identifying your gravely onan engine your gravely-onan engine onan nb engine, single cylinder, 10-12...

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Identifying Your Gravely-Onan Engine ONAN NB ENGINE, SINGLE CYLINDER, 10-12 H.P. ENGINE # SPEC HORSEPOWER GRAVELY MODEL YEAR NB-MS 1846A 10 424 1970-1971 NBOMS 1847A 12 430 1970-1971 ONAN CCKA ENGINE, TWIN CYLINDER, CAST IRON, 16.5 HP ENGINE # SPEC HORSEPOWER GRAVELY MODEL YEAR CCKA-MS 1831 G 16.5 450 1968-1970 CCKA-MS 1897 G 16.5 450 1968-1970 CCKA-MS 1949 G 16.5 450 1968-1970 CCKA-MS 2043 G 16.5 450 1968-1970 CCKA-MS 2111 G 16.5 CCKA-MS 2567 G 16.5 800-8000 SERIES 1971-1981 CCKA-MS 2813 J 16.5 CCKA-MS 3110 J 16.5 816, 817, 8171 CCKA-MS 3612 J 16.5 8177, 8179 ONAN B43 ENGINE,, TWIN CYLINDER, ALUMINUM WITH CAST IRON SLEEVES, 16 HP ENGINE # SPEC HORSEPOWER GRAVELY MODEL YEAR B43-GAO 18/3423A 16 816-T 1978 B43-GAO 18/3423A 16 8162-T 1979-1980 B43-GAO 18/3423A 16 8163-T 1979-1980 ONAN B48 ENGINE,, TWIN CYLINDER, ALUMINUM WITH CAST IRON SLEEVES, 18 HP ENGINE # SPEC HORSEPOWER GRAVELY MODEL YEAR B48-GAO 18/3422A 18 818-T 1978 B48-GAO 18/3422A 18 8182-T 1979-1980 B48-GAO 18/3422A 18 8183-T 1979-1980 ONAN B48 ENGINE,, TWIN CYLINDER, ALUMINUM WITH CAST IRON SLEEVES, 19.9 HP ENGINE # SPEC HORSEPOWER GRAVELY MODEL YEAR B48-GAO 19.9/3738 B 19.9 8199 1980-1981 ONAN P224 ENGINE,, TWIN CYLINDER, ALUMINUM WITH CAST IRON SLEEVES, 24 HP ENGINE # SPEC HORSEPOWER GRAVELY MODEL YEAR P224 24 24-G 1989 ONAN P220 ENGINE, VERTICAL TWIN CYLINDER, WITH CAST IRON SLEEVES, 20 HP ENGINE # SPEC HORSEPOWER GRAVELY MODEL YEAR P220 20 24-G 1989 From the serial number, one can determine the year. Serial numbers of Onan engines contain one letter and then 9-10 digits. The letter corresponds to the month the engine was produced, and the next two digits correspond to the year. A-January, B-February, C-March, D-April, E-May, F-June, G-July, H-August, I-September, J-October, K-November, L-December. Example: L845487021 - L = December and 84 = 1984.

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Identifying Your Gravely-Onan Engine ONAN NB ENGINE, SINGLE CYLINDER, 10-12 H.P.

ENGINE # SPEC HORSEPOWER GRAVELY MODEL YEAR NB-MS 1846A 10 424 1970-1971 NBOMS 1847A 12 430 1970-1971

ONAN CCKA ENGINE, TWIN CYLINDER, CAST IRON, 16.5 HP

ENGINE # SPEC HORSEPOWER GRAVELY MODEL YEAR CCKA-MS 1831 G 16.5 450 1968-1970 CCKA-MS 1897 G 16.5 450 1968-1970 CCKA-MS 1949 G 16.5 450 1968-1970 CCKA-MS 2043 G 16.5 450 1968-1970 CCKA-MS 2111 G 16.5 CCKA-MS 2567 G 16.5 800-8000 SERIES 1971-1981 CCKA-MS 2813 J 16.5 CCKA-MS 3110 J 16.5 816, 817, 8171 CCKA-MS 3612 J 16.5 8177, 8179

ONAN B43 ENGINE,, TWIN CYLINDER, ALUMINUM WITH CAST IRON SLEEVES, 16 HP

ENGINE # SPEC HORSEPOWER GRAVELY MODEL YEAR B43-GAO 18/3423A 16 816-T 1978 B43-GAO 18/3423A 16 8162-T 1979-1980 B43-GAO 18/3423A 16 8163-T 1979-1980

ONAN B48 ENGINE,, TWIN CYLINDER, ALUMINUM WITH CAST IRON SLEEVES, 18 HP

ENGINE # SPEC HORSEPOWER GRAVELY MODEL YEAR B48-GAO 18/3422A 18 818-T 1978 B48-GAO 18/3422A 18 8182-T 1979-1980 B48-GAO 18/3422A 18 8183-T 1979-1980

ONAN B48 ENGINE,, TWIN CYLINDER, ALUMINUM WITH CAST IRON SLEEVES, 19.9 HP

ENGINE # SPEC HORSEPOWER GRAVELY MODEL YEAR B48-GAO 19.9/3738 B 19.9 8199 1980-1981

ONAN P224 ENGINE,, TWIN CYLINDER, ALUMINUM WITH CAST IRON SLEEVES, 24 HP

ENGINE # SPEC HORSEPOWER GRAVELY MODEL YEAR P224 24 24-G 1989

ONAN P220 ENGINE, VERTICAL TWIN CYLINDER, WITH CAST IRON SLEEVES, 20 HP

ENGINE # SPEC HORSEPOWER GRAVELY MODEL YEAR P220 20 24-G 1989

From the serial number, one can determine the year. Serial numbers of Onan engines contain one letter and then 9-10 digits. The letter corresponds to the month the engine was produced, and the next two digits correspond to the year. A-January, B-February, C-March, D-April, E-May, F-June, G-July, H-August, I-September, J-October, K-November, L-December. Example: L845487021 - L = December and 84 = 1984.