Kubota V1902 Engine Essential Performance Components

The Kubota V1902 Diesel Engine is a staple in various industrial and power generation applications. Restoring its power requires the precise fit and superior material quality of components like the Piston and Piston Ring Set.

• Kubota V1902 Piston: Engineered for longevity under continuous operation, identified by the specific Part Number 19274-21110. Searchable without the hyphen as 1927421110.

• Kubota V1902 Piston Ring Set: Crucial for maintaining compression and oil control, corresponding to the OEM Part Number 19274-21050 (search term: 1927421050).

• We offer complete V1902 Engine Overhaul Kits that include Crankshaft Bearings, Water Pumps, and Thrust Washers.

Partner with Honour Time Machinery Limited for reliable Kubota Engine Parts and superior support for your Generator Set Maintenance requirements.

Our Global Reach: Product Inventory and High-Value Long-Tail Keywords

As a global source and exporter, Honour Time Machinery Limited is the premier supplier for Engine Total Assembly and components for these key brands:

Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai.

Our comprehensive engine component list for effective engine rebuilds:

• Cylinder Liner (Engine bore repair)

• Piston (1927421110)

• Piston Ring (1927421050)

• Crankshaft Main Bearing (Lower engine journals)

• Connecting Rod Bearing (Load-bearing shells)

• Thrust Washer (Crankshaft axial alignment)

• Engine Overhaul Gasket Kit (Complete sealing set)

• Diesel Pump (Fuel supply)

• Fuel Injector (Combustion input)

• Crankshaft (Engine rotational mass)

• Turbocharger (Forced air induction)

• Water Pump (Engine cooling)

• Oil Pump (Engine lubrication)

• Cylinder Block (Engine housing)

• Cylinder Head (Valve train housing)

• Connecting Rod (Piston linkage)

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Construction Machinery Component Glossary: Function and Location

Definitions for 10 key engine and machine components, detailing their location and providing a specific equipment example:

1. Hydraulic Cylinder Piston: Internal component of the Hydraulic Cylinder Barrel. Caterpillar 307E Boom Cylinder Piston Rod – Converts hydraulic pressure into linear force.

2. Cylinder Block Heater: Installed in a freeze plug hole or the Engine Block Coolant Jacket. Cummins ISM Engine Block Heater Element – Electrically heats the coolant for cold starting.

3. Track Adjuster Assembly: Located at the Front of the Undercarriage, connected to the Idler. Komatsu PC35MR-3 Track Adjuster Grease Fitting – Uses grease pressure to maintain track chain tension.

4. Hydraulic Filter Bypass Valve: Inside the Hydraulic Oil Filter Housing. Isuzu 4LE2 Engine Oil Filter Bypass Spring – Allows oil flow if the filter is completely clogged, preventing oil starvation.

5. Fuel Sedimenter/Water Separator: Mounted on the Engine Frame or Fuel Line before the Lift Pump. Kubota V1902 Fuel Water Separator Filter Element – Removes water and large particles from the diesel fuel.

6. Crankshaft Pulley: Attached to the Front of the Crankshaft. Yanmar 4TNE94 Engine Crankshaft Pulley Bolt – Drives the fan, water pump, and alternator via belts.

7. Radiator Overflow Bottle: The expansion tank for the Engine Cooling System. Weichai WP10 Radiator Coolant Overflow Hose – Stores excess coolant when the engine heats up.

8. Swing Motor Seal Kit: Found inside the Hydraulic Swing Motor. Komatsu PC200-8 Swing Motor Shaft Seal – Seals the rotating shaft that drives the slewing ring.

9. Transmission Speed Sensor: Screwed into the Transmission Housing. Caterpillar D6K2 Transmission Speed Sensor O-Ring – Measures the rotational speed for shifting control.

10. Intercooler (Charge Air Cooler): Located between the Turbocharger Compressor Outlet and the Engine Intake Manifold. Isuzu 6UZ1 Engine Intercooler Hose Clamp – Cools compressed air before it enters the cylinders.

Technical Service Insight: Lack of Hydraulic Power

Fault: Komatsu PC200-8 Excavator Slow Travel and Swing

Fault Detail:

A Komatsu PC200-8 Excavator (SAA6D107E engine) experiences slow or weak travel (track drive) and reduced swing speed, although boom and stick functions are only moderately affected. The engine does not appear heavily loaded during travel/swing.

Solution/Treatment Plan:

1. Check Travel and Swing Pilot Pressure: Travel and swing functions are heavily reliant on proper pilot oil pressure to fully shift the Control Valve Spools for maximum flow. Use a gauge to verify the pilot pressure output from the pilot manifold. If low, check the Pilot Filter and the Pilot Relief Valve for contamination or incorrect setting.

2. Troubleshoot Travel/Swing Control Valve Spools: The spools responsible for travel and swing may not be shifting completely or may be leaking internally due to damaged seals or scoring. This is especially true if the issue is isolated to these specific functions. Remove the affected control valve sections (or the valve itself) and inspect the Spool and Seal Kit for damage.

3. Inspect Swing Motor/Travel Motor: If the pressure to the motors is good, the issue could be internal motor leakage. Excessive internal bypass within the Swing Motor Assembly or Travel Motor will cause slow operation and generate heat. This requires replacing the Motor Rotary Group or the complete motor assembly. We supply crucial motor seal kits for this repair.

Connect with Honour Time Machinery Limited: Your Global Component Partner

For certified, high-quality engine components, including the reliable Kubota V1902 Piston 19274-21110 and the precision Ring Set 19274-21050, connect with Honour Time Machinery Limited. We are your dedicated Source Manufacturer, guaranteeing Factory Direct pricing and expert support for all your Foreign Trade Export needs globally.

Global Supplier of Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, Weichai Parts and Assemblies.