Mercury Quicksilver E-Ring Retaining Clip 87843 | OEM Hardware 53-87843
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Mercury Quicksilver E-Ring Retaining Clip 87843
Part Number: 87843 | Also listed as: 53-87843
Brand: Mercury / Quicksilver
Official Product Type: E-Ring / External Retaining Clip — OEM Hardware
System: General Assembly Hardware (shafts, pins, linkage, and fuel-system assemblies)
A genuine OEM Mercury E-ring (external retaining ring) used to secure shafts, pins, and related components in their correct position within Mercury and MerCruiser assemblies. E-rings are small but critical — they prevent axial movement of the retained component and must be replaced with the exact OEM specification to maintain proper assembly integrity.
Compatible Applications
- Selected Mercury outboard assemblies — including Verado and Mercury Racing fuel-system related components
- Selected MerCruiser sterndrive assemblies
- Confirm fitment by locating part number 87843 / 53-87843 in the Mercury parts diagram for your specific engine, model, and serial number
E-rings are position- and dimension-specific. Always verify this part number against the Mercury parts diagram for your assembly before ordering. Do not substitute based on visual similarity alone.
Part Details
- Type: E-ring (external retaining ring / snap ring)
- Material: Steel (OEM specification)
- Function: Retains shafts, pins, or linkage components against axial movement
- Diagram position: Confirm location in the Mercury parts diagram for the specific assembly being serviced
When to Replace
- E-ring is bent, deformed, or no longer snaps securely into its groove
- Corrosion or pitting has weakened the clip
- Lost during disassembly — always replace rather than reuse
- Called out in the Mercury service manual as a replace-on-removal item
Installation Notes
- Use the correct snap-ring pliers or E-ring installation tool — do not use screwdrivers or improvised tools that can distort the ring.
- Ensure the ring seats fully and evenly in its groove before reassembling adjacent components.
- Inspect the groove for corrosion or damage before installing the new ring.
- Always replace with the exact OEM part number — E-rings that look similar can differ in diameter, thickness, and groove fit.
Parts Desk Insights
Best use case: This is the right part when 87843 / 53-87843 appears in the Mercury parts diagram for the assembly being serviced. It is commonly needed during fuel-system, linkage, or shaft-related service on Verado and MerCruiser applications where this specific clip is called out. Ordering by diagram part number is the safest approach.
Common mistakes: The most frequent error is assuming any E-ring of similar size will work. E-rings are dimension-critical — a ring that is even slightly too large or too small will not retain properly and can cause component failure. Always order by the exact Mercury part number shown in the diagram, not by measurement alone. Also note that E-rings are inexpensive enough that they should always be replaced rather than reused during any service that requires removal.
Related Parts
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.
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