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Product Introduction
The marine diesel engine piston liner kit is a comprehensive repair and overhaul solution designed for the core power cylinder assembly of marine propulsion and auxiliary engines. This precision-engineered kit typically includes high-grade cylinder liners, pistons with advanced anti-friction coatings, matching piston ring sets, and intake/exhaust valves. Manufactured from premium alloy cast iron and heat-resistant steel, each component is designed to restore original engine compression and thermal efficiency. Our kits are compatible with mainstream marine engine brands, especially optimized for the Weichai series, complying with CCS classification society certification standards to ensure long-term reliability in demanding maritime environments.
We supply full-range spare parts for marine main engines, auxiliary engines, oil purifiers, air compressors, turbochargers and other marine equipment. Both genuine original spare parts and high-quality OEM replacement parts are available.
Complete models & sufficient stock, supporting bulk supply for shipyards, ship owners and marine service companies worldwide.
WEICHAI
WP2,WP4,WP6,WP7,WP8,WP9,WP10,WP12,WP13,WP15,WD615,WD12,WD618,CW6200,TD226B
Our company specializes in providing comprehensive spare parts for all aforementioned brand Weichai marine diesel engines, including cylinder liners, pistons, piston rings, cylinder heads, intake and exhaust valves, valve seats, valve guides, overhaul gasket kits, fuel injectors, plungers, delivery valves, fuel injection pumps, crankshafts, connecting rods, main bearings, big end bearings, turbochargers, water pumps, oil pumps, and filtration elements. We offer both stock availability and customized supply options to meet the maintenance needs of various Weichai marine engine power systems.
Product Advantage
1. Integrated System Matching for Maximum Compatibility
Our piston liner kit provides a perfectly matched set of core components, ensuring optimal fitment between the piston, rings, and liner. This eliminates the risk of premature wear caused by mismatched clearances or material inconsistencies. As a complete overhaul solution, it simplifies the procurement process for ship owners and maintenance yards, ensuring that the entire cylinder assembly operates with the same high-level precision and durability as the original equipment.
2. Advanced Materials & Anti-Friction Coating Technology
The pistons feature a specialized molybdenum disulfide or graphite coating on the skirts, which significantly reduces friction during the critical engine startup and high-load phases. The cylinder liners are centrifugal cast from high-phosphorus alloy iron for superior wear resistance. This combination extends the component service life to 12,000+ hours, effectively resisting cylinder scuffing and thermal fatigue even when operating under the extreme pressures of marine diesel engines.
3. Precision CNC Machining & Strict Quality Control
Every component in the kit undergoes 5-axis CNC finish machining, with critical dimensional tolerances strictly controlled within 0.008mm. This ensures perfect gas-tight sealing and minimal oil consumption. Each kit completes rigorous quality checks, including ultrasonic flaw detection and material spectral analysis. Supplied with official CCS certificates, our products offer a field failure rate below 0.3%, providing ship crews with full confidence during installation and operation.
Product Uses
1. Comprehensive Cylinder Overhaul for Ocean-Going Vessels
In large container ships, tankers, and bulk carriers, the piston liner kit is the essential solution for major engine overhauls. By replacing the entire worn-out cylinder assembly, ship engineers can restore the engine's original power output, fuel economy, and emission levels. Our high-performance kits ensure that the propulsion system maintains steady and reliable operation during long-distance maritime transportation, preventing catastrophic engine failure and ensuring the vessel meets strict maritime safety and environmental regulations.
2. Rapid Restoration of Auxiliary Power and Fleet Readiness
Beyond main engines, these kits are vital for maintaining the auxiliary generators and harbor tug engines that rely on frequent start-stop cycles. The precision-matched components ensure rapid restoration of engine compression and performance, minimizing vessel downtime in port or during dry-docking. By providing a certified and durable overhaul solution, we help shipowners extend the life of their Weichai or international brand engines, ensuring operational readiness and long-term fleet profitability in complex maritime scenarios.
FAQ
Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q2. What is your terms of payment?
A: Usually T/T100% in short delivery, if the delivery is long 50% as deposit, and 50% before delivery.
We'll show you the photos of the products and packages before you pay the balance.
Q3. What is your terms of delivery?
A: EXW, FOB, CFR, CIF, DDU.
Q4. How about your delivery time?
A: Generally, it will take 7 to 10 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery
Q8: How do you make our business long-term and good relationship?
A: 1. We keep good quality and competitive price to ensure our customers benefit
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
