Komatsu Excavator Engine Hood Lock 20Y-54-41982 | Floating Switch 7861-92-4800

Solving abnormal failure issues for Komatsu Hydraulic Pumps and Door Locks with Premium Domestic Substitutes

Factory Direct Source: Customized Engine Cylinder Liner Solutions

Source Factory | Foreign Trade Export | OEM & ODM Support

We specialize in manufacturing and developing high-performance cylinder liners for global machinery. Our featured products include:

  • Komatsu PC200-8 Engine Cylinder Liner

  • Caterpillar E320D Cylinder Liner Kit

  • Cummins 6BT5.9 Heavy Duty Cylinder Sleeve

  • Isuzu 4HK1 Engine Liner Assembly

Our factory provides customized development for various engine types to ensure perfect fitment and long-lasting durability.

Primary Product Details & Specifications

BrandProduct NameModel / ApplicationPrimary Part NumberFormatted Part Number (No Symbols)
KomatsuEngine Hood Lock / Cylinder Head LockHydraulic Pump Door Lock20Y-54-4198220Y5441982
KomatsuEngine Hood Lock AssemblyPC Series Excavators198-54-419821985441982
KomatsuProtective Cover LockConstruction Machinery20Y-54-7149120Y5471491
KomatsuFloating Switch / Level SensorLiquid Level Control7861-92-48007861924800

Product Features & Advantages

  • High Precision Compatibility: Designed specifically for Komatsu PC series, ensuring a 100% match for the 20Y-54-41982 lock system.

  • Industrial Grade Materials: Constructed with high-strength alloy steel to resist corrosion and withstand harsh construction environments.

  • Optimized Performance: Solves abnormal door jamming and loose engine hood vibrations common in high-hour machines.

  • Durable Float Mechanism: The 7861-92-4800 floating switch features high-sensitivity components for accurate fluid level monitoring.

  • OEM Standard Reliability: Meets or exceeds original manufacturing standards at a more competitive cost, ideal for global trade export.

Honour Time Machinery Limited - Engine Parts Catalog

We are a leading provider of premium engine assemblies and spare parts for world-class brands including Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai.

CategoryProducts
Engine CoreCylinder Liner Kit, Piston, Piston Ring, Crankshaft, Cylinder Block, Cylinder Head, Connecting Rod
Sealing & GasketsOverhaul Gasket Kit, Head Gasket, Oil Seals
Fuel SystemDiesel Fuel Pump, Fuel Injector, Nozzle
BearingsCrankshaft Main Bearing, Connecting Rod Bearing, Thrust Washer
Cooling & TurboWater Pump, Oil Pump, Turbocharger, Radiator, Fan Cooling
Electrical & ControlAccelerator Motor, Monitor, Pressure Switch, Flameout Solenoid, Transmitter

Long-Tail SEO Keywords: Komatsu PC200-7 Engine Overhaul Kit, Isuzu 6HK1 Fuel Injector Replacement, Caterpillar C9 Turbocharger Supply, Cummins QSB6.7 Cylinder Head Assembly, Yanmar 4TNV98 Piston Ring Set, Kubota V2403 Water Pump Price, Weichai WD615 Engine Gasket Kit, Heavy Duty Excavator Radiator, Hydraulic Pump Pressure Sensor, Excavator Monitor Panel Repair, Diesel Engine Oil Pump Wholesale, Connecting Rod Bearing Standard Size, High Pressure Fuel Pump for Komatsu, Construction Machinery Solenoid Valve, Aftermarket Caterpillar Engine Block, Isuzu 4BG1 Liner Sleeve, Yanmar Engine Valve Seat, Kubota D1105 Overhaul Parts, Weichai Engine Spare Parts Supplier, Global Export Engine Parts Factory.

Global Model Compatibility Chart

BrandCompatible Engine Models
Komatsu3D82, 3D84, 4D105, 6D95, 6D108, 6D1104D84, 4D95, 6D102, 6D105, 6D114, 6D170
Caterpillar3114, 3116, C4, C6, 3064T, S6KC7, C-9, C13
Isuzu3LD1, 4LE1, 4BG1, 4HK1, 6SD1, 6WG14LE2, 4JB1, 6BG1, 6HK1, 6WF1
Yanmar4D88E, 4TNE84, 4TNV88, 4TNV94L4TNE88, 4TNE94, 4TNV98, 4TNV106
Mitsubishi4D34, 4D24, K4M, S3Q2, 6D16, 6D24S4KT, 6D40

Construction Machinery Technical Glossary

  • Turbocharger (Caterpillar 320D): A turbine-driven induction device that increases engine efficiency by forcing extra air into the combustion chamber.

  • Floating Switch (Komatsu PC200): Installed in the coolant or fuel tank to monitor liquid levels and prevent dry-run damage.

  • Flameout Solenoid (Cummins 6CT): An electromechanical device that cuts off fuel supply to stop the engine immediately.

  • Main Bearing (Isuzu 6HK1): Supports the crankshaft and ensures smooth rotation under heavy loads within the cylinder block.

  • Cylinder Liner (Yanmar 4TNV98): A removable cylindrical sleeve placed in a block to form the inner wall of a cylinder.

  • Accelerator Motor (Komatsu PC300): Controls the throttle position to adjust engine RPM based on operator demand.

  • Piston Ring (Kubota V2203): Seals the combustion chamber and regulates oil consumption between the piston and liner.

  • Oil Pump (Weichai WP10): Circulates engine oil under pressure to the rotating bearings and pistons for lubrication.

  • Gasket Head (Caterpillar C7): Located between the cylinder head and block to prevent leakage of fuel, coolant, and gases.

  • Radiator (Isuzu 4JB1): A heat exchanger used for cooling internal combustion engines.

Technical Support: Troubleshooting & Maintenance

Common Failure: Abnormal Coolant Level Warning on Komatsu PC200-8.

Solution: Inspect the 7861-92-4800 Floating Switch. If the monitor shows a constant low level despite a full tank, the internal sensor or wiring may be faulty. Replace with our high-quality switch to restore accurate monitoring.

Maintenance Tip: For the Caterpillar E320D, ensure the engine hood lock 20Y-54-41982 is lubricated every 500 working hours to prevent mechanical jamming and rust in coastal or humid environments.

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Company Profile: Honour Time Machinery Limited is a professional supplier of high-end engine components. We focus on providing durable solutions for Cummins, Komatsu, Caterpillar, and Isuzu machinery. Our mission is to deliver OEM-standard quality at factory-direct prices to the global construction industry.

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