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UMI PERFORMANCE
UMI Performance 3/4in-16 4140 M/F Hex Adjuster 4-1/2in Length
SKU: U01C 90001
Easy — 1–2 hours
Description
Part #: 90001
4140 Chromoly Hex Adjuster. 4-1/2 Length, 1-3/4 threads. No jam nuts included.
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
MIA's Description
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | UMI PERFORMANCE |
| Part Number | U01C 90001 |
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Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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