SCITOO Radiator for Nissan D21/Pathfinder/Pickup 2.4L & 3.0L (Direct-Fit, High-Density Core)

SCITOO Engine Cooling Radiator 314 is a direct-fit replacement radiator engineered to restore reliable cooling for Nissan D21, Pathfinder and Pickup models from the late 1980s to the mid-1990s.

If your older Nissan is running hotter than it should or the original radiator has leaks, corrosion, or damaged fins, this SCITOO radiator offers a full replacement built to OEM mounting dimensions and hose connections. It’s designed to match factory fitment while using modern manufacturing techniques—helping to deliver consistent engine temperature control without extensive modification.

Will this radiator fit my Nissan D21, Pathfinder or Pickup?

This unit is intended for specific 2.4L and 3.0L Nissan engines across several model years. Confirm your vehicle’s year, engine size, and original part number before purchasing to ensure compatibility.

• Fits Nissan D21: select 1986–1994 2.4L and 1987–1988 3.0L applications.
• Fits Nissan Pathfinder: compatible with 1987–1995 2.4L and 1995–1997 3.0L models.
• Fits Nissan Pickup: certain 1995 models with 2.4L and 1995 3.0L engines.
• Cross-references include OE numbers such as 314, DPI314, CU314 and equivalents.

How does this radiator improve cooling performance?

The radiator incorporates a high-density core with multi-louvered fins that increase surface area and improve airflow across coolant passages. That design helps the system shed heat more efficiently than worn or clogged originals, while durable construction resists damage from road debris and seasonal temperature swings.

• High-density fin design for expanded heat-transfer surface area.
• Multi-louvered fins to channel airflow and boost cooling efficiency.
• Robust materials to withstand vibration and varying climates.

Is installation difficult and what should I expect?

This radiator uses OE-style inlet/outlet locations and mounting points for a simple drop-in replacement on compatible vehicles. Basic automotive tools and a few hours of time are typically all that’s needed; you’ll want to drain the system, swap mounting brackets and hoses, and refill with the proper coolant mixture.

• OE-design mounting and hose locations for straightforward installation.
• Recommended: new hoses and clamps if original components show wear.
• Check for air pockets after refill and pressure-test the system for leaks.

What durability and warranty considerations should I know?

SCITOO manufactures replacement radiators to meet or exceed the durability expectations of older vehicles. The construction focuses on corrosion resistance and resilient fins to maintain performance over time, though lifespan depends on maintenance and operating conditions.

• Constructed for corrosion resistance and long-term service.
• Maintaining proper coolant and periodic inspections extend component life.
• Verify seller warranty and return policies at purchase time.

Who is this for: This radiator is aimed at owners and mechanics restoring or maintaining Nissan D21 trucks, Pathfinder SUVs, and Pickup models from the late 1980s through the 1990s who want a direct replacement that preserves factory fitment. It’s a practical choice for vehicles with overheating symptoms, visible radiator damage, or when refreshing the cooling system during an engine service. Before ordering, confirm exact vehicle year and engine displacement or use a vehicle-fit tool to match the part to your application.