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Arai XD-4 Diffuser

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Arai XD-4 Diffuser Rear Vent

Replacement rear top vents for the Arai XD-4 Helmets.  Snaps onto original vent base. Does not include base or screws. Sold as a pair.

Product Style RevZilla Item # Manufacturer Product # Availability
Black 821407 4132 In Stock: Ships within 24 hours
Frost Black 821403 4135 Only 3 Left: Ships within 24 hours
White 821406 4131 In Stock: Ships within 24 hours
Dark Smoke 821409 4134 Out of Stock
Aluminum Silver 821408 4133 Only 3 Left: Ships within 24 hours


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Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

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