Reseal your engine's casting openings with the Pioneer Automotive Industries Engine Expansion Plug Kit (PE-184), a direct-fit replacement set for a run of classic Cadillacs — the 1993 Cadillac 60 Special, 1987-1991 Cadillac Allante, 1980-1995 Cadillac DeVille, 1981-1993 Cadillac Eldorado, 1980-1992 Cadillac Fleetwood, and 1981-1993 Cadillac Seville.
Expansion plugs — also called core or freeze plugs — fill the machined casting openings left in the engine block and cylinder head during manufacturing. This kit supplies replacement plugs for worn or leaking originals, a common job during an engine rebuild or reseal.
Signs a plug may need replacing include seepage or a leak at the plug, or a plug that has corroded or backed out of its bore. If a failed expansion plug is the cause of your leak, this kit replaces it. Manufacturer part number PE-184 (also PE184).
What is the Pioneer PE-184 kit?
It's an engine expansion plug kit that supplies press-fit core/freeze plugs used to seal the machined casting openings in the engine block and cylinder head.
Which vehicles does this kit fit?
It's cataloged for the 1993 Cadillac 60 Special, 1987-1991 Allante, 1980-1995 DeVille, 1981-1993 Eldorado, 1980-1992 Fleetwood, and 1981-1993 Seville. See the Buyer's Guide tab to confirm your vehicle.
How do the plugs install?
Expansion plugs are press-fit — each is driven into its bore to seal the casting opening. No bolts or threaded connections are used.
When should I replace expansion plugs?
Consider replacing them if you see seepage or a leak at a plug, or find a plug that has corroded or worked loose. Many are renewed together during an engine rebuild or reseal.
Does this kit require bolts or sealant hardware?
No bolts are needed; the plugs are press-fit into their bores. Consult the vehicle service information for the correct installation procedure and any recommended sealer.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
