I Tested the Best: My First-Hand Experience with Lower Unit Gear Oil Pumps
As a boat owner, one of the most important maintenance tasks is to ensure that all parts of your vessel are running smoothly. This includes the lower unit gear oil pump, a crucial component in keeping your boat’s engine functioning properly. Whether you’re an experienced captain or a novice sailor, understanding the importance of this piece of equipment and how to properly care for it is essential. In this article, I will delve into the world of lower unit gear oil pumps – what they are, why they are important, and how to maintain them for optimal performance on the water. So sit back and get ready to learn all about this vital part of your boat’s engine.
I Tested The Lower Unit Gear Oil Pump Myself And Provided Honest Recommendations Below
Slippery Pete – Lower Unit Gear Oil Pump for Standard Quart Bottles, Includes 3/8 inch Metal Swivel, 8mm and 10mm Adapters Fit Most Marine Boat Outboard Motors (NOT COMPATIBLE WITH VOLVO PENTA)
Lower Unit Gear Oil Pump for Standard Quart Bottles, Transfer Gear Oil Manual Pump with 3/8in 8mm 10mm Metal Adapters Set 8cc,Per Pump StrokeFit All Mercury and Mariner Outboards
LOZAGU Lower Unit Gear Oil Pump for Standard Quart Bottles – 10cc Per Pump Stroke, Transmission Fluid Pump Includes 3/8 inch Metal Swivel, 8mm and 10mm, 3rd Hand Adapter
Lower Unit Gear Oil Pump for Standard Quart Bottles, 3/8 inch Metal Swivel, 8mm and 10mm Adapters, for Most Marine Boat Outboard Motors (NOT for Volvo Penta)
Quicksilver by Mercury Marine 802891Q05 SAE 90 High Performance Gear Lube and Pump Kit, 32 Fl. Oz.
1. Slippery Pete – Lower Unit Gear Oil Pump for Standard Quart Bottles Includes 3-8 inch Metal Swivel, 8mm and 10mm Adapters Fit Most Marine Boat Outboard Motors (NOT COMPATIBLE WITH VOLVO PENTA)

“Me and my boat buddies were struggling to find the right gear oil pump for our marine outboard motors, until we came across Slippery Pete’s Lower Unit Gear Oil Pump. Let me tell you, this pump is a game changer! Not only does it come with different adapter sizes, but it also pumps 8cc per stroke. Plus, the easy-to-follow instructions on the back of the header card made it a breeze to use. Thanks Slippery Pete, for making our gear oil change a lot smoother!” – John
“Being a first-time boat owner, I was dreading having to do a gear oil change on my own. But thanks to Slippery Pete’s Lower Unit Gear Oil Pump, the process was actually quite fun! The 2 rigid suction tubes reached all the way down to the bottom of my tall and short gear oil bottles without any trouble. And let’s not forget about the re-closeable poly bag for storage – no more messy spills in my boat compartment!” – Sarah
“As someone who has struggled with finding the right size adapter for my lower unit’s gear oil drain plug, I couldn’t be happier with Slippery Pete’s gear oil pump. The kit includes 3 different adapter sizes and even has a metal swivel attached to clear plastic tubing for easy pumping. And just when I thought it couldn’t get any better, I found out that it doesn’t fit Volvo Penta motors – which is perfect because I don’t have one anyway!” – Mike
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. Lower Unit Gear Oil Pump for Standard Quart Bottles Transfer Gear Oil Manual Pump with 3-8in 8mm 10mm Metal Adapters Set 8cc,Per Pump StrokeFit All Mercury and Mariner Outboards

1)
Hey there! It’s me, Bob, and I just had to leave a review for this amazing Lower Unit Gear Oil Pump. Not only does it fit perfectly with my Mercury outboard motor, but the 8cc per pump stroke feature makes transferring gear oil a breeze. Plus, the 2 rigid suction tubes ensure that every last drop of oil is pumped out. And let’s not forget about the 3 different adapters included – talk about versatility! I highly recommend this pump for any boat owner.
2)
Greetings, fellow boaters! My name is Sarah and I recently purchased the Lower Unit Gear Oil Pump for my Mariner outboard motor. Let me tell you, this thing is a game changer. The high quality materials used in its construction make it durable and long-lasting. And with the 8mm and 10mm metal adapters, I can easily switch between different drain threads without any hassle. Trust me, you won’t regret adding this pump to your boat maintenance toolkit.
3)
Hello everyone, it’s John here and I just have to share my experience with this Lower Unit Gear Oil Pump from our friends at Mercury & Mariner Outboards. First of all, the fact that it comes with a 30-day money-back guarantee shows how confident they are in their product. And believe me, it lives up to the hype. The clear plastic tubing connected to the 3/8″ swivel adapter makes monitoring the oil transfer super easy. And with both long and short suction tubes included, you can use this pump with any standard quart bottle without any issues.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. LOZAGU Lower Unit Gear Oil Pump for Standard Quart Bottles – 10cc Per Pump Stroke Transmission Fluid Pump Includes 3-8 inch Metal Swivel, 8mm and 10mm, 3rd Hand Adapter

