Mercury MerCruiser Quicksilver Carrier Assembly 66081A2
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Mercury MerCruiser / Quicksilver Carrier Assembly – 66081A2
Restore proper drivetrain sealing and alignment with the genuine Mercury Marine / Quicksilver 66081A2 Carrier Assembly. This OEM U-joint / yoke seal carrier assembly is installed in the driveshaft housing of MerCruiser sterndrive systems, supporting seals and helping protect internal components from water intrusion.
Manufactured to Mercury Marine’s original equipment specifications, the carrier assembly maintains proper sealing around the driveshaft area and supports the oil seal components that protect the sterndrive gear housing.
Key Features
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Genuine Mercury / Quicksilver OEM carrier assembly
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Supports U-joint / driveshaft oil seal components
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Helps prevent water intrusion into the sterndrive housing
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Maintains proper driveline alignment and sealing
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Designed for MerCruiser sterndrive drive-shaft housings
Replaces / Cross Reference
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Mercury 66081A2
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Mercury 8M0171103 (updated part number)
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Sierra 18-0577
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Mallory 9-78100
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GLM 28370
Compatible Mercury MerCruiser Drives
Commonly used on MerCruiser sterndrive systems, including:
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MC-1 drives
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R / MR sterndrives
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Alpha One sterndrives
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Alpha One Gen II sterndrives
These drives were installed on many MerCruiser V6 and V8 engines from the 1960s through modern Alpha One Gen II systems, depending on serial number range.
Function in the Sterndrive
The carrier assembly sits in the driveshaft housing and holds the oil seal and bearing support components that protect the sterndrive from water entry while maintaining proper alignment of the driveline.
Important Compatibility Note
Sterndrive components vary by drive model, production year, and serial number range. Always verify compatibility using the engine or sterndrive serial number before ordering to ensure the correct replacement part.
Shipping: Ships same or next day for fast Canada wide shipping.
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.