INDIAN SERIAL NUMBERING SEQUENCES
Year Model Eng. Number Cyl. H.P Bore Stroke Frame Number Notes 1953 353 CS61001-CS62500+ 2 CS61001-CS62500+ last batch of 53's where a large sequence of serials were skipped 1953 3 53 CS6501-CS6999 2 CS6501-CS6999 'Chief' 53, serials above 6500 accepted as 53 if registration supports. 1952 352 CS6001-CS6500 2 CS6001-CS6500 'Chief' 52, up to 6500 whether '52 or '53 may depend on registration? 1952 ? BB1001T-up 2 B1001T-up 'Warrior TT', last model year 1952 ? CS4001-up 2 CS4001-up 'Warrior', last model year, Warrior Patrols (3 wheeler for Police/FD) 1951 351 C4001-C4500 2 C4001-C4500 'Chief' 80ci, the last of the eighty's without yr confusion! 1951 651? FEA101-? 2 FEA101-? ''Dispatch Tow' Scout, NYC Fire Dept Only?, note 14 1951 ? B1001T- 2 B1001T- 'Warrior TT', frame sequence continues thru '52 1951 ? B101-up 2 B101-up 'Warrior' 1950 350 C2001-C2500 2 C2001-C2500 'Chief' 80ci, 2nd series, #'s changed, C2441-C2500 to PDNYC Police 1950 350 CEJ1001-CEJ1500 2 3501001-3501500 'Chief' 80ci (1320cc), first year for telescopic forks, 1st series 1950 ? BEJ1001-up 2 2501001T- 'Warrior TT', 30.50ci(500cc) 1950 ? BEJ101-up 2 250101-up 'Warrior', 30.50ci(500cc) 1950 250 BBEJ1001-up 2 22501001-up Scout', last model year 1950 150 AAEJ1001-up 1 11501001-up Arrow', last model year 1949 349 CDI1001-up 2 3491001-up Chief, very limited production, serials inflated 1949 249 BDI101-up 2 249101-up Scout', 26ci, (440cc), first vertical twin 1949 149 ADI101-up 1 149101-up Arrow', 13ci, (220cc), first vertical single 1948 348 CDH101-up 2 348101-up Chief', new frame, new oil pump etc 1948 648 FDH101-up150 2 648101-150 45" Daytona 'big base' Scout. note 13 1947 347 CDG101-up 2 347101-up 'Chief', no other models 1946 346 CDF101-up 2 346101-up 'Chief', new girder forks, no other models 1945 345 CDE101-up 2 345101-up 'Chief' limited production, 1944 344 CDD101-up 2 344101-up 'Chief', no other models, all military? 1943 343 CDC101-up 2 343101-up 'Chief', very limited civilian production, last of 741's, high serials 1942 442 DDB101-up 4 442101-up Indian 4, the last year of the 4ours.. 1942 342 CDB101-up 2 342101-up 'Chief', 74ci 1942 642 FDB101-up 2 642101-up 45" 'Sport Scout', last year of the SS/SSDT, Daytona in '48 1942 542 EDB101-up 2 542101-up 30.50ci 'Junior Scout' 1941 441 DDA101-up 4 441101-up Indian 4, 78ci 1941 341 CDA101-up 2 341101-up 'Chief', 74ci 1941 841 HDA101-up 2 841101-up Military, 841, 45ci transverse, shaft drive 1941 641 FDA101-up 2 641101-up 45" 'Sport Scout' and DT's 1941 741 GDA101-up 2 741101-up Military 741(b) lightweight 30.50ci note 6 and note 18. 