CAT 200B Main Valve 3G-2720 & Float Switch 7861-92-4800

High Precision OEM Grade Replacement Parts for Excavators and Engine Systems

Caterpillar 3116 Liner KitKomatsu PC200B PartsCAT 200B Main Valve 3G2720Float Switch 7861924800Isuzu 6HK1 Cylinder BlockYanmar 4TNV94L Piston

Factory Direct Engine Cylinder Liner Solutions

Honour Time Machinery Limited is a source factory and leading exporter specializing in high-performance engine parts. We provide customized development for various engine liners and overhaul kits, ensuring perfect compatibility with international brands.

  • Source Factory: Direct from China for the best wholesale prices.

  • Customization: Support for specialized engine bore sizes and materials.

  • Global Export: Professional logistics for North America, Europe, and Asia.

  • Cummins QSM11

  • Brand & ModelCylinder Liner KeywordsService Type
    Caterpillar 3064TCAT 3064T Engine LinerOEM Custom Development
    Komatsu 6D102Komatsu 6D102 Cylinder SleeveWholesale Direct Export
    Yanmar 4TNV98Yanmar 4TNV98 Engine LinerHigh-Performance Replacement
    Cummins QSM11 Heavy Duty LinerFactory Direct Sales

Detailed Parts Reference & Normalized Part Numbers

Our database includes exact matches for CAT and Komatsu parts. We provide both symbolized and non-symbolized part numbers for efficient indexing and search.

Product NameMachine ModelPart Number (Standard)Part Number (Search-Friendly)
Main Valve / Relief ValveCaterpillar 200B3G-27203G2720
Float Switch / SensorKomatsu PC200B7861-92-48007861924800
Gasket Head / KitCaterpillar 3116107-78321077832
Engine Bearing SetIsuzu 4HK18-98011-605-08980116050

Full Spectrum of Engine Components Available

Honour Time Machinery Limited specializes in engine assemblies and high-quality spare parts for world-leading brands.

BrandCore Products Provided
CATERPILLARLiner Kit, Piston, Piston Ring, Gasket Kit, Gasket Head, Crankshaft, Radiator, Main Valve, Belt
KOMATSUValve Guide, Nozzle, Bearing, Pressure Switch, Flameout Solenoid, Monitor, Accelerator Motor
ISUZU / YANMARCylinder Block, Valve Seat, Transmitter, Fan Cooling, Water Pump, Oil Pump, Turbocharger
CUMMINS / WEICHAIFuel Injector, Diesel Pump, Connecting Rod, Thrust Washer, Con Rod Bearing, Overhaul Kit

Engine Compatibility List

ManufacturerEngine Models & Parts Support
CATERPILLAR3114, 3116, C4, C6, 3064T, S6K, C7, C-9, C13
KOMATSU3D82, 3D84, 4D105, 6D95, 6D102, 6D105, 6D108, 6D110, 6D114, 6D170, 4D84, 4D95
ISUZU3LD1, 4LE1, 4BG1, 4HK1, 6SD1, 6WG1, 4LE2, 4JB1, 6BG1, 6HK1, 6WF1
KOBELCOJ05E, 6D34T, 6D16, J08E, 6D22T, 6D24T, 6D16T
YANMAR4D88E, 4TNE84, 4TNV88, 4TNV94L, 4TNE88, 4TNE94, 4TNV98, 4TNV106

5 Key Features of CAT 200B Main Valve

  1. Universal Application: Optimized for CAT 200B Excavators and other 200 series construction machinery.

  2. Precision Engineering: Direct replacement for OEM part 3G-2720 / 3G2720 ensuring perfect fit.

  3. Durability: Manufactured using high-strength alloy steel for extreme hydraulic pressure environments.

  4. Fault Mitigation: Effectively resolves abnormal hydraulic pressure and system response lag.

  5. Quality Tested: Every unit undergoes rigorous pressure testing to meet or exceed OEM standards.

Professional Glossary & Component Locations

  • Turbocharger: Found on the exhaust manifold. Example: CAT 320D S6K Turbocharger.

  • Fuel Injector: Situated in the cylinder head. Example: Komatsu PC300-7 6D114 Fuel Injector.

  • Crankshaft: Main rotating shaft at the bottom of the block. Example: Isuzu 4HK1 Engine Crankshaft.

  • Water Pump: Front of the engine block. Example: Cummins B5.9-C Water Pump.

  • Main Valve: Located within the main control valve assembly. Example: CAT 200B 3G-2720 Relief Valve.

  • Gasket Kit: Sealing components for engine block/head. Example: Yanmar 4TNV94L Overhaul Gasket Kit.

  • Accelerator Motor: Near the throttle assembly. Example: Komatsu PC200-6 Throttle Motor.

  • Piston Rings: Fitted on the piston head inside the cylinder. Example: Kubota V2403 Piston Ring Set.

  • Oil Pump: Inside the oil sump/pan. Example: Weichai WD615 High Pressure Oil Pump.

  • Connecting Rod: Links piston to crankshaft. Example: Isuzu 6BG1 Connecting Rod.

Expert Maintenance & Troubleshooting

Troubleshooting Case: CAT 200B Engine Overheating & Sensor Alarms

Diagnosis: A common fault in CAT 200B machines is the "Water Level Alarm" triggered by a failing float switch. If the sensor 7861-92-4800 (7861924800) is damaged, the monitor will show abnormal readings even if coolant levels are sufficient.

Solution: Replace the faulty float switch with our high-quality replacement. Additionally, inspect the radiator and water pump for blockages. Regular maintenance of the CAT 3116 / S6K engine gasket kits prevents internal leaks.

Product Specifications & Commercial Terms

ApplicationCaterpillar Excavator 200B / Komatsu Engine Systems
Condition100% Brand New High-Quality Replacement
CertificationISO 9001 Quality Standard Compliance
Production Capacity5000 PCS / Year
Transport PackageNeutral Carton or Custom Export Packaging
Payment TermsT/T, Western Union, MoneyGram
Delivery MethodsDHL, Fedex, EMS, UPS, Air Freight, Sea Cargo

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Honour Time Machinery Limited is a premier supplier of engine parts for Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai. We offer comprehensive solutions for engine overhaul kits, cylinder liners, pistons, and fuel systems with global export expertise.


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