
Product Overview
This high-performance 28V 50A alternator is engineered as a direct replacement for Caterpillar 320 Series excavators. Designed for reliability in demanding construction and industrial environments, it is manufactured to meet or exceed OEM specifications. We supply this critical engine component to a global network of distributors, equipment dealers, and repair shops across North America, Europe, the Middle East, and Asia-Pacific, ensuring fast delivery to major industrial hubs and ports.
Key Features & Benefits
- Robust Construction: Built with durable materials to withstand vibration, heat, and harsh operating conditions typical of heavy machinery.
- Stable Power Output: Delivers a consistent 28V/50A charge to reliably power the engine’s electrical system and support auxiliary equipment.
- Precision Fitment: Manufactured to exact OEM dimensions and mounting specifications for a hassle-free, bolt-on installation.
- Extended Service Life: High-quality bearings and windings reduce wear and tear, minimizing downtime and total cost of ownership.
- Global Compliance: Sourced from a certified manufacturer in Guangdong, China, with experience in international export standards.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | JFZ25502 |
| Type | Alternator |
| Voltage | 28V |
| Current Output | 50A |
| Engine Type | Diesel |
| Weight | 8 kg |
| Place of Origin | Guangdong, China |
| Packing | Plastic Bag, Box, Carton |
| Selling Units | Single Item |
OEM Cross-Reference
This alternator directly replaces the following OEM and aftermarket part numbers:
- Primary Part #: JFZ25502
- Caterpillar (CAT): 212-8561, 197-8820
Compatibility
This alternator is designed for compatibility with the following Caterpillar excavator models, typically equipped with diesel engines:
- Caterpillar 320B Excavator
- Caterpillar 320C Excavator
- Caterpillar 320D Excavator
- Caterpillar E320D Excavator
Note: Always verify your machine’s serial number and existing part number before purchase to ensure correct fitment.
Global Supply & Distribution
We are a leading B2B supplier of heavy equipment parts with a robust international logistics network. We efficiently serve key markets including:
- North America: Fast container shipping to major US and Canadian ports (LA, Long Beach, Vancouver, Houston).
- Europe: Reliable delivery to Rotterdam, Hamburg, Antwerp, and Felixstowe.
- Asia-Pacific & Middle East: Direct shipping to Singapore, Dubai, Sydney, and other major industrial centers.
Our expertise in export documentation, customs clearance, and compliance ensures a smooth and professional procurement experience for businesses worldwide.
Quality Assurance
- Manufacturing Standards: Produced in a facility utilizing advanced manufacturing processes and quality control checks at every stage.
- Testing: Each unit undergoes rigorous machinery testing. A test report and video outgoing-inspection are available to verify performance.
- Warranty: Backed by a 6-month warranty from the date of delivery, covering defects in materials and workmanship.
FAQ
Q: How can I confirm this alternator will fit my specific Caterpillar 320D excavator?
A: We recommend cross-referencing the part number currently on your machine. The primary compatible numbers are JFZ25502, 212-8561, and 197-8820. Please provide your machine’s model and serial number for our technical team to verify.
Q: Is this a new unit or a remanufactured part?
A: This is a brand new, high-quality replacement alternator. It is not remanufactured or used, ensuring maximum reliability and service life.
Q: What documentation and support do you provide for international B2B orders?
A> For all orders, we provide commercial invoices, packing lists, and certificates of origin. For quality assurance, we can supply machinery test reports and inspection videos. Our logistics team handles all shipping arrangements and provides tracking information.
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 .