Product Details

Product Overview

We offer a premium quality, direct replacement engine piston specifically designed for the Caterpillar C9.3 diesel engine. This component is manufactured to meet or exceed OEM specifications, ensuring reliable performance and long service life in heavy-duty applications. Serving the global aftermarket, we ship to major industrial hubs across North America, Europe, Asia-Pacific, and the Middle East, providing fast and reliable logistics for B2B clients worldwide.

Key Features & Benefits

• OEM Standard Quality: Manufactured using high-strength aluminum alloy to ensure dimensional stability and resistance to thermal deformation.
• Enhanced Durability: Features advanced ring groove technology for improved oil control and reduced blow-by, extending engine life.
• Precision Engineering: CNC-machined to tight tolerances for perfect fitment, reducing installation time and preventing premature wear.
• Optimized Combustion: Designed with a specific bowl geometry to maximize fuel efficiency and power output for the C9.3 engine.
• Rigorous Testing: Every piston undergoes dimensional inspection and material hardness testing to guarantee reliability under high-stress conditions.

Technical Specifications

OEM Cross-Reference

This piston is a direct replacement for the following OEM and reference numbers:

• Caterpillar OEM: 3961539, 3570447
• Alternate Part Numbers: 396-1539, 357-0447

Compatibility

Engine Models:

• Caterpillar C9.3 (All variants including C9.3 ACERT)

Common Applications:

• Excavators: Cat 330, 336
• Wheel Loaders: Cat 950, 962
• Industrial Engines & Generator Sets

Year Range: Compatible with models produced from 2010 onward. Please verify engine serial number for exact fitment.

Global Supply & Distribution

We are a dedicated supplier to the international B2B market with a robust logistics network. Our shipping capabilities include:

• Worldwide Shipping: Fast delivery to major ports in North America (Los Angeles, Houston), Europe (Rotterdam, Hamburg), Asia-Pacific (Shanghai, Singapore), and the Middle East (Dubai, Jebel Ali).
• Industrial Centers: Direct shipping to inland industrial zones and mining regions upon request.
• Export Expertise: Experienced in international trade documentation, customs clearance, and Incoterms (FOB, CIF, DDP).
• Inventory Ready: Bulk stock maintained for immediate dispatch to minimize downtime for your operations.

Quality Assurance

• Manufacturing Standards: Produced in ISO 9001:2015 certified facilities.
• Material Certification: Raw materials sourced from accredited suppliers with full traceability.
• Testing: 100% dimensional inspection and hardness testing before packaging.
• Warranty: 12-month warranty against manufacturing defects, providing peace of mind for your fleet maintenance.

FAQ

Q1: Is this piston a direct replacement for the OEM part on my Cat C9.3 engine?

Yes, this piston (part numbers 3961539 and 3570447) is a direct replacement designed to OEM specifications. It is a drop-in fit for the C9.3 engine and requires no modifications. Always verify your engine serial number to ensure compatibility with your specific variant.

Q2: What is the recommended installation procedure for this piston?

Installation should be performed by a qualified diesel mechanic. We recommend using new piston rings and connecting rod bolts during installation. Lubricate the cylinder bore and piston skirt with clean engine oil before assembly. Torque the connecting rod bolts to the manufacturer’s specified settings (typically around 80-90 Nm for this engine class, plus a final angle turn). Always consult the Cat service manual for your specific engine model.

Q3: How can I ensure the long-term durability of this piston in my excavator?

To maximize piston life, adhere to the following maintenance practices: Use high-quality diesel fuel and engine oil meeting Cat E-4 or API CJ-4 standards. Maintain the engine’s cooling system to prevent overheating. Perform regular oil and filter changes at the recommended intervals (usually every 250-500 hours). Avoid sustained operation at maximum load without proper warm-up. These steps will significantly reduce piston wear and prevent scuffing or cracking.

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 .