Engine Oil Heat Exchanger Assembly ️

This component is built to keep engine oil at a stable working temperature. When oil gets too hot, it becomes thinner and loses its protective film. When it stays too cold, it can’t flow and clean as designed. A healthy unit helps your engine stay smooth, quiet, and protected under load.

Why this part is needed ✅

Modern Nissan engines work hard in traffic, towing, and long highway runs. This heat exchanger transfers excess heat away from the oil (often through coolant passages),helping prevent oil breakdown, sludge, and accelerated wear.

How it works ⚙️

Hot oil passes through internal channels while engine coolant (or airflow, depending on setup) absorbs heat. The controlled exchange keeps oil viscosity closer to spec, improving lubrication for bearings, turbo parts (if equipped),and valve train areas.

What happens if it fails

• Oil temperature spikes, causing thinning oil and low-pressure warnings
• Possible oil/coolant cross-contamination (milky oil or oily coolant)
• Faster engine wear, ticking noises, and overheating under load
• Leaks that can lead to oil loss and engine damage

Compatible Models

• Nv3500
• Frontier
• Nv
• Patrol