Description
SIERRA OMC Cobra Trim Sender – 18-7634 is a replacement trim-position sender for OMC Cobra sterndrive applications. It provides the position signal used by the helm trim gauge and replaces OMC/BRP 984748.
Because trim senders are calibrated to the drive geometry and gauge system, the OEM number should be confirmed before installation. After mounting, the sender must be adjusted with the drive in the specified position so the gauge indication corresponds to actual trim angle.
Key Features
- Replacement trim-position sender for OMC Cobra applications
- Replaces OMC/BRP 984748
- Provides drive-position input to the trim gauge
- Fit-specific sterndrive electrical component
- Adjustable during installation for correct gauge indication
Specifications
- Product type: Trim-position sender
- Application family: OMC Cobra sterndrive
- Electrical function: analog trim-position signal
- Installation: gimbal/drive-mounted sender
- Adjustment: calibrate per service manual after installation
Interchange
- OMC/BRP: 984748 / 0984748
- Volvo Penta cross-reference appears in some Cobra-era applications; confirm by OEM number before ordering

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