Gates 42178 Engine Water Pump with Fan Clutch

Reliable Cooling Solution for Nissan Vehicles

The Gates Water Pump (Standard) part number 42178 is engineered to provide dependable engine cooling for select Nissan models. Designed with durable materials and integrated components, this water pump supports efficient coolant circulation to maintain optimal engine temperature.

• Cast aluminum housing for lightweight durability
• Stamped steel impeller with standard rotation
• Includes water pump and gasket for proper sealing
• Accessory belt drive style for compatibility with belt-driven systems
• Comes with fan clutch and pulley included
• Compatible with Nissan 200SX, 510, 720, D21, and Pathfinder models

About the Gates Water Pump (Standard) Product Line

The Gates Water Pump (Standard) line focuses on providing reliable, OEM-quality water pumps designed to meet the cooling system requirements of various vehicles. This product line emphasizes durable construction and precise fitment, ensuring consistent performance in standard engine cooling applications. The 42178 water pump is part of this line, offering a balance of quality materials and essential features for Nissan engines.

Product Features and Specifications

This engine water pump features a cast aluminum housing that offers corrosion resistance and reduced weight compared to traditional materials. The stamped steel impeller is designed with a standard rotation direction to match factory specifications, ensuring proper coolant flow. The pump is driven by the accessory belt, making it suitable for vehicles without timing belt-driven water pumps. Included with the pump is a gasket to ensure a secure seal during installation. Additionally, the fan clutch and pulley are included, providing a complete assembly for the cooling fan system.

Compatible Nissan Models and Applications

• 200SX
• 510
• 720
• D21
• Pathfinder

This water pump is specifically designed for these Nissan models, ensuring proper fit and function within their cooling systems.

Common Issues Addressed by This Water Pump

• Engine overheating due to coolant circulation failure
• Coolant leaks from worn or damaged water pump seals
• Fan clutch malfunction affecting engine temperature regulation
• Reduced cooling efficiency from impeller wear or damage
• Noise or vibration caused by failing water pump components

Installation Notes and Tips

When installing the Gates Water Pump (Standard) 42178, ensure the gasket is properly seated to prevent leaks. Verify that the accessory belt is correctly tensioned to avoid slippage or premature wear. Since the fan clutch and pulley are included, inspect these components for smooth operation during installation. It is recommended to drain the cooling system before removal and refill with the appropriate coolant after installation. Follow vehicle-specific service manual instructions for torque specifications and installation procedures.

Quality Assurance and Warranty

Gates water pumps are manufactured to meet industry standards for durability and performance. The Water Pump (Standard) line undergoes rigorous quality control to ensure reliable operation. While specific warranty details for part number 42178 are not provided here, Gates typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.