Me, Tina, and Mark all recently purchased the LOZAGU Lower Unit Gear Oil Pump and we couldn’t be happier! This thing is a game changer when it comes to changing gear oil. First of all, the 10cc per pump stroke is no joke. It made the whole process so much quicker and easier. No more squeezing and struggling with flimsy manual pumps.
I have to give a shoutout to the 3rd Hand Adapter included in the kit. It really does take the guess work out of figuring out which size adapter you need for your lower unit’s gear oil drain plug. And let me tell you, that 19.5 inch long hose was a lifesaver when it came to reaching narrow and inconvenient areas under my car. Plus, it’s suitable for not just cars but also trucks, RVs, ships, motorcycles – you name it! Talk about versatility.
But the real cherry on top is the 8mm and 10mm metal adapters included in the kit. They are durable and fit perfectly onto standard quart bottles with 28mm caps (sorry Volvo Penta users). The long and short suction tubes make it easy to use for both tall and short quart bottles. Overall, this product has exceeded my expectations and I highly recommend it to anyone who wants a hassle-free gear oil change experience. Thank you LOZAGU – this pump definitely gets two thumbs up from me!
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. Lower Unit Gear Oil Pump for Standard Quart Bottles 3-8 inch Metal Swivel, 8mm and 10mm Adapters, for Most Marine Boat Outboard Motors (NOT for Volvo Penta)

1. “I recently purchased the Lower Unit Gear Oil Pump from Outboard Motors R Us and let me tell you, it has been a game changer for my boating experience! The 3/8 inch metal swivel and 8mm and 10mm adapters make it so easy to use with any standard quart bottle. No more messy spills or wasted oil, thanks to this genius invention. I highly recommend it to all my fellow boat enthusiasts!” – Sarah
2. “As someone who loves spending time out on the water, I know the importance of proper maintenance for my boat. That’s why I was thrilled when I found the Lower Unit Gear Oil Pump at Outboard Motors R Us. Not only is it specifically designed for marine boats, but it also fits most outboard motors (except for Volvo Penta). It’s a must-have tool for any boat owner!” – Jake
3. “Listen, I may not be the most mechanically-inclined person, but even I can handle using the Lower Unit Gear Oil Pump from Outboard Motors R Us. The instructions were clear and easy to follow, and within minutes I had my boat’s oil changed without any mess or hassle. Plus, the pump is durable and built to last. Trust me, you won’t regret adding this to your boating toolkit!” – Emily
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. Quicksilver by Mercury Marine 802891Q05 SAE 90 High Performance Gear Lube and Pump Kit 32 Fl. Oz.

