Mercury Mariner 1968-1978 Inline 4 Lower Unit 20" 65 80 85 HP 6 MONTH WARRANTY

This lower unit is in excellent condition. We took the time to professionally clean and inspect this item to give you confidence in your purchase. From the top of the water pump to the end, the driveshaft measures approximately 20-3/4" long. All of the splines are in great shape and the skeg is not cracked or broken. It has 8/15 splines. Purchase with confidence!

General Information

• Freshwater condition
• Pressure checked to 12 PSI minimum
• New impeller
• No metal in oil
• Shafts checked for straightness
• Shifts and spins smoothly
• 6 Month mechanical warranty
• Will need to add oil before use

**Due to shipping restrictions, lower unit are shipped empty. Every lower unit requires new oil to be installed when you receive it.

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.

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!