Beginner — under 30 min
Description
With an overall diameter of 5-1/2 inches, this register is compatible with all types of 4-inch flex duct. Its durable plastic construction ensures long-lasting performance, and it offers 360-degree rotation for easy airflow adjustment. The register is available in Dura-Beige, Walnut, Black, and White, and comes with a limited 90-day warranty.
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 | D&W INC. |
| Part Number | D03W 3940DB |
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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