Finding the right internal engine components for a K50 engine requires precision. When your equipment is down, you do not need generic parts; you need the exact 3630916 or 3804885 piston assembly that meets original structural integrity. Whether you are performing a mid-life overhaul or a complete engine rebuild, these pistons ensure your high-horsepower unit returns to peak thermal efficiency.
Our inventory focuses on OEM standard replacements that bypass the excessive markup of brand-name packaging while maintaining the exact metallurgical specifications required for industrial-grade combustion cycles.
| Attribute | Details |
|---|---|
| Model NO. | K50 / KTA50 / QSK50 |
| Product Name | Piston (Engine Internal Parts) |
| Part Number | 3630916 / 3804885 (Also compatible as 3630916 without hyphen) |
| Type | Diesel Engine Component |
| Condition | Brand New, OEM Standard Replacement |
| MOQ | 1 Piece |
| Stock Status | In Stock / Fast Dispatch |
| Payment Terms | T/T, Western Union, MoneyGram |
| Delivery Methods | Express: DHL Fedex EMS UPS or by Air/ Sea |
| Packaging | Industrial Export Packing |
| Application | Engine rebuild, overhaul, maintenance for Mining, Marine, and Power Gen |
Before you finalize your procurement for 3630916 3804885, consider how our solutions compare to high-cost agency parts and low-tier alternatives.
| Selection Criteria | Our OEM Standard 3630916 | Market Low-Tier Parts | Agency Genuine Parts |
|---|---|---|---|
| Material Composition | High-strength aluminum alloy / Steel Crown | Standard cast aluminum | Identical to OEM |
| Thermal Resistance | Excellent (Industrial duty) | Moderate (Prone to cracking) | Excellent |
| Dimensional Accuracy | Precision CNC Matched | Varied tolerances | Precision Matched |
| Inventory Availability | Ready to Ship Today | Uncertain | Often backordered |
| Procurement Cost | Factory-Direct Value | Cheap (High risk) | Premium Brand Markup |
| Service Life | Full Maintenance Cycle | Short / Unpredictable | Full Maintenance Cycle |
Not sure how this issue affects your equipment? Our technical team helps operators navigate complex repair decisions to minimize downtime.
✔ Identify potential risks during maintenance to prevent catastrophic engine failure.
✔ Recommend suitable replacement parts based on your specific engine serial number (ESN).
✔ Support both inspection advice and global parts supply chain logistics.
Question: How do I diagnose if my 3630916 piston needs replacement during a K50 engine overhaul?
Answer: Look for signs of "piston scuffing" on the skirt or carbon build-up in the ring grooves. If you experience excessive blow-by or blue smoke, the 3804885 piston seal may be compromised. Using a micrometer to check for "out-of-round" wear is essential; if measurements exceed OEM limits, immediate replacement is required to avoid liner damage.
Question: Can I mix 3630916 with older piston versions in the same engine block?
Answer: It is strongly recommended to replace pistons in full sets to maintain engine balance and uniform compression ratios across all cylinders. Mixing different weight or design pistons can lead to crankshaft vibration and premature bearing wear.
Question: Why Choose This Piston (3630916 / 3804885)?
Answer: Our units feature an OEM-standard tri-metal structure and enhanced cooling galleries. These components are Trusted by repair shops & equipment fleets globally for heavy-duty mining and marine applications.
About Our Professional Parts Supply
We specialize in heavy-duty engine solutions, providing comprehensive support for Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai power units. From complete engine assemblies to individual precision components, we ensure your machinery stays operational.
Core Inventory Keywords: K50 Cylinder Liner, 3804885 Piston Kit, Engine Overhaul Gasket Set, KTA50 Crankshaft Main Bearing, QSK50 Connecting Rod Bearing, Industrial Engine Thrust Washer, Diesel Injection Pump Replacement, Fuel Injector Nozzle for K50, Turbocharger for High Horsepower Engines, Water Pump Assembly, Oil Pump Replacement, K50 Cylinder Block, Cylinder Head Replacement, Forged Connecting Rod, Engine Valve Train Parts, Camshaft Bushing, Aftercooler Core, Oil Cooler Element, Flywheel Housing, Engine Gear Train.
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