Mahle S42097.010 Engine Piston Ring Set

Engine Piston Ring Set for Ford F-250 and F-350 Super Duty

The Mahle S42097.010 engine piston ring set is designed specifically for Ford F-250 Super Duty and F-350 Super Duty trucks. Engineered to meet precise bore diameter specifications, this premium-grade piston ring set ensures reliable sealing and optimal engine performance.

• Bore diameter: 3.876 inches for exact fitment
• Premium item grade for durability and performance
• Oil ring assembly with 2-piece groove type made from Gns material
• Oil ring thickness (axial height): 0.1181 inches
• Top piston ring made of carbon steel with 0.1406 inch thickness
• Second piston ring constructed from cast iron, 0.0783 inch thickness
• Plasma-moly coating on piston ring face for wear resistance
• Oversize piston ring at 0.010 inch for precise bore matching

Detailed Product Description

The Mahle S42097.010 piston ring set is engineered to provide a precise fit for the 3.876-inch bore diameter found in Ford F-250 Super Duty and F-350 Super Duty engines. Featuring a premium-grade construction, the set includes a 2-piece oil ring assembly made from Gns material, designed to maintain effective oil control and reduce consumption. The piston rings are coated with plasma-moly on the face, enhancing wear resistance and extending service life under demanding operating conditions.

The top ring is crafted from carbon steel with a thickness of 0.1406 inches, providing a strong seal against combustion gases. The second ring, made from cast iron and measuring 0.0783 inches thick, supports additional sealing and oil scraping functions. The piston ring oversize of 0.010 inches allows for precise matching to engine bore wear, ensuring optimal compression and engine efficiency.

Common Applications and Problem Solving

• Restores compression loss due to worn or damaged piston rings
• Reduces excessive oil consumption in Ford F-250 and F-350 Super Duty engines
• Improves engine performance by maintaining proper sealing
• Addresses blow-by issues caused by degraded piston rings
• Supports engine rebuilds requiring precise bore diameter matching

Installation Notes and Tips

When installing the Mahle S42097.010 piston ring set, ensure the engine bore diameter matches the 3.876-inch specification with the 0.010-inch oversize taken into account. Proper ring gap measurement and orientation are critical for optimal sealing and engine performance. Use appropriate ring compressors and follow manufacturer torque specifications during installation to avoid damage.

Quality Assurance and Warranty

Mahle manufactures this piston ring set to meet stringent quality standards, ensuring consistent performance and durability. The premium-grade materials and plasma-moly coating contribute to extended service life. Please refer to Mahle's warranty policy for coverage details related to manufacturing defects.