Allstar Performance Straight Adapter Fitting -12 AN Male to -16 AN Male O-Ring - Black Pilot Bushing Block mount to fan hub

Block mount to fan hub dimension is 5-5/8"

and feature RJS latest designs

Marine Pump

1996-2004 Chevrolet Express 1500

Allstar Performance Straight Adapter Fitting -12 AN Male to -16 AN Male O-Ring - Black Pilot Bushing Block mount to fan hubAN Flare To ORB Adapter 12AN to 1 5 16" 12 (16AN) Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find, specialty items that cover many segments in the performance aftermarket. For over 30 years, customers worldwide have come to rely on the quality, affordable and practical items available from Allstar Performance. Product Description: Adapter Straight 12 AN Male to 16 AN Male O Ring Aluminum