converter is compatible with BMW 530i models and is typically used to address issues such as:

  • Transmission slipping or delayed engagement
  • Overheating of the transmission fluid
  • Reduced fuel efficiency due to torque converter inefficiency
  • Shuddering or vibration during acceleration
  • Excessive stall speed causing drivability concerns

Installation Notes and Tips

When installing the BM51 torque converter, ensure the following:

  • Verify the converter codes (209-302, g72) match your vehicle’s specifications
  • Check spline count and hub type compatibility with the transmission input shaft
  • Use proper torque settings for the 10mm x 1.5 mounting threads
  • Confirm the pilot diameter of 1.257 inches fits securely in the transmission housing
  • Inspect the transmission fluid and replace if contaminated during installation

Quality Assurance and Warranty

TC Remanufacturing provides this BM51 torque converter with a focus on durability and precision engineering. Each unit undergoes rigorous testing to meet OEM standards for fit and function. Warranty coverage details should be confirmed at the point of purchase, but TC Remanufacturing typically offers limited warranties covering defects in materials and workmanship.

BrandTC Remanufacturing
Part NumberBM51
Bolt Circle9.250
Converter Codes209-302, G72
Converter Diameter10.530
Converter TypeCaptive Clutch
Hub TypeSlotted / Stepped
Mounting Thread Size10mm x 1.5
Mounting Type3 Pads
Pilot Diameter1.257
Ring GearNo
Spline Count27
StallSlight High

This part fits 4 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2007BMW530i3.0LL6N/A
2006BMW530i3.0LL6N/A
2005BMW530i3.0LL6N/A
2004BMW530i3.0LL6N/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.