King Engine Bearings Toyota 3K/4K/(Size +0.50mm) Connecting Rod Bearing Set

If you're rebuilding the engine in your 1968-1979 Toyota Corolla, especially one with a 3K or 4K engine, new connecting rod bearings are a critical part of the job. These bearings sit between the connecting rod and the crankshaft, allowing the rod to spin smoothly while handling significant loads. Replacing them is essential to ensure proper oil clearance and prevent premature wear on your freshly rebuilt engine.

This set from King Engine Bearings uses a bimetal construction with an aluminum base, a common and well-built material for modern engine bearings. The bearings in this specific set are 0.50mm undersize, meaning they are intended for a crankshaft that has been machined down by 0.50mm. This is a standard practice when rebuilding an engine to ensure a fresh, perfectly round surface for the bearings to run on.

When installing these bearings, always refer to the manufacturer's service manual for the correct torque specifications and oil clearance measurements. Proper installation is key to getting the most life out of your engine rebuild.