Mercury 1966-1978 New Old Stock Inline 4 Lower Unit 2.33 R 65 80 + HP 1 YR WTY

This is a brand new old stock unit with a 2.33 to 1 gear ratio. Never installed. New everything! Paint does have minor scratching from storage, but nothing that will affect performance. There is a very minor chip in the cavitation plate, again, this should not affect performance. This has 8 splines on the 20" driveshaft and 15 splines on the propshaft.

This will fit both Mercury and Mercury mariner (Gray) lower units in the year range below.

**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 1 year 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 1 year warranty. One copy MUST be signed and returned with your core. Without a returned signed copy, the 1 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.

We offer a 30 day return policy on this product so you can purchase it with confidence. If you have any issues with the product, please reach out to us and we would be happy to help resolve any issue that may occur. 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!