This rigid and reinforced in-dash mounting kit is for select HELIX 8 and HELIX 9 model fish finders, complete with bracket and hardware. This provides a secure and finished look for in-dash mounting of your Humminbird fish finder. This product is compatible with G3N and newer models.

Humminbird IDMK-H89R Reinforced In-Dash Mounting Kit f/HELIX 8/9 G3N/G4N [740179-1]
Humminbird IDMK-H89R Reinforced In-Dash Mounting Kit f/HELIX 8/9 G3N/G4N [740179-1]
Features:
- Compatible with: HELIX 9 MSI GPS G4N, HELIX 9 MSI GPS G3N, HELIX 9 MDI GPS G4N, HELIX 9 MDI GPS G3N, HELIX 9 CHIRP GPS G4N, HELIX 9 CHIRP GPS G3N, HELIX 8 MSI GPS G4N, HELIX 8 MSI GPS G3N, HELIX 8 MDI GPS G4N, HELIX 8 MDI GPS G3N, HELIX 8 CHIRP GPS G4N, HELIX 8 CHIRP GPS G3N
Product Specifications
Humminbird IDMK-H89R Reinforced In-Dash Mounting Kit f/HELIX 8/9 G3N/G4N [740179-1] Product Specifications
Specifications:
| Model | In-Dash Mounting Kit - HELIX 8/9 |
| Product Code | 740179-1 |
| UPC | 0082324053764 |
| Type | In-Dash Mount |
| Current Models | HELIX 9, HELIX 8 |
| Warranty | One-Year Warranty |
Product Manual
Quick Guide (pdf)
Accessory Resource Guide
HELIX Series In-Dash Installation Instructions
HELIX 8-9 In-Dash Installation Template
Product Warranty
Humminbird Warranty
The Humminbird warranty we offer is product-dependent. The warranty begins at the date of purchase. When requiring any service/repairs for your Humminbird product, you will need your original receipt of purchase for warranty coverage. If you do not have your receipt of purchase, we will reference your product's serial number and base your warranty coverage off the date of manufacture. We recommend that you write the serial number down somewhere outside of your boat to have it available for future reference.
Humminbird 2-Year Limited Warranty
This warranty covers the following products:
- All XPLORE models
- Optional: Additional third year of warranty is available withĀ product registration.*
- All APEX models
- All SOLIX models
- HELIX 8 / 9 / 10 / 12 / 15 models
- ICE HELIX 9 models (with MEGA Live or MEGA 360 Imaging)
- ICE Flasher models (ICE-55, ICE-45, and ICE-35)
- MEGA Live 1 Imaging transducersĀ
- MEGA Live 2 Imaging transducersĀ
- MEGA 360 Imaging transducers
Download Humminbird 2-Year Limited Warranty Terms (PDF)
Humminbird 1-Year Limited Warranty
This warranty covers the following products:
- HELIX 5 / 7 models
- ICE HELIX 5 / 7 models
- All accessories
- All cartography products
Download Humminbird 1-Year Limited Warranty Terms (PDF)
Humminbird Cartography 1-Year Limited Warranty
This warranty covers the following products:
- All cartography products including LakeMaster and CoastMaster charts
Download Humminbird Cartography 1-Year Limited Warranty Terms (PDF)
Product FAQs
N/A
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Humminbird IDMK-H89R Reinforced In-Dash Mounting Kit f/HELIX 8/9 G3N/G4N [740179-1]
This rigid and reinforced in-dash mounting kit is for select HELIX 8 and HELIX 9 model fish finders, complete with bracket and hardware. This provides a secure and finished look for in-dash mounting of your Humminbird fish finder. This product is compatible with G3N and newer models.
Features:
- Compatible with: HELIX 9 MSI GPS G4N, HELIX 9 MSI GPS G3N, HELIX 9 MDI GPS G4N, HELIX 9 MDI GPS G3N, HELIX 9 CHIRP GPS G4N, HELIX 9 CHIRP GPS G3N, HELIX 8 MSI GPS G4N, HELIX 8 MSI GPS G3N, HELIX 8 MDI GPS G4N, HELIX 8 MDI GPS G3N, HELIX 8 CHIRP GPS G4N, HELIX 8 CHIRP GPS G3N
Product Specifications
Humminbird IDMK-H89R Reinforced In-Dash Mounting Kit f/HELIX 8/9 G3N/G4N [740179-1] Product Specifications
Specifications:
| Model | In-Dash Mounting Kit - HELIX 8/9 |
| Product Code | 740179-1 |
| UPC | 0082324053764 |
| Type | In-Dash Mount |
| Current Models | HELIX 9, HELIX 8 |
| Warranty | One-Year Warranty |
Product Manual
Quick Guide (pdf)
Accessory Resource Guide
HELIX Series In-Dash Installation Instructions
HELIX 8-9 In-Dash Installation Template
Product Warranty
Humminbird Warranty
The Humminbird warranty we offer is product-dependent. The warranty begins at the date of purchase. When requiring any service/repairs for your Humminbird product, you will need your original receipt of purchase for warranty coverage. If you do not have your receipt of purchase, we will reference your product's serial number and base your warranty coverage off the date of manufacture. We recommend that you write the serial number down somewhere outside of your boat to have it available for future reference.
Humminbird 2-Year Limited Warranty
This warranty covers the following products:
- All XPLORE models
- Optional: Additional third year of warranty is available withĀ product registration.*
- All APEX models
- All SOLIX models
- HELIX 8 / 9 / 10 / 12 / 15 models
- ICE HELIX 9 models (with MEGA Live or MEGA 360 Imaging)
- ICE Flasher models (ICE-55, ICE-45, and ICE-35)
- MEGA Live 1 Imaging transducersĀ
- MEGA Live 2 Imaging transducersĀ
- MEGA 360 Imaging transducers
Download Humminbird 2-Year Limited Warranty Terms (PDF)
Humminbird 1-Year Limited Warranty
This warranty covers the following products:
- HELIX 5 / 7 models
- ICE HELIX 5 / 7 models
- All accessories
- All cartography products
Download Humminbird 1-Year Limited Warranty Terms (PDF)
Humminbird Cartography 1-Year Limited Warranty
This warranty covers the following products:
- All cartography products including LakeMaster and CoastMaster charts
Download Humminbird Cartography 1-Year Limited Warranty Terms (PDF)
Product FAQs
N/A















