Model	Serial Numbers	Carburetor Make and Number	Engine Type
A
	410001 - 425850	Marvel-Schebler DLTX-8	All-Fuel
	425851 - 487999	Marvel-Schebler DLTX-18	All-Fuel
	488000 - 491335	Marvel-Schebler DLTX-38	All-Fuel
	491336 - 498999	Marvel-Schebler DLTX-33	All-Fuel
	499000 - 583999	Marvel-Schebler DLTX-53	All-Fuel
	584000 and up	Marvel-Schebler DLTX-71	Gasoline
	584000 and up	Marvel-Schebler DLTX-72	All-Fuel Single Induction
AI/AR/AO
	AO1000 - AO1900	Marvel-Schebler DLTX-19	All-Fuel
	250000 - 252405	Marvel-Schebler DLTX-9	All-Fuel
	252406 - 259999	Marvel-Schebler DLTX-19	All-Fuel
	260000 - 271999	Marvel-Schebler DLTX-41	All-Fuel
	272000 and up	Marvel-Schebler DLTX-71	Gasoline
	272000 and up	Marvel-Schebler DLTX-72	All-Fuel Single Induction
B
	B1000 - B95999	Marvel-Schebler DLTX-10	All-Fuel
	B96000 - B200999	Marvel-Schebler DLTX-34	All-Fuel
	B96000 - B200999	Marvel-Schebler DLTX-107U	All-Fuel
	B201000 and up	Marvel-Schebler DLTX-67	Gasoline
	B201000 and up	Marvel-Schebler DLTX-73	All-Fuel Single Induction
BR/BO
	325001 and up	Marvel-Schebler DLTX-10	All-Fuel
C
	1 - 125	Ensign BJ#5B600J	All-Fuel
D
	30401 - 30450	Marvel-Schebler DLTX-1	All-Fuel
	30451 - 39906	Schebler DX304	All-Fuel
	39907 - 45667	Marvel-Schebler DLTX-1	All-Fuel
	46768 - 49773	Schebler DX304	All-Fuel
	49774 - 109943	Marvel-Schebler DLTX-3	All-Fuel
	109944-128110	Marvel-Schebler DLTX-6	All-Fuel
	128111 - 161644	Marvel-Schebler DLTX-16	All-Fuel
	161645 and up	Marvel-Schebler DLTX-63	All-Fuel
Dain
	1918-01 - 1918-100	Stromberg M2 1.25"	Gasoline
G
	G1001 - G12999	Marvel-Schebler DLTX-24	Gasoline
	G13000 and up	Marvel-Schebler DLTX-51	Gasoline
	G13000 and up	Marvel-Schebler DLTX-108U	Gasoline
GP General Purpose
	20211 - 223802	Ensign BJ#5B600J	All-Fuel
	223803 - 229362	Ensign Model K	Gasoline
	223803 - 229362	Marvel-Schebler DLTX-5	All-Fuel
	229363 and up	Marvel-Schebler DLTX-15	All-Fuel
GP Wide Tread
	400000 - 402039	Ensign BJ#5B600J	All-Fuel
	402040 - 404809	Marvel-Schebler DLTX-5	All-Fue
	402040 - 404809	Marvel-Schebler DLTX-15	All-Fuel
	404810 and up	Marvel-Schebler DLTX-17	All-Fuel
GP Orchard
	000001-014999	Marvel-Schebler DLTX-5	All-Fuel
	O15000 - O15732	Marvel-Schebler DLTX-15	All-Fuel
GP "Potato"
	5000 - 5202	Ensign BJ#5B600J	All-Fuel
H
	H1000 - H26909	Marvel-Schebler DLTX-26	All-Fuel
	H27000 - H61116	Marvel-Schebler DLTX-46	All-Fuel
L
	L621079 - L624999	Marvel-Schebler TCX-12	Gasoline
	L625000 - L639999	Marvel-Schebler TSX-13	Gasoline
	L629195 - L639999	Marvel-Schebler TSX-45	Used with Heavy Duty Air Cleaners
	L640000 and up	Marvel-Schebler TSX-91	Gasoline - Magneto Ignition
	L640000 and up	Marvel-Schebler TSX-89	Gasoline - Battery Ignition
LA
	LA1000 and up	Marvel-Schebler TSX-60	Gasoline - Magneto Ignition
