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The Peterson Fluid Systems -16AN internal-hex port plug closes oversized AN ports on dry-sump oil pumps, tanks and compatible accessories. The internal hex interface gives installers a positive drive for secure seating and straightforward removal during maintenance or plumbing updates. This service item is part of Peterson’s race-focused oiling accessory range, helping preserve cleanliness and prevent leaks when ports are unused.
Peterson Fluid Systems Port Plug -16AN Internal Hex
