Moderate — 2–4 hours
Description
The Heli-Coil system offers a reliable method for restoring damaged threads in various materials such as aluminum, magnesium, cast iron, and bronze. It can be used to repair threads in critical components like spark plug ports, oil drain plugs, and cylinder head bolt holes.
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 | Helicoil |
| Part Number | H01G 5521-7 |
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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