	LA1000 and up	Marvel-Schebler TSX-85	Gasoline - Battery Ignition
	LA1000 and up	Marvel-Schebler TSX-90	Gasoline
LI
	LI50000 and up	Marvel-Schebler TSX-91	Gasoline - Magneto Ignition
	LI50000 and up	Marvel-Schebler TSX-89	Gasoline - Battery Ignition
LU
	LU1000 and up	Marvel-Schebler TSX-60	Gasoline - Magneto Ignition
	LU1000 and up	Marvel-Schebler TSX-90	Gasoline
M
	M10001 and up	Marvel-Schebler TSX-245	Gasoline
	M10001 and up	Marvel-Schebler TSX-475	All-Fuel
MC
	MC10001 and up	Marvel-Schebler TSX-245	Gasoline
	MC10001 and up	Marvel-Schebler TSX-475	All-Fuel
MI
	MI10001 and up	Marvel-Schebler TSX-245	Gasoline
	MI10001 and up	Marvel-Schebler TSX-475	All-Fuel
MT
	MT10001 and up	Marvel-Schebler TSX-245	Gasoline
	MT10001 and up	Marvel-Schebler TSX-245	All-Fuel
R Diesel
	R1001 - R7899	Marvel-Schebler SL-2	Cranking Engine
	R7900 and up	Marvel-Schebler SL-2	Cranking Engine
Waterloo Boy L & LA
	1000 - 1025	Schebler	All-Fuel
Waterloo Boy N &Overtime N
	10020 - 31412	Schebler D 1.5"	All-Fuel
Waterloo Boy R & Overtime R
	1026 - 10336	Schebler 1.5"	All-Fuel
Y, L/62 Prototype
	24 built in 1936	Marvel-Schebler TCX-12	Gasoline
	24 built in 1936	Zenith	Gasoline
40
	60001 and up	Marvel-Schebler TSX-530	Gasoline
	60001 and up	Marvel-Schebler TSX-562	All-Fuel
50
	5000001 - 5022299	Marvel-Schebler DLTX-75	Gasoline Dual Induction
	5022300 and up	Marvel-Schebler DLTX-86	Gasoline Dual Induction
	5000001 - 5015950	Marvel-Schebler DLTX-73	All-Fuel Single Induction
	5015951 and up	Marvel-Schebler DLTX-83	All-Fuel Dual Induction
	5024000 - 5030599	John Deere AB4872R	LP-Gas
	5030600 and up	John Deere AB4853R	LP-Gas
60
	6000001 and up	Marvel-Schebler DLTX-81	Gasoline Dual Induction
	6000000 - 6013899	Marvel-Schebler DLTX-72	All-Fuel Single Induction
	6013900 and up	Marvel-Schebler DLTX-84	All-Fuel Dual Induction
	6013900 and up	Marvel-Schebler DLTX-109U	All-Fuel Dual Induction
	6040105 - 6057649	John Deere AA6084R	LP-Gas
	6057650 and up	John Deere AA6268R	LP-Gas
62
	621000 - 621078	Marvel-Schebler TCX-12	Gasoline
	621000 - 621078	Zenith	Gasoline
70
	7000001 and up	Marvel-Schebler DLTX-82	Gasoline Dual Induction
	7000001 and up	Marvel-Schebler DLTX-85	All-Fuel Dual Induction
	7014800 - 7034949	John Deere AA6084R	LP-Gas
	7034450 and up	John Deere AA6268R	LP-Gas
70 Diesel
	7000001 and up	Zenith TU3-1/2X1C	Cranking Engine
80 Diesel
	8000001 and up	ZenithTU3-1/2X1C	Cranking Engine
320
	320001 and up	Marvel-Schebler TSX-245	Gasoline
	320001 and up	Marvel-Schebler TSX-475	Gasoline
330
	330001 and up	Marvel-Schebler TSX-245	Gasoline
	330001 and up	Marvel-Schebler TSX-475	All-Fuel
420
	80001 - 113755	Marvel-Schebler TSX-641	Gasoline
	113756 and up	Marvel-Schebler TSX-688	Gasoline
	80001 and up	Marvel-Schebler TSX-678	All-Fuel
