Mercury MerCruiser Remote Oil Filter Adaptor Gasket 16779
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Mercury MerCruiser 16779 is a genuine OEM gasket used in the remote oil filter adaptor assembly on select MerCruiser engines. Current Mercury dealer references list it as 27-16779 GASKET, and current parts-catalog references place it specifically in the remote oil filter assembly where it seals the adaptor area rather than serving as a general-purpose engine gasket.
Key Features
- Genuine Mercury Marine OEM part number 16779 / 27-16779.
- Used as a gasket in the remote oil filter adaptor assembly.
- Current parts diagrams show quantity required: 2 in listed remote oil filter repairs.
- Current dealer listing shows GTIN / UPC 745061118515.
- Current dealer shipping specs are approximately 0.02 lb, 2.75 in. x 2.75 in. x 0.25 in.
Engine Compatibility
The strongest supportable fitment for 16779 is MerCruiser 4.3L and 4.3LX V6 remote oil filter applications. Current parts-catalog references place it in the remote oil filter assembly for 4.3L (Gen II) GM 262 V-6 1992-1995, 4.3LX (Gen II) GM 262 V-6 1992-1995, and 4.3L MPI Alpha/Bravo applications. Current overhaul-gasket references also identify it as GASKET, Adaptor, which supports the adaptor-specific use.
Serial Number Fitment Notice
Verify fitment by exact engine serial number and the correct remote oil filter parts diagram before ordering. This gasket is tied to the oil filter adaptor layout, so serial-based confirmation is the safest way to match the correct gasket and assembly position.
When This Part Needs Replacement
Replace this gasket whenever the remote oil filter adaptor is removed, or when the existing gasket is leaking, compressed, torn, or no longer sealing correctly. Because current parts diagrams place it directly in the adaptor stack, renewing it during remote oil filter service is usually the right move instead of reusing the old gasket. This is a practical service inference supported by its documented location in the remote oil filter assembly.
Installation Notes
Install 16779 only after confirming the correct MerCruiser remote oil filter diagram for the engine being serviced. Current parts diagrams show it used with related components such as the oil filter bracket, fittings, adaptor 16521001 or 860091T, bypass valve 22-878050, and related O-rings or seals in the same service area.
Alternate/Superseded Part Numbers
Current sources reviewed show 16779 as the active Mercury OEM reference for this gasket. The sources checked did not show a newer Mercury superseding number for this part.
Parts Desk Insight
With adaptor gaskets like this, the important match is the exact remote oil filter layout, not just the word “gasket.” A quick serial-number lookup usually prevents ordering the wrong seal from a nearby oil-system assembly that looks similar on paper.
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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
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