King Engine Bearings CR4159AM0.25 Connecting Rod Bearing Set +0.25mm Oversize

The King Engine Bearings CR4159AM0.25 is a +0.25mm oversize connecting rod bearing set designed for Mazda VC, UB, NA, and VA engines. This is an OE-replacement bi-metal bearing set engineered to restore proper oil clearances during engine rebuilds where crankshaft journals have been machined 0.25mm undersize.

AM Series Material — Bi-Metal Aluminum:

• Construction: Bi-metal aluminum-based bearing, equivalent to SAE-783 specification
• Alloy Composition: Alecular Alloy (AM) — an alloy of aluminum, tin, and copper on high-strength steel backing
• Lead-Free: Environmentally safe, lead-free composite material
• Load Rating: Suited for passenger car engines operating under low to medium loads
• Softest bi-metal in King's range, ideal for OE-replacement applications

Set Contents:

• 4 pairs of connecting rod bearing shells (complete set for a 4-cylinder engine)
• Size: +0.25mm oversize

Available Sizes: This bearing family (CR4159AM) is also available in Standard, +0.50mm, +0.75mm, +1.0mm, +1.25mm, and +1.5mm oversizes to accommodate varying degrees of crankshaft regrind.

About King Engine Bearings: Founded in 1960, King Engine Bearings is a world-class specialist manufacturer of engine bearings for automotive, light and heavy-duty truck, marine, aviation, and industrial applications. King's exclusive focus on engine bearings ensures the highest levels of engineering precision and quality control in every set.