Drive Parts - Drain Screws

Additional Details:

• Thread Size: 3/8" or 9.5mm - 16
• For: MerCruiser I,R,MR,Alpha One,TR,TRS & all O/Bs with 3/8-16 non-magnetic gear lube fill or vent screws

Use With:

• 18-2945: Drain Screw Gasket
• 18-2945-9: Drain Screw Gasket (Priced Per Pkg of 2)
• 18-29451-9: Drain Screw Gasket (Priced Per Pkg of 50)

Interchanges/Replaces

Chrysler/Force/US Marine

• 10-79953
• 10-79953A2
• 10-F50109
• F40109

GLM

• 22420

Mallory

• 9-72650

Mercruiser Stern Drive

• 10-28634
• 10-28634A1
• 10-79953
• 10-79953A2
• 10-79953Q04
• 10-79953Q2
• 816610A1
• 816610A2

Mercury Marine

• 10-20259
• 10-28634
• 10-28634A1
• 10-79953
• 10-79953A2
• 10-79953Q04
• 10-79953Q2

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2945	Chrysler/Force/US Marine 12-19183 F50556 F8077 F8186 Johnson/Evinrude Outboard 307552 Mallory 9-60101 9-60102 Mercruiser Stern Drive 12-19183 12-191832 12-191833 12-19183B 12-20260 12-20260B Mercury Marine 12-19183 12-191832 12-191833 12-20260	1	Drain Screw Gasket		N/A

Additional Details:

• Thread Size: 3/8" or 9.5mm - 16
• Note: Not to used on #1/R lower units
• Fits: Mercury/Mariner O/Bs of Japanese origin that use an 8x1.25 metric threaded screw
• Fits: Mercruiser I, R, MR, Alpha One, TR, TRS

Use With:

• 18-2945: Drain Screw Gasket
• 18-2945-9: Drain Screw Gasket (Priced Per Pkg of 2)
• 18-29451-9: Drain Screw Gasket (Priced Per Pkg of 50)

Interchanges/Replaces

Chrysler/Force/US Marine

• 22-67892
• 22-67892A1

GLM

• 21731

Mallory

• 9-72651

Mercruiser Stern Drive

• 10-14834
• 10-14834A1
• 22-67892
• 22-67892A06
• 22-67892A1
• 22-8M0058389

Mercury Marine

• 10-14834
• 10-14834A1
• 22-67892
• 22-67892A05
• 22-67892A06
• 22-67892A1

Sears

• 22-67892A1

Additional Details:

• Thread: M8-1.25

Use With:

• 18-4698: Drain Fill Washer

Interchanges/Replaces

Mallory

• 9-72653

Yamaha Outboard

• 90340-08002-00
• 90340-08014-00
• 90340-08125-00
• 90340-08M04-00

Additional Details:

• Head Style: Allan Head

Interchanges/Replaces

Johnson/Evinrude Outboard

• 307551
• 912625

OMC Stern Drive

• 307551
• 912625
• 982851

Key Features:

• Fits: OMC V-6, V-4 (1979-Up), 60-75 hp 3 cylinder, 20-35 hp (1985-97)

Additional Details:

• Head Style: Slot Head

Use With:

• 18-4248: Drain/Fill Plug Washer
• 18-42481-9: Drain/Fill Plug Washer (Priced Per Pkg of 50)
• 18-4248-9: Drain/Fill Plug Washer (Priced Per Pkg of 5)

Interchanges/Replaces

GLM

• 22420

Johnson/Evinrude Outboard

• 307551
• 912625

Mallory

• 9-72655

OMC Stern Drive

• 307551
• 912625
• 982851

Key Features:

• Fits: Cobra 2.3, 3.0, 3.8 & 5.8L (1986-95), V-6, V-4 (1979-Up), 60-75hp 3 cyl. 40/50hp (1989-98)

Additional Details:

• Head Style: Slot Head

Interchanges/Replaces

GLM

• 21731

Johnson/Evinrude Outboard

• 318544

Mallory

• 9-72654

OMC Stern Drive

• 318544
• 912624

Additional Details:

• Thread: M8-1.25

Use With:

• 18-4698: Drain Fill Washer
• 18-46981-9: Drain Fill Washer (Priced Per Pkg of 50)

Interchanges/Replaces

Mallory

• 9-72652

Yamaha Outboard

• 688-45341-00-00
• 688-45341-10-00
• 90340-08M02-00