1941 541 EDA101-up 2 541101-up 30.50ci 'Junior Scout' 1940 440 DDO101-up 4 440101-up Indian 4, 78ci 1940 340 CAV101-up 2 CAV101-up CAV=Continental Army Vehicle (aka Military Chief, Canadian) 1940 340 CDO101-up 2 340101-up 'Chief', incl Military, except Canada 1940 640 FDO101-up 2 640101-up 45" 'Sport Scout' and Military 640 Scouts note 6 and note 18. 1940 540 EDO101-up 2 540101-up 30.50ci 'Scout Pony' renamed 'Thirty-Fifty' 1939 439 DCI101-up 4 439101-up Indian 4 1939 339 CCI101-up 2 339101-up 'Chief' 74ci 1939 639 FCI101-up 2 639101-up 45" 'Sport Scout' and Dispatch Tows (DT) 1939 539 ECI101-up 2 539101-up 30.50ci 'Junior Scout' 1938 438 DCH101-up 4 438101-up Indian 4, 78ci 1938 338 CCH101-up 2 338101-up 'Chief' 74ci 1938 638 FCH101-up 2 638101-up 45" 'Sport Scout' and Dispatch Tows 1938 538 ECH101-up 2 538101-up 30.50ci 'Junior Scout' 1937 437 DCG101-up 4 437101-up Indian 4, 78ci 1937 337 CCG101-up 2 337101-up 'Chief'74ci 1937 637 FCG101-up 2 637101-up 45" 'Sport Scout' and Dispatch Tows 1937 237 BCG101-up 2 237101-up 45" Std 'Scout' last model year 1937 537 ECG101-up 2 537101-up 30.50ci 'Junior Scout' renamed 'Scout Pony' 1936 436 DCF101-up 4 436101-up Indian 4, 78ci 1936 336 CCF101-up 2 336101-up 'Chief',74ci 1936 636 FCF101-up 2 636101-up 45" 'Sport Scout' and Dispatch Tows 1936 236 BCF101-up 2 236101-up 45" Std 'Scout' 1936 536 ECF101-up 2 536101-up 30.50ci 'Junior Scout' 1935 435 DCE101-up 4 435101-up Indian 4, 78ci 1935 335 CCE101-up 2 335101-up 'Chief' 74ci 1935 635 FCE101-up 2 635101-up 45" 'Sport Scout' and Dispatch Tows note 14 1935 235 BCE101-up 2 235101-up 45" Std 'Scout' 1935 535 ECE101-up 2 535101-up 30.50ci 'Junior Scout' 1934 434 DCD101-up 4 434101-up Indian 4, 78ci 1934 334 CCD101-up 2 334101-up 'Chief', 74ci 1934 634 FCD101-up 2 634101-up 45" 'Sport Scout', 1st yr with new keystone frame 1934 234 BCD101-up 2 234101-up 45" Std 'Scout' (still chief frame] 1934 534 ECD101-up 2 5.0 534101-up 30.50ci 'Junior Scout' 1933 433 DCC101-up 4 433101-up Indian 4, 78ci (1278cc) 1933 333 CCC101-up 2 333101-up 'Chief' 74ci 1933 633 FCC101-up 2 633101-up 1yr only 45ci 'Motoplane' (in Jr Scout frame) 1933 233 BCC101-up 2 233101-up 45" Std 'Scout' 1933 533 ECC101-up 2 5.0 533101-up 30.50ci 'Junior Scout' 1932 403 DOC101-up 4 403101-up Indian 4, 78ci 1932 EOC/503 EOC101-up 2 5.0 2 1/2 3 1/16 503101-up 'Junior' or 'Pony' Scouts begin, 30.5ci (500cc) 101 mo end 1932 COC/303 COC101-up 2 8.5 3 1/4 4 7/16 303101-up Chief ,74" 1932 BOC/203 BOC101-up 2 6.61 2 7/8 3 1/2 203101-up Std 'Scout' 45" in Chief frame, 1931 HEP/302 EH1536-up 2 8.45 3 1/4 4 7/16 H1410-up Chief, 74" 1931 GP/101 EGP3081-up 2 6.61 2 7/8 3 1/2 G4050-up 101 Scout 45", also first service car. [last year] 1931 G/101 EG925-up 2 6.05 2 3/4 3 3/16 S1344-up 101 Scout 37", frame numbers continue note 