Product Overview

This is a premium 24V alternator, part number 3972735, engineered for Cummins 6CTA and 6CT diesel engines. Designed for reliability in demanding industrial and power generation applications, this component is a critical part for maintaining optimal electrical system performance. We supply this part globally, with extensive experience serving key markets across North America, Europe, the Middle East, and Asia-Pacific, ensuring timely delivery to major ports and industrial hubs for B2B clients.

Key Features & Benefits

• High-Output Performance: Delivers consistent and reliable 24V power to support the electrical demands of heavy-duty Cummins engines.
• Robust Construction: Built with durable materials and precision engineering to withstand high temperatures and vibrations common in generator and industrial settings.
• Direct OEM Replacement: Manufactured to meet or exceed original specifications for a perfect fit and seamless integration.
• Extended Service Life: Quality bearings and windings reduce wear, contributing to longer intervals between maintenance and replacement.
• Global Compatibility: Supplied and tested for compatibility with engine models exported and used worldwide.

Technical Specifications

OEM Cross-Reference

This alternator directly replaces the following OEM part numbers:

• Cummins: 3972735
• Common alternative or related numbers may include: 300-3972, 3003972. (Please verify specific cross-reference with our technical team for your application.)

Compatibility

This alternator is designed for use with Cummins diesel engines, primarily the:

• Engine Series: Cummins 6CT, 6CTA
• Primary Application: Industrial generator sets, marine auxiliary power units, and heavy equipment utilizing these engine platforms.
• Typical Equipment: Found in standby and prime power generators from manufacturers like Cummins Power Generation, as well as in various industrial machinery.

Note: Always verify the specific model and serial number of your engine for final compatibility confirmation.

Global Supply & Distribution

We are a trusted supplier in the global diesel engine parts network. Our logistics are optimized for international B2B trade:

• Worldwide Shipping: Reliable export to all major continents via air and sea freight.
• Key Markets Served: North America (USA, Canada, Mexico), European Union, United Kingdom, Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Singapore), and South America.
• Efficient Logistics: Fast container and LCL shipments to major ports like Rotterdam, Los Angeles, Singapore, and Jebel Ali.
• Trade Compliance: All shipments are prepared with complete and accurate commercial documentation (invoice, packing list, certificate of origin) for smooth customs clearance.

Quality Assurance

We ensure every part meets the high standards required for critical engine components.

• Manufacturing Standards: Produced under strict quality control systems adhering to ISO guidelines.
• Performance Testing: Each alternator undergoes rigorous electrical output and durability checks before dispatch.
• Warranty: Backed by a standard warranty against manufacturing defects. Contact us for specific warranty terms applicable to your region.

FAQ

Q1: Is this a direct bolt-on replacement for my Cummins 6CTA generator?
A1: Yes, the alternator with part number 3972735 is designed as a direct OEM replacement for the standard 24V alternator on Cummins 6CT and 6CTA engines. Ensure you compare the physical dimensions and mounting points with your existing unit for confirmation.

Q2: What is the lead time for delivery to Europe or the Middle East?
A2: For standard sea freight to major European ports (e.g., Rotterdam, Hamburg) or Middle Eastern hubs (e.g., Jebel Ali), typical transit time is 3-5 weeks door-to-port, depending on the final destination. Express air freight options are available for urgent requirements.

Q3: Are the electrical connectors compatible with my existing wiring harness?
A3: This alternator is built to match the OEM specification, which includes the connector type. However, wiring harnesses can sometimes be modified. We recommend checking the connector diagram of your current alternator against the product images or consulting with a qualified technician to ensure compatibility.

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 products in 2 days.

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

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .