Product Overview

This is a premium piston ring set engineered for the Cummins QSX15 heavy-duty diesel engine. Manufactured to exact OEM specifications, this critical component ensures optimal engine compression, oil control, and longevity. We specialize in the global supply of high-quality engine parts, serving major industrial markets across North America, Europe, the Middle East, and Asia-Pacific with reliable shipping and export compliance.

Key Features & Benefits

• Precision Engineering: Manufactured to strict tolerances for a perfect fit and optimal sealing within the QSX15 cylinder.
• Enhanced Durability: Made from high-grade materials to withstand extreme temperatures and pressures, reducing wear and extending engine life.
• Superior Performance: Ensures maximum compression, minimizes oil consumption, and maintains efficient combustion for peak engine power and fuel economy.
• Direct OEM Replacement: Designed as a direct cross-reference for original part numbers, guaranteeing compatibility and reliable performance.
• Comprehensive Quality Control: Each set undergoes rigorous inspection and testing, supported by machinery test reports and video documentation.

Technical Specifications

OEM Cross-Reference

This piston ring set is a direct replacement for the following Cummins part numbers:

• Cummins 3683008
• Cummins 3681078
• Cummins 3682398

Always verify the specific part number required for your engine’s serial number before ordering.

Compatibility

Engine Model: Specifically designed for the Cummins QSX15 diesel engine platform.

Vehicle & Machinery Application: This part is suitable for a wide range of heavy-duty equipment powered by the QSX15 engine, including but not limited to:

• Heavy-Duty Trucks & Tractors
• Excavators and Loaders
• Bulldozers
• Industrial & Mining Equipment
• Buses and Coaches
• Large Forklifts and Container Handlers
• Generator Sets

Global Supply & Distribution

We are a trusted partner for B2B buyers and distributors worldwide. Our established logistics network ensures efficient delivery to key industrial regions.

• Worldwide Shipping: We export to all major markets, including North America (USA, Canada, Mexico), Europe (UK, Germany, Netherlands, Poland), the Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Singapore, Japan), and South America.
• Fast Delivery: Consolidated shipments to major ports and logistics hubs for faster clearance and inland distribution.
• Export Expertise: All documentation, including commercial invoices, packing lists, and certificates, is prepared to full international trade compliance standards for smooth customs clearance.

Quality Assurance

Our commitment to quality ensures you receive reliable parts that meet performance expectations.

• Manufacturing Standards: Produced in ISO-certified facilities using advanced machinery and quality-controlled materials.
• Comprehensive Warranty: Backed by a 6-month warranty against manufacturing defects.
• Rigorous Testing: Every production batch is subject to dimensional checks and material analysis. Machinery Test Reports and Video Outgoing-Inspection records are available to verify quality and build consistency.

FAQ

Q: How do I confirm this piston ring set is the correct part for my specific Cummins QSX15 engine?

A: The most reliable method is to cross-reference your engine’s serial number (ESN) and the existing part numbers on your current piston rings. This set replaces OEM numbers 3683008, 3681078, and 3682398. If unsure, consult your engine’s service manual or contact our technical support with your ESN.

Q: What is included in the packaging, and is installation guidance provided?

A: The piston ring set is packaged securely in a plastic bag within a box or carton. While basic part identification is included, professional installation by a qualified mechanic following the Cummins QSX15 service manual is required. We recommend proper cylinder honing and measurement during installation for optimal performance.

Q: Do you provide documentation for international customs and quality verification?

A: Yes. With every B2B order, we provide complete commercial documentation. Upon request, we can also supply the Machinery Test Report and video outgoing-inspection records as proof of quality and specification compliance for your internal QA processes.

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 .