Sierra Hi-Performance Gear Lube & Pump Kit – 1 Qt
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You have 30 days to request a return. All sale items are final sale.
Sierra Hi-Performance Gear Lube & Pump Kit – 1 Qt
Keep your lower unit running cool and protected with Sierra's Hi-Performance Gear Lube. This synthetic-blend formula is engineered specifically for the demanding conditions inside outboard and sterndrive (I/O) lower units — where high loads, water exposure, and extreme pressure are the norm.
This complete kit takes the guesswork out of gear oil changes. Everything you need arrives together: a quart of Hi-Performance Gear Lube, a pump, and the adapters to fit your lower unit drain and fill ports.
What's Included
- 1 quart of Sierra Hi-Performance Gear Lube (synthetic blend)
- Gear lube pump
- Adapters for lower unit drain/fill ports
Key Benefits
- Formulated for high-performance and high-load outboard and I/O lower units
- Reduces friction to protect gears, bearings, and internal components
- Synthetic-blend marine formulation resists water contamination and breakdown
- Meets or exceeds OEM gear lubricant specifications
Best For
- Routine lower unit gear oil changes on outboard motors and sterndrives
- Seasonal maintenance before storage or spring launch
- Boaters who want a complete, ready-to-use kit without sourcing parts separately
Related Products
- Sierra Premium Gear Lube – 1 Qt
- Sierra Premium Gear Lube – 10 oz
- Sierra Premium Gear Lube – 5 Gal
- Sierra Gear Lube Pump
Parts Desk Insights
This kit is our go-to recommendation for boaters doing their own lower unit service. The included pump and adapters make the job clean and straightforward — no improvising with a squeeze bottle. Best used during seasonal maintenance: drain the old oil, inspect for milky discolouration (a sign of water intrusion), and refill from the bottom up. If you're servicing a high-hour motor or one that's been sitting, this is the right starting point before considering a full lower unit inspection.
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.