BCBC MPE-117BR Engine Expansion Plug Kit

Engine expansion plug kit for rebuilds

This Melling engine expansion plug kit provides the plugs needed to complete a rebuild on a wide range of domestic and import engine applications. It is a standard replacement kit with brass construction and both press-fit and screw-in attachment styles represented in the application coverage.

Key features

• Brass expansion and freeze plugs for engine block service
• Standard replacement grade for rebuild work
• Coverage for applications that use press-fit and screw-in plugs
• Made in the USA
• Part number MPE-117BR

Detailed description

Melling MPE-117BR is an engine expansion plug kit built for engine block component service during a rebuild. The brass material offers a traditional water-jacket plug construction, and the kit is organized to simplify sourcing the correct expansion plugs and pipe plugs for the listed application. This part is used across many Jeep and American Motors engines, including Jeep CJ5, Jeep J10, and American Motors Hornet applications. If you are restoring or rebuilding a Jeep CJ7 or American Motors Javelin engine, MPE-117BR helps match the plug requirements for stock-style engine assembly.

This part cross-references Pioneer Automotive Industries PE-117-BR for the same application.

What this part is used for

• Replacing worn or missing engine block freeze plugs
• Sealing coolant passages during engine assembly
• Completing a rebuild when original plugs are corroded or damaged
• Matching plug requirements for stock engine service
• Reducing time spent sourcing individual plug types

Installation notes and tips

Verify the engine application before installation and confirm whether the block uses press-fit or screw-in plug locations. Clean the plug bores and sealing surfaces thoroughly before assembly. Follow the engine builder’s service procedure for proper fitment and sealing.

Quality assurance

Melling manufactures this kit in the USA and supplies it as a standard replacement engine service part. Part number MPE-117BR is supported by application-specific coverage for rebuild use.