The Enginetech R40658-060 engine cast iron piston ring complete set is designed for precise fit and reliable performance in classic Oldsmobile Cutlass models from 1968 to 1974, including the Cutlass Supreme. Crafted with high-quality materials, these piston rings ensure optimal sealing and longevity for your engine rebuild. The set includes top and second compression rings, both with a thickness of 5/64 inch, and an oil ring with a thickness of 3/16 inch, all engineered to meet SAE guidelines for consistent end gaps. The outside diameter of the rings is 4.057 inches, providing a perfect fit for the specified engines, helping restore compression and improve engine efficiency. Engine rebuilds require durable, precise piston rings, and Enginetech’s commitment to quality makes this set an excellent choice for professional mechanics and enthusiasts alike. Our parts are designed specifically for engine builders who demand reliable and long-lasting components, backed by nationwide distribution and exceptional customer service. Whether you’re restoring a vintage vehicle or performing a rebuild, this complete piston ring set ensures a proper seal and optimal engine performance. Trust Enginetech to supply the high-quality parts you need to get your engine running smoothly again.
Features:
Top Compression Ring Thickness: 5/64 inch for effective sealing
Second Compression Ring Thickness: 5/64 inch for durability
Oil Ring Thickness: 3/16 inch to ensure proper lubrication
Ring Outside Diameter: 4.057 inches for a precise fit in Oldsmobile Cutlass engines
Performance Part offers a Limited Warranty to entire products to be free from defects in workmanship and material under normal service conditions for a period of 90 days whichever occurs from the original date of delivery of the good.
The warranty is not transferable, is valid to the original purchaser, and is limited to the replacement of defective products only.
This Limited Warranty does not cover labor, damage from accidents, alterations, misuse, or modifications not intended by the manufacturer, and other expenses such as towing loading fluids, oils, or car rentals.
All warranty claims must be pre-authorized and returned prepaid to Performance Part for inspection and approval.
No exchanges will be made for any product that has been damaged, misused, or improperly installed. We always recommend professional installation of our products.
The buyer assumes the risk of damage caused by improper installation.
All disputes arising from the transaction shall be resolved by a court of competent jurisdiction within Los Angeles County, California.
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