Mercury MerCruiser Quicksilver Plate 55730
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Mercury Quicksilver Plate – Part No. 55730
This is a genuine OEM Mercury Marine / Quicksilver plate used in MerCruiser engine assemblies. Mercury catalog plates in this part number range are typically structural cover plates, throttle or choke plates, or sealing plates used at specific positions within the engine or fuel system. At this price point, this is a precision-machined or formed component rather than a simple label or decal. Always confirm the correct diagram position using your engine model and serial number before ordering.
Part Details
- Part Number: 55730
- Brand: Mercury Marine / Quicksilver
- Official Product Type: Plate
- System: Engine assembly — confirm specific position via parts diagram
- Condition: New OEM
Compatible Applications
- MerCruiser engine assemblies — specific position varies by model and serial number range
- Verify fitment using the Mercury parts diagram, engine model, and serial number before ordering
- Confirm the plate style (cover plate, throttle plate, sealing plate) matches the diagram position for your assembly
Installation Notes
- Clean all mating surfaces before installation
- Inspect adjacent components and seals for wear or damage before reinstalling the plate
- Follow Mercury service manual torque specifications for all associated fasteners
- Replace any gaskets or seals disturbed during removal
- Confirm correct orientation using the Mercury parts diagram before final installation
Service Interval
Replace whenever the plate is damaged, corroded, warped, or when the assembly is overhauled. Inspect during any service that requires access to the surrounding components.
Parts Desk Insights
Best use case: Direct replacement when the original plate is damaged, corroded, or missing, or as part of a planned overhaul where the diagram calls for this part number. Ordering by the exact diagram part number is the most reliable approach — Mercury uses several plate components across different assemblies that share similar descriptions but are not interchangeable.
Common mistakes: Ordering based on the generic description “plate” without confirming the diagram position — this part number should be matched to a specific location in the Mercury parts diagram for your engine model and serial number. If you’re unsure of the application, pull the diagram page for your assembly and confirm the part number before ordering.
⚠️ Application data for this part is limited in the Mercury catalog. If you have the diagram reference or engine family for this plate, contact us and we can confirm fitment before you order.
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.