Spartan Motors, the Charlotte, Michigan-based manufacturer of custom motorhome chassis, fire truck chassis and emergency-rescue vehicles reported net earnings of $US1.3 million, or $0.10 per share, on sales of $61.1 million for the fourth quarter of 2003, compared with $2.2 million, or $0.18 per share, on sales of $63.4 million for the same quarter of last year.