Sierra 18-5899 MerCruiser Oil Pressure Sender
- Brand:
- Sierra
- Part no:
- 18-5899
Image: Powerboat Supply
Where to buy
View on Amazonpaid link
Specifications
- Measures
- Oil pressure
This is Sierra's oil pressure sender, part 18-5899, listed for MerCruiser engines. It is cross-referenced to a long list of MerCruiser numbers including 815425T and 90806A1. The published resistance falls as pressure rises, from 240 ohms at 0 psi to 33 ohms at 80 psi. Match the part number and configuration to your application.
Our take
The published resistance runs from 240 ohms at 0 psi down to 33 ohms at 80 psi, so the sender's output falls as oil pressure rises. Those figures give you a reference to test the unit against. Confirm the part number and configuration for your application.