Mahle 41859CP Engine Piston Ring Set

Reliable Engine Piston Ring Set for GM and Related Vehicles

The Mahle 41859CP engine piston ring set is designed to meet the demanding requirements of various GM and related vehicle models. Engineered with premium materials and precise specifications, this piston ring set ensures optimal sealing and performance for your engine's cylinder block.

• Bore diameter of 3.780 inches for accurate fitment
• Premium item grade for durability and reliability
• Shallow groove oil ring assembly made from stainless steel
• Oil ring assembly thickness of 3.00 mm for effective oil control
• Plasma-moly coating on piston ring face to reduce wear
• Standard piston ring oversize for direct replacement
• Carbon steel construction for top and second rings with 1.50 mm axial height thickness

Technical Details and Material Specifications

This Mahle piston ring set (part number 41859CP) features a shallow groove oil ring assembly crafted from stainless steel, providing corrosion resistance and consistent oil scraping performance. The oil ring assembly thickness of 3.00 mm supports efficient oil control to reduce consumption and maintain engine cleanliness. Both the top and second rings are made from carbon steel with a 1.50 mm axial height thickness, offering strength and durability under high combustion pressures. The piston ring face is coated with plasma-moly, a treatment that enhances wear resistance and extends service life. The bore diameter of 3.780 inches ensures compatibility with specific cylinder blocks in select GM and related vehicles.

Compatible Vehicles and Applications

This piston ring set is compatible with a range of Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Pontiac, and Saab models. It is suitable for engines in vehicles such as the Chevrolet Silverado 1500, GMC Sierra 1500, Cadillac Escalade, Buick LaCrosse, Hummer H3, and Isuzu Ascender, among others. The Mahle 41859CP is designed for use in engines requiring a 3.780 inch bore diameter piston ring set with standard oversize dimensions.

• Restores proper compression and sealing in worn or damaged cylinders
• Reduces excessive oil consumption and smoke emissions
• Improves engine performance and fuel efficiency
• Minimizes blow-by gases to maintain engine cleanliness
• Addresses piston ring wear and cylinder scoring issues

Installation Notes and Tips

When installing the Mahle 41859CP piston ring set, ensure the cylinder bore is clean and properly honed to the specified 3.780 inch diameter. Follow manufacturer torque specifications and ring end gap settings for optimal sealing. Use appropriate piston ring compressors and avoid over-expanding the rings during installation to prevent damage. Verify correct ring orientation and placement according to engine service manuals for Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Pontiac, and Saab models.

Quality Assurance and Warranty

Mahle piston rings are manufactured to meet strict quality standards, ensuring consistent performance and durability. The 41859CP piston ring set undergoes rigorous testing for material integrity and dimensional accuracy. While specific warranty details are not provided, Mahle products typically come with manufacturer-backed quality assurance to support professional engine rebuilds and repairs.