ISR Performance Fitting - 6AN to M14x1.5

The ISR Performance -6AN to M14x1.5 Fitting bridges the gap between AN plumbing and a metric port. One side threads into an M14x1.5 port, the other takes a -6AN hose end, which is a common combination on turbo oil feed and coolant connections where the turbo or block uses metric threads and the lines are built with AN fittings. It is black anodized, lightweight, and part of the same fitting family ISR has used on their turbo line kits for more than five years.

Specifications

• AN side: -6AN
• Thread side: M14x1.5
• Finish: black anodized
• Lightweight universal adapter fitting
• Priced per single fitting

Why you need an adapter

Japanese and European turbos, oil filter housings and water necks frequently use M14x1.5 threads, while most aftermarket line kits are built around AN sizing. Instead of hunting for a metric-only hose end, a dedicated adapter lets you run standard -6AN hose and ends everywhere and convert only at the port.

Install notes

Confirm the port is actually M14x1.5 before ordering; M14 ports also come in other pitches. Use the correct sealing method for the port style, whether that is a crush washer or an O-ring, and do not overtighten the aluminum fitting into a cast housing.

All ISR Performance products are designed for off-road use only.