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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 N54NOTE: 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) -22.00
Series JE Ultra Series
Piston Head Type Inv Dome/Dish
Pin Diameter (IN) 0.866
Compression Height 1.244
Make BMW
Wrist Pin Style - floating or press fit Floating
Wall Type CHAMFERED
Wall Thickness (IN) 0.150
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 367878S
Piston Pin Inside Diameter 0.566
Piston Pin Material 5115 LOW CARBON STEEL, CASE HARDENED
Piston Material 2618
Piston Pin Length (IN) 2.250
Piston Avg Wt 337
Pin Offset Yes
Pin Brand JE Pistons
Pin Part Number 866-2250-15-51C
Pin Included Yes
Pin Diameter (mm) 22.00
Oil Rail Support Included No
Deck Clearance 0.000
Brand JE Pistons
OE Part # 11-25-7-577-581 / 11 25 7 577 581 / 11257577581
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
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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.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
Excellent Everyday Product That Just Works
Color: Crystal Clear
This turned out to be a really solid purchase and honestly exceeded my expectations. Sometimes products online look great in the listing but end up feeling cheap or disappointing once they arrive — thankfully that wasn’t the case here at all.
Right away, I noticed the quality felt much better than expected. Everything feels sturdy, well-finished, and designed with actual everyday use in mind. It doesn’t feel flimsy or poorly made, and that immediately gave me confidence that it’ll hold up well over time.
Another thing I appreciated was how easy everything was to set up and use. No confusion, no unnecessary complications, and no fighting with instructions. It worked correctly right away and did exactly what I needed it to do.
What really stands out after using it consistently is the reliability. It performs smoothly every time without any annoying little issues or frustrations. That may sound simple, but products that are dependable and hassle-free are honestly worth their weight in gold these days.
A few things I really liked:
Solid overall build quality
Easy and straightforward to use
Reliable performance
Feels durable and well-designed
Looks better in person than expected
Great value for the price
Overall, I’m extremely happy with the purchase. It’s one of those products that quietly makes life easier without demanding attention, and those are usually the best kinds of purchases.
Definitely an easy 5-star review from me. Would absolutely recommend it.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Precise fit, looks great, easy installation
Color: Crystal Clear
t
This a great product! I
It installed in under 5 minutes- so easy .Precision fit
for my Neo laptop. Cover is crystal clear so actual color of my laptop isn't changed. Also comes with a screen protector and keypad protector.
Well worth the price.
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Reviewed in the United States on May 26, 2026
★★★★★ 4
Durable
Color: Crystal Indigo
Great product, looks great and durable.
The price is reasonable.
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Reviewed in the United States on May 9, 2026
★★★★★ 5
awesome simple case!
Color: Crystal Clear, Color: Crystal Clear
i got the clear case for my citrus neo which is exactly what i wanted! the beautiful color still shines through and the size fits perfectly. the case was easy to put on and feels secure + the feel of it is very smooth and feels nice. there’s padding at the bottom for the lil standers which is nice! compatibility is perfect size. didn’t use the screen protector because it’s not the best but i don’t care abt using it.
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Perfectly fit
Color: Crystal Clear
I recently purchased a Mac Neo protective case, and it has exceeded my expectations. The case fits my laptop perfectly, with precise cutouts that ensure all ports are easily accessible and well-aligned. I especially appreciate the crystal-clear design, which maintains the original look of the device while providing solid protection. The included keyboard cover is a great bonus—it feels comfortable to type on and doesn’t interfere with responsiveness. Overall, the case combines functionality, protection, and aesthetics very well.
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Reviewed in the United States on April 19, 2026