4D3x family
From Mitsipedia
The 4D3x series are 4 cylinder heavy-duty diesel engines fitted to Mitsubishi's Canter and Fuso trucks. Each is identified by it's model and variant code (eg. 4D31-1AT)
4D30
The 4D30 is a 3.3 Litre engine displacing 3298cc. It uses a 100.00x105.00mm bore and stroke.
4D31
The 4D31 is a 3.3 Litre engine displacing 3298cc. It uses a 100.00x105.00mm bore and stroke built from 1982 to 1991. Some versions were turbocharged.
4D32
The 4D32 is a 3.6 Litre engine displacing 3567cc. It uses a 104.00x105.00mm bore and stroke.
4D33
The 4D33 is a 4.2 Litre engine displacing 4212cc. It uses a 108.00x115.00mm bore and stroke.
4D34
The 4D34 is a 3.9 Litre engine displacing 3907 cc. It uses a 104.0x115.0mm bore and stroke.