272-4774 10T 24V 5.0kW Starter Motor for Caterpillar 320C 320B 320D Excavator Engine Parts

Product Details

Product Overview

This high-performance Starter Motor (Part Number: 272-4774) is engineered as a direct replacement for the starting systems of Caterpillar 320C, 320B, and 320D series excavators. Designed to deliver robust cranking power, this 10-tooth, 24-volt, 5.0 kW unit ensures reliable engine ignition in demanding construction, mining, and industrial environments.

Manufactured to meet OEM size and performance specifications, this starter motor is a critical component for maintaining the operational uptime of your heavy machinery. It is suitable for a wide range of applications, including construction, agriculture, genset, marine, and material handling equipment that utilizes the Caterpillar 320-series diesel engine platform.

As a direct-fit replacement, this unit offers a seamless installation process, helping to minimize downtime and get your equipment back to work quickly. It is an ideal solution for fleet managers and equipment owners seeking a dependable, cost-effective alternative to original manufacturer parts without compromising on quality.

Key Features & Benefits

• Direct Fitment: Designed to match OEM dimensions and mounting points for the Caterpillar 320C, 320B, and 320D excavator models, ensuring a hassle-free installation.
• High Cranking Power: Rated at 5.0 kW with a 24V electrical system, providing the necessary torque to reliably start diesel engines even in cold weather or under heavy load.
• Robust Construction: Built with heavy-duty components to withstand the high vibration, shock loads, and extreme temperatures common in construction and industrial applications.
• Verified Performance: Each unit undergoes strict quality control checks, including machinery test reports and video outgoing inspection, to ensure peak performance upon delivery.
• Cost-Effective Solution: Offers a high-quality alternative to expensive OEM parts, helping to reduce maintenance and repair costs for your fleet.
• Versatile Application: Suitable for a broad range of machinery beyond excavators, including industrial engines, generators, and marine applications, providing flexibility for your inventory.
• Secure Packaging: Packed in protective plastic bags, boxes, and cartons to prevent damage during international transit.

Technical Specifications

OEM Cross-Reference

This starter motor is a direct replacement for the following OEM part numbers:

• 272-4774 (Caterpillar OEM Number)

Note: This part is designed as a high-quality aftermarket replacement. While the primary cross-reference is 272-4774, please verify the tooth count (10T), voltage (24V), and mounting configuration against your original starter to ensure correct fitment for your specific Caterpillar 320-series engine.

Compatibility

This starter motor is commonly used for the following Caterpillar equipment and engine applications:

• Engine Models: Caterpillar 320C, 320B, 320D
• Excavator Applications: Commonly used in Caterpillar 320 series hydraulic excavators.
• General Applications: Construction machinery, industrial engines, agricultural equipment, generator sets (gensets), marine engines, and material handling equipment that use the compatible 320-series diesel engine platform.

Important Fitment Note: Please compare the physical dimensions, mounting bracket orientation, and electrical connector type with your original part to confirm compatibility before purchase. This part is designed for 24V electrical systems only.

Global Supply & Distribution

We are a dedicated supplier of heavy-duty engine parts with a robust global supply chain. We offer worldwide shipping to meet the needs of international B2B buyers.

• Major Markets Served: North America, Europe, Southeast Asia, Middle East, Africa, and Oceania.
• Fast Delivery: Efficient logistics to major ports and industrial centers, including Los Angeles, Rotterdam, Dubai, Singapore, and Shanghai.
• Export Experience: We are experienced in international trade, ensuring all documentation and customs requirements are handled professionally for smooth border clearance.
• Reliable Stock: Maintained inventory ensures quick dispatch for both small orders and bulk wholesale requirements.

Quality Assurance

We are committed to providing products that meet high standards of reliability and performance.

• Manufacturing Standards: Components are manufactured in ISO-certified facilities, ensuring consistent quality and precision.
• Testing: Each starter motor is rigorously tested for electrical output, torque, and mechanical integrity. A Machinery Test Report is provided with your order.
• Inspection:Video Outgoing Inspection is available upon request, allowing you to verify the product’s condition before it ships.
• Warranty: Backed by a 6-month warranty against manufacturing defects, providing peace of mind for your purchase.
• After-Sales Support: We offer online support after the warranty period to assist with any technical questions or concerns.

FAQ

Q: How do I confirm this starter motor will fit my Caterpillar 320C excavator?

A: To ensure a correct fit, please verify the following details against your current starter: 1) The part number is 272-4774 or a direct cross. 2) The starter has 10 teeth (10T) on the drive gear. 3) It is a 24V, 5.0 kW unit. 4) The mounting flange pattern and overall physical dimensions match. If your machine is a 320C, 320B, or 320D, this is the correct application.

Q: What is the installation process for this starter motor?

A: Installation is a straightforward mechanical replacement. 1) Disconnect the negative battery terminal. 2) Remove the electrical connections from the old starter. 3) Unbolt the starter from the engine block. 4) Mount the new starter using the same bolts (torque to manufacturer specs). 5) Reconnect the electrical cables (B+ terminal and trigger wire). 6) Reconnect the battery and test the cranking operation. Always consult your machine’s service manual for specific torque values and procedures.

Q: What maintenance is required for this starter motor?

A: The starter motor is a sealed unit and requires minimal maintenance. To ensure longevity, keep the electrical connections clean and tight to prevent voltage drop. Periodically check the mounting bolts to ensure they are secure. Avoid prolonged cranking (over 30 seconds) to prevent overheating. If the engine fails to start after several attempts, check the battery condition and charging system before replacing the starter.