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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22
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Description
Piston Set by JE - 86.5mm Standard Bore | 11.5:1 CR | Stock Stroke - 89.6mm - S52 BMWNOTE: 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. 406 Bore (mm) 86. 5 Top Compression Ring Thickness 0. 0400 Second Compression Ring Thickness 0. 0480 Oil Ring Thickness 0. 111 Forging Type FSR Volume (cc) 9. 40 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) 3.406
Bore (mm) 86.5
Top Compression Ring Thickness 0.0400
Second Compression Ring Thickness 0.0480
Oil Ring Thickness 0.111
Forging Type FSR
Volume (cc) -9.40
Series JE Pistons
Piston Head Type Inv Dome/Dish
Pin Diameter (IN) 0.866
Compression Height 1.220
Make BMW
Wrist Pin Style - floating or press fit Floating
Wall Type CHAMFERED
Wall Thickness (IN) 0.150
Ringset Part Number JG1001-3405
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 297172S
Replaced By 288990
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 291
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 0.030
Brand JE Pistons
OE Part #: 11-25-1-405-702 / 11 25 1 405 702 / 11251405702
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
4.3 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Great Suit!
Size: 5, Color: Sky Blue
It fit well and looked very nice on my son
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
★★★★★ 5
Adorable & Stylish Suit
Size: 4, Color: Light Grey
This suit is perfect for special occasions! The linen fabric is lightweight and breathable, great for warmer weather. The slim fit looks sharp, and the light grey color is classy. Comfortable for kids to wear and ideal for weddings or events!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
★★★★★ 5
GQ KIDS...For the love of being FLY!
Size: 8, Color: Sky Blue
I am highly suggesting this suit for purchase because the color alone is a standout and will have people asking where did you get the suit from? The length of the bowtie is adjustable, the color is bright and lively, the fabric is pure quality. You can run a hot iron over it or a steamer to get the fold lines out of it from how it was packaged, but it seems that even if you just hung it up in the bathroom while running a hot shower, the wrinkling would drop. I think the purchase price is good for all that you get which is a quality blazer, great slacks and a bowtie. It's a one stop shop for a graduation event, dinner, a formal party or even a photoshoot. My nephew wears a size 7 or 6-8, so I ordered a size 8 to be safe and it fits nicely.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026
★★★★★ 4
Cute sky blue linen suit for toddler!
Size: 3, Color: Sky Blue, Size: 3, Color: Sky Blue
I got this Trasign Kids Linen Suit in sky blue for my 2 year old, thinking my wife said “blue” (turns out she meant navy or something darker 😅). I actually really like the light, airy sky blue. It’s fresh, summery, and looks adorable on him for photos or special occasions. My wife? Not so much. She immediately said “baby blue ugly” 😅😅
On the plus side:
• Soft fabric – linen blend feels gentle and breathable on little skin, no itchiness or stiffness.
• Nicely packaged – arrived with very little wrinkling (barely needed steaming), which is a win for linen.
• Good fit for a toddler – true to size, easy to button, and the shorts/pants have adjustable waist for growing kids.
• Looks sharp once on – the set gives that classic little gentleman vibe without feeling over the top.
It’s a quality piece overall, just a classic case of “what one spouse loves, the other doesn’t” on the color. If sky blue works for your family (or you’re shopping solo like me 🤣), it’s a solid buy.
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Reviewed in the United States on February 22, 2026
★★★★★ 5
Awesome quality for the price
Color: Black, Size: 8
Ordered size 8 for my son first communion great fit for the price was excellent
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
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