Which lubricant for your Caterpillar D40D (1989 - 1994)?

Choosing the best Yacco lubricant for the maintenance of your Caterpillar D40D ? Yacco gives you a complete professional advice on selecting your motor oil, gearbox oil (transaxle), power steering and brake fluids, coolants.


Differential, front

Differential, rear

Disconnect mechanism 4WD, 6WD

Final drives, front

Final drives, rear

Hydraulic system

Splitter gearbox 6WD

Trailing axle


Transmission Powershift

Grease points/nipples

Drive line mid bearing group

Drive line universal joints

Hitch through drive

Oil immersed disc brakes

The database in this YACCO web site is a guide for the correct oil for your vehicle. It is established by comparing the range of YACCO lubricants to the standards and requirements of the manufacturers. This web site helps decision-making but does not replace the oil recommendation advice of the professional, whose liability can be engaged in case of non-respect of the oil sump capacities and of the OEM matched specification indicated in the maintenance booklet and/or in the technical documentation of the Manufacturer.