C
Caterpillar
7
Cummins
5
D
Detroit
1
G
GM
2
I
Iveco
3
M
MAN
6
Mercury
2
P
Perkins
4
S
Suzuki
2
V
Vetus
1
Volvo
4
Volvo Penta
33
W
WaterWorld
1
Y
Yanmar
17