The Massey Ferguson 9S.400 tractor battery spec found is 12 V with Group 31 battery sizing.
Voltage12 V
Group size31
Massey Ferguson 9S.400 Battery Size Details
Replacement battery recommendation
The best replacement battery for the Massey Ferguson 1E.40 tractor is typically a sealed lead acid (SLA) battery designed specifically for that model. – 12 V, Group 31
Battery voltage
12 V
Battery group size
31
Massey Ferguson 9S.400 Extra Battery Notes
Replacement note
For the Massey Ferguson 9S.400, match the replacement battery to the captured spec: 12 V, Group 31. Physical fit, terminal layout and hold-down fit still matter
Battery location
The battery on the Massey Ferguson 9S.400 tractor is located under the seat in the cab
Battery replacement steps
To replace the battery on a Massey Ferguson 1M.35 tractor, first, disconnect the negative terminal followed by the positive terminal. Then, remove the old battery and install the new one by connecting the positive terminal first, followed by the negative terminal
Safe removal note
Disconnect the negative cable first, then disconnect the positive cable. Install the new battery, connect the positive cable first, then reconnect the negative cable last. That reduces the chance of shorting a tool against the frame
Official information note
Mistakes do happen. Battery specs can change by year, engine, market, terminal layout and installed options. Check the old battery label, operator manual, parts book and official masseyferguson.com website before ordering a replacement battery.
