Sierra Lower Unit Seal Kit for Johnson/Evinrude Outboards (47-2623)
No restocking fees on eligible returns
You have 30 days to request a return. All sale items are final sale.
Customer pays return postage. Return postage is reimbursed if we made a mistake.
The Sierra 47-2623 Lower Unit Seal Kit is a complete replacement seal kit engineered for Johnson and Evinrude outboard lower units. This kit provides all the seals required to properly reseal the gearcase during service or rebuild, protecting gear oil from water contamination and preventing leaks at the lower unit housing.
Key Features
- Complete lower unit seal kit — all seals included for a full gearcase reseal
- Designed for Johnson and Evinrude outboard applications
- Sierra marine-grade materials rated for saltwater and freshwater environments
- Restores proper sealing at the prop shaft, driveshaft, and gearcase housing interfaces
- SKU: 47-2623
Best Use Case
This kit is the right choice when servicing or rebuilding the lower unit on a Johnson or Evinrude outboard — particularly when a gear oil change reveals water contamination (milky oil), or when prop shaft seals show signs of wear or damage. Best practice is to replace all lower unit seals as a complete set any time the gearcase is opened, avoiding repeat disassembly from a single missed seal.
Parts Desk Insights
Fitment varies by engine displacement, horsepower rating, and model year — always verify against the Sierra application guide before ordering. If you need a different Johnson/Evinrude lower unit seal configuration, also see the Sierra 47-2660 Johnson/Evinrude Lower Unit Seal Kit. For other outboard brands, see the Sierra 47-2598 Lower Unit Seal Kit, Mercury/Mariner Lower Unit Seal Kit (47-2655), or Sierra 47-2652 MerCruiser Lower Unit Seal Kit. After resealing, refill with a quality gear lube such as Star Brite High-Vis 80W90 Lower Unit Gear Lube.
Shipping information
Free standard shipping in Canada on eligible orders over $150 CAD after discounts and before taxes, up to 15 kg. Freight, oversized, remote-area and express exclusions apply. See our shipping policy.
In-stock at Marisol: usually ready for pickup the same day. Supplier-stock items: usually ready for pickup within 24 hours. Wait for your pickup-ready confirmation.
In-stock items receive priority shipping processing. Supplier-stock items generally ship within 1–3 business days. Special-order timing varies. Carrier delivery time is additional.
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.
No restocking fee applies to eligible returns. Customers arrange and pay return postage unless we made a mistake, in which case we reimburse return postage. See the return policy for eligibility and exclusions, or contact us.