Product Overview
This is a premium quality 24V 70A alternator, part number 5262960, engineered for the Cummins QSB6.7 diesel engine. It is a direct OEM replacement specifically designed for Komatsu R290LC-9 excavators and compatible with a wide range of heavy machinery. We supply this critical engine component globally, with established logistics to major industrial markets including North America, Europe, the Middle East, and Asia-Pacific, ensuring reliable performance for your fleet anywhere in the world.
Key Features & Benefits
- Precision Engineered: Manufactured to exact OEM specifications for perfect fitment and seamless integration with the Cummins QSB6.7 engine system.
- Robust & Durable Construction: Built with high-grade materials to withstand the harsh operating conditions of construction and industrial equipment, ensuring long service life.
- Reliable Power Output: Delivers a consistent 70-amp output at 24 volts, providing stable electrical power for all vehicle systems, batteries, and accessories under heavy load.
- 8PK Belt Profile: Features an 8-rib poly-V belt pulley for maximum grip and efficient power transmission, reducing slippage and wear.
- Global Compliance Ready: Sourced from a professional manufacturer in Guangdong, China, with extensive export experience, ensuring products meet international shipping and trade standards.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 5262960 |
| Type | Alternator |
| Engine Model | Cummins QSB6.7 |
| Engine Type | Diesel |
| Voltage | 24V |
| Amperage | 70A |
| Belt Type | 8PK |
| Weight | 11 kg |
| Dimensions | OEM Standard Size |
| Place of Origin | Guangdong, China |
OEM Cross-Reference
This alternator serves as a direct replacement for the following OEM part number:
- Cummins: 5262960
Note: Always verify part number compatibility with your specific engine serial number before purchase.
Compatibility
Primary Application: This alternator is designed for the Cummins QSB6.7 diesel engine, commonly found in the Komatsu R290LC-9 excavator.
Wide Machinery Compatibility: Suitable for various equipment powered by the QSB6.7 engine, including but not limited to:
- Excavators (e.g., Komatsu R290LC-9)
- Forklifts
- Trucks
- Wheel Loaders
- Bulldozers
- Buses
- Generator Sets
Global Supply & Distribution
We are a trusted B2B supplier for engine components with a robust international supply chain. We offer reliable worldwide shipping via air and sea freight to all major markets.
- Key Markets Served: North America (USA, Canada, Mexico), European Union, United Kingdom, Australia, Southeast Asia, Middle East, Africa, and South America.
- Efficient Logistics: We ensure fast delivery to major industrial ports and logistics hubs, including Los Angeles, Rotterdam, Singapore, Dubai, and Sydney.
- Export Expertise: All documentation, including commercial invoices, packing lists, and certificates of origin, is provided professionally to ensure smooth customs clearance globally.
Quality Assurance
- Manufacturing Standards: Produced in a certified facility using precision tooling and quality-controlled processes to meet or exceed OEM performance benchmarks.
- Comprehensive Warranty: Backed by a 6-month warranty from the date of delivery, covering defects in materials and workmanship.
- Rigorous Testing: Each unit undergoes thorough testing, including performance output checks. A machinery test report is available, and video outgoing-inspection can be provided upon request to verify quality before shipment.
- Secure Packaging: Individually packed in protective plastic, placed in a box, and secured in a sturdy carton for safe international transit.
FAQ
Q1: Is this alternator a direct bolt-on replacement for my Komatsu R290LC-9 excavator?
A: Yes, this alternator (5262960) is designed as a direct OEM replacement for the Cummins QSB6.7 engine in the Komatsu R290LC-9. It matches the original mounting points, electrical connectors, and pulley configuration for straightforward installation.
Q2: What documentation and support come with the product for international buyers?
A: We provide full export documentation, including a commercial invoice, packing list, and certificate of origin. For quality verification, we can supply a machinery test report and even a video of the outgoing inspection. Our team offers technical support for fitment questions.
Q3: How should I maintain this alternator after installation?
A: Ensure the 8PK drive belt is correctly tensioned and free from cracks or glazing. Keep the alternator casing clean and free of debris. Regularly check the electrical connections for tightness and signs of corrosion. Monitoring the vehicle’s charging system voltage (around 28V for a 24V system when running) is a good practice to confirm operational health.
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 .