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Product Details
Product Overview
This high-quality K21 Piston Ring, identified by part number 12033-4e110, is engineered for precision fitment and reliable performance in Nissan diesel engines. Designed as a direct replacement, this piston ring set is a critical component for maintaining compression, reducing oil consumption, and optimizing combustion efficiency in your industrial, construction, or marine equipment.
Manufactured to meet OEM specifications, this piston ring is suitable for a wide range of applications including construction machinery, agricultural equipment, generator sets, and marine engines. Whether you are performing a full engine overhaul or a targeted repair, this component ensures dependable operation and long service life under demanding working conditions.
Key Features & Benefits
OEM Specification Fitment: Manufactured to match the exact dimensions and tolerances of the Nissan K21 engine, ensuring a proper seal and minimal installation effort.
Durable Material Construction: Built from high-strength alloy steel with advanced surface treatment to resist wear, corrosion, and high-temperature degradation.
Enhanced Compression: Precision-ground ring faces provide optimal cylinder wall contact, improving compression ratios and engine power output.
Reduced Oil Consumption: Effective oil ring design minimizes oil bypass into the combustion chamber, lowering operating costs and emissions.
Versatile Application: Compatible with multiple industrial sectors including construction, agriculture, genset, marine, and material handling equipment.
Cost-Effective Solution: A reliable alternative to expensive genuine parts without compromising on quality or performance.
Technical Specifications
Specification
Details
Part Number
12033-4e110
Engine Model
K21
Type
Piston Ring Set
Engine Type
Diesel
Size
OEM Standard
Weight
2 kg
Material
Alloy Steel
Warranty
6 Months
Packing
Plastic Bag, Box, Carton
Place of Origin
Guangdong, China
OEM Cross-Reference
This piston ring set is directly cross-referenced to the following OEM part numbers:
12033-4e110 (Nissan)
Compatible with Nissan K21 engine original equipment specifications
Note: Always verify your engine’s specific requirements before ordering. While this part is designed as a direct replacement, confirmation of your engine’s serial number or existing part number is recommended.
Compatibility
This piston ring is commonly used for the following engine models and applications:
Engine Model: Nissan K21 Diesel Engine
Applications: Construction machinery, industrial equipment, agricultural tractors, generator sets, marine propulsion, and material handling equipment
Vehicle Types: Forklifts, excavators, loaders, pumps, and stationary power units
Fitment is inferred based on engine model compatibility. Please verify with your equipment manufacturer or service manual for exact application.
Global Supply & Distribution
Our brand piston rings are exported worldwide with a robust supply chain serving major industrial markets. We ship to North America, Europe, Asia-Pacific, the Middle East, Africa, and South America, ensuring fast delivery to key ports and industrial hubs including Los Angeles, Rotterdam, Shanghai, Dubai, and Santos.
With established logistics partnerships, we offer reliable shipping options including express courier, air freight, and sea freight. Our team has extensive experience in international trade compliance, customs documentation, and packaging for safe transit. Whether you need a single set or bulk orders for fleet maintenance, we provide consistent quality and timely delivery.
Quality Assurance
Each piston ring undergoes rigorous quality control procedures to ensure dimensional accuracy and material integrity. Our manufacturing process includes:
Machinery Test Report: Provided with every order to verify critical specifications
Video Outgoing Inspection: Available upon request for visual verification of product condition
Certifications: Products comply with international quality standards for diesel engine components
Warranty: 6-month warranty against manufacturing defects, giving you peace of mind for your investment
We prioritize quality from raw material selection through final packaging, ensuring each piston ring meets the demands of heavy-duty diesel applications.
FAQ
Q1: Is this piston ring compatible with my Nissan K21 engine? A1: Yes, part number 12033-4e110 is specifically designed for the Nissan K21 diesel engine. However, we recommend verifying your engine’s model number and existing ring dimensions to ensure complete compatibility. The K21 engine is commonly found in forklifts, small excavators, and industrial power units.
Q2: What is included in the piston ring set? A2: This set includes all necessary rings for one cylinder: typically two compression rings and one oil control ring. The set is packaged in a plastic bag and box to prevent damage during shipping. Please confirm if your engine requires additional rings for multi-cylinder applications.
Q3: How should I install these rings for best performance? A3: Proper installation requires cleaning the cylinder bore, checking ring end gaps, and lubricating rings with engine oil before assembly. Always use a ring expander tool to avoid distortion. After installation, a proper break-in period with moderate loads is recommended to seat the rings correctly. Refer to your engine service manual for specific torque and clearance values.
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