Recently I've gotten interested in trying to find out more about John Deere's production of the Model 14SB mower, and specifically about breaking down the production serial numbers by their year of manufacture. Below is the production information that I have been able to obtain so far from John Deere:
JOHN DEERE 14SB MOWERS
(SERIAL NUMBERS BY YEAR OF MANUFACTURE)
14SB WALK-BEHIND ROTARY MOWER (410001 - 450000) BASE UNIT, North American, Kawasaki Engine, Blade Brake Clutch, 1987 (Green Deck)
14SB WALK-BEHIND ROTARY MOWER (450001 - 750000) BASE UNIT, North American, Kawasaki Engine, Blade Brake Clutch, 1988 (Green Deck)
14SB WALK-BEHIND ROTARY MOWER (4 CYCLE) (010001 - 175000) BASE UNIT, North American, Silver Jubilee, Kawasaki, 1989-1990, (Silver Deck)
14SB WALK-BEHIND ROTARY MOWER (4 CYCLE) (175001 - ) BASE UNIT, North American, Silver Jubilee, Kawasaki, 1991, (Silver Deck)
14SB WALK-BEHIND ROTARY MOWER (255001 - 400000) BASE UNIT, North American, Silver Jubilee, Kawasaki, 1993-1994, (Silver Deck)
14SB WALK-BEHIND ROTARY MOWER (400001 - 470000) BASE UNIT, North American, Silver Jubilee, Kawasaki Engine, Residential, 1996, (Silver Deck)
14SB WALK-BEHIND ROTARY MOWER (470001 - ) BASE UNIT, North American, Silver Jubilee, Kawasaki Engine, Residential, 1997, (Silver Deck)
JOHN DEERE 14SB MOWERS
(SERIAL NUMBERS BY YEAR OF MANUFACTURE)
14SB WALK-BEHIND ROTARY MOWER (410001 - 450000) BASE UNIT, North American, Kawasaki Engine, Blade Brake Clutch, 1987 (Green Deck)
14SB WALK-BEHIND ROTARY MOWER (450001 - 750000) BASE UNIT, North American, Kawasaki Engine, Blade Brake Clutch, 1988 (Green Deck)
14SB WALK-BEHIND ROTARY MOWER (4 CYCLE) (010001 - 175000) BASE UNIT, North American, Silver Jubilee, Kawasaki, 1989-1990, (Silver Deck)
14SB WALK-BEHIND ROTARY MOWER (4 CYCLE) (175001 - ) BASE UNIT, North American, Silver Jubilee, Kawasaki, 1991, (Silver Deck)
14SB WALK-BEHIND ROTARY MOWER (255001 - 400000) BASE UNIT, North American, Silver Jubilee, Kawasaki, 1993-1994, (Silver Deck)
14SB WALK-BEHIND ROTARY MOWER (400001 - 470000) BASE UNIT, North American, Silver Jubilee, Kawasaki Engine, Residential, 1996, (Silver Deck)
14SB WALK-BEHIND ROTARY MOWER (470001 - ) BASE UNIT, North American, Silver Jubilee, Kawasaki Engine, Residential, 1997, (Silver Deck)