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The Omix 0.040-inch over-bore piston fits 134 ci engines in a wide set of Willys and Jeep vehicles from 1941–1971. Sold individually with wrist pin and replacing OE 8121658, it requires four pistons per engine and may necessitate engine work during installation. Backed by a limited five-year warranty, this OE-style piston supports engine rebuilds where .040 over specifications are required for proper fit and performance restoration.
Omix Piston 134Ci .040 41-71 Willys & Jeep
