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Description
Ultra Series Piston Set By JE - 84.5mm .50mm Oversize Bore | 9.5:1 CR | Stock Stroke 89.6mm - BMW N55/S55NOTE: Image shown not actual parts. JEs Ultra Series pistons for sport compact and euro applications combine all of the best, most desirable piston features, such as thermal barrier crown coating, lateral gas ports, thick wall wrist pins, and a revolutionary new forging technology for the ultimate in strength. Premium, gas nitrided carbon steel rings are included Bore (in) 3. 327 Bore (mm) 84. 5 Top Compression Ring Thickness 0. 0400 Second
NOTE: Image shown not actual parts.JE’s Ultra Series pistons for sport compact and euro applications combine all of the best, most desirable piston features, such as thermal barrier crown coating, lateral gas ports, thick-wall wrist pins, and a revolutionary new forging technology for the ultimate in strength. Premium, gas-nitrided carbon steel rings are included
Bore (in) 3.327
Bore (mm) 84.5
Top Compression Ring Thickness 0.0400
Second Compression Ring Thickness 0.0480
Oil Ring Thickness 0.111
Forging Type FSR
Volume (cc) -14.70
Series JE Ultra Series
Piston Head Type Inv Dome/Dish
Pin Diameter (IN) 0.866
Compression Height 1.275
Make BMW
Wrist Pin Style - floating or press fit Floating
Wall Type CHAMFERED
Wall Thickness (IN) 0.230
Ringset Part Number JG1001-3327
Ring Brand ProSeal
Ringset Included Yes
Retainer Thickness 0.063
Retainer Lock Style Wire Lock
Retainer Lock Part Number 866-063-MW
Retainer Diameter (IN) 0.866
Replacement Single Piston 367880S
Piston Pin Inside Diameter 0.406
Piston Pin Material 9310 NICKEL CARBON STEEL ALLOY
Piston Material 2618
Piston Pin Length (IN) 2.250
Pin Offset Yes
Pin Brand JE Pistons
Pin Part Number 866-2250-23-93C
Pin Included Yes
Pin Diameter (mm) 22.00
Oil Rail Support Included No
Deck Clearance 0.000
Brand JE Pistons
OE Part #'s:
11-25-8-619-196 / 11 25 8 619 196 / 11258619196
11-25-7-645-958 / 11 25 7 645 958 / 11257645958
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.1 ★★★★★
Based on 216 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