Engine Cylinder Liner Custom Development & Factory Direct Sales

As a source manufacturer and factory direct supplier, we specialize in custom development and foreign trade export of various engine Cylinder Liners (Sleeves). We ensure precision quality for your specific needs, whether for Cummins B5.9-C Cylinder Liner, Komatsu 6D102 Cylinder Liner, Caterpillar 3116 Cylinder Liner, or Isuzu 6BG1 Cylinder Liner requirements.

Introducing the Komatsu Fuel Supply Pump: Part 6745-71-4330

Welcome to Honour Time Machinery Limited, your reliable partner for premium heavy-duty engine components. We proudly present the Komatsu Fuel Supply Pump, designated by part number 6745-71-4330 (and the unhyphenated reference 6745714330). This critical component is designed to restore optimal fuel pressure and flow to your Komatsu engine, specifically addressing common issues in models like the Komatsu PC400-7 Excavator, which utilizes the 6D125 engine series. Investing in our replacement pump ensures your equipment maintains its peak performance on the job site.

Our core commitment is to supply the highest quality heavy duty diesel engine repair parts, covering major brands including cummins, komatsu, Caterpillar, isuzu, kubota, yanmar, and weichai.

Key Features of the Komatsu Fuel Pump 6745-71-4330:

1. Use for Komatsu excavator or construction machinery utilizing compatible engine models.

2. Designed for high-pressure fuel delivery, ensuring consistent engine starting performance.

3. Precision engineered to meet or exceed OEM specifications for the 6745-71-4330 pump.

4. Durable construction guarantees longevity, ideal for demanding applications like the Komatsu PC400-7.

5. Genuine quality replacement parts, offering an affordable solution without compromising reliability.

Comprehensive Engine Parts Inventory

Beyond the Komatsu Diesel Pump, our main product offerings are vast and cover a complete engine rebuild kit. We stock high-demand components like Cylinder Liner, Piston, Piston Ring, Crankshaft Bearing, Connecting Rod Bearing, and Thrust Washer. Our complete Overhaul Gasket Kit provides all the necessary seals for a full engine refresh.

We also specialize in major assemblies and systems, including the core Diesel Pump, Injector, Crankshaft, and Turbocharger. Auxiliary parts such as the Water Pump, Oil Pump, Cylinder Block, Cylinder Head, and Connecting Rod are available for models from Cummins, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai.

Engine Model Coverage We Can Provide

We are a leading provider of Aftermarket Engine Components Wholesale for a vast range of engine models:

Core Engine Components Available

• Liner Kit

• Piston

• Piston Ring

• Gasket Kit (Overhaul Gasket Kit)

• Gasket Head (Cylinder Head Gasket)

• Crankshaft

• Valve Guide

• Nozzle (Injector Nozzle)

• Bearing (Engine Bearing)

• Pressure Switch

• Flameout Solenoid

• Monitor

• Radiator

• Main Valve

• Belt

• Engine Bearing (Crankshaft and Con Rod Bearings)

• Cylinder Block

• Valve Seat

• Accelerator Motor

• Transmitter

• Fan Cooling

• Other Engine Parts

Glossary of Key Construction Machinery Parts

• Cylinder Liner: Installed in the Cylinder Block. Critical for piston movement. Example: Cummins B5.9-C Cylinder Liner (Engine).

• Thrust Washer: Installed on the Crankshaft. Prevents axial movement. Example: Komatsu 6D102 Thrust Washer (Excavator).

• Piston Ring: Installed in the Piston grooves. Maintains compression and manages oil. Example: Caterpillar C7 Piston Ring (Wheel Loader).

• Valve Guide: Installed in the Cylinder Head. Guides valve movement. Example: Isuzu 4BG1 Valve Guide (Mini Excavator).

• Water Pump: Attached to the Engine Block. Circulates coolant. Example: Yanmar 4TNV94L Water Pump (Compact Track Loader).

• Oil Pump: Submerged in the Oil Pan. Circulates engine oil. Example: Kubota V3307 Oil Pump (Skid Steer).

• Turbocharger: Attached to the Exhaust Manifold. Increases engine power. Example: Weichai WP10 Turbocharger (Bulldozer).

• Connecting Rod Bearing: Installed between the Connecting Rod and Crankshaft. Reduces friction. Example: Caterpillar 3114 Connecting Rod Bearing (Backhoe).

• Flameout Solenoid: Mounted near the Fuel Pump. Controls fuel cutoff. Example: Komatsu PC200-8 Flameout Solenoid (Excavator).

• Injector Nozzle: Part of the Fuel Injector. Atomizes fuel into the cylinder. Example: Isuzu 6WG1 Injector Nozzle (Haul Truck).

Troubleshooting and Maintenance for Heavy Duty Diesel Engines

Common Fault and Solution: Komatsu PC300-8 (Engine: 6D107)

Fault: The Komatsu PC300-8 engine experiences intermittent loss of power and rough idling after warm-up. Diagnostic codes may point to low fuel pressure.

Solution: This often indicates a failing Diesel Pump or clogged Injector Nozzle. Inspect and replace the Fuel Supply Pump (6745-71-4330 replacement recommended) and perform a flow test on the injectors. Ensure new gaskets are used from a certified Gasket Kit.

Essential Maintenance Tips:

• Regularly check and replace the Engine Bearing and Thrust Washer every major overhaul (approx. 10,000 hours or as per manufacturer).

• Always use high-quality fuel and oil filters to protect the Diesel Pump and Injector systems.

• Inspect the Cylinder Head Gasket (Gasket Head) for signs of leakage to prevent coolant contamination.

• Check the tension and condition of all Belts and inspect the Fan Cooling system components weekly.

Detailed Product & Logistics Information