New Holland I oil pressure switch ?

[jsturock@hotmail.com]

OIL PRESSURE SWITCH FOR FWD/P.S. AND OIL COOLER. i'm wondering why I'm told the new unit is bigger than what is on the tractor and the price is $54 can I use a oil pressure switch for a ford truck or car that's a $10 part ? this is going on at T.N. 75 DA due to the plastic cracked on the top hydraulic fluid is leaking out thanks for any and all information .