Description

The Mercury MerCruiser Quicksilver 384071 Pipe Plug is a threaded pipe plug fitting used in select Mercury / MerCruiser marine service applications. This listing is for a pack of 5 plugs. Each plug uses a 1/2-14 NPT thread configuration and is suited for applications where the factory parts diagram calls for Mercury part number 384071.

Key Features

• Mercury MerCruiser / Quicksilver pipe plug
• Part number: 384071
• Sold as a pack of 5
• Thread configuration: 1/2-14 NPT
• Standard square-head or hex-recessed pipe plug style
• Approximate weight: 0.05 lb
• Approximate package dimensions: 2.25 in L x 2.00 in W x 1.00 in H

Product Compatibility

Fits select Mercury / MerCruiser assemblies that call for 384071 in the factory parts diagram.

Fitment Notice

Confirm fitment by the exact Mercury / MerCruiser engine, drive, or component diagram before ordering. Pipe plugs should be matched by both part number and thread specification, especially where NPT sealing is required.

When This Part Needs Replacement

Replace pipe plugs when threads are damaged, the plug is corroded, rounded, leaking, seized, or removed during service and no longer suitable for reuse.

Installation Notes

Inspect the threaded port before installation and use the sealing method specified by the service manual for the application. Avoid over-tightening NPT plugs, as tapered pipe threads seal by controlled interference and can damage the housing if forced.

Alternate/Superseded Part Numbers

• 384071

Parts Desk Insight

The important detail here is the 1/2-14 NPT thread. Matching the plug by part number and thread size helps avoid leaks or housing damage from a plug that looks close but does not seal correctly.

Shipping: Ships same or next day for fast Canada wide shipping.