This is the Connecting Rod used in the following engines 11874 .18CV-R(P)11G Slide Carb On-Rd 11870 .18CV-R W/11J Rotary Carb - OSMG2102 11881 .18CV-RX W/11G Slide Carb - OSMG2104 11880 .18CV-RX W/11J Rotary Carb - OSMG2105 11860 .18CV-RX(S) W/11J Rotary Carb FEATURES: Aluminum construction w/pressed in brass bushings INCLUDES: One Connecting Rod (Key# 6) REQUIRES: OSMG4828 21823000 Cylinder/Piston Assembly OSMG7635 21816000 Piston Pin OSMG7477 21817000 Piston Pin Retainer SPECS: Length: 1.3" (32.7mm) Width: 0.3" (8.3mm) @ widest point Thickness: 2" (5.1mm) @ thickest point Diameter: 0.18" (4.5mm) ID of top hole 0.16" (4.0mm) ID of bottom hole OS EnginesPart OSM21815000