Air and Fuel› Nitrous Oxide Systems and Components

Nitrous Express

Nitrous Express - 4AN X 4AN MALE UNION - 16121

$10.92

SKU: N004 16121

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Nitrous Express 16121 is a male union fitting designed for use in nitrous oxide systems. It features a straight angle and is constructed from aluminum. This fitting has a -4AN x -4AN x -4AN fitting size and NPT thread type, with one piece included.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandNitrous Express
Part NumberN004 16121

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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