Pioneer Cables PE-187 Engine Expansion Plug Kit

Pioneer Cables PE-187 Engine Expansion Plug Kit

Pioneer Cables PE-187 is an engine expansion plug kit for cylinder block service and engine rebuilding. It is built for applications that call for a steel expansion plug with zinc-plated corrosion resistance, including Ford Escort and Mercury Tracer fitments from the early 1980s through the mid-1990s.

Key Features

• Steel expansion plug construction for long-lasting strength
• Fine-grained, cold-rolled steel material
• Zinc-plated finish for added corrosion resistance
• Engine block service part for rebuild and repair work
• Fits 1981-1994 Ford Escort, N/A
• Fits 1991-1994 Mercury Tracer, N/A
• Fits 1981-1987 Mercury Lynx, N/A
• Fits 1982-1983 Mercury LN7, N/A

Detailed Description

PE-187 is part of Pioneer Cables’ expansion plug program for engine builders and repair technicians. This steel plug uses cold-rolled construction and a zinc-plated surface to support durability in cylinder block applications where corrosion resistance and a secure sealing surface matter. It is a direct-fit service part for select Ford Escort and Mercury models, including Mercury Tracer, Mercury Lynx, and Mercury LN7 applications listed in the fitment data. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Uses

• Replacing a leaking or corroded engine block expansion plug
• Restoring sealing integrity during engine rebuilds
• Addressing coolant loss from worn freeze plug locations
• Repairing rust-damaged cylinder block plug openings
• Servicing Ford Escort and Mercury small-car engine blocks

Installation Notes and Tips

Confirm the plug diameter and block opening condition before installation. Clean the bore thoroughly, remove rust and scale, and inspect the sealing surface for pitting or distortion. Proper seating and even installation pressure are important for a reliable seal on engine block service work.

Quality Assurance

Pioneer Cables supplies expansion plugs in multiple materials for engine rebuilding, including steel, stainless steel, brass, and threaded styles. PE-187 uses steel construction with zinc plating for corrosion resistance in the specified applications.