Wiseco RCS09450 94.5mm Tapered Piston Ring Compressor Sleeve

The Wiseco RCS09450 is a 94.5mm bore-specific tapered ring compressor sleeve engineered to simplify piston installation during engine rebuilds. Machined from Wiseco sleeve forgings, this tool is built to the same exacting standards as Wiseco's renowned forged pistons, delivering the durability and precision that professional engine builders demand.

Key Features:

• Hard anodized and Teflon coated for reduced friction and long-term wear resistance
• Smooth tapered radius guides piston rings evenly and gently into the 94.5mm bore
• Bore-specific design — engineered exclusively for 94.5mm bore applications for a precise, repeatable fit
• Compatible with any piston brand — works with pistons from any manufacturer
• Compresses thin, high-performance oil rings smoothly and evenly, greatly reducing the risk of bent or broken rings during installation
• Allows the piston to slide into the cylinder bore with minimal resistance compared to traditional split band or clamp-style compressors

Unlike adjustable band clamp-style ring compressors, the Wiseco tapered sleeve design eliminates uneven clamping pressure that can nick or crack modern thin piston rings. The sleeve's taper guides each ring progressively into the bore, resulting in a smoother, safer installation process whether you're working in a professional shop or building an engine at home.

Wiseco RCS tapered piston ring compressor sleeves are available for bore sizes ranging from 65.5mm to 105.1mm, making it easy to build out a complete set for your shop. The RCS09450 is an essential tool for any serious engine builder working with 94.5mm bore pistons.