Product Details

Hitachi Pilot Pump 4181700 & 9217993 Replacement Specialist

Premium Quality Hydraulic Solutions for SK60-7, SK75, YC85, LG907, E308 Construction Machinery

Quick Inquiry: WhatsApp: +8613532379052 | Email: [email protected]

Custom Engine Cylinder Liner & Factory Direct Export

Manufacturer Source - Precision Casting - Global Export Quality

Honour Time Machinery Limited is a leading source factory for customized engine cylinder liners. We specialize in wear-resistant materials and precision engineering for various heavy-duty brands:

Cummins QSB6.7 Cylinder Liner High-Temperature Resistant
Komatsu PC300-7 Engine Liner Wear-Resistant Alloy
Caterpillar 330D Liner Kit Precision Ground
Isuzu 6HK1 Engine Sleeve Direct Factory Sale

Product Specification & Part Number Cross-Reference

Brand	Application Model	Part Number (Standard)	Part Number (Clean)	Main Product
Hitachi	SK60-7, SK75, YC85, LG907, E308	4181700 / 9217993	4181700 / 9217993	Pilot Gear Pump

This Hitachi Pilot Pump 4181700 is an essential component for maintaining hydraulic system stability in medium and small excavators.

Honour Time Machinery Limited: Core Engine Parts Inventory

We provide a one-stop shop for Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai engine components. Our specialized stock includes:

Engine Cylinder Block, Cylinder Head, Forged Crankshaft, High-Efficiency Turbocharger, Fuel Injection Pump, Injector Nozzle, Water Pump, Heavy Duty Oil Pump, Connecting Rod, and Full Overhaul Gasket Kits.

20+ High-Demand Engine Spare Parts

Cylinder Liner Kit	Piston & Piston Ring	Crankshaft Bearing	Thrust Washer
Cylinder Head Gasket	Valve Guide & Seat	Pressure Sensor	Fuel Solenoid
Engine Oil Cooler	Cooling Fan Blade	LCD Monitor	Throttle Motor

Global Compatibility List for Engine Parts

Manufacturer	Supported Models & Engines
Komatsu	3D82, 3D84, 4D105, 6D95, 6D108, 6D110, 4D84, 4D95, 6D102, 6D105, 6D114, 6D170
Caterpillar	3114, 3116, C4, C6, 3064T, S6K, C7, C-9, C13, 3306, 3406
Isuzu	3LD1, 4LE1, 4BG1, 4HK1, 6SD1, 6WG1, 4LE2, 4JB1, 6BG1, 6HK1, 6WF1, 10PD
Yanmar	4D88E, 4TNE84, 4TNV88, 4TNV94L, 4TNE88, 4TNE94, 4TNV98, 4TNV106
Cummins	QSB6.7, QSM11-C, B5.9-C, B3.9-C, QSM11, C8.3-C, ISB, ISC, L10
Mitsubishi/Hino	4D34, 4D24, S4KT, 6D16, 6D24, J05E, J08E, P11C, H07D

Industry Terminology & Component Location Guide

1. Cummins QSB6.7 Fuel Injector: Installed in the cylinder head of Cummins QSB6.7 engines for direct fuel delivery.

2. Komatsu PC300-7 Turbocharger: Mounted on the exhaust manifold of Komatsu PC300-7 to enhance engine power output.

3. Caterpillar E320D Water Pump: Located at the front of the Caterpillar E320D engine to drive the cooling system.

4. Isuzu 6HK1 Piston Kit: Fits inside the cylinder block of Isuzu 6HK1, converting combustion energy into mechanical motion.

5. Yanmar 4TNV94 Oil Pump: Positioned within the engine crankcase of Yanmar 4TNV94 to provide essential lubrication.

6. Kubota V2203 Crankshaft: The main rotating shaft in Kubota V2203 engines, transmitting power to the flywheel.

7. Weichai WP12 Gasket Kit: Sealing components used throughout the Weichai WP12 engine to prevent fluid leaks.

8. Cummins B5.9 Liner Sleeve: Protective cylinder wall lining for Cummins B5.9 engines, replaceable for easy overhaul.

9. Komatsu D155A Connecting Rod: Links the piston to the crankshaft in Komatsu D155A heavy-duty bulldozers.

10. Caterpillar 325C Pressure Switch: Senses hydraulic oil pressure in the control circuit of Caterpillar 325C excavators.

Expert Troubleshooting: Hydraulic Pilot Pressure Loss

Equipment: Hitachi SK75 Excavator

Common Fault: The machine exhibits slow movement or inconsistent joystick response during operation.

Technical Solution: Inspect the Hitachi Pilot Pump 4181700. Worn internal gears often cause pressure drops below the standard 3.8MPa. Replacing the unit with a high-performance 9217993 pump is the most efficient way to restore hydraulic response. Ensure the hydraulic oil is free of contaminants to prevent premature pump failure.

Maintenance Tip: Always replace the pilot oil filter when installing a new pump to protect the precision control valves.

Key Advantages of Our Hitachi Pilot Pump

Specifically designed for Hitachi SK60-7 and SK75 models.
Fully compatible with YC85 and LG907 excavator hydraulics.
OEM standard 4181700 ensures plug-and-play installation.
Superior durability for E308 series construction machinery.
Precision housing design prevents internal leakage and cavitation.

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Logistics & Export Specifications

Country of Origin	China	Condition	100% Brand New
Quality Standards	ISO/CE Standards	Production Capacity	5000 Units / Year
Payment Terms	T/T, Western Union	Delivery Methods	DHL, Fedex, UPS, Sea Cargo

Company Profile: Honour Time Machinery Limited is a premium exporter of engine assemblies and spare parts for Cummins, Komatsu, Caterpillar, and Isuzu. We provide high-quality components and hydraulic solutions to construction projects worldwide, ensuring maximum uptime for your heavy machinery.

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