Aluminum Alloy Fish Finder Mount with C Size 1.5" / 38mm Ball, 5.9" Arm Marine Electronic Mount
Quick take
This aluminum marine fish finder mount is built around a C-size 1.5 inch (38 mm) rubber ball, with a 5.9 inch double-socket arm and 360-degree rotation for positioning your electronics. Buyers describe it as solid, stable, and easy to install for compatible Garmin and other supported units, but you need to double-check model compatibility because it is not designed for certain Humminbird models.
Pros and cons
Pros
- Aluminum alloy construction intended for harsh marine environments.
- 360-degree rotation for flexible viewing/aim.
- Rated for up to 15.5 lbs at rest and 4.5 lbs in motion.
- Fits C-size 1.5" (38 mm) ball style setups.
Cons
- Not compatible with several listed Humminbird models (and some specific units may require a different mount geometry).
- Some buyers note it does not include stainless hardware, so you may need to source mounting fasteners separately.
What buyers think
Buyer-review evidence for this mount is generally positive and centers on build strength and stability once tightened. Several reports describe the mount as “solid” and “heavy duty,” with good hold for the attached electronics. Install feedback is also favorable, with buyers saying it is straightforward to set up and secure. A few buyers mention it ships without stainless hardware, which is a minor but practical consideration when you are preparing for a clean, corrosion-resistant boat installation.
Note: the available review excerpts are limited in quantity, so patterns beyond stability, fit, and install ease are harder to confirm. Still, the recurring themes align closely with the mount’s design goals: a rigid arm, a secure ball interface, and rotation for aiming.
What this mount is, and how it works
This is a boat electronics mount designed to pair with a C-size 1.5 inch / 38 mm ball base style setup. Mechanically, it uses a round base (2.4" diameter), a 5.9" double socket arm, and a rectangular plate for mounting to your boat. The C-size rubber ball helps keep the connection secure while still allowing 360-degree rotation, so you can reposition the electronics for better viewing and use.
Compatibility checklist (the part that matters most)
Before buying, verify your fish finder or chartplotter is in the supported list and that you are using a C-size 1.5" (38 mm) ball configuration.
- Garmin compatibility examples: GPSMAP 722/722xs/723/723xsv and 742 series, plus Striker Plus 5cv/7cv/7sv and ECHOMAP Plus 72cv/73cv/74cv/75cv/77cv.
- Lowrance compatibility examples: HDS Carbon 7, HDS LIVE 7, Hook Reveal 7 Series, Hook Reveal 9 Series, Elite FS 7, Elite FS 9.
- Humminbird and Raymarine: supported broadly, but there is an explicit list of models that are not compatible, including Humminbird Helix 5/7/8/9/10/12/15 and Solix 10.
Who should take extra care: If your setup is Humminbird Helix (listed above) or Solix 10, avoid this mount, since it is specifically called out as incompatible.
Load capacity and on-water stability
The mount is rated for 15.5 lbs at rest and 4.5 lbs in motion. In practical terms, that gives you a target to confirm your fish finder or depth finder’s overall weight and mounting setup fall within the intended range. Buyers also repeatedly comment on the hold being stable once tightened, which suggests the ball connection and arm design do what you want during typical boat movement.
Installation and fit considerations
Installation is generally described as easy, with buyers saying the mount secures tightly and keeps electronics stable. One small real-world variable to plan for is mounting hardware: a few buyers note stainless hardware is not included. If you prefer corrosion-resistant fasteners, have appropriate marine-grade screws/bolts ready so you can complete the install cleanly.
Pros and cons in plain English
Best for
- Boat owners using compatible Garmin, Lowrance, or other supported units who want an adjustable arm.
- Anyone specifically using a C-size 1.5 inch (38 mm) ball mounting style.
- Shoppers who care about a rigid, “tightened” feel and easy aiming.
Not ideal for
- Humminbird Helix models listed as incompatible, or the Humminbird Solix 10.
- Buyers who want a kit that always includes all stainless mounting hardware, without sourcing their own.
Verdict
If your fish finder or chartplotter matches the supported compatibility list and your setup uses the C-size 1.5" / 38 mm ball interface, this aluminum mount looks like a straightforward way to get a stable, rotation-friendly electronics position. The biggest buying caveat is compatibility, especially with the explicitly excluded Humminbird models, so confirm your exact unit before ordering.
FAQs
Is this fish finder mount compatible with Humminbird?
It is generally compatible with Humminbird and Raymarine, but it is explicitly not compatible with several Humminbird models, including Helix 5, 7, 8, 9, 10, 12, 15 and Solix 10. Check your exact model before purchasing.
Will it work with Garmin fish finders and chartplotters?
Yes, it is listed as compatible with multiple Garmin models such as GPSMAP 722 series, Striker Plus 5cv/7cv/7sv, and ECHOMAP Plus 72cv through 77cv.
What size ball does this mount use?
It uses a C-size 1.5 inch / 38 mm rubber ball interface.
How much weight can it support?
The mount is rated for up to 15.5 lbs at rest and 4.5 lbs in motion.
Does the mount include stainless mounting hardware?
Some buyers report that stainless hardware is not included. If you need marine-grade fasteners, you may want to source them separately based on your boat surface and mounting method.
Specifications
| Product Title | Aluminum Alloy Fish Finder Mount with C Size 1.5" / 38mm Ball, 5.9" Arm Marine Electronic Mount Compatible with Garmin,Humminbird, Lowrance and More |
|---|---|
| Category | Electronics > GPS, Finders & Accessories > GPS System Accessories > Vehicle Mounts |
| Brand | Leenconghui |
| Manufacturer | Shenzhen Chonghui Technology Co., Ltd |
| Model Name | BM-72 |
| Model Number | BM-72 |
| Color | Black |
| Compatible Devices | Fish Finders |
| Compatible Phone Models | Garmin,Humminbird, Lowrance fish finders and GPS chartplotters |
| Mounting Type | Other |
| Additional Features | Rotatable |
| Weight Capacity Maximum | 15.5 Pounds |
| Water Resistance Level | Water Resistant |
| Compatible with Vehicle Type | Boat |
| Arm Length | 7.5 Inches |
| Shape | rectangular prism |
| Enclosure Material | Aluminum |
| UPC | 749739335532 |
| Mfr Part Number | BM-72 |
| Warranty Description | 1 |
| Built-In Media | Round base, Double socket arm, rectangle plate |
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