As a source manufacturer specializing in export trade, we offer custom development and direct sales of various engine cylinder liners. Trust us as your reliable partner for high-quality, precision-engineered components.
CATERPILLAR 330D Cylinder Liner | ISUZU 4BG1 Cylinder Liner | CUMMINS B5.9-C Cylinder Liner | KOMATSU 6D102 Cylinder Liner
We proudly offer a premium, high-quality alternative to the genuine Komatsu Thermostat for the 6D105 engine, widely used in machinery like the Small Komatsu 200-3 (PC200-3) Excavator. This component is crucial for maintaining optimal engine temperature, effectively addressing common overheating or slow warm-up issues caused by a failing original unit. The corresponding part number is clearly identified as 6732-61-4600 (and the non-hyphenated version, 6732614600).
OEM Fitment: Engineered to match the exact specifications of the Komatsu 6D105 engine.
Precision Control: Ensures the coolant reaches and maintains the optimal 88°C operating temperature, preventing severe engine damage.
Durability: Built with corrosion-resistant materials for reliable long-term performance in demanding construction environments.
Direct Replacement: Designed for quick and easy installation in the Komatsu PC200-3 Excavator cooling system.
Quality Assured: A proven, high-quality substitute for the original equipment manufacturer (OEM) part.
| Field | Detail |
|---|---|
| Model NO. | 6D105 |
| Application | Komatsu Excavator PC200-3 |
| Certification | ISO9001 |
| Condition | New, High-Quality Replacement |
| Product Name | Thermostat |
| Transport Package | Carton |
| Specification | 88°C (Part Number: 6732-61-4600) |
| Trademark | HTHM (Honour Time High Machinery) |
| Origin | China |
| Production Capacity | 5000PCS/Year |
| Payment Terms | T/T, Western Union, MoneyGram |
| Delivery Methods | Express: DHL, FedEx, EMS, UPS or by Air / Sea |
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Honour Time Machinery Limited is a leading international exporter specializing in high-performance CUMMINS, KOMATSU, CATERPILLAR, ISUZU, KUBOTA, YANMAR, and WEICHAI engine assemblies and a full range of spare parts. Our extensive inventory ensures that whether you need a Liner Kit, a complete Engine Overhaul Kit, or precision components like the Piston Ring Set, we have the quality replacement to meet your operational demands.
We maintain stock of essential items including Cylinder Liner, Piston, Piston Ring, Crankshaft Bearing, Connecting Rod Bearing, Thrust Plate, Gasket Head, and full Gasket Kit. Beyond the core structure, we supply high-performance flow components like the Diesel Pump, Fuel Injector, Water Pump, Oil Pump, and crucial air management parts such as the Turbocharger. We also provide large, precision-machined parts including Cylinder Block, Cylinder Head, Connecting Rod, and the Crankshaft itself, ensuring a comprehensive solution for any repair or maintenance job.
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Liner Kit
Piston
Piston Ring
Gasket Kit
Gasket Head
Crankshaft
Valve Guide
Nozzle
Bearing
Pressure Switch
Flameout Solenoid
Monitor
Radiator
Main Valve
Belt
Engine Bearing
Cylinder Block
Valve Seat
Accelerator Motor
Transmitter
Fan Cooling
| Brand | Supported Models |
|---|---|
| KOMATSU | 3D82, 3D84, 4D105, 6D95, 6D108, 6D110, 4D84, 4D95, 6D102, 6D105, 6D114, 6D170 |
| KOBELCO | J05E, 6D34T, 6D16, J08E, 6D22T, 6D24T, 6D16T, 6D34 |
| CATERPILLAR | 3114, 3116, C4, C6, 3064T, S6K, C7, C-9, C13 |
| MITSUBISHI | 4D34, 4D24, K4M, S3Q2, 6D16, 6D24, S4KT, 6D40 |
| ISUZU | 3LD1, 4LE1, 4BG1, 4HK1, 6SD1, 6WG1, 4LE2, 4JB1, 6BG1, 6HK1, 6WF1 |
| YANMAR | 4D88E, 4TNE84, 4TNV88, 4TNV94L, 4TNE88, 4TNE94, 4TNV98, 4TNV106 |
| HINO | J05E, J08E, V25C, EF750, P11C, V21C, H06CT, H07D |
| CUMMINS | QSB6.7, QSM11-C, B5.9-C, B3.9-C, QSM11, C8.3-C |
| VOLVO | D6D, D6E, D9E, D12D, D7D, D7E, D12E, D16D |
Piston Ring:Installed in the piston groove within the Cylinder Block. Example: Komatsu PC200-8 6D107 Piston Ring. The ring seals the combustion chamber and transfers heat.
Gasket Head:A crucial seal installed between the Cylinder Head and the Cylinder Block. Example: Caterpillar 320D C6.4 Gasket Head. Prevents leakage of coolant and combustion gas.
Turbocharger:A forced induction device installed on the engine's exhaust manifold. Example: Cummins QSB6.7 Turbocharger. Increases power output by forcing more air into the combustion chamber.
Flameout Solenoid:Located on the Diesel Pump or injection system. Example: Isuzu 4JB1 Flameout Solenoid. Controls the fuel supply to shut down the engine.
Main Valve:Typically found within the Hydraulic Control Valve body. Example: Kubota KX080 Main Valve. Directs hydraulic oil flow to actuators (cylinders/motors).
Accelerator Motor:Installed on the engine body near the throttle or governor. Example: Komatsu PC200-7 6D102 Accelerator Motor. Electronically controls engine speed (RPM).
Valve Guide:A component pressed into the Cylinder Head. Example: Yanmar 4TNV94L Valve Guide. Guides the valve stem movement.
Connecting Rod Bearing:Installed between the connecting rod and the Crankshaft. Example: Caterpillar 3116 Connecting Rod Bearing. Supports the rotational movement of the crank.
Oil Pump:Located inside the engine, usually at the bottom near the oil pan. Example: Isuzu 6BG1 Oil Pump. Circulates lubricating oil throughout the engine.
Radiator:Mounted at the front of the machine, part of the Cooling System. Example: Weichai WD615 Engine Radiator. Dissipates heat from the engine coolant.
Issue: The Caterpillar 320D excavator with a C7 engine starts emitting excessive black smoke under load. This commonly indicates an incomplete combustion issue, which can lead to power loss and engine damage.
Treatment/Solution: Check the air intake system first. The most common cause is a clogged Air Filter, leading to a lean fuel-to-air ratio. Replace the air filter element. If the problem persists, inspect the Fuel Injector Nozzles for wear or clogging, as incorrect spray patterns can prevent proper fuel atomization. A diagnostic check on the Turbocharger is also necessary to ensure it's providing sufficient boost pressure.
Regular Oil Sampling: For heavy machinery like the Komatsu PC400-7, implement a scheduled engine oil analysis program. Testing the used oil for contaminants (metals, soot, coolant) provides early warnings of major component wear, such as failure in Engine Bearings or a breach in the Gasket Head. This proactive approach significantly extends the life of the engine assembly.
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