Pioneer Automotive Industries Engine Expansion Plug Kit P/N:PE-118-B

Seal your engine's core openings with the Pioneer Automotive Industries Engine Expansion Plug Kit (PE-118-B). It's a direct-fit replacement for a wide range of Buick and Pontiac V8 engines, including the 1973-1975 Buick Apollo [V8-5.7L], 1973-1977 Buick Century [V8-5.7L], 1968-1980 Buick LeSabre [V8-5.7L], and 1978-1980 Pontiac Bonneville [V8-5.7L] — one of 24 listed applications (see the Buyer's Guide tab for the full list, including 1966-1967 [V8-5.6L] models).

Expansion plugs (also called core plugs) fill the machined and cast openings left in the engine block and cylinder heads during manufacturing. Over time a plug can corrode and begin to seep, so keeping a kit on hand makes it easy to renew these plugs during a rebuild or repair.

• Seals the engine's core openings: replaces the expansion plugs that close off the casting openings in the block and heads.
• Press-fit design: expansion (cup) plugs are driven or pressed into their openings rather than bolted in.
• Application-matched kit: each listed application uses one kit (quantity 1), so you order what the job needs.

If a corroded or seeping expansion plug is the cause of your leak, this kit replaces it. Diagnose the source of any leak first, since dampness can have other causes.

Manufacturer part number PE-118-B (also PE118B).