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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23
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Description
Stolen Slab Top Load Stem BlackThe Slab stem design features minimal machining to keep cost low and strength high. The small brass badge adds a unique style with Cold forged body and face plate from 6061 Aluminum for high strength. Recessed top face for a clean fork preload bolt. 6062 face plate recessed top plate for a flush mount preload bolt Product Specifics Stem Type: Top Load Rise: 31 Reach: 50 S. H. I. S. Stem Clamp Diameter: 28. 6 Bar Clamp Diameter (mm): 22. 2 Color: Black
The Slab stem design features minimal machining to keep cost low and strength high. The small brass badge adds a unique style with Cold-forged body and face plate from 6061 Aluminum for high strength. Recessed top face for a clean fork preload bolt.- 6062 face plate
- recessed top plate for a flush mount preload bolt
Product Specifics
- Stem Type: Top Load
- Rise: 31
- Reach: 50
- S.H.I.S. Stem Clamp Diameter: 28.6
- Bar Clamp Diameter (mm): 22.2
- Color: Black
- Defined Color: Black
- Steerer Clamp Diameter: 1-1/8"
- Stack Height: 30
Today's Stock Status
Currently not available
UPC: 811652013269
EAN: Not available
Manufacturer Part Number: S326
SM8937
185391-Q0-L
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
4.0 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Very Expensive
Had one cylinder misfiring so replaced coil and spark plug. Runs fine now, but old plug looked shot after only 5 months so I think the coil was the problem. Really good plug so far but very expensive.
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Reviewed in the United States on February 12, 2026
★★★★★ 5
A reliable set of spark plugs.
They’re made in Germany, what else can you say
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Reviewed in the United States on April 24, 2026
★★★★★ 5
Work as well as the NGK's
Bought for a 2016 Mazda 6, I had NGK's in it for 5 months and had misfires, didnt have the money to throw more NGK's at it for troubleshooting. Bought these to try and they work great so far.
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Reviewed in the United States on April 29, 2026
★★★★★ 4
Faulty plug? Otherwise great set
Definitely better than the old plugs that probably had 80k miles on them.
The one star off is because I had a misfire after installing. Not sure if I damaged the plug or what, but a reinstall didn't fix the misfire. In my genius, I rushed to try to gap it and ended up breaking the iridium tip. Put the old plug into cylinder 3 (where the misfire was) and it was fine.
Gonna have to get a new single tomorrow at my local shop, but a bit frustrating to get a misfire after install.
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Reviewed in the United States on April 27, 2026
★★★★★ 5
Upgrade from OEM
After seeing a quite ludicrous $403 quote to change 4 spark plugs in a Mazda3 I decided to show my son how easy it is.
These were an upgrade from OEM parts. They were gapped perfectly for the car.
They took 20mins to fit and work fine.
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Reviewed in the United States on February 11, 2026