Mercury MerCruiser Sea Pump Bracket 8077491
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Mercury / MerCruiser Quicksilver Sea Pump Bracket — 8077491
The Mercury MerCruiser 8077491 is a genuine OEM sea water pump mounting bracket used on many MerCruiser sterndrive and inboard engines. The bracket secures the engine-driven seawater pump to the front of the engine and maintains proper alignment with the belt-driven pulley system.
Key Specifications
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Part Number: 8077491
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Superseded Number: 807749T
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Component Type: Sea water pump mounting bracket
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OEM Brand: Mercury Marine / Quicksilver
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Typical Price Range: ~$70–$80 OEM retail
Function
The sea pump bracket is part of the engine cooling system mounting hardware.
It performs several critical roles:
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Supports the seawater pump assembly
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Maintains correct belt and pulley alignment
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Keeps the pump securely mounted during engine vibration and operation
The seawater pump draws raw water from outside the boat and sends it through the engine’s cooling system. If the bracket becomes bent, cracked, or misaligned, it can cause belt wear, pump misalignment, or cooling system issues.
Compatible Engines
The 8077491 bracket is used on many MerCruiser GM-based engines, including:
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4.3L V6 (262 CID)
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5.0L V8 (305 CID)
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5.7L V8 (350 MAG / carb or EFI)
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MX 6.2L MPI
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Black Scorpion 350 / 377 engines
These engines typically appear on 1997–2002 MerCruiser Alpha and Bravo sterndrive systems, depending on serial number range.
Typical Installation Location
The bracket mounts on the front of the engine block and supports the engine-driven seawater pump assembly used on standard cooling systems.
⚠️ Fitment Tip:
Always confirm compatibility using the engine model and serial number. MerCruiser used several seawater pump configurations, and bracket designs may vary depending on cooling system type (standard vs closed cooling) and engine generation.
Shipping:
OEM parts ship same or next day for fast Canada wide shipping.
Technical Specifications:
- Type: Sea pump (raw water pump) mounting bracket
- Compatible with: Mercury MerCruiser marine engines
- Part Number: 8077491
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 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.