Maglock Helmet Compatibility Guide: Which Helmets Fit Maglock?
Harris Race RadiosMaglock is the most widely used magnetic quick-release coupling for forced air helmet cooling systems in motorsport. But not every helmet accepts a Maglock fitting straight out of the box — some brands need a dedicated adapter to get a secure, airtight connection. Here's a brand-by-brand breakdown so you order the right parts the first time.
Maglock Helmet Compatibility Table
| Helmet Brand | Adapter Needed? | Notes |
|---|---|---|
| Bell | No | Bell's forced air helmets use the standard 1.5" round Maglock fitting natively — connects directly. |
| Stilo | Yes | Requires a Maglock helmet adapter (adapter code HEL-MAG-AD-2) to bridge Stilo's proprietary air inlet geometry. |
| Roux by Pininfarina | Yes | Requires a Maglock helmet adapter for a secure, airtight seal. |
| Arai | Check fitment | Some forced air Arai models need an adapter — contact us to confirm your specific model. |
| Stand 21 | Check fitment | Contact us to confirm your specific model's air inlet fitting. |
| Zamp | Check fitment | Contact us to confirm your specific model's air inlet fitting. |
Why Fitment Matters
Using a generic Maglock connection on a helmet with an incompatible air inlet can cause air leaks, reduced cooling effectiveness, difficulty seating and releasing the coupling under race conditions, and potential damage to the helmet's air fitting. Getting the right adapter first time means your forced air cooling system works exactly as intended when you need it most.
Building a Complete Maglock System
A full Maglock helmet cooling system typically includes a helmet-side connector (or adapter, if required), a hose-side connector, and a genuine Maglock air hose running back to your cooling fan or air source. Not sure what you need? Contact us with your helmet brand and model and we'll confirm the right parts.
Frequently Asked Questions
Will Maglock fit my Bell helmet without an adapter?
Yes — Bell's forced air helmets use the standard 1.5" round Maglock fitting natively.
Does my Stilo helmet need an adapter for Maglock?
Yes — Stilo helmets require a dedicated Maglock helmet adapter (HEL-MAG-AD-2) due to their proprietary air inlet geometry.
What happens if I use the wrong Maglock fitting on my helmet?
You risk air leaks, reduced cooling performance, difficulty connecting or releasing under race conditions, and potential damage to the helmet's air inlet fitting.
I'm not sure what my helmet needs — who can help?
Contact Harris Race Radios with your helmet brand and model and we'll confirm the correct Maglock parts for your setup.