9 1931 402 EA1510-up 4 12.10 2 3/4 3 1/4 A 982-up Indian 4, sequence continues to 11/1/31 1930 HEP/302 EH100-EH1535 2 8.45 3 1/4 4 7/16 -none- Chief 74", sequence continues to 11/1/31 1930 GP/101 EGP100-EGP3080 2 6.61 -none- 101 Scout 45" ,sequence continues 11/1/31 1930 G/101 EG100-EG924 2 6.05 none-SI322 note 9 101 Scout 37", continues to 11/1/31, late '30 frame no's commence 1930 402 EA776-EA1509 4 12.10 2 3/4 3 1/4 -none- Indian 4, sequence continues to 11/1/31 1929 GEP/101 DGP4318-up 2 6.61 -none- 45" 101 Scout 1929 GE/101 DG2638-up 2 6.05 -none- 37" 101 Scout 1929 402 EA100-EAXXX 4 12.10 -none- Indian 4, after 6/1/29 changes to EA series, which lasts till '31 1929 402 DA701-DAXXX 4 12.10 -none- Indian 4. up to 6/1/29 then changes to EA100 and up 1929 HEP/301 CH2225- 2 8.45 3 1/4 4 7/16 -none- 'Chief' 74ci, CH numbers continue to 11/12/29 1928 GEP/101 DGP100-DGP4317 2 6.61 -none- 45" 101 Scout changeover yr from sf scout, mostly assumed '29 1928 GE/101 DG100-DG2637 2 6.05 -none- 37" 101 Scout changeover fm short frame (sf) scout assumed '29 1928 -none- CZ100- 2 7.81 3 1/8 -none- 'Chief' 61ci,[last yr] 1928 LE/201 CL100- 1 3.03 -none- 'Prince' 21ci [last yr] 1928 -none-? CH100-CH2224 2 8.45 3 1/4 4 7/16 -none- 'Big Chief' 74ci, to 3/15/28 then model change to HEP/301 1928 -none- CGP1762- 2 6.61 -none- 101 Scout 45" change to 45" 101?note 7 1928 -none- CGP100-CGP-1761 2 6.61 -none- Scout 45" to 3/15/28 change to 45" 101? CGP444+ note 5 1928 -none- CG2385- 2 6.05 -none- 101 Scout 37" to 3/15/28 then change to 37" 101. 1928 -none- CG100-CG2384 2 6.05 -none- Scout 37" to 3/15/28 then change to 37" 101. note 7 1928 402 DA100-DA700 4 12.10 -none- Ace name dropped, model added, serial CA-DA change 6/1/29 1928 Ace CA100-CAXXX 4 12.10 -none- Indian 'Ace' to 8/1/28, DA101-DA700 are also 1928. note 10 1927 Ace VF100-up 4 12.10 -none- First Indian 'Ace' 4 cyl,78ci, and poss E1100 up note 11 1927 -none- BZ100-up 2 7.81 3 1/8 3 31/32 -none- 'Chief' 61ci(1000cc) 1927 -none- BL100-up 2 3.03 -none- 'Prince' 21ci 1927 -none- BH100-up 2 8.45 -none- 'Big Chief" 74ci 1927 -none- BGP100-up 2 6.61 -none- Scout' 45ci(750cc) 1927 -none- BG100-up 2 6.05 -none- 'Scout' 37ci (600cc), last pedestal eng mounts before though-bolt 1926 -none- AZ100-up 2 7.81 -none- 'Chief' 61ci 1926 -none- AL100-up 1 3.03 -none- 'Prince' 21ci 1926 -none- AH1180 only 2 ?? -none- 'Big Chief' 80ci, prototype, 1 only? 1926 -none- AH100-up 2 9 -none- 'Big Chief' 74ci 1926 -none- AG100-up 2 5 -none- 'Scout' 37ci 1925 Model Y 90Y001-up 2 9 -none- 'Big Chief' 74ci 1925 Model Y 80Y001-up 2 8 -none- 'Chief' 61ci 1925 Model Y 50Y001-up 2 5 -none- 'Scout' 37ci 1925 Model Y 30Y001-up 1 2.75 -none- 'Prince' 21ci (350cc) single, [first model yr] 1924 Model X 90X001-up 2 9 -none- 'Big Chief' 74ci 1924 Model X 80X001-up 2 8 -none- 'Chief' 61ci 1924 Model X 70X001-up 2 7 -none- 'Standard' ,last year for the former Powerplus 1924 Model X 50X001-up 2 5 -none- 'Scout' 37ci 1923 Model V 90V001-up 2 9 -none- 'Big Chief' 74ci(1200cc) 1923 Model V 80V001-up 2 7 -none- 'Chief' 61ci 1923 Model V 70V001 2 7 -none- 'Standard' (pplus) 61ci note 12 1923 Model NP VP001-up 2 8 -none- 'Powerplus' 72ci renamed 'Standard' note 12 1923 Model V 50V001-up 2 5 -none- 'Scout' 37ci 1922 Model T 80T001-up 2 7 -none- 'Chief' 61ci (1000cc) first year, tho sold oct '21 1922 Model NP TP001-up 2 8 -none- 'Powerplus' 72ci big valve note 12 1922 Model T 70T001-up 2 7 -none- 'Powerplus' 61ci 1922 Model T 50T001-up 2 5 -none- 'Scout' 37ci 1921 Model NP SP001-up 2 8 -none- 'Powerplus' 72ci big valve note 12 1921 Model S 70S001-up 2 7 -none- 'Powerplus' 61ci 1921 Model S 50S001-up 2 5 -none- 'Scout' 37ci 1920 Model NP RP001-up 2 8 -none- 'Powerplus' 72ci big valve note 12 1920 Model N 70R001-up 2 7 -none- 'Powerplus' 61ci 1920 Model R 50R001-up 2 5 -none- 'Scout' 37ci - [first model year] 1919 Model MP MP001-up 2 8 -none- 'Powerplus' 72ci, 8hp, big valve 1919 Model M 70M001-up 2 7 -none- 'PowerPlus', 61ci, 7hp, 2nd series 1919 Model M 40M001-up 1 4 -none- 'PowerPlus', 30.5ci single,loop frame, 1919 Model M 30M001-up 2 2.5 -none- 2 hp, loop frame, twin cyl, ci=? 1918 Model K KRX001-up 2 ?? -none- ?hp, loop frame, 2nd series, special? 1918 Model N 70K001-up 2 7 -none- 'Powerplus' 61ci 1918 Model B 50K001-up 2 4 -none- Little Twin 42ci, Hedstrom f-head motor note 17 1918 Model W 40K001-up 1 4 -none- 'PowerPlus', 33.5ci single, commercial 1918 Model 0 30K001-up 2 2.75 -none- Light Twin 15.7ci,(Horizontally opposed motor) 1917 Model J RX001-up 2 7 -none- 7hp, loop frame, special? 1917 Model N 70J001-up 2 7 -none- 'Powerplus' 2nd model year for 61ci (1000cc) 1917 Model B 50J001-up 2 4 -none- Little Twin 42ci, Hedstrom f-head motor note 17 1917 Model W 40J001-up 1 4 -none- 'PowerPlus', single,4hp, 33.5ci commercial model 1917 Model O 30J001-up 2 2.75 -none- Light Twin 15.7ci, (Horizontally opposed motor) 1916 Model G 70H001-up 2 7 -none- 'Powerplus' first model year for L-head 61ci with cradle spring frame. 1916 Model F 70H001-up 2 7 3 1/8 3 31/32 -none- 'Powerplus' first model year for L-head 61ci model with rigid frame. 1916 Model B 50H001-up 2 5 -none- Little Twin 42ci, Hedstrom f-head motor note 17 1916 Model K 20H001-up 1 2.5 3 1/8 3 3/32 -none- Featherweight" 2 hp, loop frame,two stroke 1915 Model G 70G001-up 2 7 3 1/4 3 43/64 -none- 7hp, loop frame, Big Twin, 1st series 6ci, {B} 1915 Model G 50G001-up 2 4 2 3/4 3 1/2 -none- Little Twin, 2nd series, 7hp, loop fr, note 4, chrome vanadium frames!