Rear Washer-Nozzle Hole Cover, 38mm Billet Cap, fits holes 14mm to 30mm, Weather-Proof, Gloss black
The kit includes an outside and inside billet-aluminum bracket, using an included gasket made of silicone rubber (unlike other solutions out there that use regular hardware-store rubber washer prone to deterioration / dry-rot). Fasteners are Stainless Steel (SU304) and are corrosion-resistant and come in multiple lengths to accommodate the widest possible range of vehicle models.
The exterior/outside "cap" portion is 38mm wide and ~1.6mm tall for a low-profile and flush finish.
Fits ~50+ models! Nissan compatibility - 180SX, 240SX, 300zx (84-89), 300zx (90-99), 350z, Pathfinder, Xterra