Mercury 2006 & UP Lower Unit 40 50 60 HP 4S BIGFOOT 2.33:1 EFI 20" 6 MONTH WTY

This shifts and spins smoothly with a new impeller installed. This lower unit has a 2.33 to 1 ratio. As seen in the pictures, this lower unit does come with the zinc anode and trim tab but does not come with the propeller or the propeller hardware. The housing is a little banged up but this is purely cosmetic, see pictures.  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 come exactly as pictured and make a great replacement for your motor! Purchase with confidence!

Driveshaft measures - 20-7/8" from top of water pump housing to top of driveshaft
Shift Rod measures - 1-1/2"
Driveshaft spline count - 20
Prop shaft spline count - 15

General Information

• Freshwater condition
• New Impeller
• Pressure checked to 12 PSI minimum
• Shafts checked for straightness
• 6 Month Warranty

To obtain the 6 month warranty, you MUST send in your core lower unit. We will even pay to have your core shipped to us! Below is the criteria required to validate the warranty:

• Core must be of rebuildable quality
• 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
• Core must be complete and cannot be missing parts

You will receive two copies of the terms and conditions for the lower unit 6 month warranty. One copy MUST be signed and returned with your core. Without a returned signed copy, the 6 month 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 6 month warranty. We reserve the right to accept or reject any core at our discretion.

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!