Mercury MerCruiser Quicksilver Cylinder-Head-to-Coolant-Crossover Gasket 881620001
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Product Description
Mercury Quicksilver 27-881620001 seals the coolant-crossover connection at the cylinder head on specified MerCruiser 8.1L / 496 CID V8 engines. It is the small crossover-joint gasket, separate from the cylinder-head gasket and intake-manifold gasket set.
Key Features
- OEM part number: 27-881620001.
- Cylinder-head-to-coolant-crossover sealing location.
- GTIN: 745061689527.
- Catalog package size: 4.13 × 2.75 × 0.25 inches; packaged weight: 0.06 lb.
Engine Compatibility
Specific applications include MerCruiser 496 MAG engines with serials 0W060000–0W309999 and 8.1L Inboard H.O. engines with serials 0M026000–0M319190. Check the closed-cooling or coolant-crossover diagram for the installed engine.
Alternate Part Numbers
27-881620001 supersedes earlier gasket 27-881620.
Replacement and Installation
Replace the gasket when the crossover joint is opened or its sealing surface is damaged. Let the cooling system cool and depressurize, clean the mating faces and follow the engine service procedure for tightening and refilling.
Parts Desk Insight
The crossover uses separate joints at the cylinder heads. Check the required gasket quantity in the cooling-system diagram before starting the repair.
Manufacturer Parts Lookup
Open Mercury’s official parts finder and check the engine or drive serial number and assembly callout.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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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.