Additional Details:

• Thread Size: 1/8" or 3.2mm - 27 NPT
• Note: Pipe sealant with Teflon is recommended for use on plug threads
• Material: Brass

Use With:

• 56507: Loctite Pipe Sealant (PST 6ml w/ Teflon)

Interchanges/Replaces

Chrysler/Force/US Marine

• 22-328021
• 22-328022
• F700633
• FI5810151

GLM

• 21893

Mercruiser Stern Drive

• 22-32802
• 22-328021
• 22-328022
• 22-841908

Mercury Marine

• 22-30139
• 22-32802
• 22-328021
• 22-328022

Use With:

• 18-1913: Elbow
• 18-1941: Manifold End Plate
• 18-1942: Manifold End Plate w/ hole
• 18-1945: Riser
• 18-1946: Elbow
• 18-1940: Manifold

Interchanges/Replaces

Barr

• CM-20-6674P

Mallory

• 9-40373

Osco

• 480-MK

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-4257		2	Pipe Plug		N/A
18-4263	Chrysler/Force/US Marine 22-328021 22-328022 F700633 FI5810151 GLM 21893 Mercruiser Stern Drive 22-32802 22-328021 22-328022 22-841908 Mercury Marine 22-30139 22-32802 22-328021 22-328022	1	Pipe Plug		N/A
18-2941	Barr CM 1 6672D Chrysler Inboard 2469559 2847480 Mallory 9-65300 Osco 480	1	End Cap Gasket (Open)		N/A