Isuzu 6SD1/6SD1T Engine Water Pump 1-13650068-1 for Hitachi EX300-5 EX350-5 Excavator

Product Details

Product Overview

This high-quality engine water pump, identified by OEM part number 1-13650068-1 (1136500681), is a direct replacement component specifically engineered for the Isuzu 6SD1 and 6SD1T diesel engines. It is primarily designed for heavy-duty applications in Hitachi EX300-5 and EX350-5 excavators. As a critical component of the engine’s cooling system, this water pump ensures optimal coolant circulation, preventing overheating and maintaining consistent operating temperatures under extreme working conditions. We serve a global network of dealerships, repair shops, and fleet operators, with major distribution hubs in North America, Europe, and the Asia-Pacific region.

Key Features & Benefits

• Premium Build Quality: Manufactured using high-grade cast iron and precision-engineered bearings to withstand high rotational speeds and thermal stress.
• Leak-Proof Design: Features a high-quality mechanical seal with a ceramic face and carbon ring to ensure zero leakage and long service life.
• Direct OEM Fitment: Exact match to the original dimensions, bolt patterns, and impeller design, allowing for plug-and-play installation without modifications.
• Enhanced Durability: Designed to handle the specific coolant flow and pressure requirements of the Isuzu 6SD1 series, reducing the risk of cavitation and premature wear.
• Operational Reliability: Ensures stable engine temperatures, directly contributing to improved fuel efficiency and reduced downtime in demanding excavation environments.

Technical Specifications

OEM Cross-Reference

This water pump is a direct replacement for the following original equipment manufacturer (OEM) numbers:

• Isuzu: 1-13650068-1, 1136500681
• Hitachi: 4293513, 4293514 (Note: Please verify your specific chassis number for exact compatibility)

If your existing part has a different number, please contact our technical support team for confirmation.

Compatibility

Engine Applications:

• Isuzu 6SD1 (Naturally Aspirated)
• Isuzu 6SD1T (Turbocharged)

Vehicle / Equipment Applications:

• Hitachi EX300-5 Excavator
• Hitachi EX350-5 Excavator
• May also fit other equipment utilizing the Isuzu 6SD1 series engine (consult factory specifications)

Global Supply & Distribution

We maintain a robust global logistics network to ensure fast and reliable delivery worldwide. Our key service regions include:

• North America: Fast shipping to the USA, Canada, and Mexico via major ports (Los Angeles, Houston, New York).
• Europe: Regular shipments to Germany, Netherlands, UK, and France via Rotterdam and Hamburg.
• Asia-Pacific: Direct distribution to Australia, Singapore, and Japan.
• Middle East & Africa: Serving UAE, Saudi Arabia, and South Africa.

We have extensive experience in international trade, including customs clearance documentation and export compliance. Most orders are dispatched within 24-48 hours of payment confirmation.

Quality Assurance

• Manufacturing Standards: Produced in ISO 9001 certified facilities, ensuring consistent quality control.
• Testing: Each water pump is subjected to pressure and leak testing before packaging to verify seal integrity.
• Warranty: We offer a standard 12-month warranty against manufacturing defects from the date of purchase.

FAQ

Q1: Is this water pump a direct fit for my Hitachi EX300-5, or do I need any modification kits?
A1: Yes, this is a direct OEM replacement part. It matches the original specifications and bolt pattern of the Isuzu 6SD1 engine used in the EX300-5 and EX350-5. No additional modifications or adapter kits are required for installation.

Q2: What is the recommended maintenance interval for replacing this water pump?
A2: While the water pump is a durable component, it is generally recommended to inspect it during major engine overhauls or when replacing the coolant. As a proactive measure, replacing the water pump every 2,000 to 3,000 operating hours (or as part of a cooling system rebuild) is advised to prevent unexpected failure. Always check for signs of coolant leakage or bearing noise.

Q3: Can I install this water pump myself, or should I hire a professional mechanic?
A3: Replacing a water pump on a heavy-duty engine like the 6SD1 requires mechanical knowledge and specific tools (e.g., torque wrench, gasket scraper). While it is a straightforward task for an experienced diesel mechanic, we recommend professional installation to ensure proper gasket seating, correct torque on bolts, and to avoid coolant system contamination, which could void the warranty.