Product Overview

This is a premium quality 24V alternator, part number 3972735, engineered for Cummins 6CT and 6CTA series diesel engines. Designed as a direct OEM replacement, it ensures reliable power generation for critical engine systems. We specialize in global B2B supply, serving major industrial and automotive markets worldwide with fast, compliant shipping to key logistics hubs.

Key Features & Benefits

• OEM Specification & Fit: Manufactured to meet or exceed original Cummins performance standards, guaranteeing perfect fitment and seamless integration.
• Enhanced Durability: Built with high-grade materials and robust construction to withstand demanding operating conditions, ensuring long service life and reduced downtime.
• Stable Voltage Output: Delivers consistent and reliable 24V electrical power to maintain optimal performance of the engine’s electronic control units (ECUs), sensors, and charging system.
• Improved Reliability: Precision-engineered components minimize the risk of premature failure, providing dependable operation for heavy-duty applications.
• Cost-Effective Solution: Offers a high-performance alternative to genuine parts, providing significant value without compromising on quality or reliability for fleet managers and rebuilders.

Technical Specifications

OEM Cross-Reference

Primary OEM Part Number: 3972735

This part serves as a direct replacement for the original Cummins component. Always verify the part number stamped on your original unit for confirmation.

Compatibility

This alternator is specifically designed for and compatible with:

• Engine Models: Cummins 6CT and 6CTA series diesel engines.
• Typical Applications: Commonly found in heavy-duty trucks, industrial power generation units, construction equipment, and large marine auxiliary engines utilizing these engine platforms.
• For precise application verification, please cross-reference your engine’s serial number or the part number from the removed alternator.

Global Supply & Distribution

We are a trusted global supplier for engine component distributors, heavy equipment repair shops, and large fleet operators. Our streamlined export logistics ensure reliable delivery to all major markets:

• Primary Markets: North America, European Union, Asia-Pacific (including Australia), Middle East, and Africa.
• Efficient Logistics: We ship via air and sea freight from key Asian ports, offering competitive rates and transit times to major international hubs like Los Angeles, Rotterdam, Singapore, and Dubai.
• Trade Compliance: All shipments are prepared with complete and accurate commercial documentation (invoice, packing list, certificate of origin) to ensure smooth customs clearance worldwide.

Quality Assurance

Every alternator undergoes rigorous quality control to meet the demands of the international B2B market.

• Manufacturing Standards: Produced in ISO-certified facilities using precision tooling and quality-controlled materials.
• Performance Testing: Units are functionally tested to verify correct voltage output, rectifier operation, and bearing performance under simulated load conditions.
• Warranty: Backed by a standard international warranty against manufacturing defects. Specific warranty terms are provided with the commercial invoice.

FAQ

Q: How can I confirm this alternator will fit my Cummins 6CTA engine?
A: The surest method is to match the part number. Locate the part number stamped or on a tag on your existing alternator (typically 3972735). Also, verify your engine’s model and serial number plate. Our technical team can assist with cross-referencing.

Q: Is this a direct bolt-on replacement, or are modifications required?
A: This is designed as a direct bolt-on replacement for the OEM part. It should connect to the existing mounting brackets, pulley, and wiring harness without modification. Always consult the engine’s service manual for proper installation torque specifications and procedures.

Q: What is the typical lead time for shipping to North America or Europe?
A: For container (LCL/FCL) shipments to major ports, transit times are typically 25-35 days. We also offer expedited air freight options for urgent requirements, with delivery often within 5-10 business days. Contact us for a precise quote based on your order volume and destination.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship out products in 24 hours.

3.  Our packaging is standard export wooden box or others as your requirement.

4.  We will check the products before shipping, and give the pictures to our customers to confirm.

FAQ

Q1: Are you trading company or manufacturer ?
A: We are factory and trading company.

Q2: How long is your delivery time?
A: Generally it is 1-3 days if the goods are in stock. or it is 3-7 days if the goods are not in stock, it is according to quantity.

Q3: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.

Q4: 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.