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Sierra Marine

Sierra Marine Plug-Off Caps

5.0 out of 5 stars 1 Customer Reviews

Sierra Marine plug-off caps are made from durable, high-quality rubber. They're perfect for blocking off vacuum lines or hoses to perform engine diagnostic tests. The caps are available in different sizes so you can use them for a variety of applications in your engine bay.

Results 1 - 3 of 3

Sierra Marine Plug-Off Caps 18-0549

Sierra Marine Plug-Off Caps 18-0549

Sierra Marine Plug-Off Caps 18-0549

Vacuum Caps, Rubber, 1 in. Diameter, Sterndrive, Each

Part Number: RRA-18-0549

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Sierra Marine Plug-Off Caps 18-0550

Sierra Marine Plug-Off Caps 18-0550

Sierra Marine Plug-Off Caps 18-0550

Vacuum Caps, Rubber, 1 1/4 in. Diameter, Sterndrive, Each

Part Number: RRA-18-0550

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Sierra Marine Plug-Off Caps 18-4251-9

Sierra Marine Plug-Off Caps 18-4251-9

Sierra Marine Plug-Off Caps 18-4251-9

Marine Drive Unit Components, Plug, Set of 5

Part Number: RRA-18-4251-9

Not Yet Reviewed

Estimated Ship Date: Dec 12, 2025 if ordered today

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Estimated Ship Date: Dec 12, 2025 if ordered today

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