MASSEY FERGUSON MF 135 Operator's Manual page 7

Engine
The Engine Serial Number is stamped on
the left side of the engine block.
Transmission
The Tran s mi s s ion Serial Number is
stamped on top of the transmission housing
on the right-hand side of the Tractor.
Rear Axle Assembly
The Rear Axle Assembly Serial Number
is stamped on top of the left-hand side of the
axle assembly.
- v -
Fig. B - Engine Serial Number
Fig. C - Transmission Serial Number
Fig. D - Rear Axle Serial Number