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Main bearings have one of the toughest, dirtiest jobs in your engine. A good-quality main bearing must withstand extreme heat, friction, and high-rpm stress to keep...
Main bearings have one of the toughest, dirtiest jobs in your engine. A good-quality main bearing must withstand extreme heat, friction, and high-rpm stress to keep your engine operating at its best. At Summit Racing, top-quality main bearings are all we offer. We’re talking industry-leading brands like Clevite, Sealed Power, King Engine Bearings, Speed Pro, SCAT, Callies, and other top names. These are companies that know how to engineer a main bearing for optimum performance in anything from stock V8s to high-end race mills. Whether you’re building a fresh new engine or performing a main bearing replacement,...
Main bearings have one of the toughest, dirtiest jobs in your engine. A good-quality main bearing must withstand extreme heat, friction, and high-rpm stress to keep your engine operating at its best. At Summit Racing, top-quality main bearings are all we offer. We’re talking industry-leading brands like Clevite, Sealed Power, King Engine Bearings, Speed Pro, SCAT, Callies, and other top names. These are companies that know how to engineer a main bearing for optimum performance in anything from stock V8s to high-end race mills. Whether you’re building a fresh new engine or performing a main bearing replacement, we’ve got what you need!
Showing In Stock Items. Show All 6 Items.
Main Bearings, AM-Series, Alecular Silicon, 0.50mm Crankshaft Undersize, Lexus, Toyota, 2.5, 3.0, 3.4L, Set of 4
Part Number: KGB-MB4012AM05
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
Main Bearings, AM-Series, Alecular Silicon, 0.75mm Crankshaft Undersize, Lexus, Toyota, 2.5, 3.0, 3.4L, Set of 4
Part Number: KGB-MB4012AM075
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, Lexus, Toyota, 2.5, 3.0, 3.4L, Set of 4
Part Number: KGB-MB4012AM10
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
Main Bearings, AM-Series, Alecular Silicon, 0.25mm Crankshaft Undersize, Lexus, Toyota, 2.5, 3.0, 3.4L, Set of 4
Part Number: KGB-MB4012AM025
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
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