KTA50 & 4BT Engine Starter Motor 3021036 | New Construction Equipment Diesel Starter

Product Details

Product Overview

This high-performance diesel engine starter motor, part number 3021036, is engineered specifically for heavy-duty engine platforms including the KTA50 and 4BT models. Designed as a direct replacement for construction equipment and industrial machinery, this starter ensures reliable engine cranking under demanding job site conditions.

Manufactured to meet or exceed OEM specifications, this new unit is a critical component for machinery repair shops, building material shops, and manufacturing plants requiring consistent uptime. The starter motor is compatible with 6-cylinder diesel configurations commonly found in excavators, generators, and industrial power units.

Key Features & Benefits

• Direct Fit Replacement – Precisely engineered for KTA50 and 4BT engine families, minimizing installation time and ensuring proper alignment with flywheel ring gears.
• Heavy-Duty Construction – Built to withstand high-torque demands of diesel starting cycles, with robust internal components rated for industrial and construction applications.
• Verified Compatibility – Each unit is tested against OEM specifications, providing confidence for replacement in Cummins-powered equipment worldwide.
• Comprehensive Quality Control – Includes machinery test reports and outgoing video inspection documentation for full traceability.
• Compact & Lightweight Design – At 8 kg, this starter motor balances power output with manageable weight for easier handling during installation.
• Global Logistics Ready – Packaged in professional packaging with one-week delivery capability to major ports and industrial centers.

Technical Specifications

OEM Cross-Reference

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

• OEM: 3021036
• Alternative Reference: Compatible with KTA50 and 4BT engine specifications

Note: Always verify physical dimensions and mounting configuration against your existing starter before installation.

Compatibility

This starter motor is commonly used for the following applications:

• Engine Models: KTA50 (50-liter displacement), 4BT (3.9-liter displacement)
• Equipment Types: Construction excavators, industrial generators, heavy-duty machinery, and power units
• Industry Use: Building material shops, manufacturing plants, and machinery repair shops

Always confirm fitment with your specific engine serial number and existing starter specifications.

Global Supply & Distribution

Our Chongqing-based facility provides efficient worldwide shipping to major industrial markets including North America, Europe, Asia-Pacific, and the Middle East. With one-week delivery capability, we serve clients requiring rapid replenishment for critical equipment repairs.

We maintain strong export experience for B2B transactions, offering professional documentation including commercial invoices, packing lists, and certificates of origin. Our logistics network supports delivery to major ports (Shanghai, Shenzhen, Ningbo) and inland industrial centers through reliable freight partners.

Quality Assurance

Each starter motor undergoes rigorous quality checks before shipment, including:

• Machinery Test Report: Functional testing to verify cranking performance and electrical specifications
• Video Outgoing Inspection: Visual documentation of final product condition
• Standard Packaging: Professional Cummins-branded packaging to prevent transit damage
• Warranty Coverage: 6-month warranty against manufacturing defects

Our quality management aligns with industry standards for diesel engine components, ensuring reliable operation in demanding environments.

FAQ

Q1: How do I verify this starter motor fits my engine?
Check your existing starter’s part number and mounting configuration. This unit (3021036) is designed for KTA50 and 4BT engines but may have variations in flange mounting or nose cone design. Compare the number of mounting holes, bolt pattern, and drive gear dimensions with your current starter before ordering.

Q2: What maintenance is recommended for this starter motor?
Regularly inspect electrical connections for corrosion and ensure battery voltage meets starter requirements (typically 12V or 24V systems). Keep the starter clean from debris and oil contamination. If cranking becomes sluggish, test battery condition and starter draw before replacement.

Q3: Can this starter be used for generator applications?
Yes, when the generator is powered by a compatible KTA50 or 4BT diesel engine. However, verify the flywheel ring gear specifications (number of teeth and module) match your generator’s flywheel. Industrial generator applications may require additional vibration isolation depending on mounting configuration.