Four Seasons 85421 Engine Coolant Water Inlet

Overview of Four Seasons Water Inlet 85421

The Four Seasons Water Inlet 85421 is a thermoplastic engine coolant water inlet designed for select INFINITI and Nissan vehicles. This component is engineered to meet or exceed OEM specifications, ensuring reliable performance in your vehicle's cooling system.

• Constructed from durable thermoplastic material
• Maximum height of 2.283 inches for precise fitment
• Inlet diameter of 1.375 inches
• Bolt hole center-to-center distance of 2.093 inches
• Mount flange width of 0.425 inches
• Compatible with INFINITI and Nissan models including Armada, FX45, M45, NV2500, NV3500, Pathfinder, Q45, QX56, and TITAN
• Does not include thermostat or gasket
• Style without thermostat for specific cooling system configurations

Four Seasons Water Inlet Product Line Details

The Four Seasons Water Inlet product line focuses on engine coolant components designed to maintain optimal engine temperature and prevent overheating. The Water Inlet 85421 is part of this line, providing a reliable connection point for coolant flow without an integrated thermostat, suitable for vehicles requiring separate thermostat installation.

Detailed Product Description

This engine coolant water inlet is manufactured from thermoplastic, offering resistance to corrosion and heat within the cooling system. The part’s dimensions, including a maximum height of 2.283 inches and a bolt hole center-to-center measurement of 2.093 inches, ensure proper alignment and fitment. The inlet diameter of 1.375 inches supports efficient coolant flow, while the mount flange width of 0.425 inches provides secure attachment. Designed without a thermostat, this inlet is intended for use in cooling systems where the thermostat is installed separately. The Four Seasons 85421 meets or exceeds OEM standards, making it a dependable replacement for compatible INFINITI and Nissan models.

Common Applications and Issues Addressed

• Replacement of cracked or damaged water inlet housing
• Resolving coolant leaks at the inlet connection
• Addressing overheating issues caused by faulty coolant flow
• Maintaining proper coolant circulation in INFINITI Armada and Nissan Pathfinder vehicles
• Ensuring secure mounting and sealing in Nissan TITAN and QX56 cooling systems

Installation Notes and Tips

• Verify compatibility with your specific INFINITI or Nissan model before installation
• Ensure the cooling system is fully drained prior to removal of the old water inlet
• Inspect and replace any gaskets or seals separately, as they are not included with this part
• Torque bolts to manufacturer specifications to avoid leaks or damage
• Check for proper coolant flow and absence of leaks after installation

Quality Assurance and Warranty

The Four Seasons Water Inlet 85421 is manufactured to meet or exceed OEM quality standards, providing reliable performance and durability. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty against defects in material and workmanship. Consult product documentation or the manufacturer for exact warranty terms.