Mercury Mariner 1977 1978 1979 1980 - 1987 FULLY DRESSED Powerhead 18 20 25 HP

 
$550.00
International Shipping Quote
  • Brand: Mercury
  • Size: 18 20 25 HP
  • Style: Inline 4 - 2 stroke
  • Condition: Used
  • Notes: READY TO INSTALL
  • SKU: 54380 PWH
  • Manufacturer Part Number: 8978T2 8978A2 7484 859232T15 9533T38 9533T28
  • Country of Manufacture: United States
  • Motor & Engine Type: Mercury
  • Part Type: Motors, Engines & Components
  • Other Part Number: 86689A5 86689A4 42712A3 42712A2 42712A1 90906 7484
  • Inventory Number: 54380 PWH
  • Website Category: Powerhead
  • Website Sub Category: Complete Powerheads
  • UPC: N/A
  • Shipping: $50.00
  • Weight: 44.00 lbs
Part Number

 Crankshaft: 8978T2 8978A2 8586A2 8697A2 7317A3
 Carburetor: 7484
 Flywheel: 859232T15 859232T6 818354A2 8274A6 8274A3 7908A2
 Cylinder Block: 9533T38 9533T28 9533A28 9533A7 9077A4 8790A4 8501A2 8196A3 7899A2
 Starter Housing (manual): 86689A5 86689A4 42712A3 42712A2 42712A1 90906
 Starter (electric): 8M0033984 893889T 90983T1 90983A1

Additional Info
  • Freshwater 
  • 2 Cut wires 
  • Compression was 145 on both cylinders
  • Good Spark 
  • Scuffs and scrapes 
  Please verify fitment before ordering. If you order this incorrectly or change your mind within 45 days, you may return it with a 20% restocking fee and shipping.  You must contact us in order to facilitate that.  You cannot open a return on ebay in this case.

Location: Southcentral Outboards, Altamont, Illinois

Fits: Mariner 20 HP 1977 1984 - 1987
Mariner 25 HP 1985 1986 1987
Mercury 18 HP 1980 - 1985
Mercury 20 HP 1986 1987
Mercury 25 HP 1980 - 1987

Removed from a 1983 Mercury 25 HP 06402209 

Please verify fitment before ordering. 
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! 
 





Mercury Mariner 1977 1978 1979 1980 - 1987 FULLY DRESSED Powerhead 18 20 25 HP
Mercury Mariner 1977 1978 1979 1980 - 1987 FULLY DRESSED Powerhead 18 20 25 HPMercury Mariner 1977 1978 1979 1980 - 1987 FULLY DRESSED Powerhead 18 20 25 HPMercury Mariner 1977 1978 1979 1980 - 1987 FULLY DRESSED Powerhead 18 20 25 HPMercury Mariner 1977 1978 1979 1980 - 1987 FULLY DRESSED Powerhead 18 20 25 HPMercury Mariner 1977 1978 1979 1980 - 1987 FULLY DRESSED Powerhead 18 20 25 HPMercury Mariner 1977 1978 1979 1980 - 1987 FULLY DRESSED Powerhead 18 20 25 HPMercury Mariner 1977 1978 1979 1980 - 1987 FULLY DRESSED Powerhead 18 20 25 HPMercury Mariner 1977 1978 1979 1980 - 1987 FULLY DRESSED Powerhead 18 20 25 HPMercury Mariner 1977 1978 1979 1980 - 1987 FULLY DRESSED Powerhead 18 20 25 HPMercury Mariner 1977 1978 1979 1980 - 1987 FULLY DRESSED Powerhead 18 20 25 HP