Mercury 1980-97 Long Lower Unit 35 40 45 50 60 70 HP 2 3 4 Cylinder 1 YEAR WTY!

This lower unit was removed from a freshwater engine and is in good condition. There are some cosmetic flaws in the paint, such as scuffs and scratches, but this will not affect anything. The intake screens on this lower unit are in good condition with no signs of cracking. All of the splines are in great condition and are not twisted or damaged. As seen in the pictures there is some corrosion on the housing, but this will not hurt the performance. This lower unit does not come with the trim tab, propeller, or the propeller hardware. Please remember to add oil before use. There is nothing stopping this from making a great replacement for your motor!

Driveshaft measures - 21-3/4" from the top of the water pump to the end of the pin
Driveshaft spline count - 11
Prop shaft spline count - 13

General Information

• Freshwater condition
• Opened & Inspected
• Professionally Cleaned
• New Impeller
• Pressure checked to 12 PSI minimum
• Fully Resealed
• Shafts checked for straightness

Criteria to validate your 1 year warranty:

• Core must be of equal or greater value
• Cannot be locked up - driveshaft must spin
• Up to 30 days from the date of purchase to send in your core
• Covers mechanical aspects ONLY
• Warranty begins from date of purchase

You will receive two copies of the terms and conditions for the lower unit one year warranty. One copy MUST be signed and returned with your core. Without a returned signed copy, the one year warranty will not be valid. 

Upon receipt of your core, we will inspect the unit to determine if it meets the criteria to validate the 1 year warranty. We reserve the right to accept or reject any core at our discretion. If you have any questions or concerns, please do not hesitate to contact us and we would be happy to help!

35 HP 1984-1989
40 (2 Cylinder) HP 1980-1983
45 (4 Cylinder) HP 1984-1989
50/60/70 HP 1980-1990
40 (4 Cylinder) HP 1989-1997

Please note that this lower unit will NOT fit the following below.
30/40 (2 Cylinder) 1991 & UP

We have provided this cross-reference with the resources we have available in regards to fitment. This most likely will not fit every model for the years and horsepowers we have listed. We urge you to make sure this is the exact item you need by matching the part number to what is required for your motor. If you need help doing so, please contact us prior to purchasing and we would be happy to help!