Pioneer Cables PE-186-B Engine Expansion Plug Kit

Engine Expansion Plug Kit for Classic Chrysler and Dodge Applications

Pioneer Cables PE-186-B is an engine expansion plug kit for select Chrysler, Dodge, and Plymouth vehicles from the late 1970s through the late 1980s. It is a brass, carded expansion plug application for engine block service where corrosion resistance and a precise sealing fit matter.

Key Features

• Brass construction for strong corrosion resistance
• Engine expansion plug kit for cylinder block service
• Carded brass application for select vehicle fitments
• Fits a broad range of Chrysler, Dodge, and Plymouth models
• Pioneer Cables PE-186-B for engine rebuild and repair work

Product Details

Pioneer Cables PE-186-B is part of a complete expansion plug program that includes brass, steel, stainless steel, and threaded options. This brass version is the right choice when the application calls for solid brass material and dependable resistance to corrosion in the engine block. Compatible With 1978-1989 Chrysler, Dodge, and Plymouth vehicles listed in the fitment data, including Dodge Challenger, Dodge D50, Dodge Colt, Dodge Ram 50, Chrysler LeBaron, and Plymouth Reliant. The PE-186-B is a practical service part for engine block sealing during rebuild or repair procedures.

Common Uses

• Seals worn or corroded engine block expansion plug openings
• Replaces leaking freeze plug locations in the cylinder block
• Addresses coolant loss caused by deteriorated block plugs
• Restores sealing integrity during engine rebuilds
• Supports repair of aging Chrysler, Dodge, and Plymouth engines

Installation Notes and Tips

Clean the plug bore thoroughly before installation and inspect the surrounding block surface for pitting or damage. Verify the replacement plug matches the original opening size and material requirement for the application. For best results, install the plug squarely and confirm a uniform seal after the cooling system is filled and tested.

Quality Assurance

Pioneer offers expansion plugs in multiple materials for different service requirements, including brass for corrosion resistance and steel or stainless steel where specified by the application. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.