Mercury Quicksilver — MerCruiser 7.3L NAV 444 Turbocharger Gasket — 805841
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Mercury Quicksilver 805841 Turbocharger Gasket
Replace the gasket at the specified turbocharger joint during service on compatible MerCruiser 7.3L NAV 444 diesel engines. Mercury part 805841 is also listed with the catalog prefix 27-.
Compatible Applications
- MerCruiser 7.3L Bravo and MIE diesel, NAV 444 V8, 1994–1996, serial number 0F060000 and up. Confirm the engine serial number and diagram position before ordering.
Part Details
- Brand: Mercury Quicksilver
- Part number: 805841, also listed as 27-805841
- Product type: Turbocharger gasket
- Diagram: item 13 in the Turbocharger and Air Cleaner diagram
- Quantity at diagram position: 1 gasket
- Supplied individually
Key Features
- Genuine Mercury Marine replacement gasket
- For the item 13 position in the referenced turbocharger assembly
- Part 805842 at item 14 is a different gasket
When to Replace
Replace the gasket if the joint is opened for turbocharger service or if the existing gasket is crushed, torn, or shows signs of leakage.
Installation Notes
Remove old gasket material and inspect the mating surfaces. Follow the MerCruiser service procedure for reassembly, and check whether the separate 805842 gasket at item 14 also needs replacement.
Technical FAQ
Is 805841 the same as 805842? No. The diagram shows 805841 at item 13 and a different gasket, 805842, at item 14.
How do I confirm fitment? Match the engine model and serial number, then confirm item 13 in the Turbocharger and Air Cleaner diagram.
Parts Desk Insights
Best use: Replacing the gasket at turbocharger diagram position 13 during service.
Common mistake to avoid: Confusing this part with neighbouring gasket 805842 at item 14.
Sizing and fitment: Supplied individually. Confirm the MerCruiser 7.3L NAV 444 application, serial number 0F060000 and up, and diagram position 13 before ordering.
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
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.