Carrier X2/X4 Series 9-Tooth Pinion Gear OEM Replacement Starter Motor for Tier

Product Specification

25-39476-00 Starter Motor Tier 4 Engine Carrier X2 / X4 12v 9t Refrigerated Car Starter

Product Overview

The Carrier 25-39476-00 Starter Motor is a high-performance OEM replacement part designed for Carrier X2 and X4 series truck refrigeration systems equipped with Tier 4 engines.
This 12-volt, 9-tooth starter motor delivers reliable cranking power to ensure quick and consistent engine starts under all operating conditions, including cold climates and high-demand refrigeration cycles.

Engineered to meet Carrier’s strict quality standards, this starter motor guarantees precise fit, superior durability, and long service life, making it the ideal solution for refrigerated trucks requiring dependable starting performance.

Key Features & Benefits

• Genuine Carrier OEM Part – 100% original equipment, ensuring full compatibility and factory-level performance.

• Powerful 12V Output – Designed to deliver strong torque for fast and reliable engine starts.

• 9-Tooth Pinion Gear – Provides smooth engagement with the flywheel to minimize wear and reduce noise.

• Durable Construction – Built with high-strength steel housing, corrosion-resistant components, and heavy-duty bearings for long-term operation in demanding environments.

• Enhanced Reliability – Maintains consistent starting even in low temperatures or extended use.

• Direct-Fit Replacement – Installs easily without modifications, reducing downtime and maintenance costs.

Function & Importance

The starter motor is a critical component of the Carrier refrigeration engine’s ignition system, responsible for:

• Delivering sufficient torque to rotate the Tier 4 engine and initiate combustion.

• Ensuring fast, efficient starts to maintain uninterrupted cooling operations during transport.

• Supporting long-haul reliability where frequent start-stop cycles are common.

• Protecting the electrical system with stable, controlled power delivery.

Replacing a worn or failing starter motor with a Carrier 25-39476-00 OEM unit helps prevent engine start delays, cold-start failures, and costly downtime in refrigerated transport applications.

Compatible Models

This starter motor is designed for use in:

• Carrier X2 Series – X2 2100, X2 2500

• Carrier X4 Series – X4 7300, X4 7500

• Other Carrier refrigeration units equipped with Tier 4 diesel engines using the same starter specification.

Technical Specifications

Installation Guidelines

1. Disconnect the Battery – Ensure the truck’s electrical system is turned off to prevent accidental short circuits.

2. Remove Old Starter – Detach wiring connections and unbolt the old starter motor.

3. Inspect Mounting Area – Clean and check the engine mounting surface for debris or damage.

4. Install New Motor – Position the Carrier 25-39476-00 starter, secure bolts, and reconnect electrical wiring.

5. Reconnect Battery & Test – Reconnect the battery and perform a start test to confirm smooth engagement and operation.

Summary

The Carrier 25-39476-00 Starter Motor is a robust and efficient OEM solution for Carrier X2/X4 refrigeration truck units with Tier 4 engines.
Its 12V, 9-tooth design delivers powerful and dependable engine starts, ensuring that your refrigerated fleet maintains uninterrupted cooling performance during critical transportation operations.

FAQ

Q1:When will you arrange the delivery?

A:Generally 1-2 weeks after the payment, and we will continually inform customer the goods carriage status, until you receive the goods.

Q2. Do you test all your goods before delivery?

A: Yes, we have 100% test before delivery.

Q3:Can we get the some technological training?

Our company provide the complete technological training, including: installation, use and maintenance.

Q4:How long is your products warranty?

A:The products of our lifetime for you to provide maintenance, one year warranty,Courier fees to pay half, after a year of maintenance fees shall be borne by the buyers.

Q5: How do you make our business long-term and good relationship?

A:1. We keep good quality and competitive price to ensure our customers benefit ; 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.