1/8nptx-4an Oil Pres Ftn

The 1/8nptx-4an Oil Pressure Fitting is an essential component for engine builders, hot rodders, and performance mechanics who demand precision in their oil system instrumentation. This adapter fitting bridges NPT (National Pipe Thread) and AN (Army-Navy) thread standards, allowing seamless integration between modern gauge senders and custom engine block configurations. Whether you're building a stroker motor or retrofitting a classic engine with electronic diagnostics, this fitting is crucial for connecting your engine's oil gallery to monitoring equipment.

Manufactured to high standards, the 1/8nptx-4an fitting features a robust design that handles high-pressure cycling without leakage or thread failure. The 1/8 NPT male thread on one end mates directly into engine blocks, cylinder heads, or sandwich adapters, while the 4AN female port accepts pressure senders or aftermarket gauges. Precision-machined construction ensures concentricity and thread integrity, which is critical when working with pressurized oil systems.

This fitting is indispensable for technicians installing mechanical oil pressure gauges in various applications, including street rods, motorsports platforms, and custom builds. Its compact footprint of 1.95 x 0.85 x 3.5 inches integrates cleanly into tight engine bay layouts. The fitting is compatible with a range of platforms, including Small-Block Chevy, Big-Block, and LS-Series engines.