1667-9010-07 1991 & UP Mercury 20" Lower Unit 50 55 60 HP BIGFOOT 2.33:1 1 YEAR WTY

This lower unit has a 2.33 to 1 ratio. As seen in the pictures, this lower unit does come with the zinc anode but not the trim tab. This does not come with the propeller or the propeller hardware.  This unit shifts and spins smoothly.  Driveshaft splines have slight wear, and the prop shaft is straight.  The gears and clutch are in good shape with slight wear on the clutch.  This unit has been fully resealed, pressure checked, and a new impeller installed.  There are some scuffs & scratches in the paint, but nothing that will affect the overall performance as it is purely cosmetic. The skeg is straight.  Please note that we do not ship our lower units with oil. Upon receipt of the unit, this will have to be added before use. This will make a great replacement for your motor! Purchase with confidence!

Driveshaft measures -19 7/8 " from top of water pump housing to top of driveshaft
Driveshaft spline count - 11
Prop shaft spline count - 15

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!

Please note that we will not accept returns for this item. Please be absolutely sure this is the correct one for your motor prior to purchasing.

Location: Southcentral Outboards, Altamont, Illinois

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!