Review on 🔧 Rubber Steering Pressure: 91345 RDA A01, 91370 SV4 000 by Douglas Hall

I only needed the high pressure port o-ring, 91370-SV4-000 as it says on the box (in addition to 91345-RDA-A01). Well, 91370-SV4-000 states 14.4 x 1.9. O-rings are measured by the inside diameter (relaxed) of the cross-section of the ring. The inner diameter of the part I received is 2mm too small. Of course you can install it, but it does not seal (the ring is too stretched, so the design seal is not achieved). It doesn't burn, it drips. You install it, maybe you think everything is ok and the liquid will flow out slowly. I only found the leak because the o-ring seemed suspiciously small and my friend turned the steering wheel several times.