Reliable Engine Component Solutions for Heavy Equipment Maintenance and Overhaul
When it comes to maintaining the compression and efficiency of your Komatsu PC200-3 or PC200-5 excavator, the quality of your engine valves and seats is non-negotiable. We provide the 0374-1301 (also searched as 03741301) valve seat, specifically engineered for the S6D105 engine series.
This part is a critical element in the cylinder head assembly, ensuring a perfect seal during the combustion cycle. Whether you are performing a routine top-end inspection or a full engine rebuild, our OEM-standard replacements offer the thermal resistance and durability required for heavy-duty construction environments.
| Field | Details |
|---|---|
| Model NO. | Komatsu PC200-3, PC200-5, S6D105 Series |
| Part Number | 0374-1301 / 03741301 |
| Product Name | Engine Valve Seat / Intake Exhaust Component |
| Condition | Brand New, OEM Standard Replacement |
| Type | Cylinder Head Internal Component |
| Application | Engine rebuild, overhaul, maintenance |
| MOQ | 1 Piece |
| Stock Status | In Stock / Fast Dispatch |
| Packaging | Industrial Export Packing |
| Payment Terms | T/T, Western Union, MoneyGram |
| Delivery Methods | Express: DHL Fedex EMS UPS or by Air/ Sea |
| Feature | Our 0374-1301 Replacement | Standard Aftermarket Parts |
|---|---|---|
| Material Composition | High-Heat Alloy Steel (OEM Spec) | Standard Cast Iron / Mixed Steel |
| Precision Fit | Exact tolerance for S6D105 heads | Universal sizing (requires extra machining) |
| Thermal Stability | Resistant to 800C+ combustion temps | Prone to warping under heavy load |
| Wear Resistance | Tri-metal reinforced contact surface | Standard surface hardening only |
| Installation Support | Direct press-fit compatibility | Variable fitment issues |
| Inventory Support | Same-day dispatch available | Lead times often 7-14 days |
Q1: Why is my Komatsu PC200-5 losing power and blowing blue smoke?
A: This often indicates a failure in the valve seal or a worn valve seat like the 0374-1301. When the seat loses its integrity, compression leaks occur. We recommend checking the valve clearance and replacing worn seats during any cylinder head service to restore full engine compression.
Q2: Can I use 03741301 for a PC200-3 model?
A: Yes, the 0374-1301 is compatible across several generations of the S6D105 engine found in PC200-3 and PC200-5 machines. Always verify your engine serial number with our team before purchasing.
Q3: Why Choose This Engine Valve Seat?
A: Our 0374-1301 features an OEM-standard tri-metal structure. It is trusted by repair shops and equipment fleets globally for its long-term reliability and perfect fitment during complex engine overhauls.
Our team helps operators:
Identify potential risks during maintenance
Recommend suitable replacement parts if needed
Support both inspection advice and parts supply
We specialize in high-performance engine assemblies and precision components for the world's leading brands. Our core inventory focuses on Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai engines.
Whether you need a complete engine overhaul or specific repair components, we supply: Cylinder Liners, Pistons, Piston Rings, Main Bearings, Connecting Rod Bearings, Thrust Washers, Full Overhaul Gasket Kits, Fuel Injection Pumps, Injectors, Crankshafts, Turbochargers, Water Pumps, Oil Pumps, Cylinder Blocks, Cylinder Heads, and Connecting Rods.
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Quick Support: +86 13532379052
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