4Boats
ACR HydroFIX HRU 9490.1 Hydrostatic Release Unit EPIRB Replacement Part 27737
ACR HydroFIX HRU 9490.1 Hydrostatic Release Unit EPIRB Replacement Part 27737
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ACR HydroFIX HRU 9490.1
Premium Hydrostatic Release Unit | SKU: 27737
The ACR HydroFIX™ 9490.1 is a patented hydrostatic release unit (HRU) designed to automatically deploy your EPIRB in the event of a vessel sinking. Engineered for extreme marine environments, it activates when submerged at a depth of 1.5 to 4 meters, ensuring your distress signal is released and activated even if the crew cannot reach it.
Key Features
- ✔ 2-Year Service Life after installation
- ✔ Automatic release at 1.5 - 4.0 meters depth
- ✔ Corrosion-resistant, high-grade materials
- ✔ Patented rod system for reliable activation
- ✔ No yearly maintenance required
Technical Specs
| Manufacturer | ACR Electronics |
| Activation Depth | 1.5 – 4.0 meters |
| Service Life | 24 Months (Installed) |
| Approvals | SOLAS, IMO, USCG |
| Weight | approx. 180g |
Compatibility / Fitment Guide
| ACR EPIRB Model | Part Reference | Bracket Compatibility |
|---|---|---|
| GlobalFix™ V4 | RLB-41 | SeaShelter™ 4 |
| GlobalFix™ PRO | RLB-37 | SeaShelter™ 3 |
| GlobalFix™ iPRO | RLB-36 | SeaShelter™ 2 |
| Satellite 3™ / 2™ | RLB-38 / RLB-32 | PathFinder™ Bracket |
OEM Cross Reference
| ACR Part Number | 9490.1 / 9490 |
| 4Boats SKU | 27737 |
| Alternate Ref | HRU Replacement Kit 9490.1C |
Questions & Answers
Is this a genuine original part?
Yes, this is a genuine ACR Electronics replacement part, designed specifically for their line of EPIRB brackets.
How do I know when it needs to be replaced?
The HRU must be replaced every 2 years after installation. You should mark the installation date on the label provided with the unit to track expiry.
Does it come with the required assembly hardware?
Yes, the 9490.1 kit typically includes the hydrostatic release unit, the plastic rod, and the necessary spacer for a standard ACR bracket installation.
Note: Proper installation is vital for safety. Please consult your EPIRB manual or a qualified technician for installation. 4boats.co.uk provides premium marine safety equipment you can trust.
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