(920) 662-7605

Used Outboard Parts & Fresh Water Sterndrive Parts

55278A3 Quicksilver Diaphragm Kit Mercury Mariner 35-70 Hp Outboard
55278A3 Quicksilver Diaphragm Kit Mercury Mariner 35-70 Hp Outboard55278A3 Quicksilver Diaphragm Kit Mercury Mariner 35-70 Hp Outboard55278A3 Quicksilver Diaphragm Kit Mercury Mariner 35-70 Hp Outboard55278A3 Quicksilver Diaphragm Kit Mercury Mariner 35-70 Hp Outboard55278A3 Quicksilver Diaphragm Kit Mercury Mariner 35-70 Hp Outboard
$3.90
We are not a Mercury Marine Parts Dealer. This part is from old stock. Boats.Partseller and Marine LLC will warranty this part for 30 days. Part number 55278A3.

Quicksilver Diaphragm Kit 

For the fuel pump on many various 35-70 HP Mercury Mariner outboard engines.

New OEM factory part, not an aftermarket. Supersedes to Mercury 55278A4.

Fits the following Mercury/Mariner outboards:

35 (2 CYL.) 209608 & Up (MERCURY)
35 (2 CYL.) 6445653 THRU 0B110788 (MERCURY)
35 (2 CYL.) 9384476 & Up (MERCURY)
50 (3 CYL.) 6428681 THRU 0B122929 (MARINER)
50 (3 CYL.) 6428681 THRU 0B122929 (MERCURY)
50 (3 CYL.) 7208333 THRU 0A721307 (MARINER)
50 (3 CYL.) 7208333 THRU 0A721307 (MERCURY)
50 (3 CYL.) 9385911 THRU 9469199 (MARINER)
50 (3 CYL.) 9385911 THRU 9469199 (MERCURY)
60 (3 CYL.) 6428681 THRU 0B122929 (MARINER)
60 (3 CYL.) 6428681 THRU 0B122929 (MERCURY)
60 (3 CYL.) 7208333 THRU 0A721307 (MARINER)
60 (3 CYL.) 7208333 THRU 0A721307 (MERCURY)
60 (3 CYL.) 9385911 THRU 9469199 (MARINER)
60 (3 CYL.) 9385911 THRU 9469199 (MERCURY)
70 (3 CYL.) 4571652 THRU 5579016 (MERCURY)
70 (3 CYL.) 5579017 THRU 6428680 (MERCURY)
70 (3 CYL.) 7087823 THRU 7145937 (MERCURY)
70 (3 CYL.) 7145938 THRU 7208332 (MERCURY)
70 (3 CYL.) 8042350 THRU 8065064 (MERCURY)
70 (3 CYL.) 8065065 & Up (MERCURY)
70 (3 CYL.) 9135825 THRU 9255130 (MERCURY)
70 (3 CYL.) 9255131 THRU 9385910 (MERCURY)
70 5361993 THRU 5702219 (MARINER)
70 5702220 THRU 6428680 (MARINER)
70 7177688 THRU 7208332 (MARINER)

Please check the part numbers for your fitment needs. You are responsible for checking to make sure this fits your application. If you are unsure whether this part fits your model, please contact us with your serial number and we can help determine if it is right for your engine. Thanks for looking!!!

Thank you for shopping at Boats.Parts!!

Boats.Parts offers the most used Stern Drive & Outboard parts in Wisconsin.



Theresa-3306

Brands & Clients

  • brand
  • brand
  • brand
  • brand
  • brand
  • brand
  • brand
  • brand
  • brand
  • brand
  • brand
  • brand
  • brand
  • brand
  • brand
  • brand
  • brand
  • brand
  • brand
  • brand