Towing Equipment› Trailer Wiring and Electronics

TRU-FLATE

C21-03B COUPLER BRASS 1/4 I/M 3/8 M

$21.43

SKU: T064 C21-03B

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item

Description

The Tru-Flate C21-03B is a brass female coupler with a 1/4" internal thread and 3/8" NPT thread. It features hardened steel balls and stainless steel springs, with heat-treated coupler plugs to reduce wear.

This coupler is designed for air line and tire applications and has a maximum working pressure of 300 PSI. It is compatible with Tru-Flate 10 and 100 type series and other manufacturers' units.

Fitment

Fitment Guaranteed

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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.

Available on iOS & Android

Specifications

BrandTRU-FLATE
Part NumberT064 C21-03B

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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