Direct Factory Pricing on 6204-31-2121 Piston and 6204312202 Ring Sets — Premier Machinery Parts Export
As a source manufacturer and direct factory supplier, Honour Time offers full custom development and manufacturing services for all types of Cylinder Liners and sleeves. We guarantee exceptional quality for the global export market, ensuring perfect fitment for heavy-duty applications.
Komatsu PC200-8 Cylinder Liner Caterpillar 320D Cylinder Liner Cummins B5.9 Cylinder Liner Kit
Below are the confirmed specifications for the premium engine components offered by Honour Time Machinery Limited, ensuring you receive the correct, high-quality replacement parts for your Komatsu 4D95L (Engine Model No: 4D95L).
| Component | Part Number (W/ Symbol) | Part Number (No Symbol) | Key Specification |
|---|---|---|---|
| Piston No. | 6204-31-2121 / 6204-32-2310 | 6204312121 / 6204322310 | Bore Diameter: 95 mm, Comp Height: 55 mm |
| Liner No. | 6204-21-2100 | 6204212100 | Total Length: 180 mm, Surface Treatment: Phosphating |
| Ring Set No. | 6204-31-2202 | 6204312202 | Ring Groove: 3.0K/2.0/4.0, No. of Cylinders: 4 |
| Piston Pin & Bush | 35 x 75 mm Pin, 6204-31-3210 Bushing | 6204313210 | OEM Replacement Quality (RIK, TP, NPR Equivalent options available) |
Searching for a Komatsu 4D95L engine overhaul kit or a reliable diesel engine parts supplier? Honour Time delivers genuine quality 6204-31-2121 piston set components with guaranteed fitment. Our global export service ensures you get the best direct factory price engine parts for your machinery.
Honour Time Machinery Limited is a specialized global engine parts supplier, focusing on the professional wholesale and export of engine assemblies and spare parts for leading construction machinery brands. Our commitment is to provide factory direct pricing and superior product quality for the entire engine system.
Major Engine Brands
We specialize in parts for Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai diesel engines.
Core Component Portfolio
Engine Assembly, Cylinder Liner, Piston, Piston Ring, Crankshaft, Cylinder Block, Cylinder Head, Connecting Rod, Main Bearing, Con Rod Bearing, Thrust Washer, Overhaul Gasket Kit, Fuel Pump, Injector, Turbocharger, Water Pump, Oil Pump.
Looking for heavy duty engine parts wholesale? Contact us for Cummins B3.3 overhaul kit pricing, Komatsu SAA6D107E-1 water pump replacement, Isuzu 4BG1 injector source, or the best deals on Weichai WP10 cylinder block assembly. We offer solutions for Kubota V2203 connecting rod bearing kit and Yanmar 4TNV94L overhaul gasket kit.
1. Piston Ring: Seals the combustion chamber and transfers heat. Location: Piston Grooves. Caterpillar D8T Piston Ring.
2. Fuel Injector: Atomizes and sprays fuel into the combustion chamber. Location: Cylinder Head. Cummins QSB6.7 Fuel Injector.
3. Main Bearing: Supports the crankshaft within the engine block. Location: Cylinder Block/Crankshaft. Komatsu PC400-7 Main Bearing.
4. Turbocharger: Compresses intake air to increase power output. Location: Exhaust Manifold. Yanmar 4TNV98 Turbocharger.
5. Water Pump: Circulates coolant throughout the engine system. Location: Front of Engine Block. Isuzu 6HK1 Water Pump.
6. Cylinder Head: Seals the top of the cylinder block, containing the valves and injectors. Location: Top of Engine Block. Weichai WP12 Cylinder Head.
7. Thrust Washer: Limits the axial movement of the crankshaft. Location: Crankshaft/Block. Kubota D1105 Thrust Washer.
8. Connecting Rod: Links the piston to the crankshaft. Location: Inside the Engine Block. Caterpillar C7 Connecting Rod.
9. Oil Pump: Supplies pressurized oil to various engine components. Location: Bottom of Engine Block. Cummins ISX15 Oil Pump.
10. Overhaul Gasket Kit: Complete set of gaskets and seals for a full engine rebuild. Location: Throughout the Engine. Komatsu PC300-7 Overhaul Gasket Kit.
Fault: A Komatsu PC200-8 excavator with a Cummins QSB6.7 engine begins to rapidly overheat during normal operation, even when the coolant level is full.
**Solution:** First, inspect the Water Pump. A common cause is a failed impeller or a slipping belt. If the pump is spinning but not circulating coolant efficiently, the internal components have failed. Replacement with a high-quality, factory-spec Cummins QSB6.7 Water Pump is mandatory. Also, check the Cummins PC200-8 Gasket Kit for potential head gasket failure, which can introduce combustion gases into the cooling system, another major cause of overheating. Proper diagnosis and genuine parts prevent costly engine damage.
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