Kohler Ldw1003 Water Pump Seal - OEM Number: 4580168

The Kohler LDW1003 Water Pump Seal (OEM 4580168) is a direct replacement sealing component designed for use within Kohler and Lombardini LDW1003 engine water pump assemblies. It forms a critical part of the engine cooling system, preventing coolant leakage around the rotating water pump shaft while maintaining reliable sealing performance during engine operation.

Manufactured to OEM specifications, this water pump seal is engineered for durability, heat resistance, and long service life under demanding industrial operating conditions. It is designed to withstand coolant exposure, pressure fluctuations, shaft rotation, and continuous thermal cycling commonly encountered in liquid-cooled diesel engines.

FUNCTION AND OPERATION

• Prevents coolant leakage from the water pump assembly
• Maintains sealing around the rotating pump shaft
• Supports correct coolant circulation and cooling system pressure
• Helps protect bearings and internal pump components from contamination
• Designed for continuous operation under heat and vibration

TECHNICAL DETAILS

• OEM Part Number: 4580168
• Type: Water pump seal / mechanical seal
• Function: Coolant sealing component for water pump assemblies
• Application: Kohler / Lombardini LDW1003 diesel engines
• Construction: Precision-engineered sealing assembly with wear-resistant sealing surfaces
• Design: OEM-configured seal for direct replacement installation

Water pump seals of this type are commonly used within compact industrial diesel engine cooling systems to maintain leak-free operation and reliable coolant circulation.

TYPICAL APPLICATIONS

Suitable for a range of equipment using Kohler LDW1003 engines, including:

• Site dumpers
• Mini excavators and compact construction machinery
• Industrial generators and power units
• Agricultural and utility equipment
• Hydraulic power packs
• Compact plant machinery

The LDW1003 engine platform is widely used across industrial equipment requiring compact liquid-cooled diesel engine performance and reliable continuous-duty operation.

IMPORTANT INFORMATION

Always confirm the correct OEM part number, engine model, and water pump configuration before ordering, as seal dimensions and pump variants may vary depending on engine specification and production range. Worn or damaged water pump seals can result in coolant leakage, bearing contamination, overheating, reduced cooling efficiency, or premature water pump failure.

DELIVERY OPTIONS (UK mainland only)

Next Day Delivery*
£11.95 or FREE for orders over £150
Orders placed before 4pm Monday to Friday will be delivered on the next business day.
Orders placed after 4pm on Friday will be delivered the following Tuesday.
*Next day delivery applies to stocked items only. Availability can be found on the product pages.

Premium Delivery*
£27.50 for delivery before 10:30am
£20.00 for delivery before 12:30pm
*Premium delivery applies to stocked items only. Availability can be found on the product pages.

For all other countries, please click here for full delivery information.

**Separate carriage charges apply to bulk products such as 205L barrels.