This is the Needle Bearing for the DL-20 Engine - DLEG0020. The Needle Bearing installs on the crankpin and the connecting rod slides over it. FEATURES: Constructed of hardened steel INCLUDES: One Needle a.k.a. Roller Bearing REQUIRES: Installation on to crankpin SPECS: Outer Diameter: 0.43" (11mm) Inner Diameter: 0.32" (8mm) Length: 0.39" (10mm) dcw 02/10/11 ir/jxs