Product Overview

This premium 6CT cylinder liner is engineered to meet the rigorous demands of Cummins diesel engines powering heavy-duty industrial and commercial vehicles worldwide. As a trusted global supplier, we provide direct shipping to major markets across North America, Europe, the Asia-Pacific region, and the Middle East, ensuring reliable parts availability for fleet operators, equipment dealers, and engine rebuilders.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM dimensions (235.5mm) for a perfect fit and optimal engine performance, ensuring proper compression and oil control.
• Superior Durability: Constructed from high-grade cast iron alloy with advanced heat treatment, providing exceptional resistance to wear, scuffing, and thermal distortion for extended service life.
• Enhanced Heat Dissipation: Optimized wall design promotes efficient cooling, reducing the risk of overheating and maintaining stable engine temperatures under heavy loads.
• Micro-Finish Honing: The internal bore features a precise cross-hatch pattern to facilitate proper piston ring seating, reduce oil consumption, and minimize break-in time.
• Direct OEM Replacement: A direct-fit, high-quality alternative to genuine Cummins parts, offering significant cost savings without compromising on performance or reliability.

Technical Specifications

OEM Cross-Reference

This cylinder liner is a direct replacement for the following genuine and alternative part numbers. Ensure compatibility by cross-referencing with your engine’s documentation.

• 3948095 (Primary Reference)
• 3800328
• 5404408
• 3944344
• 3907792
• 3919937

Compatibility

This liner is designed for Cummins 6CT series diesel engines. These engines are commonly found in a wide range of heavy-duty applications, including but not limited to:

• Heavy-Duty Trucks: Long-haul freight and dump trucks.
• Construction & Mining Equipment: Excavators, wheel loaders, bulldozers.
• Industrial & Material Handling: Forklifts and stationary power units.
• Passenger Transport: Buses and coaches.

Note: Always verify the specific engine model and serial number for final fitment confirmation.

Global Supply & Distribution

We specialize in seamless international B2B logistics for automotive and industrial parts. Our established supply chain ensures efficient delivery to your nearest port or directly to your facility.

• Worldwide Shipping: Regular shipments to North America (USA, Canada, Mexico), Europe (UK, Germany, Netherlands), Asia-Pacific (Australia, Singapore, Japan), and the Middle East (UAE, Saudi Arabia).
• Fast Delivery to Hubs: Expedited options available to major logistics hubs like Los Angeles, Rotterdam, Singapore, and Dubai.
• Export Compliance: All documentation, including commercial invoices, packing lists, and certificates of origin, is professionally prepared for smooth customs clearance.
• Bulk & Container Orders: Competitive FOB/CIF pricing for container loads (FCL) and consolidated less-than-container loads (LCL).

Quality Assurance

We are committed to supplying components that meet the highest standards of performance and reliability.

• Manufacturing Standards: Produced in ISO-certified facilities using precision CNC machining and automated quality control systems.
• Inspection & Testing: Each batch undergoes rigorous dimensional checks, hardness testing, and visual inspection. Video outgoing-inspection and machinery test reports are available upon request.
• Warranty: Backed by a 6-month warranty against manufacturing defects, providing peace of mind for your investment.

FAQ

Q1: How do I confirm this cylinder liner will fit my specific Cummins 6CT engine?
A1: The most reliable method is to match the part number stamped on your old liner or listed in your engine’s service manual with the OEM cross-reference numbers provided above. The 235.5mm dimension is standard for this series, but verifying the part number is crucial.

Q2: What is the recommended installation procedure for this liner?
A2: Professional installation is highly recommended. Key steps include thoroughly cleaning the cylinder block bore, checking bore distortion, applying the correct sealant (if required for a wet sleeve design), and using a proper liner press tool to ensure it is seated squarely and to the correct protrusion height. Always follow the OEM service manual.

Q3: Do you provide technical support or compatibility documentation?
A3> Yes. For B2B clients, we can provide detailed specification sheets and, where available, installation guides. For complex fitment questions, we recommend consulting with your engine rebuilder or mechanic, and we are happy to supply any manufacturing documentation we have to assist them.

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 .