Associated Serial Numbers
| SERIAL NUMBER LIST-ASSOCIATED & UNITED 4
& 5 DIGIT S/N Legend: A= Associated Engine, U=United Engine _ = Information Not Available Serial No. Make Year HP 1121* A 1911 2 1/4 *Early Hired Man with unusual ID plate patented Jn.3,1911 0447 A 1914 3/4 23313 A 1914 1 3/4 23584 A 1914-15 1 3/4 23782 U 1915 - 25325 A 1915 3/4 30217 A 1915 1 3/4 32860 A 1916 1 3/4 37030 U 1917 _ 37289 A 1917 3/4 52079 U 1916 1 1/2 58125 U 1917 3 1/2 80886 U 1915 1 3/4 81502 U 1912 1 3/4 81790 U 1915-16 1 3/4 83291 A 1917 2 SERIAL NUMBER LIST-ASSOCIATED & UNITED ENGINES 6 & 7 Digit S/N Legend: A=Associated Engine, U=United Engine -=Information Not Available TG=Throttle Governed Serial No. Make Year HP 103079 U 1913-14 1 3/4 113445 A 1914 1 3/4 117848 U 1914 2 117925 A 1914 2 1/4 131067 A 1915 2 1/4 133166 A 1917 2 1/4 135873 A 1917 2 1/4 137213 A 1916 2 1/4 143575 A 1916 1 3/4 144744 A 1917 2 151328 - 1917 2 1/2 159412 A 1917 2 165017 A 1918 2 1/2 201175* U 1926 2 1/4 201826* U 1926 2 1/4 201853* U 1926 2 1/4 *These engines were located within 2 miles of each other by different owners in Southhampton, Mass.! 202539TG U 1926 2 1/4 202672 U 1926 2 1/4 203204 U 1918 2 1/4 203271 U 1918 2 1/4 205184 U 1919 2 1/4 205204 U 1919 2 1/4 206380 A 1920 2 1/4 250388 - 1915 1 1/2 257067 A 1915 1 1/2 257867 A 1915 1 3/4 258596 A 1915 1 1/2 259146 A 1915 1 1/2 312370 A - 1 3/4 316784 A - 1 3/4 321047 A 1919 1 3/4 323808 A 1920 1 3/4 328508* A 1915 1 3/4 *Experimental Mag gear setup from factory 332585 A 1920 1 3/4 332840 A 1920 1 3/4 334415 A 1920 1 3/4 337007 A 1921 1 3/4 340886 A - 1 3/4 342370 A 1920 1 3/4 342529 A 1920 2 344256 A 1921 - 357067 A - 1 1/2 401405 TG U - 4 1/2 509829 U - 3 510547 A - 3 605685 A - 6 610760 TG A 1920-21 6 801088 A 1918 8 3316784* - 1909 - *This engine was on display at a show in upstate New York (note 7 digit s/n). 1) An Associated engine Experimental, with a unique magneto and gear setup (approximately 1915). 2) An Associated engine with a 4 digit serial number (1911). 3) An Associated engine with a 7 digit serial number (1909) (This engine appears to be one made at the start of Associated production). On a general note it can be said that an engine with a 5 digit serial number was built before 1918, and the 6 digit engines appear not to have been built before 1914. |