labwork Radiator Cooling Fan Assembly for Nissan Altima 2007-2018 & Maxima 2016-2021 — Direct-Fit 21481JA000 High-Flow Motor

The labwork radiator cooling fan replacement is a direct-fit electric cooling fan assembly designed to restore proper engine cooling for Nissan Altima (2007–2018) and Nissan Maxima (2016–2021) models using part number 21481JA000.

If your Altima or Maxima is running hotter than normal, drawing excessive current, or you’ve noticed decreased HVAC performance at idle, a worn or failed radiator fan can be the cause. This labwork replacement fan is built to match OEM mounting points and electrical connections so installation is straightforward for experienced DIYers or mechanics. It combines a high-performance motor with a multi-blade fan design to move larger volumes of air through the radiator and condenser, helping the cooling system maintain more consistent temperatures under load.

How does this fan improve cooling compared to a worn unit?

The labwork fan uses a stronger motor and a multi-blade configuration to produce higher airflow and increased static pressure across the radiator core. That helps dissipate heat faster, especially during idling or stop-and-go traffic when natural airflow is limited. Improved cooling reduces thermal strain on engine components and can support more consistent air conditioning performance.

• High-performance motor for stronger airflow
• Multi-fan blade composition increases air movement
• Designed to reduce engine temperature more quickly
• Direct-fit mounting reduces installation time

Will this replace my original part directly and which part numbers match?

This fan assembly is intended as a direct replacement for the factory unit and aligns with several OEM part numbers, helping ensure compatibility with the listed Nissan model years. It features the same type of electrical interface and mounting pattern, so you won’t need major modifications during installation. Always verify fitment with your vehicle’s VIN or compare the original part number before purchasing.

• Compatible with part numbers: 21481JA000, 214813NT0B, 214813TB0B, NI3115134
• Fits Nissan Altima model years 2007–2018
• Fits Nissan Maxima model years 2016–2021
• Check VIN or original part number for confirmation

How difficult is installation and what should I prepare?

Installation is straightforward for anyone familiar with basic automotive repairs: unplug the electrical connector, unbolt the old assembly, and transfer the new unit into place. The fan uses a special interface and direct docking to keep the process simple; however, access to the radiator area and standard hand tools are required. If you’re unsure, a professional installation will usually take under an hour.

• Standard hand tools required (ratchet, sockets, screwdrivers)
• Disconnect battery before starting electrical work
• May require removal of shrouds or small trim pieces for access
• Professional installation recommended if you lack experience

What are the build characteristics and durability features?

The labwork fan assembly is manufactured for durability in engine-bay conditions with a robust motor and reinforced blade geometry to resist warping and fatigue. Materials and assembly are chosen to tolerate heat cycles, vibrations, and exposure to road debris. Proper installation and electrical connections help maximize service life and performance.

• Durable motor designed for automotive duty cycles
• Reinforced multi-blade design for consistent airflow
• Manufactured to withstand heat and vibration
• Simple electrical interface for reliable connection

Who is this for: This labwork replacement cooling fan is aimed at Nissan Altima and Maxima owners, DIY enthusiasts, and independent repair shops seeking an affordable, direct-fit fan assembly that matches common OEM part numbers. It’s suitable for drivers experiencing overheating, reduced HVAC performance, or noisy/failed original fans who want a durable replacement with straightforward installation. Before ordering, confirm compatibility with your vehicle’s year and original part number; contact labwork customer support if you need fitment help.