Review on 🔧 Aluminum Water Hose Fitting Replacement for BMW 1, 3, 5, 6, 7, Z4 (Engine N52, N53, N54, and N51 3.0L) – Compatible with 11537541992, 11537544638 by Eric Salem

N54 Didn't fit. I do not recommend. Shop elsewhere. It was the waist where I again blamed myself for ordering a similar part from an unknown supplier from a source you know where those parts were made. After seeing so many positive reviews I gave it a go. To my surprise, this part didn't fit at all. He took off the regular old one and carefully cleaned the hole. I tried to insert this new one carefully without pressing too hard. That does not work. I looked inside and made sure there was nothing left of the old flange. Nothing. ZERO. I tried to put it back in - it didn't fit. Press harder - no, twist - no. What happened was the o-ring was the wrong size and was preventing him from entering. I had to find another O-ring. Check out this clamp. This served its purpose, but the question is, should it be about 2 feet long? that you can wrap it around 2 or 3 times? I would love to have and mount a clamp that fits this pipe diameter exactly.