Mercury Quicksilver OEM Seal 34217
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Mercury Quicksilver OEM Seal 34217
Part Number: 34217
Brand: Mercury / Quicksilver
Product Type: OEM Seal
Catalog Notation: @8 (Mercury catalog indicates 8 seals used at this diagram position)
Approximate Weight: 10 g
What This Part Is
The 34217 is a genuine Mercury / Quicksilver OEM seal used in selected Mercury Marine and MerCruiser assemblies. The @8 notation in Mercury parts catalogs indicates that 8 seals are required at this position within the assembly. Confirm the exact engine model, serial number, and diagram position before ordering to ensure the correct seal specification and quantity for your application.
Compatible Applications
Confirm your engine model, serial number, and the applicable Mercury parts diagram before ordering. This seal may appear in multiple Mercury outboard and MerCruiser assembly contexts.
Serial Number Notice
Mercury seal specifications and quantities can vary by engine family, model year, and production serial range. Always confirm 34217 against the exact diagram position and engine serial number before ordering. Pay particular attention to the required quantity — the @8 notation indicates 8 seals per assembly at this location.
When to Replace
- Seal is hardened, compressed, cut, or distorted on inspection
- Leakage is present at the sealing location
- Seal was disturbed or removed during disassembly
- Assembly is undergoing a rebuild or major service
Do not reuse a seal that has been removed from service — a seal that appears intact on the bench often fails to seal reliably once back under pressure and operating temperature.
Installation Notes
- Clean the sealing surface and seat before installation
- Confirm the exact position, orientation, and quantity (8 per assembly at this diagram position) from the applicable Mercury service diagram before installing
- Follow the Mercury service manual procedure for the specific engine or drive assembly
- Inspect adjacent seals and gaskets while the assembly is apart and replace as needed
Part Number Cross-Reference
- OEM Part Number: 34217
Parts Desk Insights
Best use case: Order 34217 when rebuilding or servicing a Mercury or MerCruiser assembly where this seal is confirmed by the parts diagram. Because the catalog position calls for 8 seals, always order the full quantity required for the assembly — partial replacement of a seal set in a high-heat or high-pressure application is not recommended.
Common issues: The most common mistake with catalog seals like 34217 is ordering the wrong quantity. The @8 notation means the full assembly requires 8 of this seal — ordering only 1 or 2 creates a situation where the job cannot be completed correctly. Confirm the total quantity needed from the diagram before ordering. Also confirm the diagram position carefully — visually similar seals at adjacent positions in the same assembly are often different part numbers.
Shipping information
In-stock and OEM parts: ship same or next business day.
Available items are ready for pickup or shipping between one and three 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.