A CLOSER LOOKOutdoor Accessories
The display plate, without another complete mount.
RAM Marine Electronics Ball Base
C-size 1.5-inch ball
Buyer feedback ↓This rectangular RAM marine plate supplies a C-size ball beneath the display bracket. It is the upper component only, useful when the rest of a compatible mount is already in place.
- 6.25 × 2 inL × WCompare the bracket’s mounting holes≈ 1.9 × 0.59 bank-card lengths
- 1.5 inC-size ballUse matching C-size sockets≈ 1.8 nickel diameters
- 4 lb / 3 lbStandard / heavy-duty loadInclude the display and its bracketStandard-use load≈ 3.6 × 500 mL of waterHeavy-duty load≈ 2.7 × 500 mL of water
Amazon US · C-size 1.5-inch ball · Retailer link
THE QUICK TAKE
Is it right for you?
Buy it when you need a different upper plate for an existing C-size RAM setup. It can save replacing a good arm and boat-side base.
Skip it if you need a complete mounting kit. There is no socket arm or deck base in this package, and the display bracket’s holes still need to match.
01 / BUYING NOTES
Before you buy.
Keep the display’s own bracket.
The plate bolts beneath the fish finder’s separate bracket. Check fastener positions and clearance before ordering.
Connect the ball to a C-size arm.
The ball underneath needs a matching C-size socket arm. The plate cannot attach directly to a track or a deck.
02 / AMAZON REVIEWS
The buyers’ view.
What buyers like
- quality30
- sturdiness12
Mixed feedback
- fit14
- mounting options7
The small numbers are review mentions. Topics and sentiment are from Amazon’s customer-review overview.
Amazon US · Checked . Ratings may include other colors and sizes.
View source ↗03 / REVIEWS & VIDEO
See it in use.
See how it works, then read the findings behind the buying advice.
RAM® Live Ep. 22: Latest Accessories for Marine and Paddlesports
Covers the ball, arm and boat-base approach used by these mounts, alongside other RAM marine products. Match the selected plate and ball size to your setup.
Watch on YouTube ↗Video and written sources are labeled by creator and tested scope. Manufacturer demonstrations explain use; they are not independent tests. No in-house hands-on testing is claimed.
Read 2 written sources Product scope is labeled · key findings in bold
RAM describes a pre-drilled rectangular marine plate with a C-size ball. It is a component for a compatible socket assembly rather than a complete mount.
RAM-111BU is the plate and ball only. The visually similar RAM-111U-B includes a short arm and lower base and is a different package.
04 / COMPARE
Different priorities.
Choose the tradeoff that fits how you will use it.
Swipe to see every alternative →
THIS GUIDERAM Marine Electronics Ball BaseRAM-111BU |  ALTERNATIVERAM Short Arm Fish Finder MountRAM-111U-B |  ALTERNATIVERAM Fish Finder Track MountRAM-111B-354-TRA1U | |
|---|---|---|---|
| Amazon price | $24.99 | $68.49 | $71.99 |
| Best for | Replacing only the upper display plate | A compact bolted-down display | A U-bracket display on a kayak track |
| System | Rectangular plate with C-size ball | Short C-size arm and round base | C-size ball, medium arm and rectangular plate |
| Installation | Match bracket holes and socket size | Support the deck and match bracket holes | Check rail channel and bracket holes |
| Consider | No arm or lower base | No sideways swing arm | Track stiffness limits the installation |
| Explore | Read buying guide →Amazon source ↗ | Read buying guide →Amazon source ↗ | Read buying guide →Amazon source ↗ |
About these everyday comparisons
Approximate comparisons to familiar objects: a bank card’s 3.37-inch long edge, a Letter sheet’s 11-inch long edge, or a US nickel’s 21.21 mm diameter / 5 g weight. Water comparisons exclude the container’s weight. Capacity comparisons describe volume, not exterior size or how food fits. Reference pictures identify the object; use the labeled ratio for the comparison.
05 / PRICE HISTORY
The price over time.
RAM Marine Electronics Ball Base · C-size 1.5-inch ball · Amazon US
The chart legend identifies Amazon and new-offer prices when available. New offers can include marketplace sellers. Coupons, shipping and size/color selections can change the final price. Blank periods are missing observations, not a zero price.
06 / RELATED FINDS
A few useful extras.
For the way you plan to use it.
Join the two C-size balls
RAM C-Size Short Double Socket Arm
This short arm connects a matching boat-side ball to the display plate’s ball.
Add a track-side base
RAM Track Ball Base
The Track Ball provides the lower C-size ball for a compatible kayak track.