1 YEAR WTY! Mercury 1980-1997 20" Lower Unit 35 40 45 50 60 70 HP 2 3 4 Cylinder

This specific lower unit is in good condition. We have professionally inspected this unit to guarantee it to be in good, working condition. As pictured, the skeg is rough around the edges but not enough to affect performance in the least. The paint is in overall good shape with only minor scuffs and scratches. The intake screens are in perfect shape and are not broken or cracked. This unit does have a 2.0 to 1 gear ratio. Please note that this does come with the trim tab and the propeller hardware but NOT the propeller. Given our unprecedented 1 year warranty on every lower unit, you will never find a better deal on an OEM lower unit. Please add oil before installation. Purchase with confidence!  

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!