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.
Pt Coupling · Hardware & Fasteners
30WAL
In stock · ships from Knoxville
This is a 3-inch aluminum dust plug for cam and groove (camlock) couplings used on tanker trailers, such as dry bulk, crude oil, and fuel haulers.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 3 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Other applications
Other applications
Fits any standard 3-inch cam & groove female coupler (Part W style). Always confirm the coupler size and style before ordering.
Part data verified against 3 catalog sources
Numbers this part supersedes or interchanges with. Showing 2 of 2.
Different year, make, or config? Get a confirmation against your truck in under a minute.
It seals the female coupler when hoses are disconnected, keeping dirt, moisture, and debris out of the line. The plug includes a chain tab for tethering to the trailer to prevent loss. Replace this plug if the aluminum body is cracked, the sealing surface is damaged, or if it no longer provides a tight dust seal.
Part Number: 30WAL
3 ALUM DUST PLUG
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
