
Product Overview
This is a premium replacement piston designed for Cummins 6CT diesel engines. Engineered to meet or exceed OEM specifications, it is a critical component for engine rebuilds and maintenance in demanding industrial, construction, and marine applications. We supply this high-quality part globally, with established distribution channels to major markets including North America, Europe, the Middle East, and Asia-Pacific, ensuring reliable performance wherever your operations are located.
Key Features & Benefits
- Precision Engineered: Manufactured to exact OEM chamber size (66.5mm) and dimensional tolerances for a perfect fit and optimal compression.
- Enhanced Durability: Constructed from high-grade materials to withstand the high temperatures and pressures of diesel combustion cycles.
- Reliable Performance: Ensures consistent power output, fuel efficiency, and reduced oil consumption for your Cummins engine.
- Global Compatibility: Direct replacement part suitable for a wide range of applications, from heavy-duty trucks to stationary power generators.
- Quality Assured: Backed by comprehensive testing and a solid warranty, providing peace of mind for your business.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Type | Piston |
| OEM Part Number | 3919565 |
| Engine Model | Cummins 6CT / 6D114 |
| Engine Type | Diesel |
| Chamber Size | 66.5 mm |
| Weight (Approx.) | 6 kg |
| Size Standard | OEM Size |
| Packing | Plastic Bag, Box, Carton |
OEM Cross-Reference
Primary OEM Number: 3919565
This part is a direct replacement for the genuine Cummins piston bearing this number. Always verify the part number from your original component or engine manual before ordering.
Compatibility
This piston is specifically designed for the Cummins 6CT (6D114) diesel engine platform.
Primary Applications:
- Construction & Industrial Machinery: Excavators, loaders, bulldozers, and mining equipment.
- Power Generation: Standby and prime power generator sets (Gensets).
- Marine: Auxiliary and propulsion engines for marine vessels.
- Agriculture: Tractors and heavy farming equipment.
- Material Handling: Large forklifts and port equipment.
Global Supply & Distribution
We are a professional exporter of heavy-duty engine components with extensive experience in international logistics and trade compliance. Our supply chain is optimized for fast, reliable delivery to key industrial regions worldwide.
- Worldwide Shipping: We ship to all major global markets via air and sea freight.
- Key Markets Served: North America (USA, Canada, Mexico), Europe (UK, Germany, Netherlands), Asia-Pacific (Australia, Singapore, Japan), the Middle East (UAE, Saudi Arabia), and South America.
- Efficient Logistics: We ensure timely delivery to major ports and industrial hubs, with comprehensive export documentation provided.
- B2B Expertise: We understand the needs of distributors, workshops, and fleet managers, offering flexible MOQs and dedicated support.
Quality Assurance
Every piston undergoes strict quality control to guarantee performance and longevity.
- Manufacturing Standards: Produced in ISO-certified facilities using advanced machining and metallurgy.
- Warranty: Backed by a 6-month warranty against manufacturing defects.
- Testing & Documentation: Each batch is supported by a machinery test report. Video outgoing-inspection is available to provide transparency and confirm quality before shipment.
- Post-Sale Support: After-warranty service includes online technical support for installation and troubleshooting.
FAQ
Q: How do I confirm this piston is the correct part for my Cummins 6CT engine?
A: The surest method is to cross-reference the part number stamped on your original piston or listed in your engine’s service manual with our OEM number 3919565. The engine model (6CT/6D114) and chamber size (66.5mm) must also match.
Q: Is this piston sold as a single unit or as a set?
A> This piston is sold as a single item. For a complete engine overhaul, you will typically need a set matching the number of cylinders in your engine (e.g., 6 pistons for a 6CT). Please contact us for set pricing and availability of related components like rings and pins.
Q: What should I check during installation to ensure proper performance?
A> Prior to installation, always: 1) Clean the cylinder liner thoroughly. 2) Measure the piston clearance as specified in the engine service manual. 3) Ensure piston rings are correctly gapped and installed in the proper orientation. 4) Lubricate the piston skirt and rings with clean engine oil during assembly. We recommend professional installation for optimal results.
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 .