Air and Fuel› Nitrous Oxide Systems and Components
Holley
6AN-660 BOTTLE NUT ADAPTER-AL7075-BLACK
SKU: H00E 16226NOS
Beginner — under 30 min
Description
It features a black anodized finish for enhanced aesthetics and corrosion resistance. The adapter is designed with a radius exit for maximum flow and is lighter than chrome-plated alternatives. It fits 660-style bottle valves and is available in -4, -6, and -8 AN sizes.
Fitment
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Specifications
| Brand | Holley |
| Part Number | H00E 16226NOS |
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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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