* On the left-hand side of the frame below the left-hand footplate mounting.
On Massey Ferguson 35
* On the right-hand side of the cylinder block, just below the head.
On Massey Ferguson 65
* On the left-hand side of the cylinder block, just below the oil filter.
On Massey Ferguson 135
* On the right-hand side of the engine block, just below the cylinder head.
On Massey Ferguson 165
* On the left-hand side of the engine block, just below the cylinder head.
