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Description
RockShox Tapered CSU, ZEB Ult B1+ Butter Wagon 44OS BlackTapered steerers (when offered) are designated by 1. 5>1 1 8" spec info Replacement CSU (crown steerer upper) units and BoXXer crowns BoXXer top crown sizing reference (head tube+headset): short (3 4" drop): under 160mm tall (2" drop): 160 190mm Today's Stock Status Currently not available UPC: 710845933851 EAN: Not available Manufacturer Part Number: 11. 4018. 090. 123 RS27001 203390 Q0 L
- Tapered steerers (when offered) are designated by 1.5>1-1/8" spec info- Replacement CSU (crown/steerer/upper) units and BoXXer crowns
- BoXXer top crown sizing reference (head tube+headset): short (3/4" drop): under 160mm/tall (2" drop): 160-190mm
Today's Stock Status
Currently not available
UPC: 710845933851
EAN: Not available
Manufacturer Part Number: 11.4018.090.123
RS27001
203390-Q0-L
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.4 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Fits 2011 335xi n55 prefect
Fits my 2011 335xi n55 engine perfectly. Comes on and off easily and gets the filter loose quickly. Amazing quality
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Reviewed in the United States on March 15, 2026
★★★★★ 5
Works perfect for BMW S63 engine.
I used this to change the oil on my BMW M8 with the S63 engine. It was a perfect fit. It extended far enough onto the filter housing to be quite secure with no risk of slipping off and stripping the housing. It was snug on the housing and did not bind up due to having a loose fit. The tool feels well-built and I suspect it will outlive me given my occasional personal use. It would still probably hold up well even for daily shop use as long as it was not abused (repeatedly dropped, slammed around, etc).
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Reviewed in the United States on September 8, 2025
★★★★★ 5
Made well and great fit
Fits perfectly and is made well
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Make sure you know the size
Yes worked like a charm
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Reviewed in the United States on April 5, 2026
★★★★★ 5
Great fitment, made changing the oil filter easy
Perfect fit for my m760i oil filter housing.
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Reviewed in the United States on April 24, 2026