Ensure maximum compression and long-lasting durability with heavy-duty engine parts designed for demanding fleet operations. Our cylinder components are engineered for seamless fitment and peak performance.
Avoid compatibility issues on the assembly line. Review the precise component mapping designed specifically for heavy-duty commercial rebuilds.
Piston Set Parts:4923745 / 4089896 / 4089897
Cylinder Liner Part:3803544
Piston Ring Part:4976252
Minimum Order (MOQ):1 Piece
Condition:Brand New, OEM Standard Replacement
Packaging:Industrial Export Packing
| Parameter | Data Value & Compatibility Details |
|---|---|
| Model NO. | ISX15, QSX15 Series |
| Product Name | Liner Kits (Includes Cylinder Liners, Pistons, and Ring Sets) |
| Primary Part Numbers | 4923745, 4089896, 4089897, 3803544, 4976252 |
| Part Type | Heavy-Duty Diesel Engine Replacement & Rebuild Assembly |
| Stock Status | In Stock / Fast Dispatch Available |
| Applications | Heavy-Duty Highway Trucking, Industrial Power Units, Major Engine Overhauls |
| Payment Terms | T/T, Western Union, MoneyGram |
| Delivery Methods | Express Courier (DHL, Fedex, EMS, UPS), Air Freight Cargo, or Bulk Ocean Shipment |
When rebuilding high-horsepower commercial diesel engines, material composition directly dictates engine lifespan. See how our OEM-standard components compare against typical low-grade aftermarket parts.
| Procurement Benchmark | Our Premium OEM-Standard Replacement | Low-Grade Market Alternates |
|---|---|---|
| 1. Structural Material | Tri-metal steel structure matching original thermal expansion specs | Standard single-alloy or substandard metallurgy prone to premature crack fatigue |
| 2. Part Precision Fitting | Perfect matching for 4923745 / 4089896 / 4089897 pistons & 3803544 liners | Inconsistent micro-tolerances requiring manual block modification or machining |
| 3. Anti-Cavitation Protection | Advanced surface treatment on the 3803544 liner preventing liner pitting | Untreated outer walls vulnerable to rapid cavitation erosion and coolant leaks |
| 4. Piston Ring Tension | Premium 4976252 rings engineered for high oil-scraping efficiency | Low-tension rings causing elevated oil consumption and excessive blow-by |
| 5. Thermal Heat Resistance | Optimized dome geometry designed to withstand severe combustion pressure | Weak piston crown design prone to melting or collapsing under peak loads |
| 6. Rebuild Warranty Protection | Guaranteed dimensional consistency backed by robust manufacturer support | Zero performance guarantees; high risk of immediate catastrophic engine failure |
Whether you manage an active machine shop, maintain a logistics fleet, or distribute heavy-duty engine parts, our staff will deliver fast competitive quotes and logistics options directly to you.
Our team provides hands-on technical guidance to ensure your engine overhaul goes smoothly. We understand that liner pitting or compression loss requires immediate diagnostics.
✔Identify potential risks during maintenance, preventing major failure down the road
✔Recommend suitable replacement parts if needed, matching specific block configurations
✔Support both inspection advice and parts supply with fast technical feedback
Get expert answers to common mechanical issues related to Cummins ISX15 wet cylinder liners, piston blow-by, and overall overhaul components.
Blow-by occurs when hot combustion gases bypass the piston rings and escape into the oil pan. This is typically caused by worn-out piston rings like the 4976252 or deep vertical scratches on the 3803544 cylinder liner walls. Replacing the worn parts with a brand-new liner kit seals the combustion chamber, restoring proper compression levels.
Engine vibration creates tiny vapor bubbles in the coolant jacket surrounding the cylinder liner. When these bubbles collapse, they erode the metal, eventually causing coolant leaks into the oil. Our replacement 3803544 liners feature protective metallurgical coatings that dissipate vibration and resist cavitation damage.
While all these pistons fit various configurations of the Cummins ISX15 engine block, they must correspond to specific emissions requirements and compression ratios. Our team will verify your engine serial number (ESN) to ensure you receive the precise piston-liner match.
Our replacement assemblies are constructed using an OEM-standard tri-metal structure, ensuring exceptional heat dissipation and resistance to high-pressure thermal fatigue. This is why our cylinder components are trusted by repair shops & equipment fleets globally to keep commercial machinery on the road.
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