This Peterson Fluid Systems large primer filter mount features -12AN fittings with a 1 1/2-12 post and a left-side primer inlet. It combines a full-size filter mount with a priming interface to aid oil circulation before startup. The unit is intended for installations that require a larger filter and plumbing via -12AN ports, and pairs with available primer pump hardware and brackets for mounting.
Peterson Fluid Systems Primer Filter Mount -12AN 1 1/2-12