380004A1 , 87611747 , 8100228 , 85817029
Anyone can tell me if all those parts number are the same sensor ...it seem they are the same but start at 200$ to 900$
Yes they all relate to the same part, you have a mix of CNH & New Holland numbers. (Not sure on 8100228)
CNH 380004A1 now subs to 87611747
NH 85817029 now subs to 87611747
Originally you could purchase just the speed sensor & you would have to fit it to the original wiring input plug for the control valve.
Just guessing, but now you probably purchase the complete control valve loom, including the speed sensor main input plug & connectors for all control solenoids.
Hence the big price difference........