	80001 and up	Marvel-Schebler TSX-689	Gasoline
	125001 and up	Marvel-Schebler TSG-80.5	LP-Gas
430
	140001 and up	Marvel-Schebler TSX-688	Gasoline
	140001 and up	Marvel-Schebler TSX-678	All-Fuel
	140001 and up	Marvel-Schebler TSG-80.5	LP-Gas
440 Industrial
	440001 and up	Marvel Schebler TSX-756	Gasoline
	440001 and up	Marvel Schebler TSX-768	All-Fuel
	44801 and up	Marvel Schebler TSX-777	Gasoline
520
	5200001 and up	Marvel-Schebler DLTX-99	All-Fuel
	5200001 and up	Marvel-Schebler DLTX-96	All-Fuel
	5200001 and up	John Deere AB5285R	LP-Gas
530
	5300000 and up	Marvel-Schebler DLTX-99	Gasoline
	5300000 and up	Marvel-Schebler DLTX-99	All-Fuel
	5300000 and up	Marvel-Schebler AB5285R	LP-Gas
620
	6200001 and up	Marvel-Schebler DLTX-94	Gasoline
	6200001 and up	Marvel-Schebler DLTX-106U	Gasoline
	6200001 and up	Marvel-Schebler DLTX-97	All-Fuel
	6200001 and up	John Deere AA6821R	LP-Gas
620 Orchard
	6200001 - 6223999	Marvel-Schebler DLTX-94	Gasoline
	6224000 and up	Marvel-Schebler DLTX-106	Gasoline
630
	6300000 and up	Marvel-Schebler DLTX-94	Gasoline
	6300000 and up	Marvel-Schebler DLTX-106U	Gasoline
	6300000 and up	Marvel-Schebler DLTX-97	All-Fuel
	6300000 and up	John Deere AA6821R	LP-Gas
		Duplex inlet vent chamber
720
	7200001 and up	Marvel-Schebler DLTX-95	Gasoline
	7200001 and up	Marvel-Schebler DLTX-98	All-Fuel
	7200001 and up	John Deere AF2828R	LP-Gas
		Duplex inlet vent chamber
720 Diesel
	7200001 - 7214899	Zenith TU3-1/2X1C	Cranking Engine
	7214900 and up	Zenith TU3X1C	Cranking Engine
730
	7300000 and up	Marvel-Schebler DLTX-95	Gasoline
	7300000 and up	Marvel-Schebler DLTX-98	All-Fuel
	7300000 and up	John Deere AF2828R	LP-Gas
		Duplex inlet vent chamber
730 Diesel
	7300000 and up	Zenith TU3X1C	Cranking Engine
820 Diesel
	8200001 - 8203099	Zenith TU3-1/2X1C	Cranking Engine
	8203100 and up	Zenith TU3X1C	Cranking Engine
830 Diesel
	8300000 and up	Zenith TU3X1C	Cranking Engine
840 Diesel
	8400000 and up	Zenith TU3X1C	Cranking Engine
1010
	All	TSX-809	Gasoline
	All	TSX-860	Gasoline
1010 (Crawler)
	All	TSX-809	Gasoline
	All	TSX-860	Gasoline
1020
	All	TSX-904(SL)	Gasoline
1520
	All	TSX-944(SL)	Gasoline
2010 (Crawler)
	All	TSX-808	Gasoline
2010
	000001 - 059721	TSX-810	Gasoline
	059722 and up	TSX-899	Gasoline
2020
	All	TSX-905(SL)	Gasoline
2030
	All	TSX-945(SL)	Gasoline
2510
	All	TSX-894	Gasoline
	All	TSX-905	Gasoline
	All	TSX-905(SL)	Gasoline
2520
	All	TSX-945(SL)	Gasoline
3010
	All	Zenith (cast iron)	Gasoline
	All	Marvel-Schebler USX	Gasoline
3020
	All	Zenith (cast iron)	Gasoline
	All	Marvel-Schebler USX	Gasoline
4000
	All	Zenith (cast iron)	Gasoline
	All	Marvel-Schebler USX	Gasoline
4010
	All	Zenith (cast iron)	Gasoline
	All	Marvel-Schebler USX	Gasoline
4020
	All	Zenith (cast iron)	Gasoline
	All	Marvel-Schebler USX	Gasoline