Gates 42181 Engine Water Pump

Reliable Cooling Solution for Infiniti and Nissan Vehicles

The Gates Water Pump (Standard) part number 42181 is engineered to maintain optimal engine temperature in select Infiniti and Nissan models. Designed with durable materials and precise specifications, this engine water pump supports efficient coolant circulation for reliable vehicle performance.

Key Features of Gates Water Pump 42181

• Housing constructed from cast aluminum for strength and heat dissipation
• Stamped steel impeller designed for standard rotation to match OEM specifications
• Accessory belt drive style for compatibility with existing belt systems
• Includes water pump, gasket, and four double-end studs for secure mounting
• Does not include back housing, thermostat, fan clutch, or pulley
• Not timing belt driven, suitable for accessory belt driven cooling systems

About the Gates Water Pump (Standard) Product Line

The Gates Water Pump (Standard) line offers engine water pumps designed to meet original equipment standards without additional integrated components such as thermostats or pulleys. This product line focuses on providing reliable core water pump functionality with durable materials like cast aluminum housings and stamped steel impellers, ensuring compatibility and longevity in cooling systems for various vehicle applications.

Detailed Product Description

This Gates engine water pump 42181 features a cast aluminum housing that provides a robust and lightweight structure, aiding in heat dissipation and corrosion resistance. The stamped steel impeller is engineered for standard rotation, ensuring proper coolant flow and system efficiency. Designed for accessory belt drive systems, this water pump is compatible with select Infiniti and Nissan models including the 200SX, 300ZX, D21, M30, and Pickup. The package includes the water pump itself, a gasket for sealing, and four double-end studs to facilitate secure installation. Note that this pump does not include a back housing, thermostat, fan clutch, or pulley, so it is intended for use in systems where these components are serviced separately.

Common Applications and Issues Addressed

• Replacement of worn or leaking water pumps in Infiniti 200SX and Nissan 300ZX cooling systems
• Resolving overheating issues caused by inefficient coolant circulation
• Addressing coolant leaks due to damaged pump housing or seals
• Maintaining engine temperature stability in Nissan D21 and Pickup models
• Restoring proper accessory belt-driven water pump function in Nissan M30 engines

Installation Notes and Tips

Ensure the cooling system is fully drained before removing the old water pump. Verify that the accessory belt drive system is in good condition and properly tensioned. Use the included gasket and double-end studs to secure the pump, following manufacturer torque specifications. Since this pump does not include a pulley or fan clutch, inspect these components separately and replace if necessary. Proper sealing and alignment are critical to prevent leaks and ensure optimal pump performance.

Quality Assurance and Warranty

Gates water pumps are manufactured to meet or exceed OEM standards for durability and performance. The Water Pump (Standard) line undergoes rigorous quality control to ensure reliable operation in specified Infiniti and Nissan models. Warranty coverage details should be confirmed with the product documentation or supplier, as they may vary by region and application.