6BT5.9 Engine Overhaul Kit 3904166 Cylinder Liner | Standard Engine Cylinder Liner Replacement
The C5718631 piston ring is suitable for 6LTAA9.3 diesel engines. It helps maintain compression pressure, reduce oil consumption, and optimize heat dissipation efficiency, thus aiding in restoring engine power performance. It is suitable for construction machinery, industrial power systems, and engine maintenance applications.
6LTAA9.3 Engine Piston Ring Specifications
| State |
Brand New |
| Product Name |
Engine Piston Rings |
| Part Number |
C5718631 |
| Material |
Alloy Cast Iron / Wear-Resistant Surface Treatment |
| Size |
STD |
| Minimum Order Quantity |
1 set |
| Payment Method |
Western Union, T/T |
| Shipping Method |
UPS/DHL/EMS/TNT/FedEx |
Applications: Construction machinery, industrial power equipment, generator sets
Applicable Engines: 6LT9.3, 6LTAA9.3
Features and Advantages
Designed for the 6LTAA9.3 platform, suitable for high-compression diesel engine conditions.
Optimized combustion chamber sealing, reducing compression leakage.
Helps restore engine output power and starting performance.
Suitable for engine overhauls, refurbishments, and preventative maintenance.

C5718631 Engine Piston Ring Kit (Standard Size) for 6LTAA9.3 Diesel Engines
Guangzhou Minshun Machinery Equipment Co., Ltd.
We specialize in the sales and service of diesel engine assemblies and construction machinery parts. Our product line covers engine assemblies, filtration systems, electronic control components, hardware accessories, wiring harnesses, and electrical accessories. Our service area includes Canada, the United States, the United Kingdom, Mexico, the Netherlands, Kazakhstan, Mongolia, Russia, Australia, Malaysia, Turkey, Indonesia, Singapore, Thailand, South America, South Africa, and other countries and regions.
Our Product Range
| Engine Rebuild Kit |
Turbochargers |
Engine Diesel Pumps |
Engine Controllers (ECU) |
| Cylinder Blocks |
Cylinder Heads |
Water Pumps |
Injectors |
| Starter Motors |
Filters |
Other Engine Accessories |
Excavator Hydraulic Pumps |
| Swivel Components |
Distributor Valves |
Travel Motor Assemblies |
Chassis Components and Other Accessories |


Frequently Asked Questions
Q1: What is your main products?
A1: We are specialized in the excavator engine spare parts, for example Main cylinder block, cylinder head, crankshaft, Engine assembly, piston, cylinder liner, piston ring, camshaft, connecting rod, oil pump, water pump, valve series products, movement, etc. almost all parts of the entire engine.
Q2: Do you test all products before shipping?
A2: Yes, we conduct 100% testing before shipping.
Q3: Which engine models is this Engine Piston Rings compatible with?
A3: This product is designed for specific diesel engine models. If you can provide the engine model or original part number, we can confirm compatibility before shipping to avoid incompatibility issues.
Q4: Can you provide cross-reference information for OEM part numbers?
A4: Yes, we support original part interchange. Please provide the original part number, and we will verify the replacement part accordingly.
Q5: What should I do if there is a problem with the product?
A5: Our products undergo professional testing and are of very stable quality. If you do find any problems, please contact us. We have a professional after-sales team to help you solve the problem.
Why Choose Us?
• Over 20 years of focus on construction machinery – offering a full range of excavator assemblies and accessories.
• Get a Quote – Our professional team will provide you with a quote immediately upon receiving your requirements.