Mahle Rings Perf Plasma Steel Top Ring 3.781in x 1.0MM .143in RW HVOF Moly Ring Set (48 Qty Bulk Pk)

Mahle is a well-known name in the automotive industry, especially for their engine components. This particular set of performance piston rings is built for demanding engine builds where reliability and performance are key. These top rings are made from plasma-coated steel, a strong material chosen for its durability and ability to handle high temperatures and pressures found in performance engines.

The plasma coating, applied using HVOF (High-Velocity Oxygen Fuel) thermal spray technology, creates a very dense and well-bonded layer on the ring's surface. This advanced coating helps reduce friction between the piston ring and the cylinder wall, which can lead to improved engine efficiency and a longer lifespan for both components. The rings measure 3.781 inches in bore size, with a 1.0mm top ring groove width and a 0.143-inch ring thickness. This specific configuration is designed for optimal sealing and performance in high-output engines. This is a bulk pack containing 48 rings, making it suitable for engine builders or shops working on multiple engines.

It's important to note that these rings are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures to ensure the best performance and longevity for your engine.