Caterpillar 29556884 Transmission Control Module
The Caterpillar 29556884 Electronic Transmission Control Module (TCM) is a premium OEM component engineered to deliver precise gear shifting and optimal drivetrain performance in heavy-duty applications. Built around the advanced A63 model architecture, this highly reliable TCM seamlessly supports dual voltage systems (12V and 24V), making it exceptionally versatile for various industrial and commercial equipment setups. The unit features a rugged metal enclosure equipped with integrated rear cooling fins (heatsink) for superior thermal management, actively protecting internal electronics from heat stress during intense, continuous operations. Additionally, it is equipped with a secure, large multi-pin electrical connector interface to ensure stable and uninterrupted communication with your machine’s powertrain network.
Technical Specifications:
- Brand: Caterpillar
- Part Number: 29556884 (Base P/N)
- Module Model: TCM A63
- Operating Voltage: 12V / 24V (Dual Voltage System Compatibility)
- Housing Design: Heavy-duty metal enclosure with integrated rear cooling fins
- Connection Type: Large multi-pin electrical connector interface
- Certifications & Approvals: CE, E11 10R-042849, e11 03 2849

| Brand | Caterpillar |
|---|---|
| Model | 29556884 |
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ENERAL DELIVERY INFORMATION
Orders will be processed and shipping during standard working hours (0830 – 1700 GMT+8) Monday to Friday (excluding Bank Holidays)
On rare occasions, your order may be handled and/or processed on a Saturday. However, we are unable to ship items on weekends, therefore any orders dealt with on the weekend will be send out the next following working day.
The cut-off point for orders to be shipped the same day is 14:00 – please contact us to confirm stock levels before placing your order
Any orders placed after the cut-off will ship the next working day assuming all parts are in stock and ready for dispatch.
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- must be paid for in full before any goods are dispatched
- require a signature upon delivery. Please ensure delivery can be made to an address where someone will be available to sign for the delivery
- are packaged with great care, ensuring your order and the contents it contains, makes it safely through the delivery network
Caterpillar 29556884 Transmission Control Module
Ensure peak drivetrain reliability with the genuine Caterpillar 29556884 Transmission Control Module (TCM A63). Designed for demanding heavy-duty applications, this 12V/24V dual-voltage controller features a rugged heatsink enclosure and secure multi-pin connectivity for optimal thermal management and precise, consistent shifting performance.

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