Humminbird IDMK H910R - Reinforced In-Dash Mounting Kit (HELIX 9/10)
740155-1Compatibility:
The "Reinforced" Flush Mount
If you want to flush mount your HELIX 9 or HELIX 10 into the console or bow of your boat, this is the safest way to do it. The Humminbird IDMK H910R (740155-1) is the "Reinforced" kit designed specifically for the larger, heavier HELIX units.
Prevents Dashboard Flex:
Unlike the standard plastic brackets, this kit includes a heavy-duty metal backing plate and reinforced mounting hardware. This structural support prevents the fiberglass or plastic dashboard from cracking under the weight of the unit while pounding waves.
📦 Product Specs:
- Part Number: 740155-1 (IDMK H910R)
- Material: Reinforced Composite & Metal Backing
- Mount Type: In-Dash (Flush Mount)
- Fits: HELIX 9 & HELIX 10 (All Generations)
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Frequently Asked Questions
Will this fit a HELIX 12?
No. The HELIX 12 is significantly larger than the 9 and 10. You need the IDMK H12R (Part #740156-1) for a HELIX 12. This kit is strictly for the 9 and 10 inch models.
Do I need to cut a hole in my dash?
Yes. This is a "flush mount" kit, meaning the unit sits inside the dashboard. You will need to cut a rectangular hole using the template provided in the box to recess the unit properly.
Does this fit the new G4N models?
Yes. The physical housing size of the HELIX 9 and 10 has remained consistent across generations (G1 through G4N) for mounting purposes. This kit (740155-1) fits all of them perfectly.