Designed for precise engine rebuilding, the Enginetech R40558-040 engine cast iron piston ring set offers high-quality components engineered to meet the demands of professional rebuilders and DIY enthusiasts alike. This complete set includes top compression rings, second compression rings, and oil rings, all crafted with exacting standards to ensure optimal engine performance and longevity. The rings feature consistent end gaps following SAE guidelines, providing a reliable seal and smooth operation across various engine applications. With a ring outside diameter of 4.050 inches, these rings are suitable for a range of domestic and import engines, making them a versatile choice for engine rebuild projects. Constructed from durable cast iron, these piston rings resist wear and maintain their integrity under high-pressure conditions. The top compression ring thickness is 5/64 inch, the second compression ring is 3/32 inch thick, and the oil ring measures 3/16 inch, offering a balanced combination of strength and flexibility. Enginetech’s commitment to quality ensures that each set is engineered specifically for engine rebuilers, helping to restore engine compression and efficiency effectively. Our nationwide distribution network and dedicated customer service make sourcing high-quality engine parts straightforward and dependable. Whether restoring a vintage engine or maintaining a modern powertrain, the R40558-040 set provides a reliable, cost-effective solution. Designed to meet or exceed industry standards, these piston rings are an essential component for achieving optimal engine compression, reducing oil consumption, and extending engine lifespan. Trust Enginetech for high-performance engine parts tailored to your specific needs, backed by decades of expertise in the engine rebuilding industry.
Features:
Consistent end gaps following SAE guidelines ensure reliable sealing and performance
Top compression ring thickness: 5/64 inch for optimal compression
Second compression ring thickness: 3/32 inch for durability and flexibility
Oil ring thickness: 3/16 inch to efficiently control oil consumption
Ring outside diameter: 4.050 inches suitable for various engine models
Constructed from durable cast iron for wear resistance
Engineered specifically for engine rebuilder applications
Compatible with both domestic and import engines
Features:
Top Compression Ring Thickness: 5/64 in
Second Compression Ring Thickness: 3/32 in
Oil Ring Thickness: 3/16 in
Ring Outside Diameter: 4.050
Aaiaid Part Number: BBPTR40558-040
Part Number: R40558-040
Brand Aaia: BBPT
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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