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• 1" NPT port is designed to be used with Nos. 63541, 63542, 63543, and 63544
• Black anodized billet aluminum housing stands 2-5/16" tall, which locates filler neck at highest point to bleed off air on cars with low-mount radiators
• Has to be mounted with conventional gaskets or Moroso No. 63469 Filler Neck O-Ring Gasket
• Includes a 1/2" NPT port for installing a water temperature sending unit and two 1/4" NPT ports to plumb return lines on popular aftermarket cylinder heads
• The unit can be flipped 180° for either right or left water hose outlet location
• Use with one of Moroso's Bolt-On Filler Necks NOs. 63460, 63461, 63465, 63466, or Block-Off Plate No. 63471
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