Product Overview

This is a premium-quality piston ring set engineered for Caterpillar C9 diesel engines, specifically used in 330D and 336D heavy equipment. We are a global supplier specializing in high-performance engine components, offering direct shipping to major industrial markets worldwide, including North America, Europe, the Middle East, and Asia-Pacific. This kit is designed to meet the rigorous demands of construction and mining applications.

Key Features & Benefits

• Premium Material Construction: Manufactured from high-grade alloy steel for superior tensile strength and heat resistance, ensuring longevity under extreme operating conditions.
• Precision Engineering: Machined to exact OEM tolerances for a perfect cylinder bore seal, optimizing compression and preventing oil blow-by.
• Enhanced Durability: Advanced surface treatments reduce friction and wear, extending the service life of both the rings and the cylinder liner.
• Optimal Engine Performance: Restores factory-level compression, fuel efficiency, and power output, crucial for maintaining equipment productivity.
• Complete Set Solution: Includes all necessary rings (347-2380, 347-2381, 347-2382) for a full piston assembly, simplifying procurement and ensuring component compatibility.

Technical Specifications

OEM Cross-Reference

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

• Caterpillar®: 347-2380, 347-2381, 347-2382
• Common Alternative/Kit Numbers: 347-2380 (Piston Ring), 347-2381 (Intermediate Ring), 347-2382 (Oil Ring)

Compatibility

This piston ring set is compatible with the following applications:

• Engine Model: Caterpillar C9 (6-cylinder, 8.8L diesel engine, including ACERT variants).
• Equipment Models: Caterpillar 330D Excavator, Caterpillar 336D Excavator.
• Typical Model Years: Applications for 330D/336D machines from the mid-2000s onward. Always verify your engine serial number for final confirmation.

Global Supply & Distribution

We facilitate seamless international B2B trade with a robust global logistics network. Our capabilities include:

• Worldwide Shipping: Reliable export to all major continents and industrial hubs.
• Key Markets Served: North America (USA, Canada, Mexico), European Union, United Kingdom, Australia, Southeast Asia, Middle East (UAE, Saudi Arabia), and South America.
• Efficient Logistics: Fast container and air freight services to major ports and airports, including Rotterdam, Los Angeles, Singapore, Dubai, and Hamburg.
• Trade Compliance: All shipments are prepared with professional commercial invoices, packing lists, and comply with international export regulations for smooth customs clearance.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities using precision CNC machinery and strict quality control protocols.
• Rigorous Testing: Each component undergoes dimensional inspection, hardness testing, and material verification to ensure it meets or exceeds original performance specifications.
• Warranty: Backed by a standard 12-month warranty against manufacturing defects, providing confidence and reliability for your fleet operations.

FAQ

Q1: Is this a complete set for one piston, and how many sets are needed for a full C9 engine rebuild?
A1: Yes, this listing includes the complete ring set (compression and oil rings: 347-2380, 347-2381, 347-2382) for a single piston. A full rebuild of the 6-cylinder Caterpillar C9 engine requires six (6) identical sets, one for each piston.

Q2: Are these rings compatible with both standard and oversized cylinder bores?
A2: This specific part number set is designed for standard bore size applications. For engines that have been machined or honed to an oversize, you must source the corresponding oversize piston ring set. Always measure your cylinder bore before ordering.

Q3: What are the critical installation steps to ensure proper performance of these rings?
A3: For optimal performance: 1) Ensure the cylinder liner is within OEM wear limits and properly honed. 2) Use a proper ring expander tool to avoid scratching or distorting the rings during installation. 3) Stagger the ring end gaps according to the engine manufacturer’s specifications (typically 120 degrees apart). 4) Follow the recommended engine break-in procedure after reassembly.

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 .