The Sierra 18-2785 Lower Unit Seal Kit is from high-quality components. Mercury 27-41899M, 27-84828M, Yamaha 689-W0001-C1-00, and Yamaha 689-W0001-21-00 are interchangeable. Sierra Marine engine products meet or exceed the specifications of the original equipment part they replace. Two oil seals (18-0296), two oil seals (18-0554), and three drain fill washers are included in this kit (18-4698).
Key Features:
- Seal Kit for Sierra Lower Unit
 - Two oil seals (18-0296), two oil seals (18-0554), and three drain fill washers are included in this kit (18-4698)
 - Designed with care
 - Mercury 27-41899M, 27-84828M, Yamaha 689-W0001-C1-00, 689-W0001-21-00 are all interchangeable.
 - Make sure the part numbers are correct.
 
Contains these products:
- 18-0776 Grommet
 - 18-0552 Grommet 26-84818M
 - 18-4698 Drain
 - Fill Washer Gasket 27-81987M (qty3)
 - 18-0554 Oil Seal 26-84813M
 - 18-0296 Oil Seal 26-83406M, 26-82233M (qty2)
 - 18-7405 O-Ring 25-84054M
 - 18-0773 Wear Plate Gasket
 
Specifications:
- SKU: 18-2785
 - UPC: 030999975607
 - Weight: 0.19 LBS
 - Manufacturer Part Number (MPN): 118-2785
 - Brand: SeaStar Solutions
 
Lower Unit Seal Kit, Meets or Exceeds OEM Specifications. Backed by Sierra's Limited Lifetime Warranty
This product replaces:
- 689-W0001-21-00, 689-W0001-C1-00, 689-W0001-C1, 689-W0001-21, 47-2785, 27-41899M, AP2332, 3099997560, 30999975607