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Ships within 48 hours · Estimated delivery Sep 20 - Sep 25
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Description
Mercury Mariner 78439 76509A3 Outboard Power Trim Tilt Cylinder Ram PistonPart Number(s) Included Power Trim Cylinder Ram Piston 78439 76509A23 92194A14 91294A20 (Port or Starboard) Please see NOTE in other Details section General Application Compatibility Some 1970's & 1980's Mercury Outboards (Check Your parts diagram or match the part on your outboard) May Work on These Horsepowers 40hp 50hp 60hp 70hp 80hp 800 90hp 900 100hp 1000 115hp 1150, 125hp 1250 150hp 1500 (and possibly others) Just Make sure the stamped number
Part Number(s) Included
- Power Trim Cylinder Ram Piston 78439 / 76509A23 / 92194A14 / 91294A20 (Port or Starboard)
- Please see NOTE in other Details section
General Application / Compatibility
-
Some 1970's & 1980's Mercury Outboards (Check Your parts diagram or match the part on your outboard)
- May Work on These Horsepowers 40hp 50hp 60hp 70hp 80hp 800 90hp 900 100hp 1000 115hp 1150, 125hp 1250 150hp 1500 (and possibly others)
- Just Make sure the stamped number 78439 matches yours.
Other Details
- Freshwater Used Parts
- NOTE: There is some side to side play on the mounting bolt on the bracket for this, (this was not present on the other side) It's not terrible and probably won't be noticeable once installed and has a load on it. To clarify it's like the hole where the bolt goes through on the cylinder is slightly rounded out larger than the diameter of the bolt thus creating some play.
- Cylinder / Piston moves freely
- Overall Good Condition!
Purchase with confidence!
1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 1
You Get What You Pay For! A Piece Of Junk!
Size: 1 Panel
Flimsy and a piece of junk. Don’t waste your money. Assembly is a pain because it is so flimsy. Divider is thin. You can see right through it. Very wobbly.
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Reviewed in the United States on February 25, 2026
★★★★★ 4
Instructions are useless
Size: 1 Panel
The instructions are poorly written and not very helpful. The divider itself is easy to assemble, and honestly, it would’ve been quicker if I had skipped the directions altogether. Once put together, though, it works as intended.
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Reviewed in the United States on February 20, 2026
★★★★★ 5
This was the best
Size: 1 Panel
This divider is great for creating a little privacy or separating a small area without taking up much space. The fabric is thick enough to block visual clutter, and the frame is lightweight but stable once it’s opened. It folds flat for storage, which is convenient if you only need it occasionally. Assembly was straightforward, and it was the perfect size. It’s a practical piece for apartments, studios, or home offices where you want a quick, temporary partition.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Good privacy screen
Size: 1 Panel, Size: 1 Panel
This is a good privacy screen that's easy to assemble and looks nice. Be a little careful moving it, as the corners can twist. It's sturdy once in place, and the thick material is completely opaque. If the folds bother you, you might want to iron it, but I'm happy with it as is.
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Reviewed in the United States on March 30, 2026
★★★★★ 3
Lightweight divider that works well for video call backgrounds
Size: 1 Panel
This divider works fine for what it is, but it’s definitely on the lightweight side.
Setup was very easy and only took a few minutes. The frame is fairly light, so it’s easy to move around or reposition if needed. That said, the tradeoff is that it’s not especially sturdy. It stands fine on its own but I wouldn’t expect it to handle much bumping or movement.
I mainly bought it to use as a background for Zoom calls when I’m working from my den, and for that purpose it works great. The fabric panel blocks the room behind me and gives a cleaner background on camera.
It’s not huge though. To keep the camera from seeing around it, I have to position it directly behind my chair. If you’re expecting it to divide a large room or create a big privacy barrier, it may feel a bit small.
Overall, it does the job and works well for temporary setups or video call backgrounds, but the lightweight frame keeps it from feeling like a premium divider.
The product description and photos are accurate.
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Reviewed in the United States on March 12, 2026
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