Honda V-Twin general-purpose diesel

New generation V-Twin general-purpose diesel from Honda includes six models: GX630, GX660, GX690 (shown), GXV630, GXV660 and GXV690. All are available in horizontal or vertical shaft configurations. All will meet the 2011 EPA regulations for emissions without a catalyst, the company says. Cooling has been improved with a 36-blade, low-noise cooling fan and an integrated cylinder and head, which eliminates the head gasket. Other features: hemispherical combustion chamber design, higher compression ratio, increased displacement, and steel connecting rods.