Seal Kit, Gear Housing 

Key Features:

• Does not include Driveshaft Housing Gasket

Additional Details:

• Fits: Mariner 9.9C & 15C Models

Interchanges/Replaces

Mallory

• 9-74501

Mercury Marine

• 27-99049M

Yamaha Outboard

• 683-W0001-21-00
• 683-W0001-C1-00

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-4698	Mallory 9-60100 Mercury Marine 27-81987 27-81987M Yamaha Sterndrive 604-45342-00-00 90430-08020-00 90430-08801-00	3	Drain Fill Washer		N/A
18-99152	Mercury Marine 27-84075M Yamaha Outboard 683-45315-00-00 683-45315-A0-00	1	Lower Casing Gasket		N/A
18-0768	Mercury Marine 27-84024 27-84024M Yamaha Outboard 682-44315-00-00 682-44315-A0-00	2	Wear Plate Gasket		N/A
18-99021	Mallory 9-60324 Mercury Marine 27-83955M Yamaha Outboard 682-41133-00-00 682-41133-01-00 682-41133-A0-00	1	Exhaust Manifold Gasket		N/A
NSS	Yamaha Outboard 626-44365-01-00	1	Damper, Water Seal	No Image	N/A
NSS	Yamaha Outboard 6E7-44366-00-00	1	Damper, Water Seal	No Image	N/A
NSS	Yamaha Outboard 93101-17054-00	2	Oil Seal	No Image	N/A
NSS	Yamaha Outboard 93101-20048-00	2	Oil Seal	No Image	N/A
NSS	Yamaha Outboard 93210-57M09-00	1	O-Ring	No Image	N/A