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Description
Piston Set By JE - 87.5mm +.50mm Oversize Bore | 12.5:1 CR | Stock Stroke 91mm - BMW S54NOTE: Image shown not actual parts. JE Pistons is the leader in forged racing pistons. With 70 plus years of experience, in house forging, and industry leading technology, JE Pistons are designed to perform at the top levels of all forms of motorsports. Bore (in) 3. 445 Bore (mm) 87. 5 Top Compression Ring Thickness 0. 0400 Second Compression Ring Thickness 0. 0480 Oil Ring Thickness 0. 111 Forging Type FSR Volume (cc) 9. 20 Series JE Pistons Piston
NOTE: Image shown not actual parts.JE Pistons is the leader in forged racing pistons. With 70-plus years of experience, in-house forging, and industry-leading technology, JE Pistons are designed to perform at the top levels of all forms of motorsports.
Bore (in) 3.445
Bore (mm) 87.5
Top Compression Ring Thickness 0.0400
Second Compression Ring Thickness 0.0480
Oil Ring Thickness 0.111
Forging Type FSR
Volume (cc) -9.20
Series JE Pistons
Piston Head Type Dome
Pin Diameter (IN) 0.827
Compression Height 1.271
Make BMW
Wrist Pin Style - floating or press fit Floating
Wall Type CHAMFERED
Wall Thickness (IN) 0.150
Ringset Part Number JG1001-3445
Ring Brand ProSeal
Ringset Included Yes
Retainer Thickness 0.063
Retainer Lock Style Wire Lock
Retainer Lock Part Number 827-063-MW
Retainer Diameter (IN) 0.827
Replacement Single Piston 297120S
Replaced By 289135
Piston Pin Inside Diameter 0.527
Piston Pin Material 5115 LOW CARBON STEEL, CASE HARDENED
Piston Material 2618
Piston Pin Length (IN) 2.250
Piston Avg Wt 346
Pin Offset Yes
Pin Brand JE Pistons
Pin Part Number 827-2250-15-51C
Pin Included Yes
Pin Diameter (mm) 21.00
Oil Rail Support Included No
Deck Clearance -0.008
Brand JE Pistons
OE Part #: 11-25-7-834-017 / 11 25 7 834 017 / 11257834017
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery 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.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Elmo Blankey
My little man took to this when he was 3 months old, so glad we could find a spare just in case! Size is good for a personally little carry around blankey. It’s durable, soft and a good price for what it is
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Reviewed in the United States on February 24, 2026
★★★★★ 5
Security elmo
Most kids have a security blanket, our daughter has a security elmo... i suggest getting 2 for when elmo needs his bath
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Snuggle bug
My son loves to snuggle with this. And the binkie attachment piece is a plus!
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Reviewed in the United States on March 20, 2026
★★★★★ 5
Great for a 2 year old Mickey lover!
Format: Hardcover
My 2 year old grandson loves these books. He wants someone to read them to him all the time. The books fit into the box with a handy handle that they came in and he takes them everywhere he goes!! They are small board books and perfect for him to handle.
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Great buy
Format: Hardcover
Perfect size little stories that you can cherish with your kids or grandkids
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Reviewed in the United States on May 17, 2026