Mercury MerCruiser Block-Off Plate 8M0134820
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Mercury / MerCruiser Quicksilver Block-Off Plate ā 8M0134820
The Mercury Quicksilver 8M0134820 Block-Off Plate is a genuine OEM engine block-off plate used on select Mercury and MerCruiser marine engine systems. It seals or covers an unused port or opening in the engine assembly to prevent leaks and maintain proper system operation.
Key Specifications
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Part Number: 8M0134820
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Component Type: Engine block-off plate
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OEM Brand: Mercury Marine / Quicksilver
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UPC: 745061039834
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Typical Dimensions: approx. 3.25 in Ć 2.0 in Ć 0.25 in
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Weight: approx. 0.10 lb
Compatible Engines / Applications
Used on various Mercury and MerCruiser engine configurations, typically where a port, passage, or accessory mounting location must be sealed.
Applications may include:
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MerCruiser sterndrive engines
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MerCruiser inboard gasoline engines
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Certain Mercury marine engine systems
Exact usage depends on the engine model and configuration.
Function
The block-off plate is installed over an unused engine port or mounting location, creating a sealed barrier that prevents fluid leaks and protects internal engine components.
This helps ensure:
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Proper engine sealing
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Protection against oil or coolant leaks
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Secure closure of unused engine openings
ā ļø Fitment Tip:
Always confirm compatibility using the engine model and serial number in the Mercury parts catalog, as block-off plates may vary depending on the engine family and system configuration.
OEM parts ship same or next day for fast Canada wide shipping.
Technical Specifications:
- Type: Block-off plate
- Compatible with: Mercury MerCruiser marine engines
- Part Number: 8M0134820
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3ā4 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 ā 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 ā 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.