Ballast Resistor for the 404 Unimog. This unit reduces the charging voltage by 4-5 Volts. These are normally very reliable units so if you have an issue, check for corrosion on your connections. Original Bosch Product.
To Test: You should have 4.3-4.4 Ohms Resitance between the input and output. A vast majority of the issues with these units are corrosion and or mis-wired. Double check the wire from the Ignition Switch (Top terminal of ballast resistor) and the wire from the starter button (either of the lower terminals) to make sure they have not been reversed.
Additional Part Numbers of this item:
- 1224509032
- 0001580445
- NSN 5905-12-121-7983
