When removing the reversing light switch, you'll need to replace the sealing ring, which is intended for one-time use only.
Aluminum forms on the switch and gearbox housing, and if reused, it will no longer seal sufficiently.
This ring is not supplied with the switch and must be ordered separately.
If there is no switch, most gearboxes are prepared for it. In this case, the hole is sealed by a sealing plug, in which this sealing ring also serves to ensure a proper seal.
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