3/8‑18 NPT Plug w/ thread‑in anode (32mm length x 13mm O.D.)

 

Fits 1994‑2009 D2.8L, D3.0L, D3.6L & D4.2L in‑line diesel engine heat exchangers, Also fits Racing 850 SCi, 1025 SCi, 1075 SCi & 1200SCi oil cooler housing.