USP Marine Newsletter

Get the latest Sales, Product Releases and more with our Newsletter!

Curated By Our Captains
We test/know our products
Low Price Guarantee
We will beat all competitors
Contact a Liqui Moly Specialist
Monday - Friday | 8:30AM to 6PM EST

Liqui Moly Lower Unit Gear Oil Hand Pump

Liqui Moly


  • $22.99 USD
    Unit price per 
In Stock
Out of Stock


Features a double action pump for efficient filling of lower units. Ordinary pumps only inflate on the downstroke, but the Liqui Moly Lower Unit Gear Oil Hand Pump creates a continuous stream of air on both the down and the up-stroke. This can also be used for filling transmissions, lawnmowers, emergency power units, riding mowers, snow blowers or motorcycle transmissions. 

Applicable for all Mercury, Suzuki, Evinrude, Yamaha lower unit applications.

  • Used primarily as a outboard or stern drive gear lube pump
  • Fits any outboard or stern drive with a 3/8"‑16 drain plug
  • Includes adapter for applications with M8x1.25 drain plug

Specifically designed/engineered for all 1 liters (0.26 gal.) containers from LIQUI MOLY - for 500 ml and 5 liters (1.32 gal.) with SK 38 thread.


  1. Cut hose A to the right length at the straight end. The notched end should touch the bottom of the container
  2. Take the short straight hose and insert the end you have just cut into the pump from below
  3. Connect hose B to the hand pump and secure with the clip
  4. Insert the yellow end piece (inch thread) into the hose
  5. The end piece can be adjusted to metric threads using the adapter
  6. Screw the pump onto the container and open the pump lever. Hold the roughly corrugated part and turn the pump lever counterclockwise until it flips up
  7. The pump is now ready to use.

Customer Reviews

We Also Recommend