Your Trusted Source for Custom Engine Cylinder Liners

As a Source Manufacturer, Honour Time Machinery Limited supports custom development for all types of diesel engine cylinder liners. We offer factory direct sales and are specialists in export trade. Enhance engine longevity with our premium liners compatible with Cummins QSB6.7 Cylinder Liner, Komatsu 6D105 Liner Kit, Caterpillar 3116 Piston Liner, and Isuzu 4HK1 Engine Liner Set.

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Reliable Solutions: CAT Tensioner and Komatsu Float Switch

We specialize in offering robust, high-performance aftermarket engine parts for heavy construction machinery. Our featured products, the CAT Tensioner and the Komatsu Float Switch, are engineered to meet or exceed OEM specifications, ensuring reliable operation of your Caterpillar excavator and Komatsu earthmoving equipment. Key replacement part numbers include the 2197489, 2197489, 3441722, 3441722, 3691255, 3691255, 1937732, 1937732, 3368955, and 3368955 for the CAT Tensioner, and the critical 7861-92-4800 (also known as 7861924800) for the Komatsu Float Switch. These parts are vital for engine timing and accurate fluid level monitoring, preventing costly breakdowns.

Product Features (CAT Tensioner & Komatsu Float Switch)

• Precision Timing Control: The CAT Tensioner maintains optimal belt tension, preventing slippage and ensuring precise valve timing for Caterpillar 3116 and C7 engines.

• Accurate Fluid Monitoring: The Komatsu Float Switch (7861-92-4800) provides reliable coolant or hydraulic fluid level detection for Komatsu PC200-8 excavators.

• Heavy-Duty Application: Designed specifically for excavator and construction machinery use, handling extreme vibrations and operating temperatures.

• OEM Equivalent Quality: Manufactured with durable materials to ensure a long service life, matching the performance of the original CAT and Komatsu parts.

• Seamless Integration: Direct-fit replacement for the listed CAT Tensioner part numbers (3441722, 3691255) and Komatsu Float Switch.

Engine Parts Inventory: Liner Kits to Turbochargers

Honour Time Machinery Limited is your global partner for Caterpillar, Komatsu, Cummins, Isuzu, Kubota, Yanmar, and Weichai engine assembly and spare parts. Our extensive product line covers every critical component, ensuring you find the right genuine OEM equivalent engine spares.

We stock complete diesel engine overhaul kit components, including the Cylinder Liner, Piston, Piston Ring, Crankshaft Main Bearing Set for Excavator, Connecting Rod Bearing Replacement, Thrust Washer, and Full Gasket Kit Supplier. For fuel and air systems, we supply the Fuel Injection Pump Repair, Injector, Crankshaft, Turbocharger Assembly Export, and for cooling and lubrication, the Engine Water Pump Wholesale, Oil Pump for Construction Machinery, Cylinder Block, Cylinder Head Repair Parts, and Connecting Rod. We are specialists in heavy duty engine rebuild parts, aftermarket cylinder liner wholesale, high performance piston ring set, excavator hydraulic pump parts, construction equipment filter replacement, reliable engine sensors, aftermarket cooling fan blade, reliable excavator travel motor, genuine hydraulic seal kits, diesel engine parts exporter, engine rebuild components supplier, and quality piston ring wholesale.

Comprehensive Engine Parts and Model Coverage

Primary Engine Parts We Supply

Supported Engine Models

Engineering Machinery Accessories: Definitions and Maintenance Tips

10 Key Component Definitions (The Caterpillar, Komatsu, Cummins Advantage)

• Liner Kit: The set of components forming the cylinder wall. Installed in the Cylinder Block. Example: Komatsu PC300-7 S6D114 Liner Kit.

• Piston Ring: Seals the combustion chamber and transfers heat. Installed around the Piston. Example: Caterpillar 320D C6.4 Piston Ring Set.

• Crankshaft: Converts the linear motion of the piston into rotary motion. Located in the Cylinder Block/Oil Pan area. Example: Cummins QSB6.7 Crankshaft Assembly.

• Valve Guide: Guides the movement of the engine valve. Pressed into the Cylinder Head. Example: Isuzu 6HK1 Valve Guide.

• Nozzle (Injector): Sprays fuel into the combustion chamber. Installed in the Cylinder Head/Manifold. Example: Yanmar 4TNV98 Fuel Injector Nozzle.

• Pressure Switch: Monitors system pressure (oil or air). Located on the Engine Block or Hydraulic System. Example: Kubota V2203 Oil Pressure Switch.

• Flameout Solenoid: Controls the fuel supply to stop the engine. Attached to the Fuel Injection Pump. Example: Weichai WD615 Flameout Solenoid.

• Radiator: Dissipates heat from the engine coolant. Located at the front of the Cooling System. Example: Komatsu PC200-8 Radiator Assembly.

• Valve Seat: Provides a sealing surface for the valve. Inserted into the Cylinder Head. Example: Caterpillar 330D C9 Valve Seat.

• Transmitter: Converts a physical measurement (e.g., pressure) into an electrical signal. Located on various Engine Systems. Example: Cummins QSM11 Oil Pressure Transmitter.

Excavator Maintenance and Troubleshooting

Troubleshooting: Komatsu PC300-8 Engine Overheating. A common issue is engine overheating in the Komatsu PC300-8 excavator. Failure Solution: Often, this is due to a faulty Thermostat, a failing Water Pump, or a blocked Radiator. Check the coolant level (critical area for the 7861924800 Float Switch), inspect the fan belt (replace if worn—use a new Belt), and ensure the Radiator is free of debris.

Maintenance Tip: Diesel Engine Preservation. For all your Cummins, Caterpillar, and Isuzu engines, prioritize using genuine Gasket Kit components during overhauls and regularly change the Engine Bearing and Main Valve fluids according to manufacturer schedules. This simple maintenance prevents premature wear of the Cylinder Block and Crankshaft.

Product Details and Online Community

Key Specifications Table (7861-92-4800)

Honour Time Machinery Limited specializes in high-quality engine assembly and spare parts for Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai, ensuring your machinery operates at peak performance globally.