TC Remanufacturing 642 Automatic Transmission Torque Converter

Overview of TC Remanufacturing Torque Converter 642

The TC Remanufacturing Automatic Transmission Torque Converter part number 642 is engineered for reliable performance in Dodge vehicles. Designed specifically for models such as the Dodge Ram 1500, Ram 2500, Ramcharger, and Dakota, this lock-up torque converter offers precise fitment and durability.

• Compatible with Dodge B250, B350, B2500, B3500, D150, D250, D350, Dakota, Ram 1500, Ram 1500 Van, Ram 2500, Ram 3500, Ramcharger, W150, W250, and W350 models
• Lock-up converter type with a stall speed range of 2300-2600 RPM
• Built with high carbon friction material for enhanced durability
• 10.000 inch bolt circle and 11.000 inch converter diameter
• Slotted hub type with 23 spline count for secure engagement
• Mounting thread size of 5/16 x 24 and 4 pads offset mounting type
• Includes a 130 tooth wide ring gear for proper transmission operation
• Pilot diameter measures 1.810 inches for accurate alignment

Technical Details and Specifications

This automatic transmission torque converter (part number 642) is designed with a lock-up feature to improve fuel efficiency and reduce heat generation during operation. The converter’s stall speed of 2300-2600 RPM is optimized for smooth power transfer and responsive acceleration in Dodge trucks and vans. The high carbon friction material used in the construction enhances the torque converter’s wear resistance and longevity under demanding driving conditions.

The 10.000 inch bolt circle and 11.000 inch converter diameter ensure compatibility with the specified Dodge models, while the 23 spline slotted hub provides a secure connection to the transmission input shaft. The mounting thread size of 5/16 x 24 and 4 pads offset mounting type facilitate proper installation and alignment. Additionally, the included 130 tooth wide ring gear supports the torque converter’s engagement with the transmission system.

Applications and Problem Solving

• Replaces worn or damaged torque converters in Dodge Ram 1500, Ram 2500, and Dakota models
• Addresses slipping or shuddering issues during acceleration
• Improves lock-up clutch engagement for better fuel economy
• Resolves overheating problems caused by inefficient torque converter operation
• Restores proper stall speed for optimal engine performance

Installation Notes and Tips

Ensure the torque converter is properly seated on the transmission input shaft before securing the mounting bolts. Verify that the 4 pads offset mounting type aligns correctly with the transmission housing. Use the specified 5/16 x 24 mounting thread size bolts and torque to manufacturer specifications. Check the pilot diameter fit of 1.810 inches to confirm proper alignment. It is recommended to inspect the transmission fluid and replace it if contaminated during installation.

Quality Assurance and Warranty

TC Remanufacturing torque converters are built to meet OEM specifications and undergo rigorous quality control testing. The use of high carbon friction materials contributes to consistent performance and durability. This torque converter part number 642 is backed by a limited warranty covering defects in materials and workmanship, providing confidence in its reliability for Dodge B250, Ramcharger, and other compatible models.