
Product Overview
This high-performance piston ring set is engineered as a direct replacement for Caterpillar 3306 diesel engines. Designed for durability and optimal compression, it is an essential component for engine overhauls and rebuilds in industrial, construction, and power generation applications. We supply this critical repair part globally, with established logistics to major markets including North America, Europe, the Middle East, Asia-Pacific, and Africa, ensuring reliable support for your fleet maintenance operations.
Key Features & Benefits
- Precision Engineering: Manufactured to exact OEM specifications to ensure perfect fitment and seamless integration with your Caterpillar 3306 engine block.
- Enhanced Durability: Constructed from high-grade materials to withstand extreme temperatures and pressures, providing extended service life and reducing downtime.
- Optimal Sealing & Performance: Designed to restore and maintain cylinder compression, improve oil control, and reduce blow-by for maximum engine efficiency and power output.
- Complete Set Solution: Includes all necessary rings for a full piston assembly, simplifying the procurement process for your rebuild kit.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 2W1709 |
| Alternate Part Number | 211-4321 |
| Engine Model | Caterpillar 3306 |
| Part Type | Piston Ring Set |
| Application | Engine Rebuild & Overhaul |
| Condition | New, Aftermarket Replacement |
OEM Cross-Reference
This piston ring set is a direct replacement for the following OEM part numbers:
- Caterpillar: 2W1709, 211-4321
Always verify part number compatibility with your specific engine serial number before purchase.
Compatibility
This piston ring set is designed for use in Caterpillar 3306 diesel engines. Common applications include:
- Equipment: Caterpillar track-type tractors (D6, D7), wheel loaders, motor graders, off-highway trucks, and stationary power units.
- Industrial Uses: Generator sets, marine propulsion engines, and industrial power plants utilizing the 3306 platform.
- Compatible with various configurations of the 3306 engine family used across multiple generations of equipment.
Global Supply & Distribution
We are a trusted supplier for international B2B clients, specializing in heavy-duty engine components. Our streamlined export process ensures compliance with international shipping and customs regulations.
- Worldwide Shipping: We ship via air and sea freight to all major global markets.
- Key Market Hubs: Fast containerized delivery to major ports in Rotterdam, Los Angeles, Singapore, Dubai, and Sydney.
- Regional Support: Established supply chains to support mining operations in Australia & Africa, construction in the Middle East & North America, and industrial sectors across Europe and Asia.
- Bulk & Wholesale: Competitive FOB/CIF pricing available for large-quantity orders and distributor partnerships.
Quality Assurance
Our commitment to quality ensures you receive reliable parts that meet the demands of heavy-duty operation.
- Manufacturing Standards: Produced in ISO-certified facilities using precision tooling and strict quality control protocols.
- Material Certification: Raw materials are sourced from certified suppliers to guarantee strength, thermal stability, and wear resistance.
- Performance Testing: Components undergo dimensional checks and material hardness testing to verify conformance to specifications.
- Warranty: Backed by a standard warranty against manufacturing defects. Contact our sales team for specific warranty terms.
FAQ
Q: How do I confirm this piston ring set is compatible with my specific Caterpillar 3306 engine?
A: The primary identifiers are the part numbers 2W1709 or 211-4321. For absolute certainty, cross-reference this number with your engine’s service manual or provide your engine’s serial number to our technical support team for verification. Variations in piston design can occur across different production years.
Q: What is included in this piston ring set?
A: This is a complete ring set for one piston, typically including the required compression rings and oil control rings. It is supplied as a kit ready for installation during an engine rebuild or overhaul. For a full engine set, please inquire about quantity discounts.
Q: What are the critical installation tips for these rings?
A: Always ensure the cylinder liner is within specified wear limits and properly honed. Carefully follow the ring gap spacing instructions (typically staggering the ring end gaps around the piston circumference) as per the engine service manual. Use proper ring installation tools to avoid scratching or damaging the rings during assembly.
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 .