The Speedmaster PCE428.1001 is an adjustable aluminum piston ring compressor designed to fit bore sizes ranging from 4.000" to 4.060", making it a reliable tool for engine assembly work within that bore range. Its adjustable design allows for a precise, snug fit around the piston rings, helping to guide pistons smoothly into the cylinder bore without damaging rings or cylinder walls.
Constructed from aluminum for a lightweight yet durable build, this ring compressor is a practical addition to any engine builder's toolkit. Whether you're performing a rebuild or a fresh engine assembly, the PCE428.1001 provides a consistent, controlled compression of the ring pack to streamline the installation process.