{B} 1915 Model E 40G001-up 2 4 3 1/4 3 43/64 -none- Little Twin 42ci, Hedstrom f-head motor note 17 1914 Model F 70F001-up 2 7 3 1/4 3 43/64 -none- 7hp, loop frame, twin, 1st series, Hendee electric starter offered! 1914 Model F 40F001-up 1 4 3 1/4 3 43/64 -none- 4hp, loop frame, single, electrics fitted! 1913 Model E 70E001-up 2 7 3 1/4 3 43/64 -none- 7hp, loop frame, twin, yes & 80E0001 up as 32,000+ were built. note 4 and note 8 1913 Model E 40E001-up 1 4 3 1/4 3 43/64 -none- 4hp, loop frame, single, cradle spring rear frame, rigid still avail. 1912 Model D 70D001-up 2 7 3 1/4 3 43/64 -none- 7hp, loop frame, twin, rigid rear only. 1912 Model D 40D001-up 1 4 3 1/4 3 43/64 -none- 4hp, loop frame, single, first for kick starter! 1911 Model C 70C001-up 2 7 3 1/4 3 43/64 -none- 7hp, loop frame, 2nd series, improved carb jets! 1911 Model C 40C001-up 1 4 3 1/4 3 43/64 -none- 4hp, loop frame, 2nd series 1911 Model C 20C001-up 2 5 3 1/4 3 43/64 -none- 5hp, loop frame, twin, 1st series 1911 Model C 1C001-up 1 2.75 3 1/4 3 43/64 -none- 2 hp, loop fr. sgle, 1st series, int and ext brakes, knock out rear axle! 1910 Model B 70B001-up 2 7 3 1/4 3 43/64 -none- 7hp, loop frame, 2nd series 1910 Model B 40B001-up 1 4 3 1/4 3 43/64 -none- 4hp, loop frame, 2nd series, footboards and front axles fitted! 1910 Model B 20B001-up 2 5 2 3/4 3 1/4 -none- 5hp, loop frame, twin 1910 Model B 1B01-up 1 2.75 2 3/4 3 1/4 -none- 2 hp, loop fr. sgle, 1st series, mech. oilers multidisc clutch fitted! 1909 -none- IOA001-up 1 3.5 -none- 3 hp, loop frame, single, 1st series, 26.96ci (440cc) 1909 -none- IA01-up 1 2.75 -none- 2 hp, loop frame, 19.30ci (315cc) 1909 -none- 70A001-up 2 7 -none- 7hp, loop frame, 2nd series, Big Twin, 61ci (1000cc) 1909 -none- 40A001-up 1 4 -none- 4hp, loop frame, 2nd series, 30.50ci(500cc), hand brake introduced! 1909 -none- 20A001-up 2 5 -none- 5hp, loop frame, twin, 38.61ci(630cc), first 2spd transmission! 1908 -none- T500-T1200 2 5 -none- 5hp, diamond frame 1907 -none- T100-T499 2 3.5 -none- 3 hp, diamond frame, first production v-twin! 1907 -none- 5000-up 1 2.25 -none- 2 hp, diamond frame, first yr of mechanically operated valves! 1906 -none- 2350-4048 1 2.5 -none- 2 hp, diamond 1905 -none- 1168-2349 1 2.25 -none- 2 hp, diamond frame, also a light weight twin cyl 1904 -none- 621-1167 1 1.75 -none- 1 hp, diamond frame, first yr of spring front and tandem attachment! 1903 -none- 244-620 1 1.75 -none- 1 hp, diamond frame, first yr of handlebar controls! 1902 -none- 101-243 1 1.75 -none- 1 hp diamond frame, first chain transmission! 1901 -none- -none- 1 1.75 -none- 1 hp diamond frame 90lbs!!, Indian Carb!