Clevite GMC Pass 61 1.0L Eng 1989-93 Suzuki 1298cc 1324cc Engs 1985-93 Thrust Washer Set

The Clevite TW-455S is an engine crankshaft thrust washer set that includes two pieces. The product details explain the function and evolution of main bearing grooving, noting that modern lower main bearings often omit grooves for a thicker oil film and improved life. Upper main shells retain grooves to supply oil to connecting rods. Clevite offers various performance bearing series, including P-Series for high RPMs, H-Series for competition engines, K-Series with TriArmor coating, V-Series with lead-indium overlay, and M-Series with a babbitt lining for engines with severe crankshaft deflections.