King Engine Bearings Toyota 3K/4K/(Size +1.0mm) Connecting Rod Bearing Set

This is a set of connecting rod bearings for the Toyota 3K and 4K engines, specifically for the 1968-1979 Toyota Corolla. These bearings are crucial for the proper function of your engine's rotating assembly, as they sit between the connecting rod and the crankshaft journal, reducing friction and wear. This particular set is sized 1.0mm larger than standard, meaning it's intended for engines that have had their crankshaft journals machined down by 1.0mm during a rebuild.

King Engine Bearings uses a bimetal construction with an aluminum base for these bearings. This type of material is known for its good load-carrying capacity and compatibility with various oil types. They are designed to handle the pressures and temperatures found in a running engine, helping to ensure the longevity of your crankshaft and connecting rods.

When rebuilding or repairing your 3K or 4K engine, using correctly sized bearings is essential. If your crankshaft has been turned undersize, this 1.0mm set is what you'll need to achieve the proper oil clearance and ensure your engine runs smoothly.