2. 4DF***3 adopt PE enhanced fuel injection pump and P-type
sprayer,4DF***4.*6.*7 adopt P***0 oil injection pump and P-type
sprayer to increase pump end pressure and shorten injection time,
improve fuel efficiency, reduce exhaust emission.
3. Adopt low eddy current inlet duct and low resistance air exhaust
channel.
4. Use ******0 clutch, air-conditioning compressor can be
installed.
5. Various positions of supercharger can meet different
requirements of users.
6. Wet cylinder is used to meet China\'s national conditions. Easy
to maintain with low repair costs.
