Carrier 25-39476-00 Starter Motor – 12V 9T Tier 4 Engine Starter for X2/X4 Refrigeration Units

The Carrier 25-39476-00 Starter Motor is a heavy-duty, OEM-grade replacement part specifically engineered for Tier 4 engines used in Carrier X2 and X4 refrigerated truck and trailer units. Operating at 12 volts with a 9-tooth (9T) drive gear, this starter motor provides the cranking power required to start diesel-powered refrigeration engines quickly and reliably, even under extreme temperature conditions.

Designed to meet the demands of commercial transport refrigeration, the 25-39476-00 ensures fast engine ignition, low maintenance operation, and long service life. Whether used in long-haul trailers, urban delivery trucks, or other Carrier refrigerated vehicles, it delivers the durability and performance required to keep perishable goods at precise temperatures.

• OEM-Quality Replacement - Fully compatible with Carrier Transicold X2 and X4 units equipped with Tier 4 engines.
• 12V / 9T Design - Optimized for efficient cranking power and smooth engagement with the engine flywheel.
• High Torque Performance - Provides strong and reliable starting power for rapid engine ignition in cold or hot climates.
• Durable Construction - Built with heat-resistant materials and corrosion-proof housing for extended service life.
• Low Maintenance - Engineered for consistent operation with minimal wear, reducing downtime and repair costs.
• Easy Installation - Direct-fit design for quick replacement with no modifications required.

This starter motor is ideal for a wide range of Carrier refrigeration units using Tier 4 diesel engines, including:

• Carrier X2 Series refrigerated truck/trailer units
• Carrier X4 Series refrigerated truck/trailer units
• Other Carrier Transicold applications requiring a 12V 9T starter motor

1. Disconnect Power - Ensure the battery and refrigeration unit are completely powered down before starting.
2. Remove Old Starter - Unbolt and disconnect wiring from the existing starter motor carefully.
3. Inspect Connections - Check cables and terminals for wear or corrosion; clean if necessary.
4. Install New Starter - Position the Carrier 25-39476-00 starter motor and secure mounting bolts to OEM torque specifications.
5. Reconnect Wiring - Attach electrical connections securely and test the system for proper engagement.

The Carrier 25-39476-00 Starter Motor is a high-performance, OEM-spec component designed to deliver reliable starting power for Carrier X2 and X4 refrigeration units with Tier 4 engines. Its 12V 9T configuration, rugged construction, and precise fit make it the ideal solution for keeping refrigerated transport fleets running efficiently and avoiding costly downtime.