Pioneer Cables PE-173-R Engine Expansion Plug Kit

Engine Expansion Plug Kit for GM Compact Cars

Pioneer Cables PE-173-R is an engine expansion plug kit for cylinder block service and rebuild work. It is built from fine-grained, cold-rolled steel and zinc plated for added corrosion resistance, making it a practical choice for engine repair on select Buick, Chevrolet, Cadillac, GMC, Oldsmobile, and Pontiac applications.

Compatible With 1982-1986 Buick Skyhawk, 1982-1986 Oldsmobile Firenza, 1986 Pontiac Sunbird, 1984-1985 Pontiac J2000 Sunbird, 1982-1984 Cadillac Cimarron, 1982-1984 Chevrolet Cavalier, 1983-1984 Chevrolet S10, 1983-1984 Chevrolet S10 Blazer, 1983-1984 GMC S15, 1983-1984 GMC S15 Jimmy, and 1982-1983 Pontiac J2000.

• Steel expansion plug construction for long-lasting strength
• Zinc plated finish for corrosion resistance
• Engine block service part for rebuild and repair applications
• Fits select GM compact cars and light trucks from the early 1980s
• Pioneer Cables part number PE-173-R for catalog matching

This engine expansion plug kit is used during cylinder block maintenance to replace worn, leaking, or corroded plugs in the engine block. It is a direct-fit service part for applications such as the Buick Skyhawk, Chevrolet Cavalier, and Pontiac Sunbird, where proper sealing is critical to maintaining cooling system integrity. PE-173-R is also a useful catalog reference when sourcing engine rebuild components for these GM platforms.

Common Repair Uses

• Stops coolant loss caused by a leaking block plug
• Replaces rusted or deteriorated expansion plugs during engine rebuilds
• Addresses corrosion around cylinder block openings
• Supports cooling system sealing after machine work or teardown
• Restores serviceability on older GM engine blocks

Installation Notes and Tips

Inspect the cylinder block bores before installation and clean away rust, scale, and old sealant so the new plug seats evenly. Verify the plug style and diameter against the engine block opening before pressing or driving it into place. For best results, follow the engine builder’s service procedure and confirm cooling system integrity after installation.

Quality Assurance

Pioneer Cables offers expansion plugs in multiple materials for engine rebuilding needs, including steel, stainless steel, brass, and threaded styles. PE-173-R uses steel construction with a zinc-plated finish to support corrosion resistance in service.