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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:
- 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
4.9 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
Good stuff. I like the bigger tube.
Good stuff. I like the bigger tube.
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Buen tamaño y calidad
Buen tamaño y calidad, llego muy rapido
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Larger than chapst
Its larger than the normal chap stick that you're accustomed too. Goes on very smooth , it has a creamy texture to it.
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Reviewed in the United States on March 22, 2026
★★★★★ 4
Black stuff in tube and in balm
I bought in January and the tube has black stuff in the tube and in balm.
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Reviewed in the United States on April 11, 2026
★★★★★ 5
Buy!! Worked well for my eczema
Love love love this product!! It’s AMAZING for my winter skin. The consistency is thick enough to deeply moisturize and keep my skin hydrated all day long. It made my skin super clear, smooth, and healthy-looking.
It also really helped clear up my eczema, especially the eczema and dry patches on my face. My dry spots became so much smoother and less irritated after using this consistently.
The jar lasted me a good while, which I loved since I use moisturizer constantly. There’s no fragrance, the application is super easy, and the consistency feels sooo nice on the skin. It absorbs really well and leaves my skin feeling soft and glowy.
It honestly worked so well that I didn’t even need to use primer before my makeup anymore 😭 that’s how good this product is!! I will always repurchase, especially during the winter 💕
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Reviewed in the United States on May 26, 2026