Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.

Post Onsite · Hardware & Fasteners
63P-6
In stock · ships from Knoxville
This is a 3/8 inch brass insert fitting designed to reinforce the end of plastic or nylon tubing when making a compression connection.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
We don't publish fitment for this part yet. Rather than guess, get it confirmed against your truck in under a minute.
It prevents the soft tubing from collapsing under the compression nut, ensuring a tight, leak-free seal. Typically used in low-pressure pneumatic, hydraulic, or fluid transfer systems. Replace when the insert is damaged, corroded, or when installing new tubing.
Part Number: 63P-6
3/8 INSERT
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more