Mercury - Pipe Plug - 22-8M0204652
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The Mercury Quicksilver Pipe Plug 22-8M0204652 is an OEM threaded sealing plug used in select Mercury outboard and MerCruiser engine plumbing applications. It is commonly used to seal internal fluid passages, cooling circuits, manifolds, or block-related threaded ports where the correct pipe plug is required.
Key Features
- Genuine Mercury/Quicksilver pipe plug
- Part number: 22-8M0204652
- Also referenced as 8M0204652
- NPT-style threaded engine pipe plug
- Approximate dimensions: 0.45" L x 0.53" W x 0.53" H
- Approximate weight: 0.02 lb
- Used in select fluid, cooling, manifold, or block plumbing locations
Engine Compatibility
Used on select Mercury outboard and MerCruiser engine applications. Fitment depends on the specific engine model, block architecture, manifold layout, and parts diagram location.
Serial Number Fitment Notice
Verify fitment by engine serial number and parts diagram before ordering. Threaded plugs can vary by thread type, size, sealing method, and installation location.
When This Part Needs Replacement
Replace this pipe plug if it is stripped, rounded, corroded, leaking, seized, missing, or damaged during service. It should also be inspected when servicing nearby cooling passages, manifold ports, drain points, or fluid channels.
Installation Notes
Confirm the thread size and sealing method before installation. Use only the thread sealant or O-ring arrangement approved for the specific Mercury application. If used with Mercury O-ring 25-20863, inspect or replace the O-ring at the same time to help prevent leaks.
Alternate/Superseded Part Numbers
Primary Mercury references: 22-8M0204652 and 8M0204652. Related sealing component: Mercury O-ring 25-20863, where applicable.
Parts Desk Insight
Small pipe plugs are easy to overlook, but the wrong thread style or sealing method can create leaks or damage the casting. Match the plug by part number and diagram location rather than by appearance alone.
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.