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

 
$650.00
International Shipping Quote
  • Brand: Mercury
  • Size: 35 40 45 50 60 70 HP
  • Color: Black
  • Style: 2, 3, & 4 Cylinder - 2-Stroke - Long
  • Condition: Seller Refurbished
  • Notes: Fully Resealed & New Impeller!
  • SKU: 36264 LRU
  • Manufacturer Part Number: 1643-9539A5 7406A35 6459A11 7406A15
  • Country of Manufacture: United States
  • Motor & Engine Type: Mercury
  • Part Type: Motors, Engines & Components
  • Other Part Number: N/A
  • Surface Finish: Painted, Black
  • Warranty: 30 days
  • Inventory Number: 36264 LRU
  • Website Category: Lower Units
  • Website Sub Category: Complete Lower Units
  • UPC: N/A
  • Shipping: $50.00
Part Number C# 1643-9539
Additional Info

This specific lower unit is in great condition. We have professionally inspected this unit to guarantee it to be in great, working condition. The paint on skeg is worn some, but this is entirely cosmetic. 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 not come with the trim tab or 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!
Fits:
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!