Product Overview

This is a high-performance 24V alternator engineered specifically for Komatsu 4D95 series diesel engines, commonly found in excavators and other heavy machinery. As a leading global supplier of genuine and premium aftermarket engine components, we ensure this part meets or exceeds OEM specifications. We specialize in direct B2B sales and export to major industrial markets worldwide, providing reliable parts for fleet maintenance and equipment repair operations.

Key Features & Benefits

• Precision Engineered: Manufactured to exact Komatsu tolerances for a perfect fit and seamless integration with the 4D95 engine system.
• Robust Construction: Built with high-grade materials and components to withstand the demanding conditions of construction and mining environments.
• Stable Power Output: Delivers a consistent 35-amp output at 24 volts, ensuring reliable electrical system performance for starting, lighting, and onboard electronics.
• Enhanced Durability: Features improved heat dissipation and sealed bearings for extended service life and reduced downtime.
• Direct Replacement: Designed as a direct OEM substitute, requiring no modifications for installation, saving valuable workshop time.

Technical Specifications

OEM Cross-Reference

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

• Komatsu: 600-821-2350
• Komatsu: 600-821-3870

Always verify part numbers against your machine’s service manual or existing component before purchase.

Compatibility

This alternator is designed for Komatsu excavators and heavy equipment powered by the 4D95 series diesel engine. It is a critical replacement part for electrical system maintenance and repair. For specific machine model compatibility (e.g., PC200, PC220 variants), please consult your equipment manual or contact our technical support with your machine’s model and serial number.

Global Supply & Distribution

We are a trusted partner for construction and mining companies worldwide. Our streamlined logistics network ensures efficient shipping to key industrial regions:

• Major Markets Served: North America (USA, Canada), Europe (UK, Germany, Netherlands), Asia-Pacific (Australia, Singapore, Japan), the Middle East (UAE, Saudi Arabia), and South America.
• Efficient Logistics: We ship via air and sea freight to all major ports and cargo hubs, offering competitive FOB, CIF, and DDP terms to suit your import needs.
• Export Expertise: All documentation (commercial invoice, packing list, certificate of origin) is provided for smooth customs clearance. We have extensive experience in international B2B trade compliance.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities using advanced manufacturing processes.
• Rigorous Testing: Every unit undergoes comprehensive performance testing, including output voltage/amperage checks and durability cycles, to ensure it meets specified operational parameters.
• Warranty: Backed by a standard 12-month warranty against manufacturing defects, providing peace of mind for your investment.

FAQ

Q1: Is this alternator a direct bolt-on replacement for my Komatsu excavator?
A1: Yes. This alternator is engineered to match the exact dimensions, mounting points, and electrical connectors of the original Komatsu 600-821-2350/3870 part, making it a direct bolt-on replacement for 4D95 engines.

Q2: What tools are required for installation, and is professional installation recommended?
A2: Installation typically requires standard mechanic’s tools (wrenches, sockets). While straightforward for experienced technicians, we recommend installation by a qualified mechanic familiar with heavy equipment electrical systems to ensure proper belt tension and connection integrity.

Q3: How can I verify this part is compatible with my specific machine?
A3: The surest method is to cross-reference the part number currently on your machine’s alternator. You can also provide our team with your Komatsu excavator’s full model number and serial number (SN), and we will confirm compatibility before you order.

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 .