SIERRA MerCruiser 7/8 Inch Welch Plug, Replaces 19-32652 – 18-4272

Description

SIERRA MerCruiser 7/8 Inch Welch Plug, Replaces 19-32652 – 18-4272

Sierra 18-4272 is a Welch / expansion plug for MerCruiser engine applications using 7/8-inch Welch plug 19-32652.

• 7/8-inch diameter expansion/Welch plug for specified MerCruiser engine castings.
• Direct cross-reference for MerCruiser 19-32652.
• Install into a clean, corrosion-free bore using the correct driver; verify seating depth and sealing condition before engine operation.
• Designed as a direct marine-service replacement where the listed Sierra/OEM reference is specified.
• Compare the original part number, dimensions and assembly configuration before installation.

Fitment for marine engine and drive service parts can vary by model, serial number, drive/gearcase, cooling configuration and prior OEM supersessions. Compare the original OEM number and physical configuration before installation, and follow the applicable manufacturer service procedure and torque specifications.

Specifications

• Manufacturer: Sierra
• Part Number: 18-4272
• Part Type: Welch / expansion plug
• Application: MerCruiser engine applications using 7/8-inch Welch plug 19-32652.
• Outside Diameter: 7/8 in (0.870 in nominal source dimension)

Interchange / OEM References

• MerCruiser: 19-32652