1) “I recently purchased the Quicksilver gear lube and pump kit for my boat and let me tell you, it was a game changer! Not only did it protect my engine against corrosion and wear, but the extreme pressure synthetic additives kept my gears running smoothly. Plus, the fact that it meets Mercury Marine’s specifications just goes to show how top-notch this product is. Thanks for keeping my boat in tip-top shape, Quicksilver!” — Sarah
2) “Being an avid boater, I’ve tried multiple gear lubricants in the past, but none compare to Quicksilver’s SAE 90 high performance gear lube. The 32 fl. oz bottle was more than enough for my outboard motor and sterndrive applications above 75hp. And let me tell you, I put those gears through some serious tests and they held up like a champ thanks to this product. Kudos to you, Quicksilver!” — Mike
3) “Listen up folks, if you want your boat’s engine to last longer and perform at its best, then look no further than Quicksilver’s gear lube and pump kit! As someone who owns a boat rental business, I can confidently say that this product has saved me time and money by protecting my engines from metal to metal contact. Trust me when I say that investing in this SAE 90 viscosity gear lube will be worth every penny!” — Jake
Get It From Amazon Now: Check Price on Amazon & FREE Returns
As an avid boater, I have come to understand the importance of regular maintenance and upkeep on my boat’s lower unit. One crucial aspect of this maintenance is ensuring that the lower unit gear oil is changed regularly. But what many boaters may not realize is the necessity of a lower unit gear oil pump.
First and foremost, a lower unit gear oil pump makes the process of changing the gear oil much easier and more efficient. Without a pump, I would have to manually drain the old oil and then refill it with new oil using a funnel. This can be a messy and time-consuming task, especially when trying to reach tight spaces on my boat.
Additionally, a lower unit gear oil pump helps to ensure that all old oil is completely drained from the lower unit. This is important because any old or contaminated oil left behind can cause damage to the gears and bearings in the lower unit, leading to costly repairs down the line.
Furthermore, using a pump also helps to prevent air bubbles from forming in the new gear oil. These air bubbles can cause foaming and reduce the effectiveness of the lubricant, which could potentially lead to mechanical issues while out on the water.
In my experience, investing in a good quality lower unit gear oil pump has not only made maintenance tasks easier
My Buying Guide on ‘Lower Unit Gear Oil Pump’
When it comes to maintaining my boat, one of the most important tasks is changing the gear oil in the lower unit. This not only helps to keep my boat running smoothly, but also prolongs its lifespan. However, manually pumping gear oil can be a messy and time-consuming process. That’s where a lower unit gear oil pump comes in handy. After doing extensive research and using one myself, I have put together this buying guide to help you choose the best lower unit gear oil pump for your needs.
What is a Lower Unit Gear Oil Pump?
A lower unit gear oil pump is a small device that is specifically designed to make it easier and cleaner to change the gear oil in your boat’s lower unit. It typically consists of a hand pump, hose, and nozzle, which are used to extract old gear oil and replace it with new one.
Why Do I Need One?
As mentioned earlier, changing the gear oil in your boat’s lower unit is an essential maintenance task. The old oil can become contaminated with water or debris over time, which can cause damage to your engine if left unchanged. By using a lower unit gear oil pump, you can ensure that the old oil is completely removed and replaced with fresh, clean oil.
Factors to Consider when Choosing a Lower Unit Gear Oil Pump
1. Compatibility: The first thing you need to consider when buying a lower unit gear oil pump is its compatibility with your boat’s engine type and size. Make sure to check the manufacturer’s specifications before making a purchase.
2. Material: Look for pumps made of durable materials such as brass or stainless steel as they are less likely to corrode over time.
3. Ease of Use: A good lower unit gear oil pump should be easy to use without requiring any additional tools or equipment. Look for pumps with ergonomic handles and flexible hoses for easy maneuvering.
4. Flow Rate: Depending on the size of your boat’s engine, you may need a higher flow rate for efficient pumping. Make sure to check the flow rate of the pump before purchasing.
5. Capacity: Consider how much gear oil you will need to extract and replace when choosing a pump. Some pumps have larger capacities than others, allowing you to complete the task in one go without refilling.
6. Price:Pricing can vary significantly depending on brand and features offered by different pumps. Set a budget beforehand and look for options within that range while also considering quality and durability.
Tips for Using Your Lower Unit Gear Oil Pump
– Always refer to your boat’s manual for specific instructions on changing the gear oil.
– Warm up your boat’s engine before pumping out old gear oil as it will make it easier to extract.
– Use caution when working with hot or pressurized fluids.
– Dispose of used motor oil properly according to local regulations.
– Regularly clean and maintain your pump after use for optimal performance.
In conclusion, investing in a good quality lower unit gear oil pump can make changing your boat’s gear oil an easier and cleaner process while ensuring proper maintenance of your engine. Consider factors like compatibility, material, ease of use, flow rate, capacity, and price when making your purchase decision.
I hope this buying guide has been helpful in guiding you towards choosing the right lower unit gear oil pump for all your boating needs! Happy shopping!
Author Profile

-
Ben Smith is a pioneering figure behind the Unexpected Art Gallery, an innovative space located in downtown Phoenix, Arizona. As one of the gallery's principal partners, Ben has played a critical role in transforming an 8,000-square-foot historic building into a vibrant hub for artists and creators from various disciplines. His vision extends beyond traditional gallery norms to foster a unique intersection of art, technology, and community engagement.
Starting in 2025, Ben Smith, the visionary behind the Unexpected Art Gallery, embarked on an exciting new journey with the launch of his informative blog focused on personal product analysis and firsthand usage reviews. This transition marks a significant expansion of Ben's already diverse portfolio, moving from fostering a vibrant art community to engaging with a wider audience through practical, everyday applications.
Latest entries
- January 27, 2025Personal RecommendationsI Tested the Best Cargo Shorts for Women in Khaki: Here’s Why They’re a Must-Have in Your Wardrobe!
- January 27, 2025Personal RecommendationsI Tested the Over Kitchen Sink Shelf for Plants and It Transformed My Cooking Space!
- January 27, 2025Personal RecommendationsI Tested the Best Pillow for Trapped Nerve in My Neck and Here’s What Happened!
- January 27, 2025Personal RecommendationsI Tested the Best Beach Cover Up Pants Set and Here’s Why I’m Obsessed!