Double Ball Mount for Garmin and Lowrance Fish Finders
By RAM Mounts Google Search | Published: 2026-10-20
Category: Comparisons
Compare RAM double ball mounts for Garmin and Lowrance fish finders. Learn which base fits your device and the trade-offs between quick-release and universal AMPS mounting.
Quick Answer
For most Garmin Striker or echo units, choose the RAM-B-101-G4 for a direct-fit base; for Lowrance Elite, HOOK, or MARK models, the RAP-101U-LO11 offers a quick-release adapter that makes swapping units fast.
Direct-Fit vs. Universal AMPS: What’s the Difference?
The RAM-B-101-G4 uses a round adapter base that attaches directly to the bottom of Garmin Striker and echo 4 Series units, so there’s no extra bracket or plate to align. That direct fit keeps the mount low and stable, which is helpful on smaller boats where space is tight.
In contrast, the RAM-B-101-G1U uses a universal AMPS hole pattern. It’s designed for Garmin GPSMAP 172–250 models, but the same pattern appears on many other marine electronics. That makes it a flexible option if you switch devices or move the mount between boats, but you may need to verify the hole spacing and use the included hardware to create a secure fit.
Quick-Release vs. Permanent Mounting
The RAP-101U-LO11 includes an adapter base that inserts into the back of compatible Lowrance units, and it doubles as a quick-release mechanism. You can remove or transfer your fish finder in seconds without loosening any knobs or screws—useful when you store your electronics at the end of the day or move them between kayaks.
The Garmin mounts, however, are more permanent. Once installed, they stay put until you remove the hardware. That’s fine if the mount lives on the boat, but it means a bit more work if you want to take the unit off regularly.
Ball Size and Adjustment Range
The RAM-B-101-G4 features a 1-inch patented rubber ball and socket system with adjustment points at both ends of the arm. That gives you a wide range of tilt and swivel, so you can position the screen to cut glare or reach a comfortable viewing angle.
The RAP-101U-LO11 uses a 1.5-inch ball system. The larger ball typically offers more holding power and smoother adjustment, which can be a plus if you run rough water or want to make fine-tuning easier. But the larger ball also means the mount is slightly bulkier, so it’s worth checking your console space.
Trade-Offs at a Glance
- Direct-Fit vs. Universal: The RAM-B-101-G4 is a direct-fit for Garmin Striker/echo 4 Series; the RAM-B-101-G1U uses a universal AMPS pattern that fits Garmin GPSMAP 172–250 and other devices with the same hole spacing. Direct-fit is simpler; universal is more flexible.
- Quick-Release vs. Permanent: The RAP-101U-LO11 offers a quick-release adapter for Lowrance units, so you can remove the head in seconds. The Garmin mounts are more permanent—fine for a fixed installation, but you’ll need tools to take the unit off.
- Ball Size: The Garmin mount uses a 1-inch ball; the Lowrance mount uses a 1.5-inch ball. Larger balls generally provide more holding power and smoother adjustment, but add a bit of bulk. If you run in rough water, the larger 1.5-inch ball may be worth the extra size.
Product Facts
- RAM® Double Ball Mount with Hardware for Garmin Striker + More: The RAM-B-101-G4 includes a 2.5" round base with universal AMPS hole pattern and a round adapter base that attaches directly to the bottom of Garmin echo and Striker 4 Series. This direct-fit base means no extra bracket or alignment work—just attach and go, which is ideal for a quick install on your Garmin unit.
RAM® Double Ball Mount with Hardware for Garmin Striker + More - RAM® Composite Double Ball Mount for Lowrance Elite-5, Mark-5 + More: The RAP-101U-LO11 includes a 2.5" round base with universal AMPS hole pattern and an adapter base that inserts directly to the back of Lowrance Elite-5, Elite-7, HOOK, and MARK models, serving as a quick-release mechanism. The quick-release adapter lets you remove or transfer your Lowrance fish finder in seconds, making it easy to secure your device when you leave the boat.
RAM® Composite Double Ball Mount for Lowrance Elite-5, Mark-5 + More
Which Mount Fits Your Setup?
Best for
- Garmin Striker or echo 4 Series owners who want a simple, direct-fit mount
- Lowrance Elite, HOOK, or MARK owners who value quick removal and transfer
Not for
- Garmin users who need a quick-release feature—choose a mount with that capability instead
- Lowrance users who prefer a permanent, low-profile mount without the quick-release adapter
