Tecumseh Parts Lookup by Model - Small Engine Parts Tecumseh Parts Lookup by Model Tecumseh Parts Diagrams 2 Cycle Horizontal. 2 Cycle Short Blocks. 2 Cycle Vertical. 4 Cycle Horizontal. Service Engines And Accessories. Starter Parts. Transaxles. Connect With Us: The Jack's Small Engines Newsletter. Subscribe to our email newsletter to receive promotions, helpful DIY articles, and Tecumseh Small Engine Parts and Repair Information Tecumseh Small Engine Parts and Repair Information. Tecumseh has been one of the most prominent names in the small engine business for over a hundred years, growing in the 1960’s into the second largest manufacturer of small engines in North America.