Premium Komatsu Excavator Thermostat 600-421-6630 & Float Switch 7861-92-4800: High-Quality Replacement Parts Solved Engine Overheating Issues

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Custom Manufacturing and Factory Direct Engine Liners

As a source factoryHonour Time Machinery Limited specializes in the custom development and factory direct sales of various high-quality engine cylinder liners for global export. We are your reliable engine parts manufacturer, providing parts like Cylinder Liner to clients worldwide. Whether you need a Cummins QSB6.7 Cylinder Liner, a Komatsu 6D107 Cylinder Liner, a Caterpillar C7 Cylinder Liner, or an Isuzu 4HK1 Cylinder Liner, we guarantee superior quality and compatibility. We are committed to being your one-stop solution for heavy equipment engine parts supplier needs, ensuring the performance of your machinery.

Komatsu Engine Core Components: Thermostat and Float Switch

Ensure optimal engine temperature control and fluid level management in your Komatsu heavy equipment with our premium replacement parts. We supply high-specification alternatives for critical components like the Komatsu Thermostat and Komatsu Float Switch, essential for preventing major failures such as engine overheating. Our products are engineered to meet or exceed OEM standards, offering a cost-effective yet reliable solution for maintenance and repair shops globally.

Featured Komatsu Products & Part Numbers

Product NameBrandPart Number (Standard)Part Number (No Symbols)Features & Application
ThermostatKomatsu600-421-66306004216630Engine temperature regulation. Use for excavator or construction machinery; ensures quick warm-up and prevents engine overheating issues.
ThermostatKomatsu6610-11-65006610116500High-precision thermal component. Critical for maintaining efficient fuel consumption and emissions control.
ThermostatKomatsu6127-11-65206127116520Durable brass/steel construction. Designed for demanding applications and long service life.
Float SwitchKomatsu7861-92-48007861924800Accurate fluid level sensing (e.g., fuel or hydraulic tank). Prevents equipment damage from low fluid levels. Use for excavator or Komatsu D155 main valve repair.

Comprehensive Range of Heavy Equipment Engine Parts

We pride ourselves on offering a complete inventory of engine parts and components for major construction machinery brands. Our main products cover everything required for a full engine overhaul or routine maintenance. Trust us for your excavator engine overhaul kit price research and sourcing of reliable parts.

Key Engine Parts Inventory

  • Liner Kit (Cylinder Liner)

  • Piston and Diesel engine piston and ring set

  • Piston Ring

  • Gasket Kit (Full or Top End)

  • Gasket Head (Weichai engine cylinder head gasket)

  • Crankshaft

  • Valve Guide and Valve guide and seat repair

  • Nozzle / Injector

  • Bearing (Cummins QSB6.7 connecting rod bearing)

Auxiliary and System Parts

  • Pressure Switch

  • Flameout Solenoid (Flameout solenoid valve function)

  • Monitor

  • Radiator (Engine cooling system radiator)

  • Main Valve

  • Belt

  • Engine Bearing (Crankshaft and bearing set price)

  • Cylinder Block

  • Valve Seat

  • Accelerator Motor, Transmitter, Fan Cooling, and Other Engine Parts Model We Can Provide

Compatible Engine Models We Supply Parts For

We specialize in providing parts for a vast array of heavy equipment engine models, including both older and current generation machines. Find your genuine vs aftermarket engine parts solution here.

BrandModel Coverage
Komatsu3D82, 3D84, 4D105, 6D95, 6D108, 6D110, 4D84, 4D95, 6D102, 6D105, 6D114, 6D170
KOBELCOJ05E, 6D34T, 6D16, J08E, 6D22T, 6D24T, 6D16T, 6D34
CATERPILLAR3114, 3116, C4, C6, 3064T, S6K, Caterpillar C7 engine rebuild kit, C-9, C13
Mitsubishi4D34, 4D24, K4M, S3Q2, 6D16, 6D24, S4KT, 6D40
ISUZU3LD1, 4LE1, 4BG1, Isuzu 4HK1 gasket set availability, 6SD1, 6WG1, 4LE2, 4JB1, 6BG1, 6HK1, 6WF1
Yanmar4D88E, 4TNE84, 4TNV88, Yanmar 4TNV98 water pump replacement, 4TNE88, 4TNE94, 4TNV94L, 4TNV106
HINOJ05E, J08E, V25C, EF750, P11C, V21C, H06CT, H07D
CUMMINSQSB6.7, QSM11-C, B5.9-C, B3.9-C, QSM11, C8.3-C
VOLVOD6D, D6E, D9E, D12D, D7D, D7E, D12E, D16D

