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Make
KOMATSU
Model
WD420.3 (Wheeled Bulldozers)
Engine
DT

Application
Recommendation
Capacity (gal)
Data Sheet
Sales Sheet
Engine (DT)
Premium
Maxtron DEO SAE 10W-30
(a, b, c, d, e)
5.02
PDS
Mainline
Superlube TMS SAE 10W-30
PDS
Rear Axle
Ultra Premium
Maxtron THF +
(f)
15.9
PDS
Premium
Qwiklift HTB
PDS
Transmission
Superlube 518 Diesel Engine Oil SAE 10W
15.9
PDS
Front Axle
Ultra Premium
Maxtron THF +
(f)
15.9
PDS
Premium
Qwiklift HTB
PDS
Coolant
Refer to Technical
13.2
Hydraulics
Ultra Premium
Indol Premium Anti-Wear Hydraulic Oil ISO 46
(g, h, i)
55.5 / 36.5
PDS
Premium
Indol Premium Anti-Wear Hydraulic Oil ISO 32 MV
PDS
Mainline
Indol EH ISO 46
PDS
Grease points incl. fifth wheels
Ultra Premium
Maxtron FS NLGI 2
Premium
Blue Gard 500+ NLGI 2
Mainline
ML 365 Grease EP NLGI 2
PDS
Engine (DT)
Recommendation:
Premium Maxtron DEO SAE 10W-30
Mainline Superlube TMS SAE 10W-30
(a, b, c, d, e)
Capacity 5.02(gal)
Rear Axle
Recommendation:
Ultra Premium Maxtron THF +
Premium Qwiklift HTB
(f)
Capacity 15.9(gal)
Transmission
Recommendation:
Ultra Premium Superlube 518 Diesel Engine Oil SAE 10W
Capacity 15.9(gal)
Front Axle
Recommendation:
Ultra Premium Maxtron THF +
Premium Qwiklift HTB
(f)
Capacity 15.9(gal)
Coolant
Recommendation:
Ultra Premium Refer to Technical
Capacity 13.2(gal)
Hydraulics
Recommendation:
Ultra Premium Indol Premium Anti-Wear Hydraulic Oil ISO 46
Premium Indol Premium Anti-Wear Hydraulic Oil ISO 32 MV
Mainline Indol EH ISO 46
(g, h, i)
Capacity 55.5 / 36.5(gal)
Grease points incl. fifth wheels
Recommendation:
Ultra Premium Maxtron FS NLGI 2
Premium Blue Gard 500+ NLGI 2
Mainline ML 365 Grease EP NLGI 2

General Notes

There are no notes to display for this model

Lubricant / Capacity Notes

a.
Alternative recommendations, -22°F to 68°F: Refer to Technical
b.
Alternative recommendations, -4°F to 122°F: Maxtron DEO SAE 10W-30 / Superlube TMS SAE 10W-30
c.
Alternative recommendations, -4°F to 50°F: Refer to Technical
d.
Alternative recommendations, 5°F to 122°F: Maxtron DEO SAE 15W-40 / Superlube TMS SAE 15W-40
e.
Alternative recommendations, 32°F to 122°F: Superlube TMS SAE 10W-30
f.
Standard axles: Komatsu recommend Fuchs Renogear Hydra ZF 20W-40; Multi-disc locking differentials: Maxtron THF + / Qwiklift HTB
g.
Includes steering and brakes
h.
Alternative recommendations, -31°F to 122°F: Indol Premium Anti-Wear Hydraulic Oil ISO 46 / Indol Premium Anti-Wear Hydraulic Oil ISO 32 MV / Indol EH ISO 46
i.
Alternative recommendations, -31°F to 104°F: Superlube 518 Diesel Engine Oil SAE 10W

Oil Change Intervals

Engine (DT)
Hours Max
250
Rear Axle
Hours Max
1000
Transmission
Months Max
6
Hours Max
1000
Front Axle
Hours Max
1000
Coolant
Months Max
12
Hours Max
2000
Hydraulics
Hours Max
2000