Sierra Tilt/Trim Hydraulic Reservoir – Mercury & MerCruiser | 47-6771
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You have 30 days to request a return. All sale items are final sale.
Sierra Tilt/Trim Hydraulic Reservoir – Mercury & MerCruiser | 47-6771
Replace a cracked, leaking, or damaged trim reservoir on your Mercury outboard or MerCruiser sterndrive with this Sierra direct-fit replacement. The reservoir holds the hydraulic fluid that powers the trim/tilt pump — when it cracks or loses its seal, the trim system loses pressure and the engine or drive won’t hold position. This Sierra unit is built to OEM specifications for a straightforward swap without modifications.
Compatible Applications
- Mercury outboard engines with Oildyne-style power trim systems
- MerCruiser sterndrive applications with compatible trim pump assemblies
- Refer to Sierra’s current application guide to confirm fitment for your specific engine model and year
Key Features
- Direct-fit replacement for OEM trim reservoir
- Built to OEM specifications for proper sealing and fluid capacity
- Restores hydraulic pressure to the trim/tilt system
- Lightweight construction for easy installation
Parts Desk Insights
A leaking or cracked trim reservoir is one of the more straightforward trim system repairs — if your trim works intermittently, won’t hold position, or you can see fluid loss around the reservoir, this is the right fix. Before ordering, confirm the reservoir is the source of the leak rather than the trim motor seals or pump body. After replacing the reservoir, refill with the correct hydraulic fluid — the Sierra Power Trim & Steering Fluid is the recommended fill. If the trim motor itself has failed, see the ARCO Mercury / MerCruiser Tilt & Trim Motor or the ARCO Replacement Trim Motor for complete motor replacement options.
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.