Engineering Machinery Component Glossary and Keywords

Understanding where each part functions is crucial for accurate diagnosis and repair. Here are 10 key component definitions and common applications from our inventory:

  1. Piston Ring: Installed in the Piston grooves in the engine cylinder. Cummins B5.9-C Piston Ring seals combustion pressure and controls oil consumption.

  2. Gasket Head: Installed between the Cylinder Block and Cylinder HeadKomatsu 6D102 Gasket Head ensures a perfect seal for combustion chambers and oil/water passages.

  3. Flameout Solenoid: Installed on the fuel pump or engine block. Caterpillar 3116 Flameout Solenoid controls fuel cutoff to stop the engine.

  4. Valve Guide: Pressed into the Cylinder HeadIsuzu 6BG1 Valve Guide guides the movement of the intake and exhaust valves.

  5. Crankshaft: Located in the main bearing saddles within the Cylinder BlockKubota V3307 Crankshaft converts linear piston motion into rotational motion.

  6. Water Pump: Attached to the front of the Cylinder Block and driven by a belt. Yanmar 4TNE94 Water Pump circulates coolant through the engine.

  7. Connecting Rod Bearing: Installed between the connecting rod and the crankshaft journal. Weichai WP10 Connecting Rod Bearing reduces friction during rotation.

  8. Turbocharger: Mounted to the exhaust manifold. Komatsu PC400-8 Turbocharger increases engine power by forcing more air into the combustion chamber.

  9. Main Valve: Typically located within the hydraulic control valve bank. Caterpillar 320D Main Valve directs hydraulic fluid to cylinders and motors.

  10. Float Switch: Installed in the fuel tank, hydraulic tank, or radiator reservoir. Komatsu PC200-8 Float Switch 7861924800 signals fluid level status to the monitor.

Troubleshooting and Maintenance Guide

Proper maintenance prevents costly downtime. Here is a brief guide focusing on common excavator issues:

Excavator Engine Failure Example

Problem: Komatsu PC200-8 (6D107 Engine) experiencing persistent high-temperature alarms and coolant loss.
Solution: This often points to a faulty Thermostat housing assembly Komatsu (6004216630) or a cracked cylinder head gasket. Inspect the thermostat's opening temperature and look for combustion gas in the cooling system. Replacement with a new Komatsu Gasket Head and Thermostat is often required to restore proper engine function.

General Engine Maintenance Tips

  • Check the condition of the radiator and coolant hoses regularly to ensure efficient cooling system performance.

  • Use only high-quality Engine Bearing and Crankshaft and bearing set price products during rebuilds to maximize engine life.

  • Monitor the Engine oil pump assembly price and replace it if oil pressure drops below specification.

  • Ensure all electrical components, such as the Pressure Switch, are functioning correctly to protect the engine.

Product Details and Ordering Information

We adhere to strict quality control standards for all our Heavy equipment engine parts supplier products. Please find our general product specification and trade terms below.

DetailSpecification
Model NO. / Product NameKomatsu Thermostat, Komatsu Float Switch, and Other Engine Parts
ApplicationExcavator and Heavy Construction Equipment
ConditionNew
CertificationISO 9001, Quality Assured
OriginChina (Factory Direct Supply)
Production Capacity5000PCS/Year (Engine Parts)
Transport PackageCarton
Payment TermsT/T, Western Union, MoneyGram
Delivery MethodsExpress: DHL, Fedex, EMS, UPS or by Air/Sea

Click to Leave an Online Message for Us

We welcome inquiries from repair shops, construction companies, and international trade partners. Fill out the form below to receive a personalized quote for your Caterpillar C7 engine rebuild kit or Isuzu 4HK1 gasket set availability query.

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Honour Time Machinery Limited is a leading supplier specializing in Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai engine assemblies and premium replacement parts, ensuring global clients receive high-quality, reliable machinery components.


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