The acronym MECOA stands for the Model Engine Company of America of 16015 Adelante Street, Irwindale, California, 91702 USA. The company is owned by Randy Linsalato. 

It's impossible in a few paragraphs to describe the range of engine-related products which this company offers. MECOA owns the K&B, Webra, Fox and HB lines among others and is able to offer specific engines in those and other ranges as well as many spare parts for them. A number of fine replicas of classic engines are also produced as time and circumstance permit. The company sells a wide variety of glow plugs, including some glow-heads for long-discontinued powerplants. An amazing array of accessories is also on offer.

One could go on and on, but the truth is that only a visit to MECOA's outstanding website will reveal the full scope of the products offered by this company.  I have found them to be a very ethical company which provides excellent service to its customers. I strongly recommend a visit - you'll be amazed!