
Product Overview
This is a premium MAHLE S6K piston ring set, a critical component for the overhaul and restoration of diesel engines. Designed as a direct replacement for OEM part number 34317-19011, this set is engineered to restore compression, control oil consumption, and ensure reliable performance in demanding applications. We supply this high-quality engine part globally, with extensive experience serving key industrial markets across North America, Europe, Asia-Pacific, and the Middle East.
Key Features & Benefits
- Precision Engineering: Manufactured to exact OEM specifications for a perfect fit and optimal performance in S6K series engines.
- Enhanced Durability: Made from high-grade materials to withstand high temperatures and pressures, ensuring long service life and reduced downtime.
- Superior Sealing: Designed to restore cylinder compression to factory levels, improving engine power and fuel efficiency.
- Controlled Lubrication: The oil control ring effectively manages oil film on the cylinder wall, preventing excessive oil consumption and smoke.
- Complete Set Solution: Includes all necessary rings for a full piston overhaul, simplifying the procurement process for workshops and rebuilders.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 34317-19011 |
| Engine Model | MAHLE S6K, S6KT |
| Primary Application | Caterpillar E320B Excavator |
| Component Type | Piston Ring Set (Complete Set) |
| Material | High-Strength Cast Iron / Chrome-plated (Typical for OEM-spec rings) |
| Condition | New, Aftermarket (OEM Quality) |
OEM Cross-Reference
This piston ring set directly replaces the following OEM part numbers:
- MAHLE: 34317-19011
- Caterpillar®: 343-1719 (Please verify with your CAT dealer for latest number)
Note: Always cross-reference with your engine serial number for final confirmation before purchase.
Compatibility
This set is specifically designed for engines utilizing the MAHLE S6K/S6KT piston configuration. Its primary application is for the diesel engine in the:
- Caterpillar E320B Excavator
It is suitable for engine overhaul kits, rebuilds, and performance restoration projects for this model. Compatibility may extend to other equipment using the same MAHLE S6K engine platform; verification of the engine serial number is strongly recommended.
Global Supply & Distribution
We are a trusted global supplier of heavy-duty engine components. Our logistics network ensures reliable delivery to major industrial hubs and ports worldwide.
- Worldwide Shipping: We export to all major continents, including North America (USA, Canada, Mexico), South America, Europe (EU and UK), Asia-Pacific (Australia, Singapore, Japan), and the Middle East (UAE, Saudi Arabia).
- Efficient Logistics: We offer various shipping methods (air, sea, express courier) to major ports and cities to meet your project timelines.
- Trade Compliance: All shipments are prepared with complete and accurate commercial documentation (invoice, packing list, certificate of origin) to ensure smooth customs clearance.
- B2B Focus: We specialize in bulk orders for workshops, machinery dealers, and fleet operators, offering competitive pricing for quantity purchases.
Quality Assurance
We partner with manufacturers who adhere to stringent quality control standards to ensure every part meets or exceeds performance expectations.
- Manufacturing Standards: Produced using advanced manufacturing techniques to replicate OEM dimensions, tolerances, and material properties.
- Rigorous Testing: Components undergo material hardness tests, dimensional checks, and visual inspections to guarantee integrity.
- Performance Warranty: This part is backed by a standard warranty against manufacturing defects. Please contact us for specific warranty terms applicable to your region.
FAQ
Q: How do I confirm this piston ring set will fit my specific Caterpillar E320B engine?
A: The most reliable method is to match the part number 34317-19011 with your engine’s overhaul kit documentation or the original rings removed. For absolute certainty, provide your engine’s model and serial number to our technical team for verification before ordering.
Q: Is this a complete set for one piston?
A: Yes, this is a complete piston ring set, typically including the compression rings and oil control ring required for a single piston. For a full engine overhaul, you will need one set per cylinder. Please confirm the quantity needed for your project (e.g., 6 sets for a 6-cylinder engine).
Q: What are the critical steps for installing these rings to ensure proper performance?
A: Proper installation is key. Ensure the cylinder liner is within wear limits, honed to the correct cross-hatch pattern, and thoroughly cleaned. Carefully check ring end-gap according to the engine service manual. Use proper ring installation tools to avoid nicking or twisting the rings, and stagger the ring end gaps around the piston circumference as specified.
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 .