Product Overview

This is a premium replacement piston, part number 5343091, engineered for the Cummins QSL9.3 heavy-duty diesel engine. As a leading global supplier of industrial engine components, we provide reliable parts for major markets worldwide, including North America, Europe, the Asia-Pacific region, and the Middle East, ensuring your equipment maintains peak performance.

Key Features & Benefits

• Precision Engineered: Manufactured to exact OEM specifications for a perfect fit and optimal engine performance.
• Superior Durability: Constructed from high-grade materials to withstand extreme pressures and temperatures within the combustion chamber.
• Enhanced Heat Dissipation: Designed for efficient heat transfer to prevent overheating and ensure long-term reliability.
• Optimized for Performance: Contributes to maintaining proper compression ratios, fuel efficiency, and power output in the QSL9.3 engine.
• Global Stock Availability: Supported by our international logistics network for fast delivery to major industrial hubs and ports.

Technical Specifications

OEM Cross-Reference

This part is a direct replacement for the following OEM number:

• Cummins: 5343091

Always verify the part number from your original component or engine serial plate before ordering to ensure correct fitment.

Compatibility

This piston is specifically designed for use in:

• Engine Model: Cummins QSL9.3 diesel engine.
• Typical Applications: Commonly found in heavy machinery such as excavators, wheel loaders, mining equipment, and industrial power units utilizing the QSL9.3 platform.

Global Supply & Distribution

We specialize in the international export of heavy equipment parts. Our streamlined supply chain ensures efficient shipping to key markets across the globe, including the Americas, EU, ASEAN nations, and the GCC. We offer consolidated container and air freight options with comprehensive export documentation and compliance for smooth customs clearance to major ports and industrial centers worldwide.

Quality Assurance

Every piston is produced under strict quality control protocols to meet or exceed industry performance standards. Components undergo dimensional checks and material analysis to ensure reliability. We stand behind our parts with a standard warranty, providing confidence for B2B buyers and fleet managers in the durability of their investment.

FAQ

Q: How do I confirm this piston is the correct part for my Cummins engine?
A: The primary identifier is the part number 5343091. Cross-reference this number with the specification from your engine’s service manual or the original part. The engine model must be a QSL9.3 for guaranteed compatibility.

Q: Is this a complete piston assembly, and what is included?
A> This part is typically the piston body. For a complete overhaul, piston rings, wrist pins, and circlips are often sold separately. Please confirm the product scope with our technical sales team for your specific repair needs.

Q: What are the recommended installation procedures?
A> Professional installation by a qualified technician is crucial. Always follow the OEM service manual for the QSL9.3 engine. This includes proper cylinder honing, ring gap measurement, and correct lubrication during assembly to ensure longevity and prevent engine damage.

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 .