PROFORM 66767 Adjustable Piston Ring Compressor for 4.125-4.205 in Bore

The PROFORM 66767 Adjustable Piston Ring Compressor is designed for installing pistons into engine cylinders with bore sizes from 4.125 to 4.205 inches. Its adjustable design provides a secure, consistent fit across the specified bore range, helping guide piston rings evenly into the cylinder during engine assembly and reducing the risk of ring damage or improper installation.
Constructed from lightweight aluminum, this piston ring compressor is easy to handle during engine building and service work. The gold anodized finish adds durability and provides a clean, professional appearance while helping the tool withstand repeated use in demanding workshop environments. The compressor is suitable for builders, professional technicians, and performance enthusiasts working on a variety of automotive engine applications.
The PROFORM 66767 offers a practical solution for controlled piston installation without requiring separate compressors for each bore size within its adjustment range. Its compact design supports efficient use around the engine block, making it a valuable addition to an engine assembly toolkit. Use this adjustable ring compressor when accurate piston ring compression and reliable installation are essential.

Features:

• Adjustable design fits piston bores from 4.125 to 4.205 inches

• Aluminum construction provides lightweight handling during engine assembly

• Gold anodized finish supports durability and a professional appearance

• Helps compress piston rings evenly for controlled piston installation

• Suitable for automotive engine building, repair, and performance applications