- Shrouded Relay for Select Four-Stroke Mercury/Mariner Outboard Engines
- Replaces: Mercury/Mariner 853292, 821509, 821509T1
- Fits: Four-Stroke 45 HP Serial Range 0G231123 to 0G472132 and Four-Stroke 50 HP Serial Range 0G231123 to 0T178499
- Sierra Part Number 18-5852