Aluminum Alloy Fish Finder Mount with 1.5in C Ball - Sturdy Marine Arm

In this review of the Aluminum Alloy Fish Finder Mount, the bottom line is simple: boaters who need a compact, rock-solid mounting solution for fish finders and chartplotters will appreciate this arm for its build quality and secure hold. The reviewer found the mount particularly useful for mounting Garmin, Lowrance and Humminbird electronics that accept a C size 1.5in ball; its aluminum alloy construction and multi-angle drill base make it a practical choice for anglers who want a dependable mount that resists corrosion and holds position in real use.

Key Features

• Aluminum alloy construction: Provides corrosion resistance and a rigid platform that stays stable in marine environments.
• 1.5in C size rubber ball: Delivers a tight grip with full 360-degree rotation while supporting up to 15.5 lbs at rest and 4.5 lbs in motion, so displays remain secure underway.
• 5.9in double socket arm: Offers leverage and adjustability to position devices at comfortable viewing angles without sagging.
• 2.4in round base with multi-angle drill pattern: Allows versatile mounting on flat surfaces and custom placement on boats or other vessels.
• Wide compatibility: Works with many Garmin, Lowrance, Humminbird and Raymarine units, making it a flexible option for mixed-brand setups.

Who It's For

This mount is aimed at anglers and small-boat owners who want a durable, compact mounting solution for fish finders and chartplotters that accept a 1.5in C ball. It suits users who value a rigid, metal mount over plastic alternatives and who need reliable holding power during normal boating and fishing conditions.

Those who should look elsewhere include owners of certain Humminbird models listed as not compatible and anyone who requires a longer reach or a different ball size; for very heavy or oversized displays, a purpose-built heavy-duty pedestal might be a better choice.

Pros & Cons

Pros

• Solid build quality from aluminum alloy gives confidence in longevity and corrosion resistance.
• Holds position well in real-world use and locks tight with compatible devices.
• Easy to install with a heavy-duty multi-angle drill base and straightforward hardware fit.
• Broad compatibility with many Garmin, Lowrance and Humminbird chartplotters and finders.

Cons

• Not compatible with several Humminbird Helix and Solix models, so confirm device fit before buying.
• Arm length is modest at 5.9in, which may limit placement options for some cockpit layouts.

Specifications

Material	Aluminum alloy
Ball size	C size 1.5in / 38mm rubber ball
Arm length	5.9in double socket arm
Base diameter	2.4in round base
Load capacity	15.5 lbs at rest; 4.5 lbs in motion
Compatibility	Garmin, Lowrance, Humminbird, Raymarine (check excluded Humminbird Helix/Solix models)

Our Verdict

The Aluminum Alloy Fish Finder Mount is a practical, value-minded choice for anglers who need a compact, sturdy mounting solution for compatible chartplotters and finders. Its metal construction, solid holding power and simple multi-angle base make it a sensible upgrade over cheap plastic mounts, offering dependable performance for most small-boat installations.

Frequently Asked Questions

Will this fit my Garmin unit?
It fits many Garmin GPSMAP, Striker and ECHOMAP Plus models that accept a 1.5in C ball; verify your model uses a C size ball mount.

Is it suitable for saltwater use?
Yes, the aluminum alloy construction is chosen for marine environments, but standard corrosion care and periodic checks of fasteners are recommended.

Can it handle large displays?
It supports up to 15.5 lbs at rest and 4.5 lbs in motion, so it is best for moderate-sized fish finders and chartplotters rather than very large, heavy units.